Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] wrong attribute of HUB chip written in uv_setup()
  [IA64] remove trailing space in messages
  [IA64] use asm-generic/scatterlist.h
  [IA64] build arch/ia64/kernel/acpi-ext.o when CONFIG_ACPI
  [IA64] Only build arch/ia64/kernel/acpi.o when CONFIG_ACPI
  [IA64] Remove COMPAT_IA32 support

arch/ia64/Kconfig

@@ -499,23 +499,6 @@ config ARCH_PROC_KCORE_TEXT
 	def_bool y
 	depends on PROC_KCORE
 
-config IA32_SUPPORT
-	bool "Support for Linux/x86 binaries"
-	help
-	  IA-64 processors can execute IA-32 (X86) instructions.  By
-	  saying Y here, the kernel will include IA-32 system call
-	  emulation support which makes it possible to transparently
-	  run IA-32 Linux binaries on an IA-64 Linux system.
-	  If in doubt, say Y.
-
-config COMPAT
-	bool
-	depends on IA32_SUPPORT
-	default y
-
-config COMPAT_FOR_U64_ALIGNMENT
-	def_bool COMPAT
-
 config IA64_MCA_RECOVERY
 	tristate "MCA recovery from errors other than TLB."
 

arch/ia64/Makefile

@@ -46,7 +46,6 @@ head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o
 
 libs-y				+= arch/ia64/lib/
 core-y				+= arch/ia64/kernel/ arch/ia64/mm/
-core-$(CONFIG_IA32_SUPPORT)	+= arch/ia64/ia32/
 core-$(CONFIG_IA64_DIG) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_DIG_VTD) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/

arch/ia64/configs/bigsur_defconfig

@@ -131,8 +131,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 # CONFIG_VIRTUAL_MEM_MAP is not set
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 # CONFIG_IA64_MCA_RECOVERY is not set
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/generic_defconfig

@@ -205,8 +205,6 @@ CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
 CONFIG_HAVE_ARCH_NODEDATA_EXTENSION=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y

arch/ia64/configs/gensparse_defconfig

@@ -139,8 +139,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_NUMA=y
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/sim_defconfig

@@ -130,8 +130,6 @@ CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 # CONFIG_VIRTUAL_MEM_MAP is not set
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 # CONFIG_IA64_MCA_RECOVERY is not set
 # CONFIG_PERFMON is not set
 CONFIG_IA64_PALINFO=m

arch/ia64/configs/tiger_defconfig

@@ -154,7 +154,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-# CONFIG_IA32_SUPPORT is not set
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/xen_domu_defconfig

@@ -200,8 +200,6 @@ CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-# CONFIG_IA32_SUPPORT is not set
-# CONFIG_COMPAT_FOR_U64_ALIGNMENT is not set
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/configs/zx1_defconfig

@@ -150,8 +150,6 @@ CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_VIRTUAL_MEM_MAP=y
 CONFIG_HOLES_IN_ZONE=y
-CONFIG_IA32_SUPPORT=y
-CONFIG_COMPAT=y
 CONFIG_IA64_MCA_RECOVERY=y
 CONFIG_PERFMON=y
 CONFIG_IA64_PALINFO=y

arch/ia64/ia32/Makefile

@@ -1,11 +0,0 @@
-#
-# Makefile for the ia32 kernel emulation subsystem.
-#
-
-obj-y := ia32_entry.o sys_ia32.o ia32_signal.o \
-	 ia32_support.o ia32_traps.o binfmt_elf32.o ia32_ldt.o
-obj-$(CONFIG_AUDIT) += audit.o
-
-# Don't let GCC uses f16-f31 so that save_ia32_fpstate_live() and
-# restore_ia32_fpstate_live() can be sure the live register contain user-level state.
-CFLAGS_ia32_signal.o += -mfixed-range=f16-f31

arch/ia64/ia32/audit.c

@@ -1,42 +0,0 @@
-#include "../../x86/include/asm/unistd_32.h"
-
-unsigned ia32_dir_class[] = {
-#include <asm-generic/audit_dir_write.h>
-~0U
-};
-
-unsigned ia32_chattr_class[] = {
-#include <asm-generic/audit_change_attr.h>
-~0U
-};
-
-unsigned ia32_write_class[] = {
-#include <asm-generic/audit_write.h>
-~0U
-};
-
-unsigned ia32_read_class[] = {
-#include <asm-generic/audit_read.h>
-~0U
-};
-
-unsigned ia32_signal_class[] = {
-#include <asm-generic/audit_signal.h>
-~0U
-};
-
-int ia32_classify_syscall(unsigned syscall)
-{
-	switch(syscall) {
-	case __NR_open:
-		return 2;
-	case __NR_openat:
-		return 3;
-	case __NR_socketcall:
-		return 4;
-	case __NR_execve:
-		return 5;
-	default:
-		return 1;
-	}
-}

arch/ia64/ia32/binfmt_elf32.c

@@ -1,245 +0,0 @@
-/*
- * IA-32 ELF support.
- *
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2001 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	initialize csd/ssd/tssd/cflg for ia32_load_state
- * 04/13/01	D. Mosberger	dropped saving tssd in ar.k1---it's not needed
- * 09/14/01	D. Mosberger	fixed memory management for gdt/tss page
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/security.h>
-
-#include <asm/param.h>
-#include <asm/signal.h>
-
-#include "ia32priv.h"
-#include "elfcore32.h"
-
-/* Override some function names */
-#undef start_thread
-#define start_thread			ia32_start_thread
-#define elf_format			elf32_format
-#define init_elf_binfmt			init_elf32_binfmt
-#define exit_elf_binfmt			exit_elf32_binfmt
-
-#undef CLOCKS_PER_SEC
-#define CLOCKS_PER_SEC	IA32_CLOCKS_PER_SEC
-
-extern void ia64_elf32_init (struct pt_regs *regs);
-
-static void elf32_set_personality (void);
-
-static unsigned long __attribute ((unused))
-randomize_stack_top(unsigned long stack_top);
-
-#define setup_arg_pages(bprm,tos,exec)		ia32_setup_arg_pages(bprm,exec)
-#define elf_map				elf32_map
-
-#undef SET_PERSONALITY
-#define SET_PERSONALITY(ex)	elf32_set_personality()
-
-#define elf_read_implies_exec(ex, have_pt_gnu_stack)	(!(have_pt_gnu_stack))
-
-/* Ugly but avoids duplication */
-#include "../../../fs/binfmt_elf.c"
-
-extern struct page *ia32_shared_page[];
-extern unsigned long *ia32_gdt;
-extern struct page *ia32_gate_page;
-
-int
-ia32_install_shared_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	vmf->page = ia32_shared_page[smp_processor_id()];
-	get_page(vmf->page);
-	return 0;
-}
-
-int
-ia32_install_gate_page (struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	vmf->page = ia32_gate_page;
-	get_page(vmf->page);
-	return 0;
-}
-
-
-static const struct vm_operations_struct ia32_shared_page_vm_ops = {
-	.fault = ia32_install_shared_page
-};
-
-static const struct vm_operations_struct ia32_gate_page_vm_ops = {
-	.fault = ia32_install_gate_page
-};
-
-void
-ia64_elf32_init (struct pt_regs *regs)
-{
-	struct vm_area_struct *vma;
-
-	/*
-	 * Map GDT below 4GB, where the processor can find it.  We need to map
-	 * it with privilege level 3 because the IVE uses non-privileged accesses to these
-	 * tables.  IA-32 segmentation is used to protect against IA-32 accesses to them.
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_GDT_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_SIZE;
-		vma->vm_page_prot = PAGE_SHARED;
-		vma->vm_flags = VM_READ|VM_MAYREAD|VM_RESERVED;
-		vma->vm_ops = &ia32_shared_page_vm_ops;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	/*
-	 * When user stack is not executable, push sigreturn code to stack makes
-	 * segmentation fault raised when returning to kernel. So now sigreturn
-	 * code is locked in specific gate page, which is pointed by pretcode
-	 * when setup_frame_ia32
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_GATE_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_SIZE;
-		vma->vm_page_prot = PAGE_COPY_EXEC;
-		vma->vm_flags = VM_READ | VM_MAYREAD | VM_EXEC
-				| VM_MAYEXEC | VM_RESERVED;
-		vma->vm_ops = &ia32_gate_page_vm_ops;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	/*
-	 * Install LDT as anonymous memory.  This gives us all-zero segment descriptors
-	 * until a task modifies them via modify_ldt().
-	 */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma) {
-		vma->vm_mm = current->mm;
-		vma->vm_start = IA32_LDT_OFFSET;
-		vma->vm_end = vma->vm_start + PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
-		vma->vm_page_prot = PAGE_SHARED;
-		vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE;
-		down_write(&current->mm->mmap_sem);
-		{
-			if (insert_vm_struct(current->mm, vma)) {
-				kmem_cache_free(vm_area_cachep, vma);
-				up_write(&current->mm->mmap_sem);
-				BUG();
-			}
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	ia64_psr(regs)->ac = 0;		/* turn off alignment checking */
-	regs->loadrs = 0;
-	/*
-	 *  According to the ABI %edx points to an `atexit' handler.  Since we don't have
-	 *  one we'll set it to 0 and initialize all the other registers just to make
-	 *  things more deterministic, ala the i386 implementation.
-	 */
-	regs->r8 = 0;	/* %eax */
-	regs->r11 = 0;	/* %ebx */
-	regs->r9 = 0;	/* %ecx */
-	regs->r10 = 0;	/* %edx */
-	regs->r13 = 0;	/* %ebp */
-	regs->r14 = 0;	/* %esi */
-	regs->r15 = 0;	/* %edi */
-
-	current->thread.eflag = IA32_EFLAG;
-	current->thread.fsr = IA32_FSR_DEFAULT;
-	current->thread.fcr = IA32_FCR_DEFAULT;
-	current->thread.fir = 0;
-	current->thread.fdr = 0;
-
-	/*
-	 * Setup GDTD.  Note: GDTD is the descrambled version of the pseudo-descriptor
-	 * format defined by Figure 3-11 "Pseudo-Descriptor Format" in the IA-32
-	 * architecture manual. Also note that the only fields that are not ignored are
-	 * `base', `limit', 'G', `P' (must be 1) and `S' (must be 0).
-	 */
-	regs->r31 = IA32_SEG_UNSCRAMBLE(IA32_SEG_DESCRIPTOR(IA32_GDT_OFFSET, IA32_PAGE_SIZE - 1,
-							    0, 0, 0, 1, 0, 0, 0));
-	/* Setup the segment selectors */
-	regs->r16 = (__USER_DS << 16) | __USER_DS; /* ES == DS, GS, FS are zero */
-	regs->r17 = (__USER_DS << 16) | __USER_CS; /* SS, CS; ia32_load_state() sets TSS and LDT */
-
-	ia32_load_segment_descriptors(current);
-	ia32_load_state(current);
-}
-
-/*
- * Undo the override of setup_arg_pages() without this ia32_setup_arg_pages()
- * will suffer infinite self recursion.
- */
-#undef setup_arg_pages
-
-int
-ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
-{
-	int ret;
-
-	ret = setup_arg_pages(bprm, IA32_STACK_TOP, executable_stack);
-	if (!ret) {
-		/*
-		 * Can't do it in ia64_elf32_init(). Needs to be done before
-		 * calls to elf32_map()
-		 */
-		current->thread.ppl = ia32_init_pp_list();
-	}
-
-	return ret;
-}
-
-static void
-elf32_set_personality (void)
-{
-	set_personality(PER_LINUX32);
-	current->thread.map_base  = IA32_PAGE_OFFSET/3;
-}
-
-static unsigned long
-elf32_map(struct file *filep, unsigned long addr, struct elf_phdr *eppnt,
-		int prot, int type, unsigned long unused)
-{
-	unsigned long pgoff = (eppnt->p_vaddr) & ~IA32_PAGE_MASK;
-
-	return ia32_do_mmap(filep, (addr & IA32_PAGE_MASK), eppnt->p_filesz + pgoff, prot, type,
-			    eppnt->p_offset - pgoff);
-}
-
-#define cpu_uses_ia32el()	(local_cpu_data->family > 0x1f)
-
-static int __init check_elf32_binfmt(void)
-{
-	if (cpu_uses_ia32el()) {
-		printk("Please use IA-32 EL for executing IA-32 binaries\n");
-		unregister_binfmt(&elf_format);
-	}
-	return 0;
-}
-
-module_init(check_elf32_binfmt)

arch/ia64/ia32/elfcore32.h

@@ -1,148 +0,0 @@
-/*
- * IA-32 ELF core dump support.
- *
- * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com>
- *
- * Derived from the x86_64 version
- */
-#ifndef _ELFCORE32_H_
-#define _ELFCORE32_H_
-
-#include <asm/intrinsics.h>
-#include <asm/uaccess.h>
-
-/* Override elfcore.h */
-#define _LINUX_ELFCORE_H 1
-typedef unsigned int elf_greg_t;
-
-#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct ia32_user_i387_struct elf_fpregset_t;
-typedef struct ia32_user_fxsr_struct elf_fpxregset_t;
-
-struct elf_siginfo
-{
-	int	si_signo;			/* signal number */
-	int	si_code;			/* extra code */
-	int	si_errno;			/* errno */
-};
-
-#ifdef CONFIG_VIRT_CPU_ACCOUNTING
-/*
- * Hacks are here since types between compat_timeval (= pair of s32) and
- * ia64-native timeval (= pair of s64) are not compatible, at least a file
- * arch/ia64/ia32/../../../fs/binfmt_elf.c will get warnings from compiler on
- * use of cputime_to_timeval(), which usually an alias of jiffies_to_timeval().
- */
-#define cputime_to_timeval(a,b) \
-	do { (b)->tv_usec = 0; (b)->tv_sec = (a)/NSEC_PER_SEC; } while(0)
-#else
-#define jiffies_to_timeval(a,b) \
-	do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; } while(0)
-#endif
-
-struct elf_prstatus
-{
-	struct elf_siginfo pr_info;	/* Info associated with signal */
-	short	pr_cursig;		/* Current signal */
-	unsigned int pr_sigpend;	/* Set of pending signals */
-	unsigned int pr_sighold;	/* Set of held signals */
-	pid_t	pr_pid;
-	pid_t	pr_ppid;
-	pid_t	pr_pgrp;
-	pid_t	pr_sid;
-	struct compat_timeval pr_utime;	/* User time */
-	struct compat_timeval pr_stime;	/* System time */
-	struct compat_timeval pr_cutime;	/* Cumulative user time */
-	struct compat_timeval pr_cstime;	/* Cumulative system time */
-	elf_gregset_t pr_reg;	/* GP registers */
-	int pr_fpvalid;		/* True if math co-processor being used.  */
-};
-
-#define ELF_PRARGSZ	(80)	/* Number of chars for args */
-
-struct elf_prpsinfo
-{
-	char	pr_state;	/* numeric process state */
-	char	pr_sname;	/* char for pr_state */
-	char	pr_zomb;	/* zombie */
-	char	pr_nice;	/* nice val */
-	unsigned int pr_flag;	/* flags */
-	__u16	pr_uid;
-	__u16	pr_gid;
-	pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
-	/* Lots missing */
-	char	pr_fname[16];	/* filename of executable */
-	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
-};
-
-#define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
-	pr_reg[0] = regs->r11;				\
-	pr_reg[1] = regs->r9;				\
-	pr_reg[2] = regs->r10;				\
-	pr_reg[3] = regs->r14;				\
-	pr_reg[4] = regs->r15;				\
-	pr_reg[5] = regs->r13;				\
-	pr_reg[6] = regs->r8;				\
-	pr_reg[7] = regs->r16 & 0xffff;			\
-	pr_reg[8] = (regs->r16 >> 16) & 0xffff;		\
-	pr_reg[9] = (regs->r16 >> 32) & 0xffff;		\
-	pr_reg[10] = (regs->r16 >> 48) & 0xffff;	\
-	pr_reg[11] = regs->r1; 				\
-	pr_reg[12] = regs->cr_iip;			\
-	pr_reg[13] = regs->r17 & 0xffff;		\
-	pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG);	\
-	pr_reg[15] = regs->r12;				\
-	pr_reg[16] = (regs->r17 >> 16) & 0xffff;
-
-static inline void elf_core_copy_regs(elf_gregset_t *elfregs,
-				      struct pt_regs *regs)
-{
-	ELF_CORE_COPY_REGS((*elfregs), regs)
-}
-
-static inline int elf_core_copy_task_regs(struct task_struct *t,
-					  elf_gregset_t* elfregs)
-{
-	ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
-	return 1;
-}
-
-static inline int
-elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-	struct ia32_user_i387_struct *fpstate = (void*)fpu;
-	mm_segment_t old_fs;
-
-	if (!tsk_used_math(tsk))
-		return 0;
-	
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate);
-	set_fs(old_fs);
-
-	return 1;
-}
-
-#define ELF_CORE_COPY_XFPREGS 1
-#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
-static inline int
-elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
-{
-	struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
-	mm_segment_t old_fs;
-
-	if (!tsk_used_math(tsk))
-		return 0;
-
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
-	set_fs(old_fs);
-
-	return 1;
-}
-
-#endif /* _ELFCORE32_H_ */

arch/ia64/ia32/ia32_entry.S

@@ -1,468 +0,0 @@
-#include <asm/asmmacro.h>
-#include <asm/ia32.h>
-#include <asm/asm-offsets.h>
-#include <asm/signal.h>
-#include <asm/thread_info.h>
-
-#include "../kernel/minstate.h"
-
-	/*
-	 * execve() is special because in case of success, we need to
-	 * setup a null register window frame (in case an IA-32 process
-	 * is exec'ing an IA-64 program).
-	 */
-ENTRY(ia32_execve)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(3)
-	alloc loc1=ar.pfs,3,2,4,0
-	mov loc0=rp
-	.body
-	zxt4 out0=in0			// filename
-	;;				// stop bit between alloc and call
-	zxt4 out1=in1			// argv
-	zxt4 out2=in2			// envp
-	add out3=16,sp			// regs
-	br.call.sptk.few rp=sys32_execve
-1:	cmp.ge p6,p0=r8,r0
-	mov ar.pfs=loc1			// restore ar.pfs
-	;;
-(p6)	mov ar.pfs=r0			// clear ar.pfs in case of success
-	sxt4 r8=r8			// return 64-bit result
-	mov rp=loc0
-	br.ret.sptk.few rp
-END(ia32_execve)
-
-ENTRY(ia32_clone)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(5)
-	alloc r16=ar.pfs,5,2,6,0
-	DO_SAVE_SWITCH_STACK
-	mov loc0=rp
-	mov loc1=r16				// save ar.pfs across do_fork
-	.body
-	zxt4 out1=in1				// newsp
-	mov out3=16				// stacksize (compensates for 16-byte scratch area)
-	adds out2=IA64_SWITCH_STACK_SIZE+16,sp	// out2 = &regs
-	mov out0=in0				// out0 = clone_flags
-	zxt4 out4=in2				// out4 = parent_tidptr
-	zxt4 out5=in4				// out5 = child_tidptr
-	br.call.sptk.many rp=do_fork
-.ret0:	.restore sp
-	adds sp=IA64_SWITCH_STACK_SIZE,sp	// pop the switch stack
-	mov ar.pfs=loc1
-	mov rp=loc0
-	br.ret.sptk.many rp
-END(ia32_clone)
-
-GLOBAL_ENTRY(ia32_ret_from_clone)
-	PT_REGS_UNWIND_INFO(0)
-{	/*
-	 * Some versions of gas generate bad unwind info if the first instruction of a
-	 * procedure doesn't go into the first slot of a bundle.  This is a workaround.
-	 */
-	nop.m 0
-	nop.i 0
-	/*
-	 * We need to call schedule_tail() to complete the scheduling process.
-	 * Called by ia64_switch_to after do_fork()->copy_thread().  r8 contains the
-	 * address of the previously executing task.
-	 */
-	br.call.sptk.many rp=ia64_invoke_schedule_tail
-}
-.ret1:
-	adds r2=TI_FLAGS+IA64_TASK_SIZE,r13
-	;;
-	ld4 r2=[r2]
-	;;
-	mov r8=0
-	and r2=_TIF_SYSCALL_TRACEAUDIT,r2
-	;;
-	cmp.ne p6,p0=r2,r0
-(p6)	br.cond.spnt .ia32_strace_check_retval
-	;;					// prevent RAW on r8
-END(ia32_ret_from_clone)
-	// fall through
-GLOBAL_ENTRY(ia32_ret_from_syscall)
-	PT_REGS_UNWIND_INFO(0)
-
-	cmp.ge p6,p7=r8,r0                      // syscall executed successfully?
-	adds r2=IA64_PT_REGS_R8_OFFSET+16,sp    // r2 = &pt_regs.r8
-	;;
-	alloc r3=ar.pfs,0,0,0,0			// drop the syscall argument frame
-	st8 [r2]=r8                             // store return value in slot for r8
-	br.cond.sptk.many ia64_leave_kernel
-END(ia32_ret_from_syscall)
-
-	//
-	// Invoke a system call, but do some tracing before and after the call.
-	// We MUST preserve the current register frame throughout this routine
-	// because some system calls (such as ia64_execve) directly
-	// manipulate ar.pfs.
-	//
-	// Input:
-	//	r8 = syscall number
-	//	b6 = syscall entry point
-	//
-GLOBAL_ENTRY(ia32_trace_syscall)
-	PT_REGS_UNWIND_INFO(0)
-	mov r3=-38
-	adds r2=IA64_PT_REGS_R8_OFFSET+16,sp
-	;;
-	st8 [r2]=r3				// initialize return code to -ENOSYS
-	br.call.sptk.few rp=syscall_trace_enter	// give parent a chance to catch syscall args
-	cmp.lt p6,p0=r8,r0			// check tracehook
-	adds r2=IA64_PT_REGS_R8_OFFSET+16,sp	// r2 = &pt_regs.r8
-	;;
-(p6)	st8.spill [r2]=r8			// store return value in slot for r8
-(p6)	br.spnt.few .ret4
-.ret2:	// Need to reload arguments (they may be changed by the tracing process)
-	adds r2=IA64_PT_REGS_R1_OFFSET+16,sp	// r2 = &pt_regs.r1
-	adds r3=IA64_PT_REGS_R13_OFFSET+16,sp	// r3 = &pt_regs.r13
-	mov r15=IA32_NR_syscalls
-	;;
-	ld4 r8=[r2],IA64_PT_REGS_R9_OFFSET-IA64_PT_REGS_R1_OFFSET
-	movl r16=ia32_syscall_table
-	;;
-	ld4 r33=[r2],8				// r9 == ecx
-	ld4 r37=[r3],16				// r13 == ebp
-	cmp.ltu.unc p6,p7=r8,r15
-	;;
-	ld4 r34=[r2],8				// r10 == edx
-	ld4 r36=[r3],8				// r15 == edi
-(p6)	shladd r16=r8,3,r16	// force ni_syscall if not valid syscall number
-	;;
-	ld8 r16=[r16]
-	;;
-	ld4 r32=[r2],8				// r11 == ebx
-	mov b6=r16
-	ld4 r35=[r3],8				// r14 == esi
-	br.call.sptk.few rp=b6			// do the syscall
-.ia32_strace_check_retval:
-	cmp.lt p6,p0=r8,r0			// syscall failed?
-	adds r2=IA64_PT_REGS_R8_OFFSET+16,sp	// r2 = &pt_regs.r8
-	;;
-	st8.spill [r2]=r8			// store return value in slot for r8
-	br.call.sptk.few rp=syscall_trace_leave	// give parent a chance to catch return value
-.ret4:	alloc r2=ar.pfs,0,0,0,0			// drop the syscall argument frame
-	br.cond.sptk.many ia64_leave_kernel
-END(ia32_trace_syscall)
-
-GLOBAL_ENTRY(sys32_vfork)
-	alloc r16=ar.pfs,2,2,4,0;;
-	mov out0=IA64_CLONE_VFORK|IA64_CLONE_VM|SIGCHLD	// out0 = clone_flags
-	br.cond.sptk.few .fork1			// do the work
-END(sys32_vfork)
-
-GLOBAL_ENTRY(sys32_fork)
-	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
-	alloc r16=ar.pfs,2,2,4,0
-	mov out0=SIGCHLD			// out0 = clone_flags
-	;;
-.fork1:
-	mov loc0=rp
-	mov loc1=r16				// save ar.pfs across do_fork
-	DO_SAVE_SWITCH_STACK
-
-	.body
-
-	mov out1=0
-	mov out3=0
-	adds out2=IA64_SWITCH_STACK_SIZE+16,sp	// out2 = &regs
-	br.call.sptk.few rp=do_fork
-.ret5:	.restore sp
-	adds sp=IA64_SWITCH_STACK_SIZE,sp	// pop the switch stack
-	mov ar.pfs=loc1
-	mov rp=loc0
-	br.ret.sptk.many rp
-END(sys32_fork)
-
-	.rodata
-	.align 8
-	.globl ia32_syscall_table
-ia32_syscall_table:
-	data8 sys_ni_syscall	  /* 0	-  old "setup(" system call*/
-	data8 sys_exit
-	data8 sys32_fork
-	data8 sys_read
-	data8 sys_write
-	data8 compat_sys_open	  /* 5 */
-	data8 sys_close
-	data8 sys32_waitpid
-	data8 sys_creat
-	data8 sys_link
-	data8 sys_unlink	  /* 10 */
-	data8 ia32_execve
-	data8 sys_chdir
-	data8 compat_sys_time
-	data8 sys_mknod
-	data8 sys_chmod		  /* 15 */
-	data8 sys_lchown	/* 16-bit version */
-	data8 sys_ni_syscall	  /* old break syscall holder */
-	data8 sys_ni_syscall
-	data8 sys32_lseek
-	data8 sys_getpid	  /* 20 */
-	data8 compat_sys_mount
-	data8 sys_oldumount
-	data8 sys_setuid	/* 16-bit version */
-	data8 sys_getuid	/* 16-bit version */
-	data8 compat_sys_stime    /* 25 */
-	data8 compat_sys_ptrace
-	data8 sys32_alarm
-	data8 sys_ni_syscall
-	data8 sys_pause
-	data8 compat_sys_utime	  /* 30 */
-	data8 sys_ni_syscall	  /* old stty syscall holder */
-	data8 sys_ni_syscall	  /* old gtty syscall holder */
-	data8 sys_access
-	data8 sys_nice
-	data8 sys_ni_syscall	  /* 35 */	  /* old ftime syscall holder */
-	data8 sys_sync
-	data8 sys_kill
-	data8 sys_rename
-	data8 sys_mkdir
-	data8 sys_rmdir		  /* 40 */
-	data8 sys_dup
-	data8 sys_ia64_pipe
-	data8 compat_sys_times
-	data8 sys_ni_syscall	  /* old prof syscall holder */
-	data8 sys32_brk		  /* 45 */
-	data8 sys_setgid	/* 16-bit version */
-	data8 sys_getgid	/* 16-bit version */
-	data8 sys32_signal
-	data8 sys_geteuid	/* 16-bit version */
-	data8 sys_getegid	/* 16-bit version */	  /* 50 */
-	data8 sys_acct
-	data8 sys_umount	  /* recycled never used phys( */
-	data8 sys_ni_syscall	  /* old lock syscall holder */
-	data8 compat_sys_ioctl
-	data8 compat_sys_fcntl	  /* 55 */
-	data8 sys_ni_syscall	  /* old mpx syscall holder */
-	data8 sys_setpgid
-	data8 sys_ni_syscall	  /* old ulimit syscall holder */
-	data8 sys_ni_syscall
-	data8 sys_umask		  /* 60 */
-	data8 sys_chroot
-	data8 compat_sys_ustat
-	data8 sys_dup2
-	data8 sys_getppid
-	data8 sys_getpgrp	  /* 65 */
-	data8 sys_setsid
-	data8 sys32_sigaction
-	data8 sys_ni_syscall
-	data8 sys_ni_syscall
-	data8 sys_setreuid	/* 16-bit version */	  /* 70 */
-	data8 sys_setregid	/* 16-bit version */
-	data8 sys32_sigsuspend
-	data8 compat_sys_sigpending
-	data8 sys_sethostname
-	data8 compat_sys_setrlimit	  /* 75 */
-	data8 compat_sys_old_getrlimit
-	data8 compat_sys_getrusage
-	data8 compat_sys_gettimeofday
-	data8 compat_sys_settimeofday
-	data8 sys32_getgroups16	  /* 80 */
-	data8 sys32_setgroups16
-	data8 sys32_old_select
-	data8 sys_symlink
-	data8 sys_ni_syscall
-	data8 sys_readlink	  /* 85 */
-	data8 sys_uselib
-	data8 sys_swapon
-	data8 sys_reboot
-	data8 compat_sys_old_readdir
-	data8 sys32_mmap	  /* 90 */
-	data8 sys32_munmap
-	data8 sys_truncate
-	data8 sys_ftruncate
-	data8 sys_fchmod
-	data8 sys_fchown	/* 16-bit version */	  /* 95 */
-	data8 sys_getpriority
-	data8 sys_setpriority
-	data8 sys_ni_syscall	  /* old profil syscall holder */
-	data8 compat_sys_statfs
-	data8 compat_sys_fstatfs	  /* 100 */
-	data8 sys_ni_syscall	/* ioperm */
-	data8 compat_sys_socketcall
-	data8 sys_syslog
-	data8 compat_sys_setitimer
-	data8 compat_sys_getitimer	  /* 105 */
-	data8 compat_sys_newstat
-	data8 compat_sys_newlstat
-	data8 compat_sys_newfstat
-	data8 sys_ni_syscall
-	data8 sys_ni_syscall	/* iopl */	/* 110 */
-	data8 sys_vhangup
-	data8 sys_ni_syscall		/* used to be sys_idle */
-	data8 sys_ni_syscall
-	data8 compat_sys_wait4
-	data8 sys_swapoff	  /* 115 */
-	data8 compat_sys_sysinfo
-	data8 sys32_ipc
-	data8 sys_fsync
-	data8 sys32_sigreturn
-	data8 ia32_clone	  /* 120 */
-	data8 sys_setdomainname
-	data8 sys32_newuname
-	data8 sys32_modify_ldt
-	data8 compat_sys_adjtimex
-	data8 sys32_mprotect	  /* 125 */
-	data8 compat_sys_sigprocmask
-	data8 sys_ni_syscall	/* create_module */
-	data8 sys_ni_syscall	/* init_module */
-	data8 sys_ni_syscall	/* delete_module */
-	data8 sys_ni_syscall	/* get_kernel_syms */  /* 130 */
-	data8 sys32_quotactl
-	data8 sys_getpgid
-	data8 sys_fchdir
-	data8 sys_ni_syscall	/* sys_bdflush */
-	data8 sys_sysfs		/* 135 */
-	data8 sys32_personality
-	data8 sys_ni_syscall	  /* for afs_syscall */
-	data8 sys_setfsuid	/* 16-bit version */
-	data8 sys_setfsgid	/* 16-bit version */
-	data8 sys_llseek	  /* 140 */
-	data8 compat_sys_getdents
-	data8 compat_sys_select
-	data8 sys_flock
-	data8 sys32_msync
-	data8 compat_sys_readv	  /* 145 */
-	data8 compat_sys_writev
-	data8 sys_getsid
-	data8 sys_fdatasync
-	data8 compat_sys_sysctl
-	data8 sys_mlock		  /* 150 */
-	data8 sys_munlock
-	data8 sys_mlockall
-	data8 sys_munlockall
-	data8 sys_sched_setparam
-	data8 sys_sched_getparam  /* 155 */
-	data8 sys_sched_setscheduler
-	data8 sys_sched_getscheduler
-	data8 sys_sched_yield
-	data8 sys_sched_get_priority_max
-	data8 sys_sched_get_priority_min	 /* 160 */
-	data8 sys32_sched_rr_get_interval
-	data8 compat_sys_nanosleep
-	data8 sys32_mremap
-	data8 sys_setresuid	/* 16-bit version */
-	data8 sys32_getresuid16	/* 16-bit version */	  /* 165 */
-	data8 sys_ni_syscall	/* vm86 */
-	data8 sys_ni_syscall	/* sys_query_module */
-	data8 sys_poll
-	data8 sys_ni_syscall	/* nfsservctl */
-	data8 sys_setresgid	  /* 170 */
-	data8 sys32_getresgid16
-	data8 sys_prctl
-	data8 sys32_rt_sigreturn
-	data8 sys32_rt_sigaction
-	data8 sys32_rt_sigprocmask /* 175 */
-	data8 sys_rt_sigpending
-	data8 compat_sys_rt_sigtimedwait
-	data8 sys32_rt_sigqueueinfo
-	data8 compat_sys_rt_sigsuspend
-	data8 sys32_pread	  /* 180 */
-	data8 sys32_pwrite
-	data8 sys_chown	/* 16-bit version */
-	data8 sys_getcwd
-	data8 sys_capget
-	data8 sys_capset	  /* 185 */
-	data8 sys32_sigaltstack
-	data8 sys32_sendfile
-	data8 sys_ni_syscall		  /* streams1 */
-	data8 sys_ni_syscall		  /* streams2 */
-	data8 sys32_vfork	  /* 190 */
-	data8 compat_sys_getrlimit
-	data8 sys32_mmap2
-	data8 sys32_truncate64
-	data8 sys32_ftruncate64
-	data8 sys32_stat64	  /* 195 */
-	data8 sys32_lstat64
-	data8 sys32_fstat64
-	data8 sys_lchown
-	data8 sys_getuid
-	data8 sys_getgid	  /* 200 */
-	data8 sys_geteuid
-	data8 sys_getegid
-	data8 sys_setreuid
-	data8 sys_setregid
-	data8 sys_getgroups	  /* 205 */
-	data8 sys_setgroups
-	data8 sys_fchown
-	data8 sys_setresuid
-	data8 sys_getresuid
-	data8 sys_setresgid	  /* 210 */
-	data8 sys_getresgid
-	data8 sys_chown
-	data8 sys_setuid
-	data8 sys_setgid
-	data8 sys_setfsuid	  /* 215 */
-	data8 sys_setfsgid
-	data8 sys_pivot_root
-	data8 sys_mincore
-	data8 sys_madvise
-	data8 compat_sys_getdents64	  /* 220 */
-	data8 compat_sys_fcntl64
-	data8 sys_ni_syscall		/* reserved for TUX */
-	data8 sys_ni_syscall		/* reserved for Security */
-	data8 sys_gettid
-	data8 sys_readahead	  /* 225 */
- 	data8 sys_setxattr
- 	data8 sys_lsetxattr
- 	data8 sys_fsetxattr
- 	data8 sys_getxattr
- 	data8 sys_lgetxattr	/* 230 */
- 	data8 sys_fgetxattr
- 	data8 sys_listxattr
- 	data8 sys_llistxattr
- 	data8 sys_flistxattr
- 	data8 sys_removexattr	/* 235 */
- 	data8 sys_lremovexattr
- 	data8 sys_fremovexattr
-	data8 sys_tkill
- 	data8 sys_sendfile64
-	data8 compat_sys_futex	/* 240 */
-	data8 compat_sys_sched_setaffinity
-	data8 compat_sys_sched_getaffinity
-	data8 sys32_set_thread_area
-	data8 sys32_get_thread_area
- 	data8 compat_sys_io_setup	/* 245 */
- 	data8 sys_io_destroy
- 	data8 compat_sys_io_getevents
- 	data8 compat_sys_io_submit
- 	data8 sys_io_cancel
- 	data8 sys_fadvise64	/* 250 */
-	data8 sys_ni_syscall
-	data8 sys_exit_group
- 	data8 sys_lookup_dcookie
-	data8 sys_epoll_create
-	data8 sys32_epoll_ctl	/* 255 */
-	data8 sys32_epoll_wait
-	data8 sys_remap_file_pages
-	data8 sys_set_tid_address
- 	data8 compat_sys_timer_create
- 	data8 compat_sys_timer_settime	/* 260 */
- 	data8 compat_sys_timer_gettime
- 	data8 sys_timer_getoverrun
- 	data8 sys_timer_delete
- 	data8 compat_sys_clock_settime
- 	data8 compat_sys_clock_gettime /* 265 */
- 	data8 compat_sys_clock_getres
- 	data8 compat_sys_clock_nanosleep
-	data8 compat_sys_statfs64
-	data8 compat_sys_fstatfs64
- 	data8 sys_tgkill	/* 270 */
- 	data8 compat_sys_utimes
- 	data8 sys32_fadvise64_64
- 	data8 sys_ni_syscall
-  	data8 sys_ni_syscall
- 	data8 sys_ni_syscall	/* 275 */
-  	data8 sys_ni_syscall
-  	data8 compat_sys_mq_open
-  	data8 sys_mq_unlink
-  	data8 compat_sys_mq_timedsend
-  	data8 compat_sys_mq_timedreceive	/* 280 */
-  	data8 compat_sys_mq_notify
-  	data8 compat_sys_mq_getsetattr
-	data8 sys_ni_syscall		/* reserved for kexec */
-	data8 compat_sys_waitid
-
-	// guard against failures to increase IA32_NR_syscalls
-	.org ia32_syscall_table + 8*IA32_NR_syscalls

arch/ia64/ia32/ia32_ldt.c

@@ -1,146 +0,0 @@
-/*
- * Copyright (C) 2001, 2004 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * Adapted from arch/i386/kernel/ldt.c
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/vmalloc.h>
-
-#include <asm/uaccess.h>
-
-#include "ia32priv.h"
-
-/*
- * read_ldt() is not really atomic - this is not a problem since synchronization of reads
- * and writes done to the LDT has to be assured by user-space anyway. Writes are atomic,
- * to protect the security checks done on new descriptors.
- */
-static int
-read_ldt (void __user *ptr, unsigned long bytecount)
-{
-	unsigned long bytes_left, n;
-	char __user *src, *dst;
-	char buf[256];	/* temporary buffer (don't overflow kernel stack!) */
-
-	if (bytecount > IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE)
-		bytecount = IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE;
-
-	bytes_left = bytecount;
-
-	src = (void __user *) IA32_LDT_OFFSET;
-	dst = ptr;
-
-	while (bytes_left) {
-		n = sizeof(buf);
-		if (n > bytes_left)
-			n = bytes_left;
-
-		/*
-		 * We know we're reading valid memory, but we still must guard against
-		 * running out of memory.
-		 */
-		if (__copy_from_user(buf, src, n))
-			return -EFAULT;
-
-		if (copy_to_user(dst, buf, n))
-			return -EFAULT;
-
-		src += n;
-		dst += n;
-		bytes_left -= n;
-	}
-	return bytecount;
-}
-
-static int
-read_default_ldt (void __user * ptr, unsigned long bytecount)
-{
-	unsigned long size;
-	int err;
-
-	/* XXX fix me: should return equivalent of default_ldt[0] */
-	err = 0;
-	size = 8;
-	if (size > bytecount)
-		size = bytecount;
-
-	err = size;
-	if (clear_user(ptr, size))
-		err = -EFAULT;
-
-	return err;
-}
-
-static int
-write_ldt (void __user * ptr, unsigned long bytecount, int oldmode)
-{
-	struct ia32_user_desc ldt_info;
-	__u64 entry;
-	int ret;
-
-	if (bytecount != sizeof(ldt_info))
-		return -EINVAL;
-	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
-		return -EFAULT;
-
-	if (ldt_info.entry_number >= IA32_LDT_ENTRIES)
-		return -EINVAL;
-	if (ldt_info.contents == 3) {
-		if (oldmode)
-			return -EINVAL;
-		if (ldt_info.seg_not_present == 0)
-			return -EINVAL;
-	}
-
-	if (ldt_info.base_addr == 0 && ldt_info.limit == 0
-	    && (oldmode || (ldt_info.contents == 0 && ldt_info.read_exec_only == 1
-			    && ldt_info.seg_32bit == 0 && ldt_info.limit_in_pages == 0
-			    && ldt_info.seg_not_present == 1 && ldt_info.useable == 0)))
-		/* allow LDTs to be cleared by the user */
-		entry = 0;
-	else
-		/* we must set the "Accessed" bit as IVE doesn't emulate it */
-		entry = IA32_SEG_DESCRIPTOR(ldt_info.base_addr, ldt_info.limit,
-					    (((ldt_info.read_exec_only ^ 1) << 1)
-					     | (ldt_info.contents << 2)) | 1,
-					    1, 3, ldt_info.seg_not_present ^ 1,
-					    (oldmode ? 0 : ldt_info.useable),
-					    ldt_info.seg_32bit,
-					    ldt_info.limit_in_pages);
-	/*
-	 * Install the new entry.  We know we're accessing valid (mapped) user-level
-	 * memory, but we still need to guard against out-of-memory, hence we must use
-	 * put_user().
-	 */
-	ret = __put_user(entry, (__u64 __user *) IA32_LDT_OFFSET + ldt_info.entry_number);
-	ia32_load_segment_descriptors(current);
-	return ret;
-}
-
-asmlinkage int
-sys32_modify_ldt (int func, unsigned int ptr, unsigned int bytecount)
-{
-	int ret = -ENOSYS;
-
-	switch (func) {
-	      case 0:
-		ret = read_ldt(compat_ptr(ptr), bytecount);
-		break;
-	      case 1:
-		ret = write_ldt(compat_ptr(ptr), bytecount, 1);
-		break;
-	      case 2:
-		ret = read_default_ldt(compat_ptr(ptr), bytecount);
-		break;
-	      case 0x11:
-		ret = write_ldt(compat_ptr(ptr), bytecount, 0);
-		break;
-	}
-	return ret;
-}

arch/ia64/ia32/ia32_signal.c

@@ -1,1010 +0,0 @@
-/*
- * IA32 Architecture-specific signal handling support.
- *
- * Copyright (C) 1999, 2001-2002, 2005 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2000 VA Linux Co
- * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
- *
- * Derived from i386 and Alpha versions.
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/personality.h>
-#include <linux/ptrace.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/syscalls.h>
-#include <linux/unistd.h>
-#include <linux/wait.h>
-#include <linux/compat.h>
-
-#include <asm/intrinsics.h>
-#include <asm/uaccess.h>
-#include <asm/rse.h>
-#include <asm/sigcontext.h>
-
-#include "ia32priv.h"
-
-#include "../kernel/sigframe.h"
-
-#define A(__x)		((unsigned long)(__x))
-
-#define DEBUG_SIG	0
-#define _BLOCKABLE	(~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-#define __IA32_NR_sigreturn            119
-#define __IA32_NR_rt_sigreturn         173
-
-struct sigframe_ia32
-{
-       int pretcode;
-       int sig;
-       struct sigcontext_ia32 sc;
-       struct _fpstate_ia32 fpstate;
-       unsigned int extramask[_COMPAT_NSIG_WORDS-1];
-       char retcode[8];
-};
-
-struct rt_sigframe_ia32
-{
-       int pretcode;
-       int sig;
-       int pinfo;
-       int puc;
-       compat_siginfo_t info;
-       struct ucontext_ia32 uc;
-       struct _fpstate_ia32 fpstate;
-       char retcode[8];
-};
-
-int
-copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
-{
-	unsigned long tmp;
-	int err;
-
-	if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
-		return -EFAULT;
-
-	err = __get_user(to->si_signo, &from->si_signo);
-	err |= __get_user(to->si_errno, &from->si_errno);
-	err |= __get_user(to->si_code, &from->si_code);
-
-	if (to->si_code < 0)
-		err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
-	else {
-		switch (to->si_code >> 16) {
-		      case __SI_CHLD >> 16:
-			err |= __get_user(to->si_utime, &from->si_utime);
-			err |= __get_user(to->si_stime, &from->si_stime);
-			err |= __get_user(to->si_status, &from->si_status);
-		      default:
-			err |= __get_user(to->si_pid, &from->si_pid);
-			err |= __get_user(to->si_uid, &from->si_uid);
-			break;
-		      case __SI_FAULT >> 16:
-			err |= __get_user(tmp, &from->si_addr);
-			to->si_addr = (void __user *) tmp;
-			break;
-		      case __SI_POLL >> 16:
-			err |= __get_user(to->si_band, &from->si_band);
-			err |= __get_user(to->si_fd, &from->si_fd);
-			break;
-		      case __SI_RT >> 16: /* This is not generated by the kernel as of now.  */
-		      case __SI_MESGQ >> 16:
-			err |= __get_user(to->si_pid, &from->si_pid);
-			err |= __get_user(to->si_uid, &from->si_uid);
-			err |= __get_user(to->si_int, &from->si_int);
-			break;
-		}
-	}
-	return err;
-}
-
-int
-copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
-{
-	unsigned int addr;
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
-		return -EFAULT;
-
-	/* If you change siginfo_t structure, please be sure
-	   this code is fixed accordingly.
-	   It should never copy any pad contained in the structure
-	   to avoid security leaks, but must copy the generic
-	   3 ints plus the relevant union member.
-	   This routine must convert siginfo from 64bit to 32bit as well
-	   at the same time.  */
-	err = __put_user(from->si_signo, &to->si_signo);
-	err |= __put_user(from->si_errno, &to->si_errno);
-	err |= __put_user((short)from->si_code, &to->si_code);
-	if (from->si_code < 0)
-		err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
-	else {
-		switch (from->si_code >> 16) {
-		case __SI_CHLD >> 16:
-			err |= __put_user(from->si_utime, &to->si_utime);
-			err |= __put_user(from->si_stime, &to->si_stime);
-			err |= __put_user(from->si_status, &to->si_status);
-		default:
-			err |= __put_user(from->si_pid, &to->si_pid);
-			err |= __put_user(from->si_uid, &to->si_uid);
-			break;
-		case __SI_FAULT >> 16:
-			/* avoid type-checking warnings by copying _pad[0] in lieu of si_addr... */
-			err |= __put_user(from->_sifields._pad[0], &to->si_addr);
-			break;
-		case __SI_POLL >> 16:
-			err |= __put_user(from->si_band, &to->si_band);
-			err |= __put_user(from->si_fd, &to->si_fd);
-			break;
-		case __SI_TIMER >> 16:
-			err |= __put_user(from->si_tid, &to->si_tid);
-			err |= __put_user(from->si_overrun, &to->si_overrun);
-			addr = (unsigned long) from->si_ptr;
-			err |= __put_user(addr, &to->si_ptr);
-			break;
-		case __SI_RT >> 16:	/* Not generated by the kernel as of now.  */
-		case __SI_MESGQ >> 16:
-			err |= __put_user(from->si_uid, &to->si_uid);
-			err |= __put_user(from->si_pid, &to->si_pid);
-			addr = (unsigned long) from->si_ptr;
-			err |= __put_user(addr, &to->si_ptr);
-			break;
-		}
-	}
-	return err;
-}
-
-
-/*
- *  SAVE and RESTORE of ia32 fpstate info, from ia64 current state
- *  Used in exception handler to pass the fpstate to the user, and restore
- *  the fpstate while returning from the exception handler.
- *
- *    fpstate info and their mapping to IA64 regs:
- *    fpstate    REG(BITS)      Attribute    Comments
- *    cw         ar.fcr(0:12)                with bits 7 and 6 not used
- *    sw         ar.fsr(0:15)
- *    tag        ar.fsr(16:31)               with odd numbered bits not used
- *                                           (read returns 0, writes ignored)
- *    ipoff      ar.fir(0:31)
- *    cssel      ar.fir(32:47)
- *    dataoff    ar.fdr(0:31)
- *    datasel    ar.fdr(32:47)
- *
- *    _st[(0+TOS)%8]   f8
- *    _st[(1+TOS)%8]   f9
- *    _st[(2+TOS)%8]   f10
- *    _st[(3+TOS)%8]   f11                   (f8..f11 from ptregs)
- *      : :            :                     (f12..f15 from live reg)
- *      : :            :
- *    _st[(7+TOS)%8]   f15                   TOS=sw.top(bits11:13)
- *
- *    status     Same as sw     RO
- *    magic      0                           as X86_FXSR_MAGIC in ia32
- *    mxcsr      Bits(7:15)=ar.fcr(39:47)
- *               Bits(0:5) =ar.fsr(32:37)    with bit 6 reserved
- *    _xmm[0..7] f16..f31                    (live registers)
- *                                           with _xmm[0]
- *                                             Bit(64:127)=f17(0:63)
- *                                             Bit(0:63)=f16(0:63)
- *    All other fields unused...
- */
-
-static int
-save_ia32_fpstate_live (struct _fpstate_ia32 __user *save)
-{
-	struct task_struct *tsk = current;
-	struct pt_regs *ptp;
-	struct _fpreg_ia32 *fpregp;
-	char buf[32];
-	unsigned long fsr, fcr, fir, fdr;
-	unsigned long new_fsr;
-	unsigned long num128[2];
-	unsigned long mxcsr=0;
-	int fp_tos, fr8_st_map;
-
-	if (!access_ok(VERIFY_WRITE, save, sizeof(*save)))
-		return -EFAULT;
-
-	/* Read in fsr, fcr, fir, fdr and copy onto fpstate */
-	fsr = ia64_getreg(_IA64_REG_AR_FSR);
-	fcr = ia64_getreg(_IA64_REG_AR_FCR);
-	fir = ia64_getreg(_IA64_REG_AR_FIR);
-	fdr = ia64_getreg(_IA64_REG_AR_FDR);
-
-	/*
-	 * We need to clear the exception state before calling the signal handler. Clear
-	 * the bits 15, bits 0-7 in fp status word. Similar to the functionality of fnclex
-	 * instruction.
-	 */
-	new_fsr = fsr & ~0x80ff;
-	ia64_setreg(_IA64_REG_AR_FSR, new_fsr);
-
-	__put_user(fcr & 0xffff, &save->cw);
-	__put_user(fsr & 0xffff, &save->sw);
-	__put_user((fsr>>16) & 0xffff, &save->tag);
-	__put_user(fir, &save->ipoff);
-	__put_user((fir>>32) & 0xffff, &save->cssel);
-	__put_user(fdr, &save->dataoff);
-	__put_user((fdr>>32) & 0xffff, &save->datasel);
-	__put_user(fsr & 0xffff, &save->status);
-
-	mxcsr = ((fcr>>32) & 0xff80) | ((fsr>>32) & 0x3f);
-	__put_user(mxcsr & 0xffff, &save->mxcsr);
-	__put_user( 0, &save->magic); //#define X86_FXSR_MAGIC   0x0000
-
-	/*
-	 * save f8..f11  from pt_regs
-	 * save f12..f15 from live register set
-	 */
-	/*
-	 *  Find the location where f8 has to go in fp reg stack.  This depends on
-	 *  TOP(11:13) field of sw. Other f reg continue sequentially from where f8 maps
-	 *  to.
-	 */
-	fp_tos = (fsr>>11)&0x7;
-	fr8_st_map = (8-fp_tos)&0x7;
-	ptp = task_pt_regs(tsk);
-	fpregp = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15);
-	ia64f2ia32f(fpregp, &ptp->f8);
-	copy_to_user(&save->_st[(0+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64f2ia32f(fpregp, &ptp->f9);
-	copy_to_user(&save->_st[(1+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64f2ia32f(fpregp, &ptp->f10);
-	copy_to_user(&save->_st[(2+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64f2ia32f(fpregp, &ptp->f11);
-	copy_to_user(&save->_st[(3+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-
-	ia64_stfe(fpregp, 12);
-	copy_to_user(&save->_st[(4+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64_stfe(fpregp, 13);
-	copy_to_user(&save->_st[(5+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64_stfe(fpregp, 14);
-	copy_to_user(&save->_st[(6+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-	ia64_stfe(fpregp, 15);
-	copy_to_user(&save->_st[(7+fr8_st_map)&0x7], fpregp, sizeof(struct _fpreg_ia32));
-
-	ia64_stf8(&num128[0], 16);
-	ia64_stf8(&num128[1], 17);
-	copy_to_user(&save->_xmm[0], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 18);
-	ia64_stf8(&num128[1], 19);
-	copy_to_user(&save->_xmm[1], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 20);
-	ia64_stf8(&num128[1], 21);
-	copy_to_user(&save->_xmm[2], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 22);
-	ia64_stf8(&num128[1], 23);
-	copy_to_user(&save->_xmm[3], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 24);
-	ia64_stf8(&num128[1], 25);
-	copy_to_user(&save->_xmm[4], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 26);
-	ia64_stf8(&num128[1], 27);
-	copy_to_user(&save->_xmm[5], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 28);
-	ia64_stf8(&num128[1], 29);
-	copy_to_user(&save->_xmm[6], num128, sizeof(struct _xmmreg_ia32));
-
-	ia64_stf8(&num128[0], 30);
-	ia64_stf8(&num128[1], 31);
-	copy_to_user(&save->_xmm[7], num128, sizeof(struct _xmmreg_ia32));
-	return 0;
-}
-
-static int
-restore_ia32_fpstate_live (struct _fpstate_ia32 __user *save)
-{
-	struct task_struct *tsk = current;
-	struct pt_regs *ptp;
-	unsigned int lo, hi;
-	unsigned long num128[2];
-	unsigned long num64, mxcsr;
-	struct _fpreg_ia32 *fpregp;
-	char buf[32];
-	unsigned long fsr, fcr, fir, fdr;
-	int fp_tos, fr8_st_map;
-
-	if (!access_ok(VERIFY_READ, save, sizeof(*save)))
-		return(-EFAULT);
-
-	/*
-	 * Updating fsr, fcr, fir, fdr.
-	 * Just a bit more complicated than save.
-	 * - Need to make sure that we don't write any value other than the
-	 *   specific fpstate info
-	 * - Need to make sure that the untouched part of frs, fdr, fir, fcr
-	 *   should remain same while writing.
-	 * So, we do a read, change specific fields and write.
-	 */
-	fsr = ia64_getreg(_IA64_REG_AR_FSR);
-	fcr = ia64_getreg(_IA64_REG_AR_FCR);
-	fir = ia64_getreg(_IA64_REG_AR_FIR);
-	fdr = ia64_getreg(_IA64_REG_AR_FDR);
-
-	__get_user(mxcsr, (unsigned int __user *)&save->mxcsr);
-	/* setting bits 0..5 8..12 with cw and 39..47 from mxcsr */
-	__get_user(lo, (unsigned int __user *)&save->cw);
-	num64 = mxcsr & 0xff10;
-	num64 = (num64 << 32) | (lo & 0x1f3f);
-	fcr = (fcr & (~0xff1000001f3fUL)) | num64;
-
-	/* setting bits 0..31 with sw and tag and 32..37 from mxcsr */
-	__get_user(lo, (unsigned int __user *)&save->sw);
-	/* set bits 15,7 (fsw.b, fsw.es) to reflect the current error status */
-	if ( !(lo & 0x7f) )
-		lo &= (~0x8080);
-	__get_user(hi, (unsigned int __user *)&save->tag);
-	num64 = mxcsr & 0x3f;
-	num64 = (num64 << 16) | (hi & 0xffff);
-	num64 = (num64 << 16) | (lo & 0xffff);
-	fsr = (fsr & (~0x3fffffffffUL)) | num64;
-
-	/* setting bits 0..47 with cssel and ipoff */
-	__get_user(lo, (unsigned int __user *)&save->ipoff);
-	__get_user(hi, (unsigned int __user *)&save->cssel);
-	num64 = hi & 0xffff;
-	num64 = (num64 << 32) | lo;
-	fir = (fir & (~0xffffffffffffUL)) | num64;
-
-	/* setting bits 0..47 with datasel and dataoff */
-	__get_user(lo, (unsigned int __user *)&save->dataoff);
-	__get_user(hi, (unsigned int __user *)&save->datasel);
-	num64 = hi & 0xffff;
-	num64 = (num64 << 32) | lo;
-	fdr = (fdr & (~0xffffffffffffUL)) | num64;
-
-	ia64_setreg(_IA64_REG_AR_FSR, fsr);
-	ia64_setreg(_IA64_REG_AR_FCR, fcr);
-	ia64_setreg(_IA64_REG_AR_FIR, fir);
-	ia64_setreg(_IA64_REG_AR_FDR, fdr);
-
-	/*
-	 * restore f8..f11 onto pt_regs
-	 * restore f12..f15 onto live registers
-	 */
-	/*
-	 *  Find the location where f8 has to go in fp reg stack.  This depends on
-	 *  TOP(11:13) field of sw. Other f reg continue sequentially from where f8 maps
-	 *  to.
-	 */
-	fp_tos = (fsr>>11)&0x7;
-	fr8_st_map = (8-fp_tos)&0x7;
-	fpregp = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15);
-
-	ptp = task_pt_regs(tsk);
-	copy_from_user(fpregp, &save->_st[(0+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia32f2ia64f(&ptp->f8, fpregp);
-	copy_from_user(fpregp, &save->_st[(1+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia32f2ia64f(&ptp->f9, fpregp);
-	copy_from_user(fpregp, &save->_st[(2+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia32f2ia64f(&ptp->f10, fpregp);
-	copy_from_user(fpregp, &save->_st[(3+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia32f2ia64f(&ptp->f11, fpregp);
-
-	copy_from_user(fpregp, &save->_st[(4+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia64_ldfe(12, fpregp);
-	copy_from_user(fpregp, &save->_st[(5+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia64_ldfe(13, fpregp);
-	copy_from_user(fpregp, &save->_st[(6+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia64_ldfe(14, fpregp);
-	copy_from_user(fpregp, &save->_st[(7+fr8_st_map)&0x7], sizeof(struct _fpreg_ia32));
-	ia64_ldfe(15, fpregp);
-
-	copy_from_user(num128, &save->_xmm[0], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(16, &num128[0]);
-	ia64_ldf8(17, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[1], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(18, &num128[0]);
-	ia64_ldf8(19, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[2], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(20, &num128[0]);
-	ia64_ldf8(21, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[3], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(22, &num128[0]);
-	ia64_ldf8(23, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[4], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(24, &num128[0]);
-	ia64_ldf8(25, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[5], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(26, &num128[0]);
-	ia64_ldf8(27, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[6], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(28, &num128[0]);
-	ia64_ldf8(29, &num128[1]);
-
-	copy_from_user(num128, &save->_xmm[7], sizeof(struct _xmmreg_ia32));
-	ia64_ldf8(30, &num128[0]);
-	ia64_ldf8(31, &num128[1]);
-	return 0;
-}
-
-static inline void
-sigact_set_handler (struct k_sigaction *sa, unsigned int handler, unsigned int restorer)
-{
-	if (handler + 1 <= 2)
-		/* SIG_DFL, SIG_IGN, or SIG_ERR: must sign-extend to 64-bits */
-		sa->sa.sa_handler = (__sighandler_t) A((int) handler);
-	else
-		sa->sa.sa_handler = (__sighandler_t) (((unsigned long) restorer << 32) | handler);
-}
-
-asmlinkage long
-sys32_sigsuspend (int history0, int history1, old_sigset_t mask)
-{
-	mask &= _BLOCKABLE;
-	spin_lock_irq(&current->sighand->siglock);
-	current->saved_sigmask = current->blocked;
-	siginitset(&current->blocked, mask);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-	set_restore_sigmask();
-	return -ERESTARTNOHAND;
-}
-
-asmlinkage long
-sys32_signal (int sig, unsigned int handler)
-{
-	struct k_sigaction new_sa, old_sa;
-	int ret;
-
-	sigact_set_handler(&new_sa, handler, 0);
-	new_sa.sa.sa_flags = SA_ONESHOT | SA_NOMASK;
-	sigemptyset(&new_sa.sa.sa_mask);
-
-	ret = do_sigaction(sig, &new_sa, &old_sa);
-
-	return ret ? ret : IA32_SA_HANDLER(&old_sa);
-}
-
-asmlinkage long
-sys32_rt_sigaction (int sig, struct sigaction32 __user *act,
-		    struct sigaction32 __user *oact, unsigned int sigsetsize)
-{
-	struct k_sigaction new_ka, old_ka;
-	unsigned int handler, restorer;
-	int ret;
-
-	/* XXX: Don't preclude handling different sized sigset_t's.  */
-	if (sigsetsize != sizeof(compat_sigset_t))
-		return -EINVAL;
-
-	if (act) {
-		ret = get_user(handler, &act->sa_handler);
-		ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		ret |= get_user(restorer, &act->sa_restorer);
-		ret |= copy_from_user(&new_ka.sa.sa_mask, &act->sa_mask, sizeof(compat_sigset_t));
-		if (ret)
-			return -EFAULT;
-
-		sigact_set_handler(&new_ka, handler, restorer);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		ret = put_user(IA32_SA_HANDLER(&old_ka), &oact->sa_handler);
-		ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		ret |= put_user(IA32_SA_RESTORER(&old_ka), &oact->sa_restorer);
-		ret |= copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask, sizeof(compat_sigset_t));
-	}
-	return ret;
-}
-
-
-asmlinkage long
-sys32_rt_sigprocmask (int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
-		      unsigned int sigsetsize)
-{
-	mm_segment_t old_fs = get_fs();
-	sigset_t s;
-	long ret;
-
-	if (sigsetsize > sizeof(s))
-		return -EINVAL;
-
-	if (set) {
-		memset(&s, 0, sizeof(s));
-		if (copy_from_user(&s.sig, set, sigsetsize))
-			return -EFAULT;
-	}
-	set_fs(KERNEL_DS);
-	ret = sys_rt_sigprocmask(how,
-				 set ? (sigset_t __user *) &s : NULL,
-				 oset ? (sigset_t __user *) &s : NULL, sizeof(s));
-	set_fs(old_fs);
-	if (ret)
-		return ret;
-	if (oset) {
-		if (copy_to_user(oset, &s.sig, sigsetsize))
-			return -EFAULT;
-	}
-	return 0;
-}
-
-asmlinkage long
-sys32_rt_sigqueueinfo (int pid, int sig, compat_siginfo_t __user *uinfo)
-{
-	mm_segment_t old_fs = get_fs();
-	siginfo_t info;
-	int ret;
-
-	if (copy_siginfo_from_user32(&info, uinfo))
-		return -EFAULT;
-	set_fs(KERNEL_DS);
-	ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
-	set_fs(old_fs);
-	return ret;
-}
-
-asmlinkage long
-sys32_sigaction (int sig, struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact)
-{
-	struct k_sigaction new_ka, old_ka;
-	unsigned int handler, restorer;
-	int ret;
-
-	if (act) {
-		compat_old_sigset_t mask;
-
-		ret = get_user(handler, &act->sa_handler);
-		ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		ret |= get_user(restorer, &act->sa_restorer);
-		ret |= get_user(mask, &act->sa_mask);
-		if (ret)
-			return ret;
-
-		sigact_set_handler(&new_ka, handler, restorer);
-		siginitset(&new_ka.sa.sa_mask, mask);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		ret = put_user(IA32_SA_HANDLER(&old_ka), &oact->sa_handler);
-		ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		ret |= put_user(IA32_SA_RESTORER(&old_ka), &oact->sa_restorer);
-		ret |= put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-	}
-
-	return ret;
-}
-
-static int
-setup_sigcontext_ia32 (struct sigcontext_ia32 __user *sc, struct _fpstate_ia32 __user *fpstate,
-		       struct pt_regs *regs, unsigned long mask)
-{
-	int  err = 0;
-	unsigned long flag;
-
-	if (!access_ok(VERIFY_WRITE, sc, sizeof(*sc)))
-		return -EFAULT;
-
-	err |= __put_user((regs->r16 >> 32) & 0xffff, (unsigned int __user *)&sc->fs);
-	err |= __put_user((regs->r16 >> 48) & 0xffff, (unsigned int __user *)&sc->gs);
-	err |= __put_user((regs->r16 >> 16) & 0xffff, (unsigned int __user *)&sc->es);
-	err |= __put_user(regs->r16 & 0xffff, (unsigned int __user *)&sc->ds);
-	err |= __put_user(regs->r15, &sc->edi);
-	err |= __put_user(regs->r14, &sc->esi);
-	err |= __put_user(regs->r13, &sc->ebp);
-	err |= __put_user(regs->r12, &sc->esp);
-	err |= __put_user(regs->r11, &sc->ebx);
-	err |= __put_user(regs->r10, &sc->edx);
-	err |= __put_user(regs->r9, &sc->ecx);
-	err |= __put_user(regs->r8, &sc->eax);
-#if 0
-	err |= __put_user(current->tss.trap_no, &sc->trapno);
-	err |= __put_user(current->tss.error_code, &sc->err);
-#endif
-	err |= __put_user(regs->cr_iip, &sc->eip);
-	err |= __put_user(regs->r17 & 0xffff, (unsigned int __user *)&sc->cs);
-	/*
-	 *  `eflags' is in an ar register for this context
-	 */
-	flag = ia64_getreg(_IA64_REG_AR_EFLAG);
-	err |= __put_user((unsigned int)flag, &sc->eflags);
-	err |= __put_user(regs->r12, &sc->esp_at_signal);
-	err |= __put_user((regs->r17 >> 16) & 0xffff, (unsigned int __user *)&sc->ss);
-
-	if ( save_ia32_fpstate_live(fpstate) < 0 )
-		err = -EFAULT;
-	else
-		err |= __put_user((u32)(u64)fpstate, &sc->fpstate);
-
-#if 0
-	tmp = save_i387(fpstate);
-	if (tmp < 0)
-		err = 1;
-	else
-		err |= __put_user(tmp ? fpstate : NULL, &sc->fpstate);
-
-	/* non-iBCS2 extensions.. */
-#endif
-	err |= __put_user(mask, &sc->oldmask);
-#if 0
-	err |= __put_user(current->tss.cr2, &sc->cr2);
-#endif
-	return err;
-}
-
-static int
-restore_sigcontext_ia32 (struct pt_regs *regs, struct sigcontext_ia32 __user *sc, int *peax)
-{
-	unsigned int err = 0;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	if (!access_ok(VERIFY_READ, sc, sizeof(*sc)))
-		return(-EFAULT);
-
-#define COPY(ia64x, ia32x)	err |= __get_user(regs->ia64x, &sc->ia32x)
-
-#define copyseg_gs(tmp)		(regs->r16 |= (unsigned long) (tmp) << 48)
-#define copyseg_fs(tmp)		(regs->r16 |= (unsigned long) (tmp) << 32)
-#define copyseg_cs(tmp)		(regs->r17 |= tmp)
-#define copyseg_ss(tmp)		(regs->r17 |= (unsigned long) (tmp) << 16)
-#define copyseg_es(tmp)		(regs->r16 |= (unsigned long) (tmp) << 16)
-#define copyseg_ds(tmp)		(regs->r16 |= tmp)
-
-#define COPY_SEG(seg)					\
-	{						\
-		unsigned short tmp;			\
-		err |= __get_user(tmp, &sc->seg);	\
-		copyseg_##seg(tmp);			\
-	}
-#define COPY_SEG_STRICT(seg)				\
-	{						\
-		unsigned short tmp;			\
-		err |= __get_user(tmp, &sc->seg);	\
-		copyseg_##seg(tmp|3);			\
-	}
-
-	/* To make COPY_SEGs easier, we zero r16, r17 */
-	regs->r16 = 0;
-	regs->r17 = 0;
-
-	COPY_SEG(gs);
-	COPY_SEG(fs);
-	COPY_SEG(es);
-	COPY_SEG(ds);
-	COPY(r15, edi);
-	COPY(r14, esi);
-	COPY(r13, ebp);
-	COPY(r12, esp);
-	COPY(r11, ebx);
-	COPY(r10, edx);
-	COPY(r9, ecx);
-	COPY(cr_iip, eip);
-	COPY_SEG_STRICT(cs);
-	COPY_SEG_STRICT(ss);
-	ia32_load_segment_descriptors(current);
-	{
-		unsigned int tmpflags;
-		unsigned long flag;
-
-		/*
-		 *  IA32 `eflags' is not part of `pt_regs', it's in an ar register which
-		 *  is part of the thread context.  Fortunately, we are executing in the
-		 *  IA32 process's context.
-		 */
-		err |= __get_user(tmpflags, &sc->eflags);
-		flag = ia64_getreg(_IA64_REG_AR_EFLAG);
-		flag &= ~0x40DD5;
-		flag |= (tmpflags & 0x40DD5);
-		ia64_setreg(_IA64_REG_AR_EFLAG, flag);
-
-		regs->r1 = -1;	/* disable syscall checks, r1 is orig_eax */
-	}
-
-	{
-		struct _fpstate_ia32 __user *buf = NULL;
-		u32    fpstate_ptr;
-		err |= get_user(fpstate_ptr, &(sc->fpstate));
-		buf = compat_ptr(fpstate_ptr);
-		if (buf) {
-			err |= restore_ia32_fpstate_live(buf);
-		}
-	}
-
-#if 0
-	{
-		struct _fpstate * buf;
-		err |= __get_user(buf, &sc->fpstate);
-		if (buf) {
-			if (!access_ok(VERIFY_READ, buf, sizeof(*buf)))
-				goto badframe;
-			err |= restore_i387(buf);
-		}
-	}
-#endif
-
-	err |= __get_user(*peax, &sc->eax);
-	return err;
-
-#if 0
-  badframe:
-	return 1;
-#endif
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *
-get_sigframe (struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
-{
-	unsigned long esp;
-
-	/* Default to using normal stack (truncate off sign-extension of bit 31: */
-	esp = (unsigned int) regs->r12;
-
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if (ka->sa.sa_flags & SA_ONSTACK) {
-		int onstack = sas_ss_flags(esp);
-
-		if (onstack == 0)
-			esp = current->sas_ss_sp + current->sas_ss_size;
-		else if (onstack == SS_ONSTACK) {
-			/*
-			 * If we are on the alternate signal stack and would
-			 * overflow it, don't. Return an always-bogus address
-			 * instead so we will die with SIGSEGV.
-			 */
-			if (!likely(on_sig_stack(esp - frame_size)))
-				return (void __user *) -1L;
-		}
-	}
-	/* Legacy stack switching not supported */
-
-	esp -= frame_size;
-	/* Align the stack pointer according to the i386 ABI,
-	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
-	esp = ((esp + 4) & -16ul) - 4;
-	return (void __user *) esp;
-}
-
-static int
-setup_frame_ia32 (int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs * regs)
-{
-	struct exec_domain *ed = current_thread_info()->exec_domain;
-	struct sigframe_ia32 __user *frame;
-	int err = 0;
-
-	frame = get_sigframe(ka, regs, sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	err |= __put_user((ed && ed->signal_invmap && sig < 32
-			   ? (int)(ed->signal_invmap[sig]) : sig), &frame->sig);
-
-	err |= setup_sigcontext_ia32(&frame->sc, &frame->fpstate, regs, set->sig[0]);
-
-	if (_COMPAT_NSIG_WORDS > 1)
-		err |= __copy_to_user(frame->extramask, (char *) &set->sig + 4,
-				      sizeof(frame->extramask));
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		unsigned int restorer = IA32_SA_RESTORER(ka);
-		err |= __put_user(restorer, &frame->pretcode);
-	} else {
-		/* Pointing to restorer in ia32 gate page */
-		err |= __put_user(IA32_GATE_OFFSET, &frame->pretcode);
-	}
-
-	/* This is popl %eax ; movl $,%eax ; int $0x80
-	 * and there for historical reasons only.
-	 * See arch/i386/kernel/signal.c
-	 */
-
-	err |= __put_user(0xb858, (short __user *)(frame->retcode+0));
-	err |= __put_user(__IA32_NR_sigreturn, (int __user *)(frame->retcode+2));
-	err |= __put_user(0x80cd, (short __user *)(frame->retcode+6));
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	regs->r12 = (unsigned long) frame;
-	regs->cr_iip = IA32_SA_HANDLER(ka);
-
-	set_fs(USER_DS);
-
-#if 0
-	regs->eflags &= ~TF_MASK;
-#endif
-
-#if 0
-	printk("SIG deliver (%s:%d): sig=%d sp=%p pc=%lx ra=%x\n",
-               current->comm, current->pid, sig, (void *) frame, regs->cr_iip, frame->pretcode);
-#endif
-
-	return 1;
-
-  give_sigsegv:
-	force_sigsegv(sig, current);
-	return 0;
-}
-
-static int
-setup_rt_frame_ia32 (int sig, struct k_sigaction *ka, siginfo_t *info,
-		     sigset_t *set, struct pt_regs * regs)
-{
-	struct exec_domain *ed = current_thread_info()->exec_domain;
-	compat_uptr_t pinfo, puc;
-	struct rt_sigframe_ia32 __user *frame;
-	int err = 0;
-
-	frame = get_sigframe(ka, regs, sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	err |= __put_user((ed && ed->signal_invmap
-			   && sig < 32 ? ed->signal_invmap[sig] : sig), &frame->sig);
-
-	pinfo = (long __user) &frame->info;
-	puc = (long __user) &frame->uc;
-	err |= __put_user(pinfo, &frame->pinfo);
-	err |= __put_user(puc, &frame->puc);
-	err |= copy_siginfo_to_user32(&frame->info, info);
-
-	/* Create the ucontext.  */
-	err |= __put_user(0, &frame->uc.uc_flags);
-	err |= __put_user(0, &frame->uc.uc_link);
-	err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
-	err |= __put_user(sas_ss_flags(regs->r12), &frame->uc.uc_stack.ss_flags);
-	err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
-	err |= setup_sigcontext_ia32(&frame->uc.uc_mcontext, &frame->fpstate, regs, set->sig[0]);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up to return from userspace.  If provided, use a stub
-	   already in userspace.  */
-	if (ka->sa.sa_flags & SA_RESTORER) {
-		unsigned int restorer = IA32_SA_RESTORER(ka);
-		err |= __put_user(restorer, &frame->pretcode);
-	} else {
-		/* Pointing to rt_restorer in ia32 gate page */
-		err |= __put_user(IA32_GATE_OFFSET + 8, &frame->pretcode);
-	}
-
-	/* This is movl $,%eax ; int $0x80
-	 * and there for historical reasons only.
-	 * See arch/i386/kernel/signal.c
-	 */
-
-	err |= __put_user(0xb8, (char __user *)(frame->retcode+0));
-	err |= __put_user(__IA32_NR_rt_sigreturn, (int __user *)(frame->retcode+1));
-	err |= __put_user(0x80cd, (short __user *)(frame->retcode+5));
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	regs->r12 = (unsigned long) frame;
-	regs->cr_iip = IA32_SA_HANDLER(ka);
-
-	set_fs(USER_DS);
-
-#if 0
-	regs->eflags &= ~TF_MASK;
-#endif
-
-#if 0
-	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%x\n",
-               current->comm, current->pid, (void *) frame, regs->cr_iip, frame->pretcode);
-#endif
-
-	return 1;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return 0;
-}
-
-int
-ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info,
-		   sigset_t *set, struct pt_regs *regs)
-{
-       /* Set up the stack frame */
-       if (ka->sa.sa_flags & SA_SIGINFO)
-               return setup_rt_frame_ia32(sig, ka, info, set, regs);
-       else
-               return setup_frame_ia32(sig, ka, set, regs);
-}
-
-asmlinkage long
-sys32_sigreturn (int arg0, int arg1, int arg2, int arg3, int arg4, int arg5,
-		 int arg6, int arg7, struct pt_regs regs)
-{
-	unsigned long esp = (unsigned int) regs.r12;
-	struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(esp - 8);
-	sigset_t set;
-	int eax;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-
-	if (__get_user(set.sig[0], &frame->sc.oldmask)
-	    || (_COMPAT_NSIG_WORDS > 1 && __copy_from_user((char *) &set.sig + 4, &frame->extramask,
-							 sizeof(frame->extramask))))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext_ia32(&regs, &frame->sc, &eax))
-		goto badframe;
-	return eax;
-
-  badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-asmlinkage long
-sys32_rt_sigreturn (int arg0, int arg1, int arg2, int arg3, int arg4,
-		    int arg5, int arg6, int arg7, struct pt_regs regs)
-{
-	unsigned long esp = (unsigned int) regs.r12;
-	struct rt_sigframe_ia32 __user *frame = (struct rt_sigframe_ia32 __user *)(esp - 4);
-	sigset_t set;
-	int eax;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked =  set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	if (restore_sigcontext_ia32(&regs, &frame->uc.uc_mcontext, &eax))
-		goto badframe;
-
-	/* It is more difficult to avoid calling this function than to
-	   call it and ignore errors.  */
-	do_sigaltstack((stack_t __user *) &frame->uc.uc_stack, NULL, esp);
-
-	return eax;
-
-  badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}

arch/ia64/ia32/ia32_support.c

@@ -1,253 +0,0 @@
-/*
- * IA32 helper functions
- *
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 2001-2002 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	added csd/ssd/tssd for ia32 thread context
- * 02/19/01	D. Mosberger	dropped tssd; it's not needed
- * 09/14/01	D. Mosberger	fixed memory management for gdt/tss page
- * 09/29/01	D. Mosberger	added ia32_load_segment_descriptors()
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-
-#include <asm/intrinsics.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-#include "ia32priv.h"
-
-extern int die_if_kernel (char *str, struct pt_regs *regs, long err);
-
-struct page *ia32_shared_page[NR_CPUS];
-unsigned long *ia32_boot_gdt;
-unsigned long *cpu_gdt_table[NR_CPUS];
-struct page *ia32_gate_page;
-
-static unsigned long
-load_desc (u16 selector)
-{
-	unsigned long *table, limit, index;
-
-	if (!selector)
-		return 0;
-	if (selector & IA32_SEGSEL_TI) {
-		table = (unsigned long *) IA32_LDT_OFFSET;
-		limit = IA32_LDT_ENTRIES;
-	} else {
-		table = cpu_gdt_table[smp_processor_id()];
-		limit = IA32_PAGE_SIZE / sizeof(ia32_boot_gdt[0]);
-	}
-	index = selector >> IA32_SEGSEL_INDEX_SHIFT;
-	if (index >= limit)
-		return 0;
-	return IA32_SEG_UNSCRAMBLE(table[index]);
-}
-
-void
-ia32_load_segment_descriptors (struct task_struct *task)
-{
-	struct pt_regs *regs = task_pt_regs(task);
-
-	/* Setup the segment descriptors */
-	regs->r24 = load_desc(regs->r16 >> 16);		/* ESD */
-	regs->r27 = load_desc(regs->r16 >>  0);		/* DSD */
-	regs->r28 = load_desc(regs->r16 >> 32);		/* FSD */
-	regs->r29 = load_desc(regs->r16 >> 48);		/* GSD */
-	regs->ar_csd = load_desc(regs->r17 >>  0);	/* CSD */
-	regs->ar_ssd = load_desc(regs->r17 >> 16);	/* SSD */
-}
-
-int
-ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs)
-{
-	struct desc_struct *desc;
-	struct ia32_user_desc info;
-	int idx;
-
-	if (copy_from_user(&info, (void __user *)(childregs->r14 & 0xffffffff), sizeof(info)))
-		return -EFAULT;
-	if (LDT_empty(&info))
-		return -EINVAL;
-
-	idx = info.entry_number;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = child->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-	desc->a = LDT_entry_a(&info);
-	desc->b = LDT_entry_b(&info);
-
-	/* XXX: can this be done in a cleaner way ? */
-	load_TLS(&child->thread, smp_processor_id());
-	ia32_load_segment_descriptors(child);
-	load_TLS(&current->thread, smp_processor_id());
-
-	return 0;
-}
-
-void
-ia32_save_state (struct task_struct *t)
-{
-	t->thread.eflag = ia64_getreg(_IA64_REG_AR_EFLAG);
-	t->thread.fsr   = ia64_getreg(_IA64_REG_AR_FSR);
-	t->thread.fcr   = ia64_getreg(_IA64_REG_AR_FCR);
-	t->thread.fir   = ia64_getreg(_IA64_REG_AR_FIR);
-	t->thread.fdr   = ia64_getreg(_IA64_REG_AR_FDR);
-	ia64_set_kr(IA64_KR_IO_BASE, t->thread.old_iob);
-	ia64_set_kr(IA64_KR_TSSD, t->thread.old_k1);
-}
-
-void
-ia32_load_state (struct task_struct *t)
-{
-	unsigned long eflag, fsr, fcr, fir, fdr, tssd;
-	struct pt_regs *regs = task_pt_regs(t);
-
-	eflag = t->thread.eflag;
-	fsr = t->thread.fsr;
-	fcr = t->thread.fcr;
-	fir = t->thread.fir;
-	fdr = t->thread.fdr;
-	tssd = load_desc(_TSS);					/* TSSD */
-
-	ia64_setreg(_IA64_REG_AR_EFLAG, eflag);
-	ia64_setreg(_IA64_REG_AR_FSR, fsr);
-	ia64_setreg(_IA64_REG_AR_FCR, fcr);
-	ia64_setreg(_IA64_REG_AR_FIR, fir);
-	ia64_setreg(_IA64_REG_AR_FDR, fdr);
-	current->thread.old_iob = ia64_get_kr(IA64_KR_IO_BASE);
-	current->thread.old_k1 = ia64_get_kr(IA64_KR_TSSD);
-	ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE);
-	ia64_set_kr(IA64_KR_TSSD, tssd);
-
-	regs->r17 = (_TSS << 48) | (_LDT << 32) | (__u32) regs->r17;
-	regs->r30 = load_desc(_LDT);				/* LDTD */
-	load_TLS(&t->thread, smp_processor_id());
-}
-
-/*
- * Setup IA32 GDT and TSS
- */
-void
-ia32_gdt_init (void)
-{
-	int cpu = smp_processor_id();
-
-	ia32_shared_page[cpu] = alloc_page(GFP_KERNEL);
-	if (!ia32_shared_page[cpu])
-		panic("failed to allocate ia32_shared_page[%d]\n", cpu);
-
-	cpu_gdt_table[cpu] = page_address(ia32_shared_page[cpu]);
-
-	/* Copy from the boot cpu's GDT */
-	memcpy(cpu_gdt_table[cpu], ia32_boot_gdt, PAGE_SIZE);
-}
-
-
-/*
- * Setup IA32 GDT and TSS
- */
-static void
-ia32_boot_gdt_init (void)
-{
-	unsigned long ldt_size;
-
-	ia32_shared_page[0] = alloc_page(GFP_KERNEL);
-	if (!ia32_shared_page[0])
-		panic("failed to allocate ia32_shared_page[0]\n");
-
-	ia32_boot_gdt = page_address(ia32_shared_page[0]);
-	cpu_gdt_table[0] = ia32_boot_gdt;
-
-	/* CS descriptor in IA-32 (scrambled) format */
-	ia32_boot_gdt[__USER_CS >> 3]
-		= IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT,
-				      0xb, 1, 3, 1, 1, 1, 1);
-
-	/* DS descriptor in IA-32 (scrambled) format */
-	ia32_boot_gdt[__USER_DS >> 3]
-		= IA32_SEG_DESCRIPTOR(0, (IA32_GATE_END-1) >> IA32_PAGE_SHIFT,
-				      0x3, 1, 3, 1, 1, 1, 1);
-
-	ldt_size = PAGE_ALIGN(IA32_LDT_ENTRIES*IA32_LDT_ENTRY_SIZE);
-	ia32_boot_gdt[TSS_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_TSS_OFFSET, 235,
-						       0xb, 0, 3, 1, 1, 1, 0);
-	ia32_boot_gdt[LDT_ENTRY] = IA32_SEG_DESCRIPTOR(IA32_LDT_OFFSET, ldt_size - 1,
-						       0x2, 0, 3, 1, 1, 1, 0);
-}
-
-static void
-ia32_gate_page_init(void)
-{
-	unsigned long *sr;
-
-	ia32_gate_page = alloc_page(GFP_KERNEL);
-	sr = page_address(ia32_gate_page);
-	/* This is popl %eax ; movl $,%eax ; int $0x80 */
-	*sr++ = 0xb858 | (__IA32_NR_sigreturn << 16) | (0x80cdUL << 48);
-
-	/* This is movl $,%eax ; int $0x80 */
-	*sr = 0xb8 | (__IA32_NR_rt_sigreturn << 8) | (0x80cdUL << 40);
-}
-
-void
-ia32_mem_init(void)
-{
-	ia32_boot_gdt_init();
-	ia32_gate_page_init();
-}
-
-/*
- * Handle bad IA32 interrupt via syscall
- */
-void
-ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs)
-{
-	siginfo_t siginfo;
-
-	if (die_if_kernel("Bad IA-32 interrupt", regs, int_num))
-		return;
-
-	siginfo.si_signo = SIGTRAP;
-	siginfo.si_errno = int_num;	/* XXX is it OK to abuse si_errno like this? */
-	siginfo.si_flags = 0;
-	siginfo.si_isr = 0;
-	siginfo.si_addr = NULL;
-	siginfo.si_imm = 0;
-	siginfo.si_code = TRAP_BRKPT;
-	force_sig_info(SIGTRAP, &siginfo, current);
-}
-
-void
-ia32_cpu_init (void)
-{
-	/* initialize global ia32 state - CR0 and CR4 */
-	ia64_setreg(_IA64_REG_AR_CFLAG, (((ulong) IA32_CR4 << 32) | IA32_CR0));
-}
-
-static int __init
-ia32_init (void)
-{
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-	{
-		extern struct kmem_cache *ia64_partial_page_cachep;
-
-		ia64_partial_page_cachep = kmem_cache_create("ia64_partial_page_cache",
-					sizeof(struct ia64_partial_page),
-					0, SLAB_PANIC, NULL);
-	}
-#endif
-	return 0;
-}
-
-__initcall(ia32_init);

arch/ia64/ia32/ia32_traps.c

@@ -1,156 +0,0 @@
-/*
- * IA-32 exception handlers
- *
- * Copyright (C) 2000 Asit K. Mallick <asit.k.mallick@intel.com>
- * Copyright (C) 2001-2002 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * 06/16/00	A. Mallick	added siginfo for most cases (close to IA32)
- * 09/29/00	D. Mosberger	added ia32_intercept()
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-#include "ia32priv.h"
-
-#include <asm/intrinsics.h>
-#include <asm/ptrace.h>
-
-int
-ia32_intercept (struct pt_regs *regs, unsigned long isr)
-{
-	switch ((isr >> 16) & 0xff) {
-	      case 0:	/* Instruction intercept fault */
-	      case 4:	/* Locked Data reference fault */
-	      case 1:	/* Gate intercept trap */
-		return -1;
-
-	      case 2:	/* System flag trap */
-		if (((isr >> 14) & 0x3) >= 2) {
-			/* MOV SS, POP SS instructions */
-			ia64_psr(regs)->id = 1;
-			return 0;
-		} else
-			return -1;
-	}
-	return -1;
-}
-
-int
-ia32_exception (struct pt_regs *regs, unsigned long isr)
-{
-	struct siginfo siginfo;
-
-	/* initialize these fields to avoid leaking kernel bits to user space: */
-	siginfo.si_errno = 0;
-	siginfo.si_flags = 0;
-	siginfo.si_isr = 0;
-	siginfo.si_imm = 0;
-	switch ((isr >> 16) & 0xff) {
-	      case 1:
-	      case 2:
-		siginfo.si_signo = SIGTRAP;
-		if (isr == 0)
-			siginfo.si_code = TRAP_TRACE;
-		else if (isr & 0x4)
-			siginfo.si_code = TRAP_BRANCH;
-		else
-			siginfo.si_code = TRAP_BRKPT;
-		break;
-
-	      case 3:
-		siginfo.si_signo = SIGTRAP;
-		siginfo.si_code = TRAP_BRKPT;
-		break;
-
-	      case 0:	/* Divide fault */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = FPE_INTDIV;
-		break;
-
-	      case 4:	/* Overflow */
-	      case 5:	/* Bounds fault */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = 0;
-		break;
-
-	      case 6:	/* Invalid Op-code */
-		siginfo.si_signo = SIGILL;
-		siginfo.si_code = ILL_ILLOPN;
-		break;
-
-	      case 7:	/* FP DNA */
-	      case 8:	/* Double Fault */
-	      case 9:	/* Invalid TSS */
-	      case 11:	/* Segment not present */
-	      case 12:	/* Stack fault */
-	      case 13:	/* General Protection Fault */
-		siginfo.si_signo = SIGSEGV;
-		siginfo.si_code = 0;
-		break;
-
-	      case 16:	/* Pending FP error */
-		{
-			unsigned long fsr, fcr;
-
-			fsr = ia64_getreg(_IA64_REG_AR_FSR);
-			fcr = ia64_getreg(_IA64_REG_AR_FCR);
-
-			siginfo.si_signo = SIGFPE;
-			/*
-			 * (~cwd & swd) will mask out exceptions that are not set to unmasked
-			 * status.  0x3f is the exception bits in these regs, 0x200 is the
-			 * C1 reg you need in case of a stack fault, 0x040 is the stack
-			 * fault bit.  We should only be taking one exception at a time,
-			 * so if this combination doesn't produce any single exception,
-			 * then we have a bad program that isn't synchronizing its FPU usage
-			 * and it will suffer the consequences since we won't be able to
-			 * fully reproduce the context of the exception
-			 */
-			siginfo.si_isr = isr;
-			siginfo.si_flags = __ISR_VALID;
-			switch(((~fcr) & (fsr & 0x3f)) | (fsr & 0x240)) {
-				case 0x000:
-				default:
-					siginfo.si_code = 0;
-					break;
-				case 0x001: /* Invalid Op */
-				case 0x040: /* Stack Fault */
-				case 0x240: /* Stack Fault | Direction */
-					siginfo.si_code = FPE_FLTINV;
-					break;
-				case 0x002: /* Denormalize */
-				case 0x010: /* Underflow */
-					siginfo.si_code = FPE_FLTUND;
-					break;
-				case 0x004: /* Zero Divide */
-					siginfo.si_code = FPE_FLTDIV;
-					break;
-				case 0x008: /* Overflow */
-					siginfo.si_code = FPE_FLTOVF;
-					break;
-				case 0x020: /* Precision */
-					siginfo.si_code = FPE_FLTRES;
-					break;
-			}
-
-			break;
-		}
-
-	      case 17:	/* Alignment check */
-		siginfo.si_signo = SIGSEGV;
-		siginfo.si_code = BUS_ADRALN;
-		break;
-
-	      case 19:	/* SSE Numeric error */
-		siginfo.si_signo = SIGFPE;
-		siginfo.si_code = 0;
-		break;
-
-	      default:
-		return -1;
-	}
-	force_sig_info(siginfo.si_signo, &siginfo, current);
-	return 0;
-}

arch/ia64/ia32/ia32priv.h

@@ -1,532 +0,0 @@
-#ifndef _ASM_IA64_IA32_PRIV_H
-#define _ASM_IA64_IA32_PRIV_H
-
-
-#include <asm/ia32.h>
-
-#ifdef CONFIG_IA32_SUPPORT
-
-#include <linux/binfmts.h>
-#include <linux/compat.h>
-#include <linux/rbtree.h>
-
-#include <asm/processor.h>
-
-/*
- * 32 bit structures for IA32 support.
- */
-
-#define IA32_PAGE_SIZE		(1UL << IA32_PAGE_SHIFT)
-#define IA32_PAGE_MASK		(~(IA32_PAGE_SIZE - 1))
-#define IA32_PAGE_ALIGN(addr)	(((addr) + IA32_PAGE_SIZE - 1) & IA32_PAGE_MASK)
-#define IA32_CLOCKS_PER_SEC	100	/* Cast in stone for IA32 Linux */
-
-/*
- * partially mapped pages provide precise accounting of which 4k sub pages
- * are mapped and which ones are not, thereby improving IA-32 compatibility.
- */
-struct ia64_partial_page {
-	struct ia64_partial_page *next; /* linked list, sorted by address */
-	struct rb_node		pp_rb;
-	/* 64K is the largest "normal" page supported by ia64 ABI. So 4K*64
-	 * should suffice.*/
-	unsigned long		bitmap;
-	unsigned int		base;
-};
-
-struct ia64_partial_page_list {
-	struct ia64_partial_page *pp_head; /* list head, points to the lowest
-					   * addressed partial page */
-	struct rb_root		ppl_rb;
-	struct ia64_partial_page *pp_hint; /* pp_hint->next is the last
-					   * accessed partial page */
-	atomic_t		pp_count; /* reference count */
-};
-
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-struct ia64_partial_page_list* ia32_init_pp_list (void);
-#else
-# define ia32_init_pp_list()	0
-#endif
-
-/* sigcontext.h */
-/*
- * As documented in the iBCS2 standard..
- *
- * The first part of "struct _fpstate" is just the
- * normal i387 hardware setup, the extra "status"
- * word is used to save the coprocessor status word
- * before entering the handler.
- */
-struct _fpreg_ia32 {
-       unsigned short significand[4];
-       unsigned short exponent;
-};
-
-struct _fpxreg_ia32 {
-        unsigned short significand[4];
-        unsigned short exponent;
-        unsigned short padding[3];
-};
-
-struct _xmmreg_ia32 {
-        unsigned int element[4];
-};
-
-
-struct _fpstate_ia32 {
-       unsigned int    cw,
-		       sw,
-		       tag,
-		       ipoff,
-		       cssel,
-		       dataoff,
-		       datasel;
-       struct _fpreg_ia32      _st[8];
-       unsigned short  status;
-       unsigned short  magic;          /* 0xffff = regular FPU data only */
-
-       /* FXSR FPU environment */
-       unsigned int         _fxsr_env[6];   /* FXSR FPU env is ignored */
-       unsigned int         mxcsr;
-       unsigned int         reserved;
-       struct _fpxreg_ia32  _fxsr_st[8];    /* FXSR FPU reg data is ignored */
-       struct _xmmreg_ia32  _xmm[8];
-       unsigned int         padding[56];
-};
-
-struct sigcontext_ia32 {
-       unsigned short gs, __gsh;
-       unsigned short fs, __fsh;
-       unsigned short es, __esh;
-       unsigned short ds, __dsh;
-       unsigned int edi;
-       unsigned int esi;
-       unsigned int ebp;
-       unsigned int esp;
-       unsigned int ebx;
-       unsigned int edx;
-       unsigned int ecx;
-       unsigned int eax;
-       unsigned int trapno;
-       unsigned int err;
-       unsigned int eip;
-       unsigned short cs, __csh;
-       unsigned int eflags;
-       unsigned int esp_at_signal;
-       unsigned short ss, __ssh;
-       unsigned int fpstate;		/* really (struct _fpstate_ia32 *) */
-       unsigned int oldmask;
-       unsigned int cr2;
-};
-
-/* user.h */
-/*
- * IA32 (Pentium III/4) FXSR, SSE support
- *
- * Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for
- * interacting with the FXSR-format floating point environment.  Floating
- * point data can be accessed in the regular format in the usual manner,
- * and both the standard and SIMD floating point data can be accessed via
- * the new ptrace requests.  In either case, changes to the FPU environment
- * will be reflected in the task's state as expected.
- */
-struct ia32_user_i387_struct {
-	int	cwd;
-	int	swd;
-	int	twd;
-	int	fip;
-	int	fcs;
-	int	foo;
-	int	fos;
-	/* 8*10 bytes for each FP-reg = 80 bytes */
-	struct _fpreg_ia32 	st_space[8];
-};
-
-struct ia32_user_fxsr_struct {
-	unsigned short	cwd;
-	unsigned short	swd;
-	unsigned short	twd;
-	unsigned short	fop;
-	int	fip;
-	int	fcs;
-	int	foo;
-	int	fos;
-	int	mxcsr;
-	int	reserved;
-	int	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
-	int	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
-	int	padding[56];
-};
-
-/* signal.h */
-#define IA32_SET_SA_HANDLER(ka,handler,restorer)				\
-				((ka)->sa.sa_handler = (__sighandler_t)		\
-					(((unsigned long)(restorer) << 32)	\
-					 | ((handler) & 0xffffffff)))
-#define IA32_SA_HANDLER(ka)	((unsigned long) (ka)->sa.sa_handler & 0xffffffff)
-#define IA32_SA_RESTORER(ka)	((unsigned long) (ka)->sa.sa_handler >> 32)
-
-#define __IA32_NR_sigreturn 119
-#define __IA32_NR_rt_sigreturn 173
-
-struct sigaction32 {
-       unsigned int sa_handler;		/* Really a pointer, but need to deal with 32 bits */
-       unsigned int sa_flags;
-       unsigned int sa_restorer;	/* Another 32 bit pointer */
-       compat_sigset_t sa_mask;		/* A 32 bit mask */
-};
-
-struct old_sigaction32 {
-       unsigned int  sa_handler;	/* Really a pointer, but need to deal
-					     with 32 bits */
-       compat_old_sigset_t sa_mask;		/* A 32 bit mask */
-       unsigned int sa_flags;
-       unsigned int sa_restorer;	/* Another 32 bit pointer */
-};
-
-typedef struct sigaltstack_ia32 {
-	unsigned int	ss_sp;
-	int		ss_flags;
-	unsigned int	ss_size;
-} stack_ia32_t;
-
-struct ucontext_ia32 {
-	unsigned int	  uc_flags;
-	unsigned int	  uc_link;
-	stack_ia32_t	  uc_stack;
-	struct sigcontext_ia32 uc_mcontext;
-	sigset_t	  uc_sigmask;	/* mask last for extensibility */
-};
-
-struct stat64 {
-	unsigned long long	st_dev;
-	unsigned char	__pad0[4];
-	unsigned int	__st_ino;
-	unsigned int	st_mode;
-	unsigned int	st_nlink;
-	unsigned int	st_uid;
-	unsigned int	st_gid;
-	unsigned long long	st_rdev;
-	unsigned char	__pad3[4];
-	unsigned int	st_size_lo;
-	unsigned int	st_size_hi;
-	unsigned int	st_blksize;
-	unsigned int	st_blocks;	/* Number 512-byte blocks allocated. */
-	unsigned int	__pad4;		/* future possible st_blocks high bits */
-	unsigned int	st_atime;
-	unsigned int	st_atime_nsec;
-	unsigned int	st_mtime;
-	unsigned int	st_mtime_nsec;
-	unsigned int	st_ctime;
-	unsigned int	st_ctime_nsec;
-	unsigned int	st_ino_lo;
-	unsigned int	st_ino_hi;
-};
-
-typedef struct compat_siginfo {
-	int si_signo;
-	int si_errno;
-	int si_code;
-
-	union {
-		int _pad[((128/sizeof(int)) - 3)];
-
-		/* kill() */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-		} _kill;
-
-		/* POSIX.1b timers */
-		struct {
-			compat_timer_t _tid;		/* timer id */
-			int _overrun;		/* overrun count */
-			char _pad[sizeof(unsigned int) - sizeof(int)];
-			compat_sigval_t _sigval;	/* same as below */
-			int _sys_private;       /* not to be passed to user */
-		} _timer;
-
-		/* POSIX.1b signals */
-		struct {
-			unsigned int _pid;	/* sender's pid */
-			unsigned int _uid;	/* sender's uid */
-			compat_sigval_t _sigval;
-		} _rt;
-
-		/* SIGCHLD */
-		struct {
-			unsigned int _pid;	/* which child */
-			unsigned int _uid;	/* sender's uid */
-			int _status;		/* exit code */
-			compat_clock_t _utime;
-			compat_clock_t _stime;
-		} _sigchld;
-
-		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-		struct {
-			unsigned int _addr;	/* faulting insn/memory ref. */
-		} _sigfault;
-
-		/* SIGPOLL */
-		struct {
-			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
-			int _fd;
-		} _sigpoll;
-	} _sifields;
-} compat_siginfo_t;
-
-/*
- * IA-32 ELF specific definitions for IA-64.
- */
-
-#define _ASM_IA64_ELF_H		/* Don't include elf.h */
-
-#include <linux/sched.h>
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ((x)->e_machine == EM_386)
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS	ELFCLASS32
-#define ELF_DATA	ELFDATA2LSB
-#define ELF_ARCH	EM_386
-
-#define IA32_STACK_TOP		IA32_PAGE_OFFSET
-#define IA32_GATE_OFFSET	IA32_PAGE_OFFSET
-#define IA32_GATE_END		IA32_PAGE_OFFSET + PAGE_SIZE
-
-/*
- * The system segments (GDT, TSS, LDT) have to be mapped below 4GB so the IA-32 engine can
- * access them.
- */
-#define IA32_GDT_OFFSET		(IA32_PAGE_OFFSET + PAGE_SIZE)
-#define IA32_TSS_OFFSET		(IA32_PAGE_OFFSET + 2*PAGE_SIZE)
-#define IA32_LDT_OFFSET		(IA32_PAGE_OFFSET + 3*PAGE_SIZE)
-
-#define ELF_EXEC_PAGESIZE	IA32_PAGE_SIZE
-
-/*
- * This is the location that an ET_DYN program is loaded if exec'ed.
- * Typical use of this is to invoke "./ld.so someprog" to test out a
- * new version of the loader.  We need to make sure that it is out of
- * the way of the program that it will "exec", and that there is
- * sufficient room for the brk.
- */
-#define ELF_ET_DYN_BASE		(IA32_PAGE_OFFSET/3 + 0x1000000)
-
-void ia64_elf32_init(struct pt_regs *regs);
-#define ELF_PLAT_INIT(_r, load_addr)	ia64_elf32_init(_r)
-
-/* This macro yields a bitmask that programs can use to figure out
-   what instruction set this CPU supports.  */
-#define ELF_HWCAP	0
-
-/* This macro yields a string that ld.so will use to load
-   implementation specific libraries for optimization.  Not terribly
-   relevant until we have real hardware to play with... */
-#define ELF_PLATFORM	NULL
-
-#ifdef __KERNEL__
-# define SET_PERSONALITY(EX)				\
-	(current->personality = PER_LINUX)
-#endif
-
-#define IA32_EFLAG	0x200
-
-/*
- * IA-32 ELF specific definitions for IA-64.
- */
-
-#define __USER_CS      0x23
-#define __USER_DS      0x2B
-
-/*
- * The per-cpu GDT has 32 entries: see <asm-i386/segment.h>
- */
-#define GDT_ENTRIES 32
-
-#define GDT_SIZE	(GDT_ENTRIES * 8)
-
-#define TSS_ENTRY 14
-#define LDT_ENTRY	(TSS_ENTRY + 1)
-
-#define IA32_SEGSEL_RPL		(0x3 << 0)
-#define IA32_SEGSEL_TI		(0x1 << 2)
-#define IA32_SEGSEL_INDEX_SHIFT	3
-
-#define _TSS			((unsigned long) TSS_ENTRY << IA32_SEGSEL_INDEX_SHIFT)
-#define _LDT			((unsigned long) LDT_ENTRY << IA32_SEGSEL_INDEX_SHIFT)
-
-#define IA32_SEG_BASE		16
-#define IA32_SEG_TYPE		40
-#define IA32_SEG_SYS		44
-#define IA32_SEG_DPL		45
-#define IA32_SEG_P		47
-#define IA32_SEG_HIGH_LIMIT	48
-#define IA32_SEG_AVL		52
-#define IA32_SEG_DB		54
-#define IA32_SEG_G		55
-#define IA32_SEG_HIGH_BASE	56
-
-#define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, gran)	\
-	       (((limit) & 0xffff)								\
-		| (((unsigned long) (base) & 0xffffff) << IA32_SEG_BASE)			\
-		| ((unsigned long) (segtype) << IA32_SEG_TYPE)					\
-		| ((unsigned long) (nonsysseg) << IA32_SEG_SYS)					\
-		| ((unsigned long) (dpl) << IA32_SEG_DPL)					\
-		| ((unsigned long) (segpresent) << IA32_SEG_P)					\
-		| ((((unsigned long) (limit) >> 16) & 0xf) << IA32_SEG_HIGH_LIMIT)		\
-		| ((unsigned long) (avl) << IA32_SEG_AVL)					\
-		| ((unsigned long) (segdb) << IA32_SEG_DB)					\
-		| ((unsigned long) (gran) << IA32_SEG_G)					\
-		| ((((unsigned long) (base) >> 24) & 0xff) << IA32_SEG_HIGH_BASE))
-
-#define SEG_LIM		32
-#define SEG_TYPE	52
-#define SEG_SYS		56
-#define SEG_DPL		57
-#define SEG_P		59
-#define SEG_AVL		60
-#define SEG_DB		62
-#define SEG_G		63
-
-/* Unscramble an IA-32 segment descriptor into the IA-64 format.  */
-#define IA32_SEG_UNSCRAMBLE(sd)									 \
-	(   (((sd) >> IA32_SEG_BASE) & 0xffffff) | ((((sd) >> IA32_SEG_HIGH_BASE) & 0xff) << 24) \
-	 | ((((sd) & 0xffff) | ((((sd) >> IA32_SEG_HIGH_LIMIT) & 0xf) << 16)) << SEG_LIM)	 \
-	 | ((((sd) >> IA32_SEG_TYPE) & 0xf) << SEG_TYPE)					 \
-	 | ((((sd) >> IA32_SEG_SYS) & 0x1) << SEG_SYS)						 \
-	 | ((((sd) >> IA32_SEG_DPL) & 0x3) << SEG_DPL)						 \
-	 | ((((sd) >> IA32_SEG_P) & 0x1) << SEG_P)						 \
-	 | ((((sd) >> IA32_SEG_AVL) & 0x1) << SEG_AVL)						 \
-	 | ((((sd) >> IA32_SEG_DB) & 0x1) << SEG_DB)						 \
-	 | ((((sd) >> IA32_SEG_G) & 0x1) << SEG_G))
-
-#define IA32_IOBASE	0x2000000000000000UL /* Virtual address for I/O space */
-
-#define IA32_CR0	0x80000001	/* Enable PG and PE bits */
-#define IA32_CR4	0x600		/* MMXEX and FXSR on */
-
-/*
- *  IA32 floating point control registers starting values
- */
-
-#define IA32_FSR_DEFAULT	0x55550000		/* set all tag bits */
-#define IA32_FCR_DEFAULT	0x17800000037fUL	/* extended precision, all masks */
-
-#define IA32_PTRACE_GETREGS	12
-#define IA32_PTRACE_SETREGS	13
-#define IA32_PTRACE_GETFPREGS	14
-#define IA32_PTRACE_SETFPREGS	15
-#define IA32_PTRACE_GETFPXREGS	18
-#define IA32_PTRACE_SETFPXREGS	19
-
-#define ia32_start_thread(regs,new_ip,new_sp) do {				\
-	set_fs(USER_DS);							\
-	ia64_psr(regs)->cpl = 3;	/* set user mode */			\
-	ia64_psr(regs)->ri = 0;		/* clear return slot number */		\
-	ia64_psr(regs)->is = 1;		/* IA-32 instruction set */		\
-	regs->cr_iip = new_ip;							\
-	regs->ar_rsc = 0xc;		/* enforced lazy mode, priv. level 3 */	\
-	regs->ar_rnat = 0;							\
-	regs->loadrs = 0;							\
-	regs->r12 = new_sp;							\
-} while (0)
-
-/*
- * Local Descriptor Table (LDT) related declarations.
- */
-
-#define IA32_LDT_ENTRIES	8192		/* Maximum number of LDT entries supported. */
-#define IA32_LDT_ENTRY_SIZE	8		/* The size of each LDT entry. */
-
-#define LDT_entry_a(info) \
-	((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff))
-
-#define LDT_entry_b(info)				\
-	(((info)->base_addr & 0xff000000) |		\
-	(((info)->base_addr & 0x00ff0000) >> 16) |	\
-	((info)->limit & 0xf0000) |			\
-	(((info)->read_exec_only ^ 1) << 9) |		\
-	((info)->contents << 10) |			\
-	(((info)->seg_not_present ^ 1) << 15) |		\
-	((info)->seg_32bit << 22) |			\
-	((info)->limit_in_pages << 23) |		\
-	((info)->useable << 20) |			\
-	0x7100)
-
-#define LDT_empty(info) (			\
-	(info)->base_addr	== 0	&&	\
-	(info)->limit		== 0	&&	\
-	(info)->contents	== 0	&&	\
-	(info)->read_exec_only	== 1	&&	\
-	(info)->seg_32bit	== 0	&&	\
-	(info)->limit_in_pages	== 0	&&	\
-	(info)->seg_not_present	== 1	&&	\
-	(info)->useable		== 0	)
-
-static inline void
-load_TLS (struct thread_struct *t, unsigned int cpu)
-{
-	extern unsigned long *cpu_gdt_table[NR_CPUS];
-
-	memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 0, &t->tls_array[0], sizeof(long));
-	memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 1, &t->tls_array[1], sizeof(long));
-	memcpy(cpu_gdt_table[cpu] + GDT_ENTRY_TLS_MIN + 2, &t->tls_array[2], sizeof(long));
-}
-
-struct ia32_user_desc {
-	unsigned int entry_number;
-	unsigned int base_addr;
-	unsigned int limit;
-	unsigned int seg_32bit:1;
-	unsigned int contents:2;
-	unsigned int read_exec_only:1;
-	unsigned int limit_in_pages:1;
-	unsigned int seg_not_present:1;
-	unsigned int useable:1;
-};
-
-struct linux_binprm;
-
-extern void ia32_init_addr_space (struct pt_regs *regs);
-extern int ia32_setup_arg_pages (struct linux_binprm *bprm, int exec_stack);
-extern unsigned long ia32_do_mmap (struct file *, unsigned long, unsigned long, int, int, loff_t);
-extern void ia32_load_segment_descriptors (struct task_struct *task);
-
-#define ia32f2ia64f(dst,src)			\
-do {						\
-	ia64_ldfe(6,src);			\
-	ia64_stop();				\
-	ia64_stf_spill(dst, 6);			\
-} while(0)
-
-#define ia64f2ia32f(dst,src)			\
-do {						\
-	ia64_ldf_fill(6, src);			\
-	ia64_stop();				\
-	ia64_stfe(dst, 6);			\
-} while(0)
-
-struct user_regs_struct32 {
-	__u32 ebx, ecx, edx, esi, edi, ebp, eax;
-	unsigned short ds, __ds, es, __es;
-	unsigned short fs, __fs, gs, __gs;
-	__u32 orig_eax, eip;
-	unsigned short cs, __cs;
-	__u32 eflags, esp;
-	unsigned short ss, __ss;
-};
-
-/* Prototypes for use in elfcore32.h */
-extern int save_ia32_fpstate (struct task_struct *, struct ia32_user_i387_struct __user *);
-extern int save_ia32_fpxstate (struct task_struct *, struct ia32_user_fxsr_struct __user *);
-
-#endif /* !CONFIG_IA32_SUPPORT */
-
-#endif /* _ASM_IA64_IA32_PRIV_H */

arch/ia64/ia32/sys_ia32.c

@@ -1,2765 +0,0 @@
-/*
- * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Derived from sys_sparc32.c.
- *
- * Copyright (C) 2000		VA Linux Co
- * Copyright (C) 2000		Don Dugger <n0ano@valinux.com>
- * Copyright (C) 1999		Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 1997,1998	Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * Copyright (C) 1997		David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 2000-2003, 2005 Hewlett-Packard Co
- *	David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 2004		Gordon Jin <gordon.jin@intel.com>
- *
- * These routines maintain argument size conversion between 32bit and 64bit
- * environment.
- */
-
-#include <linux/kernel.h>
-#include <linux/syscalls.h>
-#include <linux/sysctl.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/signal.h>
-#include <linux/resource.h>
-#include <linux/times.h>
-#include <linux/utsname.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/mm.h>
-#include <linux/shm.h>
-#include <linux/slab.h>
-#include <linux/uio.h>
-#include <linux/socket.h>
-#include <linux/quota.h>
-#include <linux/poll.h>
-#include <linux/eventpoll.h>
-#include <linux/personality.h>
-#include <linux/ptrace.h>
-#include <linux/regset.h>
-#include <linux/stat.h>
-#include <linux/ipc.h>
-#include <linux/capability.h>
-#include <linux/compat.h>
-#include <linux/vfs.h>
-#include <linux/mman.h>
-#include <linux/mutex.h>
-
-#include <asm/intrinsics.h>
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-#include "ia32priv.h"
-
-#include <net/scm.h>
-#include <net/sock.h>
-
-#define DEBUG	0
-
-#if DEBUG
-# define DBG(fmt...)	printk(KERN_DEBUG fmt)
-#else
-# define DBG(fmt...)
-#endif
-
-#define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
-
-#define OFFSET4K(a)		((a) & 0xfff)
-#define PAGE_START(addr)	((addr) & PAGE_MASK)
-#define MINSIGSTKSZ_IA32	2048
-
-#define high2lowuid(uid) ((uid) > 65535 ? 65534 : (uid))
-#define high2lowgid(gid) ((gid) > 65535 ? 65534 : (gid))
-
-/*
- * Anything that modifies or inspects ia32 user virtual memory must hold this semaphore
- * while doing so.
- */
-/* XXX make per-mm: */
-static DEFINE_MUTEX(ia32_mmap_mutex);
-
-asmlinkage long
-sys32_execve (char __user *name, compat_uptr_t __user *argv, compat_uptr_t __user *envp,
-	      struct pt_regs *regs)
-{
-	long error;
-	char *filename;
-	unsigned long old_map_base, old_task_size, tssd;
-
-	filename = getname(name);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		return error;
-
-	old_map_base  = current->thread.map_base;
-	old_task_size = current->thread.task_size;
-	tssd = ia64_get_kr(IA64_KR_TSSD);
-
-	/* we may be exec'ing a 64-bit process: reset map base, task-size, and io-base: */
-	current->thread.map_base  = DEFAULT_MAP_BASE;
-	current->thread.task_size = DEFAULT_TASK_SIZE;
-	ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob);
-	ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1);
-
-	error = compat_do_execve(filename, argv, envp, regs);
-	putname(filename);
-
-	if (error < 0) {
-		/* oops, execve failed, switch back to old values... */
-		ia64_set_kr(IA64_KR_IO_BASE, IA32_IOBASE);
-		ia64_set_kr(IA64_KR_TSSD, tssd);
-		current->thread.map_base  = old_map_base;
-		current->thread.task_size = old_task_size;
-	}
-
-	return error;
-}
-
-
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-
-
-static int
-get_page_prot (struct vm_area_struct *vma, unsigned long addr)
-{
-	int prot = 0;
-
-	if (!vma || vma->vm_start > addr)
-		return 0;
-
-	if (vma->vm_flags & VM_READ)
-		prot |= PROT_READ;
-	if (vma->vm_flags & VM_WRITE)
-		prot |= PROT_WRITE;
-	if (vma->vm_flags & VM_EXEC)
-		prot |= PROT_EXEC;
-	return prot;
-}
-
-/*
- * Map a subpage by creating an anonymous page that contains the union of the old page and
- * the subpage.
- */
-static unsigned long
-mmap_subpage (struct file *file, unsigned long start, unsigned long end, int prot, int flags,
-	      loff_t off)
-{
-	void *page = NULL;
-	struct inode *inode;
-	unsigned long ret = 0;
-	struct vm_area_struct *vma = find_vma(current->mm, start);
-	int old_prot = get_page_prot(vma, start);
-
-	DBG("mmap_subpage(file=%p,start=0x%lx,end=0x%lx,prot=%x,flags=%x,off=0x%llx)\n",
-	    file, start, end, prot, flags, off);
-
-
-	/* Optimize the case where the old mmap and the new mmap are both anonymous */
-	if ((old_prot & PROT_WRITE) && (flags & MAP_ANONYMOUS) && !vma->vm_file) {
-		if (clear_user((void __user *) start, end - start)) {
-			ret = -EFAULT;
-			goto out;
-		}
-		goto skip_mmap;
-	}
-
-	page = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!page)
-		return -ENOMEM;
-
-	if (old_prot)
-		copy_from_user(page, (void __user *) PAGE_START(start), PAGE_SIZE);
-
-	down_write(&current->mm->mmap_sem);
-	{
-		ret = do_mmap(NULL, PAGE_START(start), PAGE_SIZE, prot | PROT_WRITE,
-			      flags | MAP_FIXED | MAP_ANONYMOUS, 0);
-	}
-	up_write(&current->mm->mmap_sem);
-
-	if (IS_ERR((void *) ret))
-		goto out;
-
-	if (old_prot) {
-		/* copy back the old page contents.  */
-		if (offset_in_page(start))
-			copy_to_user((void __user *) PAGE_START(start), page,
-				     offset_in_page(start));
-		if (offset_in_page(end))
-			copy_to_user((void __user *) end, page + offset_in_page(end),
-				     PAGE_SIZE - offset_in_page(end));
-	}
-
-	if (!(flags & MAP_ANONYMOUS)) {
-		/* read the file contents */
-		inode = file->f_path.dentry->d_inode;
-		if (!inode->i_fop || !file->f_op->read
-		    || ((*file->f_op->read)(file, (char __user *) start, end - start, &off) < 0))
-		{
-			ret = -EINVAL;
-			goto out;
-		}
-	}
-
- skip_mmap:
-	if (!(prot & PROT_WRITE))
-		ret = sys_mprotect(PAGE_START(start), PAGE_SIZE, prot | old_prot);
-  out:
-	if (page)
-		free_page((unsigned long) page);
-	return ret;
-}
-
-/* SLAB cache for ia64_partial_page structures */
-struct kmem_cache *ia64_partial_page_cachep;
-
-/*
- * init ia64_partial_page_list.
- * return 0 means kmalloc fail.
- */
-struct ia64_partial_page_list*
-ia32_init_pp_list(void)
-{
-	struct ia64_partial_page_list *p;
-
-	if ((p = kmalloc(sizeof(*p), GFP_KERNEL)) == NULL)
-		return p;
-	p->pp_head = NULL;
-	p->ppl_rb = RB_ROOT;
-	p->pp_hint = NULL;
-	atomic_set(&p->pp_count, 1);
-	return p;
-}
-
-/*
- * Search for the partial page with @start in partial page list @ppl.
- * If finds the partial page, return the found partial page.
- * Else, return 0 and provide @pprev, @rb_link, @rb_parent to
- * be used by later __ia32_insert_pp().
- */
-static struct ia64_partial_page *
-__ia32_find_pp(struct ia64_partial_page_list *ppl, unsigned int start,
-	struct ia64_partial_page **pprev, struct rb_node ***rb_link,
-	struct rb_node **rb_parent)
-{
-	struct ia64_partial_page *pp;
-	struct rb_node **__rb_link, *__rb_parent, *rb_prev;
-
-	pp = ppl->pp_hint;
-	if (pp && pp->base == start)
-		return pp;
-
-	__rb_link = &ppl->ppl_rb.rb_node;
-	rb_prev = __rb_parent = NULL;
-
-	while (*__rb_link) {
-		__rb_parent = *__rb_link;
-		pp = rb_entry(__rb_parent, struct ia64_partial_page, pp_rb);
-
-		if (pp->base == start) {
-			ppl->pp_hint = pp;
-			return pp;
-		} else if (pp->base < start) {
-			rb_prev = __rb_parent;
-			__rb_link = &__rb_parent->rb_right;
-		} else {
-			__rb_link = &__rb_parent->rb_left;
-		}
-	}
-
-	*rb_link = __rb_link;
-	*rb_parent = __rb_parent;
-	*pprev = NULL;
-	if (rb_prev)
-		*pprev = rb_entry(rb_prev, struct ia64_partial_page, pp_rb);
-	return NULL;
-}
-
-/*
- * insert @pp into @ppl.
- */
-static void
-__ia32_insert_pp(struct ia64_partial_page_list *ppl,
-	struct ia64_partial_page *pp, struct ia64_partial_page *prev,
-	struct rb_node **rb_link, struct rb_node *rb_parent)
-{
-	/* link list */
-	if (prev) {
-		pp->next = prev->next;
-		prev->next = pp;
-	} else {
-		ppl->pp_head = pp;
-		if (rb_parent)
-			pp->next = rb_entry(rb_parent,
-				struct ia64_partial_page, pp_rb);
-		else
-			pp->next = NULL;
-	}
-
-	/* link rb */
-	rb_link_node(&pp->pp_rb, rb_parent, rb_link);
-	rb_insert_color(&pp->pp_rb, &ppl->ppl_rb);
-
-	ppl->pp_hint = pp;
-}
-
-/*
- * delete @pp from partial page list @ppl.
- */
-static void
-__ia32_delete_pp(struct ia64_partial_page_list *ppl,
-	struct ia64_partial_page *pp, struct ia64_partial_page *prev)
-{
-	if (prev) {
-		prev->next = pp->next;
-		if (ppl->pp_hint == pp)
-			ppl->pp_hint = prev;
-	} else {
-		ppl->pp_head = pp->next;
-		if (ppl->pp_hint == pp)
-			ppl->pp_hint = pp->next;
-	}
-	rb_erase(&pp->pp_rb, &ppl->ppl_rb);
-	kmem_cache_free(ia64_partial_page_cachep, pp);
-}
-
-static struct ia64_partial_page *
-__pp_prev(struct ia64_partial_page *pp)
-{
-	struct rb_node *prev = rb_prev(&pp->pp_rb);
-	if (prev)
-		return rb_entry(prev, struct ia64_partial_page, pp_rb);
-	else
-		return NULL;
-}
-
-/*
- * Delete partial pages with address between @start and @end.
- * @start and @end are page aligned.
- */
-static void
-__ia32_delete_pp_range(unsigned int start, unsigned int end)
-{
-	struct ia64_partial_page *pp, *prev;
-	struct rb_node **rb_link, *rb_parent;
-
-	if (start >= end)
-		return;
-
-	pp = __ia32_find_pp(current->thread.ppl, start, &prev,
-					&rb_link, &rb_parent);
-	if (pp)
-		prev = __pp_prev(pp);
-	else {
-		if (prev)
-			pp = prev->next;
-		else
-			pp = current->thread.ppl->pp_head;
-	}
-
-	while (pp && pp->base < end) {
-		struct ia64_partial_page *tmp = pp->next;
-		__ia32_delete_pp(current->thread.ppl, pp, prev);
-		pp = tmp;
-	}
-}
-
-/*
- * Set the range between @start and @end in bitmap.
- * @start and @end should be IA32 page aligned and in the same IA64 page.
- */
-static int
-__ia32_set_pp(unsigned int start, unsigned int end, int flags)
-{
-	struct ia64_partial_page *pp, *prev;
-	struct rb_node ** rb_link, *rb_parent;
-	unsigned int pstart, start_bit, end_bit, i;
-
-	pstart = PAGE_START(start);
-	start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE;
-	end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE;
-	if (end_bit == 0)
-		end_bit = PAGE_SIZE / IA32_PAGE_SIZE;
-	pp = __ia32_find_pp(current->thread.ppl, pstart, &prev,
-					&rb_link, &rb_parent);
-	if (pp) {
-		for (i = start_bit; i < end_bit; i++)
-			set_bit(i, &pp->bitmap);
-		/*
-		 * Check: if this partial page has been set to a full page,
-		 * then delete it.
-		 */
-		if (find_first_zero_bit(&pp->bitmap, sizeof(pp->bitmap)*8) >=
-				PAGE_SIZE/IA32_PAGE_SIZE) {
-			__ia32_delete_pp(current->thread.ppl, pp, __pp_prev(pp));
-		}
-		return 0;
-	}
-
-	/*
-	 * MAP_FIXED may lead to overlapping mmap.
-	 * In this case, the requested mmap area may already mmaped as a full
-	 * page. So check vma before adding a new partial page.
-	 */
-	if (flags & MAP_FIXED) {
-		struct vm_area_struct *vma = find_vma(current->mm, pstart);
-		if (vma && vma->vm_start <= pstart)
-			return 0;
-	}
-
-	/* new a ia64_partial_page */
-	pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
-	if (!pp)
-		return -ENOMEM;
-	pp->base = pstart;
-	pp->bitmap = 0;
-	for (i=start_bit; i<end_bit; i++)
-		set_bit(i, &(pp->bitmap));
-	pp->next = NULL;
-	__ia32_insert_pp(current->thread.ppl, pp, prev, rb_link, rb_parent);
-	return 0;
-}
-
-/*
- * @start and @end should be IA32 page aligned, but don't need to be in the
- * same IA64 page. Split @start and @end to make sure they're in the same IA64
- * page, then call __ia32_set_pp().
- */
-static void
-ia32_set_pp(unsigned int start, unsigned int end, int flags)
-{
-	down_write(&current->mm->mmap_sem);
-	if (flags & MAP_FIXED) {
-		/*
-		 * MAP_FIXED may lead to overlapping mmap. When this happens,
-		 * a series of complete IA64 pages results in deletion of
-		 * old partial pages in that range.
-		 */
-		__ia32_delete_pp_range(PAGE_ALIGN(start), PAGE_START(end));
-	}
-
-	if (end < PAGE_ALIGN(start)) {
-		__ia32_set_pp(start, end, flags);
-	} else {
-		if (offset_in_page(start))
-			__ia32_set_pp(start, PAGE_ALIGN(start), flags);
-		if (offset_in_page(end))
-			__ia32_set_pp(PAGE_START(end), end, flags);
-	}
-	up_write(&current->mm->mmap_sem);
-}
-
-/*
- * Unset the range between @start and @end in bitmap.
- * @start and @end should be IA32 page aligned and in the same IA64 page.
- * After doing that, if the bitmap is 0, then free the page and return 1,
- * 	else return 0;
- * If not find the partial page in the list, then
- * 	If the vma exists, then the full page is set to a partial page;
- *	Else return -ENOMEM.
- */
-static int
-__ia32_unset_pp(unsigned int start, unsigned int end)
-{
-	struct ia64_partial_page *pp, *prev;
-	struct rb_node ** rb_link, *rb_parent;
-	unsigned int pstart, start_bit, end_bit, i;
-	struct vm_area_struct *vma;
-
-	pstart = PAGE_START(start);
-	start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE;
-	end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE;
-	if (end_bit == 0)
-		end_bit = PAGE_SIZE / IA32_PAGE_SIZE;
-
-	pp = __ia32_find_pp(current->thread.ppl, pstart, &prev,
-					&rb_link, &rb_parent);
-	if (pp) {
-		for (i = start_bit; i < end_bit; i++)
-			clear_bit(i, &pp->bitmap);
-		if (pp->bitmap == 0) {
-			__ia32_delete_pp(current->thread.ppl, pp, __pp_prev(pp));
-			return 1;
-		}
-		return 0;
-	}
-
-	vma = find_vma(current->mm, pstart);
-	if (!vma || vma->vm_start > pstart) {
-		return -ENOMEM;
-	}
-
-	/* new a ia64_partial_page */
-	pp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
-	if (!pp)
-		return -ENOMEM;
-	pp->base = pstart;
-	pp->bitmap = 0;
-	for (i = 0; i < start_bit; i++)
-		set_bit(i, &(pp->bitmap));
-	for (i = end_bit; i < PAGE_SIZE / IA32_PAGE_SIZE; i++)
-		set_bit(i, &(pp->bitmap));
-	pp->next = NULL;
-	__ia32_insert_pp(current->thread.ppl, pp, prev, rb_link, rb_parent);
-	return 0;
-}
-
-/*
- * Delete pp between PAGE_ALIGN(start) and PAGE_START(end) by calling
- * __ia32_delete_pp_range(). Unset possible partial pages by calling
- * __ia32_unset_pp().
- * The returned value see __ia32_unset_pp().
- */
-static int
-ia32_unset_pp(unsigned int *startp, unsigned int *endp)
-{
-	unsigned int start = *startp, end = *endp;
-	int ret = 0;
-
-	down_write(&current->mm->mmap_sem);
-
-	__ia32_delete_pp_range(PAGE_ALIGN(start), PAGE_START(end));
-
-	if (end < PAGE_ALIGN(start)) {
-		ret = __ia32_unset_pp(start, end);
-		if (ret == 1) {
-			*startp = PAGE_START(start);
-			*endp = PAGE_ALIGN(end);
-		}
-		if (ret == 0) {
-			/* to shortcut sys_munmap() in sys32_munmap() */
-			*startp = PAGE_START(start);
-			*endp = PAGE_START(end);
-		}
-	} else {
-		if (offset_in_page(start)) {
-			ret = __ia32_unset_pp(start, PAGE_ALIGN(start));
-			if (ret == 1)
-				*startp = PAGE_START(start);
-			if (ret == 0)
-				*startp = PAGE_ALIGN(start);
-			if (ret < 0)
-				goto out;
-		}
-		if (offset_in_page(end)) {
-			ret = __ia32_unset_pp(PAGE_START(end), end);
-			if (ret == 1)
-				*endp = PAGE_ALIGN(end);
-			if (ret == 0)
-				*endp = PAGE_START(end);
-		}
-	}
-
- out:
-	up_write(&current->mm->mmap_sem);
-	return ret;
-}
-
-/*
- * Compare the range between @start and @end with bitmap in partial page.
- * @start and @end should be IA32 page aligned and in the same IA64 page.
- */
-static int
-__ia32_compare_pp(unsigned int start, unsigned int end)
-{
-	struct ia64_partial_page *pp, *prev;
-	struct rb_node ** rb_link, *rb_parent;
-	unsigned int pstart, start_bit, end_bit, size;
-	unsigned int first_bit, next_zero_bit;	/* the first range in bitmap */
-
-	pstart = PAGE_START(start);
-
-	pp = __ia32_find_pp(current->thread.ppl, pstart, &prev,
-					&rb_link, &rb_parent);
-	if (!pp)
-		return 1;
-
-	start_bit = (start % PAGE_SIZE) / IA32_PAGE_SIZE;
-	end_bit = (end % PAGE_SIZE) / IA32_PAGE_SIZE;
-	size = sizeof(pp->bitmap) * 8;
-	first_bit = find_first_bit(&pp->bitmap, size);
-	next_zero_bit = find_next_zero_bit(&pp->bitmap, size, first_bit);
-	if ((start_bit < first_bit) || (end_bit > next_zero_bit)) {
-		/* exceeds the first range in bitmap */
-		return -ENOMEM;
-	} else if ((start_bit == first_bit) && (end_bit == next_zero_bit)) {
-		first_bit = find_next_bit(&pp->bitmap, size, next_zero_bit);
-		if ((next_zero_bit < first_bit) && (first_bit < size))
-			return 1;	/* has next range */
-		else
-			return 0; 	/* no next range */
-	} else
-		return 1;
-}
-
-/*
- * @start and @end should be IA32 page aligned, but don't need to be in the
- * same IA64 page. Split @start and @end to make sure they're in the same IA64
- * page, then call __ia32_compare_pp().
- *
- * Take this as example: the range is the 1st and 2nd 4K page.
- * Return 0 if they fit bitmap exactly, i.e. bitmap = 00000011;
- * Return 1 if the range doesn't cover whole bitmap, e.g. bitmap = 00001111;
- * Return -ENOMEM if the range exceeds the bitmap, e.g. bitmap = 00000001 or
- * 	bitmap = 00000101.
- */
-static int
-ia32_compare_pp(unsigned int *startp, unsigned int *endp)
-{
-	unsigned int start = *startp, end = *endp;
-	int retval = 0;
-
-	down_write(&current->mm->mmap_sem);
-
-	if (end < PAGE_ALIGN(start)) {
-		retval = __ia32_compare_pp(start, end);
-		if (retval == 0) {
-			*startp = PAGE_START(start);
-			*endp = PAGE_ALIGN(end);
-		}
-	} else {
-		if (offset_in_page(start)) {
-			retval = __ia32_compare_pp(start,
-						   PAGE_ALIGN(start));
-			if (retval == 0)
-				*startp = PAGE_START(start);
-			if (retval < 0)
-				goto out;
-		}
-		if (offset_in_page(end)) {
-			retval = __ia32_compare_pp(PAGE_START(end), end);
-			if (retval == 0)
-				*endp = PAGE_ALIGN(end);
-		}
-	}
-
- out:
-	up_write(&current->mm->mmap_sem);
-	return retval;
-}
-
-static void
-__ia32_drop_pp_list(struct ia64_partial_page_list *ppl)
-{
-	struct ia64_partial_page *pp = ppl->pp_head;
-
-	while (pp) {
-		struct ia64_partial_page *next = pp->next;
-		kmem_cache_free(ia64_partial_page_cachep, pp);
-		pp = next;
-	}
-
-	kfree(ppl);
-}
-
-void
-ia32_drop_ia64_partial_page_list(struct task_struct *task)
-{
-	struct ia64_partial_page_list* ppl = task->thread.ppl;
-
-	if (ppl && atomic_dec_and_test(&ppl->pp_count))
-		__ia32_drop_pp_list(ppl);
-}
-
-/*
- * Copy current->thread.ppl to ppl (already initialized).
- */
-static int
-__ia32_copy_pp_list(struct ia64_partial_page_list *ppl)
-{
-	struct ia64_partial_page *pp, *tmp, *prev;
-	struct rb_node **rb_link, *rb_parent;
-
-	ppl->pp_head = NULL;
-	ppl->pp_hint = NULL;
-	ppl->ppl_rb = RB_ROOT;
-	rb_link = &ppl->ppl_rb.rb_node;
-	rb_parent = NULL;
-	prev = NULL;
-
-	for (pp = current->thread.ppl->pp_head; pp; pp = pp->next) {
-		tmp = kmem_cache_alloc(ia64_partial_page_cachep, GFP_KERNEL);
-		if (!tmp)
-			return -ENOMEM;
-		*tmp = *pp;
-		__ia32_insert_pp(ppl, tmp, prev, rb_link, rb_parent);
-		prev = tmp;
-		rb_link = &tmp->pp_rb.rb_right;
-		rb_parent = &tmp->pp_rb;
-	}
-	return 0;
-}
-
-int
-ia32_copy_ia64_partial_page_list(struct task_struct *p,
-				unsigned long clone_flags)
-{
-	int retval = 0;
-
-	if (clone_flags & CLONE_VM) {
-		atomic_inc(&current->thread.ppl->pp_count);
-		p->thread.ppl = current->thread.ppl;
-	} else {
-		p->thread.ppl = ia32_init_pp_list();
-		if (!p->thread.ppl)
-			return -ENOMEM;
-		down_write(&current->mm->mmap_sem);
-		{
-			retval = __ia32_copy_pp_list(p->thread.ppl);
-		}
-		up_write(&current->mm->mmap_sem);
-	}
-
-	return retval;
-}
-
-static unsigned long
-emulate_mmap (struct file *file, unsigned long start, unsigned long len, int prot, int flags,
-	      loff_t off)
-{
-	unsigned long tmp, end, pend, pstart, ret, is_congruent, fudge = 0;
-	struct inode *inode;
-	loff_t poff;
-
-	end = start + len;
-	pstart = PAGE_START(start);
-	pend = PAGE_ALIGN(end);
-
-	if (flags & MAP_FIXED) {
-		ia32_set_pp((unsigned int)start, (unsigned int)end, flags);
-		if (start > pstart) {
-			if (flags & MAP_SHARED)
-				printk(KERN_INFO
-				       "%s(%d): emulate_mmap() can't share head (addr=0x%lx)\n",
-				       current->comm, task_pid_nr(current), start);
-			ret = mmap_subpage(file, start, min(PAGE_ALIGN(start), end), prot, flags,
-					   off);
-			if (IS_ERR((void *) ret))
-				return ret;
-			pstart += PAGE_SIZE;
-			if (pstart >= pend)
-				goto out;	/* done */
-		}
-		if (end < pend) {
-			if (flags & MAP_SHARED)
-				printk(KERN_INFO
-				       "%s(%d): emulate_mmap() can't share tail (end=0x%lx)\n",
-				       current->comm, task_pid_nr(current), end);
-			ret = mmap_subpage(file, max(start, PAGE_START(end)), end, prot, flags,
-					   (off + len) - offset_in_page(end));
-			if (IS_ERR((void *) ret))
-				return ret;
-			pend -= PAGE_SIZE;
-			if (pstart >= pend)
-				goto out;	/* done */
-		}
-	} else {
-		/*
-		 * If a start address was specified, use it if the entire rounded out area
-		 * is available.
-		 */
-		if (start && !pstart)
-			fudge = 1;	/* handle case of mapping to range (0,PAGE_SIZE) */
-		tmp = arch_get_unmapped_area(file, pstart - fudge, pend - pstart, 0, flags);
-		if (tmp != pstart) {
-			pstart = tmp;
-			start = pstart + offset_in_page(off);	/* make start congruent with off */
-			end = start + len;
-			pend = PAGE_ALIGN(end);
-		}
-	}
-
-	poff = off + (pstart - start);	/* note: (pstart - start) may be negative */
-	is_congruent = (flags & MAP_ANONYMOUS) || (offset_in_page(poff) == 0);
-
-	if ((flags & MAP_SHARED) && !is_congruent)
-		printk(KERN_INFO "%s(%d): emulate_mmap() can't share contents of incongruent mmap "
-		       "(addr=0x%lx,off=0x%llx)\n", current->comm, task_pid_nr(current), start, off);
-
-	DBG("mmap_body: mapping [0x%lx-0x%lx) %s with poff 0x%llx\n", pstart, pend,
-	    is_congruent ? "congruent" : "not congruent", poff);
-
-	down_write(&current->mm->mmap_sem);
-	{
-		if (!(flags & MAP_ANONYMOUS) && is_congruent)
-			ret = do_mmap(file, pstart, pend - pstart, prot, flags | MAP_FIXED, poff);
-		else
-			ret = do_mmap(NULL, pstart, pend - pstart,
-				      prot | ((flags & MAP_ANONYMOUS) ? 0 : PROT_WRITE),
-				      flags | MAP_FIXED | MAP_ANONYMOUS, 0);
-	}
-	up_write(&current->mm->mmap_sem);
-
-	if (IS_ERR((void *) ret))
-		return ret;
-
-	if (!is_congruent) {
-		/* read the file contents */
-		inode = file->f_path.dentry->d_inode;
-		if (!inode->i_fop || !file->f_op->read
-		    || ((*file->f_op->read)(file, (char __user *) pstart, pend - pstart, &poff)
-			< 0))
-		{
-			sys_munmap(pstart, pend - pstart);
-			return -EINVAL;
-		}
-		if (!(prot & PROT_WRITE) && sys_mprotect(pstart, pend - pstart, prot) < 0)
-			return -EINVAL;
-	}
-
-	if (!(flags & MAP_FIXED))
-		ia32_set_pp((unsigned int)start, (unsigned int)end, flags);
-out:
-	return start;
-}
-
-#endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */
-
-static inline unsigned int
-get_prot32 (unsigned int prot)
-{
-	if (prot & PROT_WRITE)
-		/* on x86, PROT_WRITE implies PROT_READ which implies PROT_EEC */
-		prot |= PROT_READ | PROT_WRITE | PROT_EXEC;
-	else if (prot & (PROT_READ | PROT_EXEC))
-		/* on x86, there is no distinction between PROT_READ and PROT_EXEC */
-		prot |= (PROT_READ | PROT_EXEC);
-
-	return prot;
-}
-
-unsigned long
-ia32_do_mmap (struct file *file, unsigned long addr, unsigned long len, int prot, int flags,
-	      loff_t offset)
-{
-	DBG("ia32_do_mmap(file=%p,addr=0x%lx,len=0x%lx,prot=%x,flags=%x,offset=0x%llx)\n",
-	    file, addr, len, prot, flags, offset);
-
-	if (file && (!file->f_op || !file->f_op->mmap))
-		return -ENODEV;
-
-	len = IA32_PAGE_ALIGN(len);
-	if (len == 0)
-		return addr;
-
-	if (len > IA32_PAGE_OFFSET || addr > IA32_PAGE_OFFSET - len)
-	{
-		if (flags & MAP_FIXED)
-			return -ENOMEM;
-		else
-		return -EINVAL;
-	}
-
-	if (OFFSET4K(offset))
-		return -EINVAL;
-
-	prot = get_prot32(prot);
-
-	if (flags & MAP_HUGETLB)
-		return -ENOMEM;
-
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-	mutex_lock(&ia32_mmap_mutex);
-	{
-		addr = emulate_mmap(file, addr, len, prot, flags, offset);
-	}
-	mutex_unlock(&ia32_mmap_mutex);
-#else
-	down_write(&current->mm->mmap_sem);
-	{
-		addr = do_mmap(file, addr, len, prot, flags, offset);
-	}
-	up_write(&current->mm->mmap_sem);
-#endif
-	DBG("ia32_do_mmap: returning 0x%lx\n", addr);
-	return addr;
-}
-
-/*
- * Linux/i386 didn't use to be able to handle more than 4 system call parameters, so these
- * system calls used a memory block for parameter passing..
- */
-
-struct mmap_arg_struct {
-	unsigned int addr;
-	unsigned int len;
-	unsigned int prot;
-	unsigned int flags;
-	unsigned int fd;
-	unsigned int offset;
-};
-
-asmlinkage long
-sys32_mmap (struct mmap_arg_struct __user *arg)
-{
-	struct mmap_arg_struct a;
-	struct file *file = NULL;
-	unsigned long addr;
-	int flags;
-
-	if (copy_from_user(&a, arg, sizeof(a)))
-		return -EFAULT;
-
-	if (OFFSET4K(a.offset))
-		return -EINVAL;
-
-	flags = a.flags;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(a.fd);
-		if (!file)
-			return -EBADF;
-	}
-
-	addr = ia32_do_mmap(file, a.addr, a.len, a.prot, flags, a.offset);
-
-	if (file)
-		fput(file);
-	return addr;
-}
-
-asmlinkage long
-sys32_mmap2 (unsigned int addr, unsigned int len, unsigned int prot, unsigned int flags,
-	     unsigned int fd, unsigned int pgoff)
-{
-	struct file *file = NULL;
-	unsigned long retval;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			return -EBADF;
-	}
-
-	retval = ia32_do_mmap(file, addr, len, prot, flags,
-			      (unsigned long) pgoff << IA32_PAGE_SHIFT);
-
-	if (file)
-		fput(file);
-	return retval;
-}
-
-asmlinkage long
-sys32_munmap (unsigned int start, unsigned int len)
-{
-	unsigned int end = start + len;
-	long ret;
-
-#if PAGE_SHIFT <= IA32_PAGE_SHIFT
-	ret = sys_munmap(start, end - start);
-#else
-	if (OFFSET4K(start))
-		return -EINVAL;
-
-	end = IA32_PAGE_ALIGN(end);
-	if (start >= end)
-		return -EINVAL;
-
-	ret = ia32_unset_pp(&start, &end);
-	if (ret < 0)
-		return ret;
-
-	if (start >= end)
-		return 0;
-
-	mutex_lock(&ia32_mmap_mutex);
-	ret = sys_munmap(start, end - start);
-	mutex_unlock(&ia32_mmap_mutex);
-#endif
-	return ret;
-}
-
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-
-/*
- * When mprotect()ing a partial page, we set the permission to the union of the old
- * settings and the new settings.  In other words, it's only possible to make access to a
- * partial page less restrictive.
- */
-static long
-mprotect_subpage (unsigned long address, int new_prot)
-{
-	int old_prot;
-	struct vm_area_struct *vma;
-
-	if (new_prot == PROT_NONE)
-		return 0;		/* optimize case where nothing changes... */
-	vma = find_vma(current->mm, address);
-	old_prot = get_page_prot(vma, address);
-	return sys_mprotect(address, PAGE_SIZE, new_prot | old_prot);
-}
-
-#endif /* PAGE_SHIFT > IA32_PAGE_SHIFT */
-
-asmlinkage long
-sys32_mprotect (unsigned int start, unsigned int len, int prot)
-{
-	unsigned int end = start + len;
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-	long retval = 0;
-#endif
-
-	prot = get_prot32(prot);
-
-#if PAGE_SHIFT <= IA32_PAGE_SHIFT
-	return sys_mprotect(start, end - start, prot);
-#else
-	if (OFFSET4K(start))
-		return -EINVAL;
-
-	end = IA32_PAGE_ALIGN(end);
-	if (end < start)
-		return -EINVAL;
-
-	retval = ia32_compare_pp(&start, &end);
-
-	if (retval < 0)
-		return retval;
-
-	mutex_lock(&ia32_mmap_mutex);
-	{
-		if (offset_in_page(start)) {
-			/* start address is 4KB aligned but not page aligned. */
-			retval = mprotect_subpage(PAGE_START(start), prot);
-			if (retval < 0)
-				goto out;
-
-			start = PAGE_ALIGN(start);
-			if (start >= end)
-				goto out;	/* retval is already zero... */
-		}
-
-		if (offset_in_page(end)) {
-			/* end address is 4KB aligned but not page aligned. */
-			retval = mprotect_subpage(PAGE_START(end), prot);
-			if (retval < 0)
-				goto out;
-
-			end = PAGE_START(end);
-		}
-		retval = sys_mprotect(start, end - start, prot);
-	}
-  out:
-	mutex_unlock(&ia32_mmap_mutex);
-	return retval;
-#endif
-}
-
-asmlinkage long
-sys32_mremap (unsigned int addr, unsigned int old_len, unsigned int new_len,
-		unsigned int flags, unsigned int new_addr)
-{
-	long ret;
-
-#if PAGE_SHIFT <= IA32_PAGE_SHIFT
-	ret = sys_mremap(addr, old_len, new_len, flags, new_addr);
-#else
-	unsigned int old_end, new_end;
-
-	if (OFFSET4K(addr))
-		return -EINVAL;
-
-	old_len = IA32_PAGE_ALIGN(old_len);
-	new_len = IA32_PAGE_ALIGN(new_len);
-	old_end = addr + old_len;
-	new_end = addr + new_len;
-
-	if (!new_len)
-		return -EINVAL;
-
-	if ((flags & MREMAP_FIXED) && (OFFSET4K(new_addr)))
-		return -EINVAL;
-
-	if (old_len >= new_len) {
-		ret = sys32_munmap(addr + new_len, old_len - new_len);
-		if (ret && old_len != new_len)
-			return ret;
-		ret = addr;
-		if (!(flags & MREMAP_FIXED) || (new_addr == addr))
-			return ret;
-		old_len = new_len;
-	}
-
-	addr = PAGE_START(addr);
-	old_len = PAGE_ALIGN(old_end) - addr;
-	new_len = PAGE_ALIGN(new_end) - addr;
-
-	mutex_lock(&ia32_mmap_mutex);
-	ret = sys_mremap(addr, old_len, new_len, flags, new_addr);
-	mutex_unlock(&ia32_mmap_mutex);
-
-	if ((ret >= 0) && (old_len < new_len)) {
-		/* mremap expanded successfully */
-		ia32_set_pp(old_end, new_end, flags);
-	}
-#endif
-	return ret;
-}
-
-asmlinkage unsigned long
-sys32_alarm (unsigned int seconds)
-{
-	return alarm_setitimer(seconds);
-}
-
-struct sel_arg_struct {
-	unsigned int n;
-	unsigned int inp;
-	unsigned int outp;
-	unsigned int exp;
-	unsigned int tvp;
-};
-
-asmlinkage long
-sys32_old_select (struct sel_arg_struct __user *arg)
-{
-	struct sel_arg_struct a;
-
-	if (copy_from_user(&a, arg, sizeof(a)))
-		return -EFAULT;
-	return compat_sys_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp),
-				 compat_ptr(a.exp), compat_ptr(a.tvp));
-}
-
-#define SEMOP		 1
-#define SEMGET		 2
-#define SEMCTL		 3
-#define SEMTIMEDOP	 4
-#define MSGSND		11
-#define MSGRCV		12
-#define MSGGET		13
-#define MSGCTL		14
-#define SHMAT		21
-#define SHMDT		22
-#define SHMGET		23
-#define SHMCTL		24
-
-asmlinkage long
-sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
-{
-	int version;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	      case SEMTIMEDOP:
-		if (fifth)
-			return compat_sys_semtimedop(first, compat_ptr(ptr),
-				second, compat_ptr(fifth));
-		/* else fall through for normal semop() */
-	      case SEMOP:
-		/* struct sembuf is the same on 32 and 64bit :)) */
-		return sys_semtimedop(first, compat_ptr(ptr), second,
-				      NULL);
-	      case SEMGET:
-		return sys_semget(first, second, third);
-	      case SEMCTL:
-		return compat_sys_semctl(first, second, third, compat_ptr(ptr));
-
-	      case MSGSND:
-		return compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
-	      case MSGRCV:
-		return compat_sys_msgrcv(first, second, fifth, third, version, compat_ptr(ptr));
-	      case MSGGET:
-		return sys_msgget((key_t) first, second);
-	      case MSGCTL:
-		return compat_sys_msgctl(first, second, compat_ptr(ptr));
-
-	      case SHMAT:
-		return compat_sys_shmat(first, second, third, version, compat_ptr(ptr));
-		break;
-	      case SHMDT:
-		return sys_shmdt(compat_ptr(ptr));
-	      case SHMGET:
-		return sys_shmget(first, (unsigned)second, third);
-	      case SHMCTL:
-		return compat_sys_shmctl(first, second, compat_ptr(ptr));
-
-	      default:
-		return -ENOSYS;
-	}
-	return -EINVAL;
-}
-
-asmlinkage long
-compat_sys_wait4 (compat_pid_t pid, compat_uint_t * stat_addr, int options,
-		 struct compat_rusage *ru);
-
-asmlinkage long
-sys32_waitpid (int pid, unsigned int *stat_addr, int options)
-{
-	return compat_sys_wait4(pid, stat_addr, options, NULL);
-}
-
-/*
- *  The order in which registers are stored in the ptrace regs structure
- */
-#define PT_EBX	0
-#define PT_ECX	1
-#define PT_EDX	2
-#define PT_ESI	3
-#define PT_EDI	4
-#define PT_EBP	5
-#define PT_EAX	6
-#define PT_DS	7
-#define PT_ES	8
-#define PT_FS	9
-#define PT_GS	10
-#define PT_ORIG_EAX 11
-#define PT_EIP	12
-#define PT_CS	13
-#define PT_EFL	14
-#define PT_UESP	15
-#define PT_SS	16
-
-static unsigned int
-getreg (struct task_struct *child, int regno)
-{
-	struct pt_regs *child_regs;
-
-	child_regs = task_pt_regs(child);
-	switch (regno / sizeof(int)) {
-	      case PT_EBX: return child_regs->r11;
-	      case PT_ECX: return child_regs->r9;
-	      case PT_EDX: return child_regs->r10;
-	      case PT_ESI: return child_regs->r14;
-	      case PT_EDI: return child_regs->r15;
-	      case PT_EBP: return child_regs->r13;
-	      case PT_EAX: return child_regs->r8;
-	      case PT_ORIG_EAX: return child_regs->r1; /* see dispatch_to_ia32_handler() */
-	      case PT_EIP: return child_regs->cr_iip;
-	      case PT_UESP: return child_regs->r12;
-	      case PT_EFL: return child->thread.eflag;
-	      case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS:
-		return __USER_DS;
-	      case PT_CS: return __USER_CS;
-	      default:
-		printk(KERN_ERR "ia32.getreg(): unknown register %d\n", regno);
-		break;
-	}
-	return 0;
-}
-
-static void
-putreg (struct task_struct *child, int regno, unsigned int value)
-{
-	struct pt_regs *child_regs;
-
-	child_regs = task_pt_regs(child);
-	switch (regno / sizeof(int)) {
-	      case PT_EBX: child_regs->r11 = value; break;
-	      case PT_ECX: child_regs->r9 = value; break;
-	      case PT_EDX: child_regs->r10 = value; break;
-	      case PT_ESI: child_regs->r14 = value; break;
-	      case PT_EDI: child_regs->r15 = value; break;
-	      case PT_EBP: child_regs->r13 = value; break;
-	      case PT_EAX: child_regs->r8 = value; break;
-	      case PT_ORIG_EAX: child_regs->r1 = value; break;
-	      case PT_EIP: child_regs->cr_iip = value; break;
-	      case PT_UESP: child_regs->r12 = value; break;
-	      case PT_EFL: child->thread.eflag = value; break;
-	      case PT_DS: case PT_ES: case PT_FS: case PT_GS: case PT_SS:
-		if (value != __USER_DS)
-			printk(KERN_ERR
-			       "ia32.putreg: attempt to set invalid segment register %d = %x\n",
-			       regno, value);
-		break;
-	      case PT_CS:
-		if (value != __USER_CS)
-			printk(KERN_ERR
-			       "ia32.putreg: attempt to set invalid segment register %d = %x\n",
-			       regno, value);
-		break;
-	      default:
-		printk(KERN_ERR "ia32.putreg: unknown register %d\n", regno);
-		break;
-	}
-}
-
-static void
-put_fpreg (int regno, struct _fpreg_ia32 __user *reg, struct pt_regs *ptp,
-	   struct switch_stack *swp, int tos)
-{
-	struct _fpreg_ia32 *f;
-	char buf[32];
-
-	f = (struct _fpreg_ia32 *)(((unsigned long)buf + 15) & ~15);
-	if ((regno += tos) >= 8)
-		regno -= 8;
-	switch (regno) {
-	      case 0:
-		ia64f2ia32f(f, &ptp->f8);
-		break;
-	      case 1:
-		ia64f2ia32f(f, &ptp->f9);
-		break;
-	      case 2:
-		ia64f2ia32f(f, &ptp->f10);
-		break;
-	      case 3:
-		ia64f2ia32f(f, &ptp->f11);
-		break;
-	      case 4:
-	      case 5:
-	      case 6:
-	      case 7:
-		ia64f2ia32f(f, &swp->f12 + (regno - 4));
-		break;
-	}
-	copy_to_user(reg, f, sizeof(*reg));
-}
-
-static void
-get_fpreg (int regno, struct _fpreg_ia32 __user *reg, struct pt_regs *ptp,
-	   struct switch_stack *swp, int tos)
-{
-
-	if ((regno += tos) >= 8)
-		regno -= 8;
-	switch (regno) {
-	      case 0:
-		copy_from_user(&ptp->f8, reg, sizeof(*reg));
-		break;
-	      case 1:
-		copy_from_user(&ptp->f9, reg, sizeof(*reg));
-		break;
-	      case 2:
-		copy_from_user(&ptp->f10, reg, sizeof(*reg));
-		break;
-	      case 3:
-		copy_from_user(&ptp->f11, reg, sizeof(*reg));
-		break;
-	      case 4:
-	      case 5:
-	      case 6:
-	      case 7:
-		copy_from_user(&swp->f12 + (regno - 4), reg, sizeof(*reg));
-		break;
-	}
-	return;
-}
-
-int
-save_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct __user *save)
-{
-	struct switch_stack *swp;
-	struct pt_regs *ptp;
-	int i, tos;
-
-	if (!access_ok(VERIFY_WRITE, save, sizeof(*save)))
-		return -EFAULT;
-
-	__put_user(tsk->thread.fcr & 0xffff, &save->cwd);
-	__put_user(tsk->thread.fsr & 0xffff, &save->swd);
-	__put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd);
-	__put_user(tsk->thread.fir, &save->fip);
-	__put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs);
-	__put_user(tsk->thread.fdr, &save->foo);
-	__put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos);
-
-	/*
-	 *  Stack frames start with 16-bytes of temp space
-	 */
-	swp = (struct switch_stack *)(tsk->thread.ksp + 16);
-	ptp = task_pt_regs(tsk);
-	tos = (tsk->thread.fsr >> 11) & 7;
-	for (i = 0; i < 8; i++)
-		put_fpreg(i, &save->st_space[i], ptp, swp, tos);
-	return 0;
-}
-
-static int
-restore_ia32_fpstate (struct task_struct *tsk, struct ia32_user_i387_struct __user *save)
-{
-	struct switch_stack *swp;
-	struct pt_regs *ptp;
-	int i, tos;
-	unsigned int fsrlo, fsrhi, num32;
-
-	if (!access_ok(VERIFY_READ, save, sizeof(*save)))
-		return(-EFAULT);
-
-	__get_user(num32, (unsigned int __user *)&save->cwd);
-	tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f);
-	__get_user(fsrlo, (unsigned int __user *)&save->swd);
-	__get_user(fsrhi, (unsigned int __user *)&save->twd);
-	num32 = (fsrhi << 16) | fsrlo;
-	tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32;
-	__get_user(num32, (unsigned int __user *)&save->fip);
-	tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32;
-	__get_user(num32, (unsigned int __user *)&save->foo);
-	tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32;
-
-	/*
-	 *  Stack frames start with 16-bytes of temp space
-	 */
-	swp = (struct switch_stack *)(tsk->thread.ksp + 16);
-	ptp = task_pt_regs(tsk);
-	tos = (tsk->thread.fsr >> 11) & 7;
-	for (i = 0; i < 8; i++)
-		get_fpreg(i, &save->st_space[i], ptp, swp, tos);
-	return 0;
-}
-
-int
-save_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct __user *save)
-{
-	struct switch_stack *swp;
-	struct pt_regs *ptp;
-	int i, tos;
-	unsigned long mxcsr=0;
-	unsigned long num128[2];
-
-	if (!access_ok(VERIFY_WRITE, save, sizeof(*save)))
-		return -EFAULT;
-
-	__put_user(tsk->thread.fcr & 0xffff, &save->cwd);
-	__put_user(tsk->thread.fsr & 0xffff, &save->swd);
-	__put_user((tsk->thread.fsr>>16) & 0xffff, &save->twd);
-	__put_user(tsk->thread.fir, &save->fip);
-	__put_user((tsk->thread.fir>>32) & 0xffff, &save->fcs);
-	__put_user(tsk->thread.fdr, &save->foo);
-	__put_user((tsk->thread.fdr>>32) & 0xffff, &save->fos);
-
-        /*
-         *  Stack frames start with 16-bytes of temp space
-         */
-        swp = (struct switch_stack *)(tsk->thread.ksp + 16);
-        ptp = task_pt_regs(tsk);
-	tos = (tsk->thread.fsr >> 11) & 7;
-        for (i = 0; i < 8; i++)
-		put_fpreg(i, (struct _fpreg_ia32 __user *)&save->st_space[4*i], ptp, swp, tos);
-
-	mxcsr = ((tsk->thread.fcr>>32) & 0xff80) | ((tsk->thread.fsr>>32) & 0x3f);
-	__put_user(mxcsr & 0xffff, &save->mxcsr);
-	for (i = 0; i < 8; i++) {
-		memcpy(&(num128[0]), &(swp->f16) + i*2, sizeof(unsigned long));
-		memcpy(&(num128[1]), &(swp->f17) + i*2, sizeof(unsigned long));
-		copy_to_user(&save->xmm_space[0] + 4*i, num128, sizeof(struct _xmmreg_ia32));
-	}
-	return 0;
-}
-
-static int
-restore_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct __user *save)
-{
-	struct switch_stack *swp;
-	struct pt_regs *ptp;
-	int i, tos;
-	unsigned int fsrlo, fsrhi, num32;
-	int mxcsr;
-	unsigned long num64;
-	unsigned long num128[2];
-
-	if (!access_ok(VERIFY_READ, save, sizeof(*save)))
-		return(-EFAULT);
-
-	__get_user(num32, (unsigned int __user *)&save->cwd);
-	tsk->thread.fcr = (tsk->thread.fcr & (~0x1f3f)) | (num32 & 0x1f3f);
-	__get_user(fsrlo, (unsigned int __user *)&save->swd);
-	__get_user(fsrhi, (unsigned int __user *)&save->twd);
-	num32 = (fsrhi << 16) | fsrlo;
-	tsk->thread.fsr = (tsk->thread.fsr & (~0xffffffff)) | num32;
-	__get_user(num32, (unsigned int __user *)&save->fip);
-	tsk->thread.fir = (tsk->thread.fir & (~0xffffffff)) | num32;
-	__get_user(num32, (unsigned int __user *)&save->foo);
-	tsk->thread.fdr = (tsk->thread.fdr & (~0xffffffff)) | num32;
-
-	/*
-	 *  Stack frames start with 16-bytes of temp space
-	 */
-	swp = (struct switch_stack *)(tsk->thread.ksp + 16);
-	ptp = task_pt_regs(tsk);
-	tos = (tsk->thread.fsr >> 11) & 7;
-	for (i = 0; i < 8; i++)
-	get_fpreg(i, (struct _fpreg_ia32 __user *)&save->st_space[4*i], ptp, swp, tos);
-
-	__get_user(mxcsr, (unsigned int __user *)&save->mxcsr);
-	num64 = mxcsr & 0xff10;
-	tsk->thread.fcr = (tsk->thread.fcr & (~0xff1000000000UL)) | (num64<<32);
-	num64 = mxcsr & 0x3f;
-	tsk->thread.fsr = (tsk->thread.fsr & (~0x3f00000000UL)) | (num64<<32);
-
-	for (i = 0; i < 8; i++) {
-		copy_from_user(num128, &save->xmm_space[0] + 4*i, sizeof(struct _xmmreg_ia32));
-		memcpy(&(swp->f16) + i*2, &(num128[0]), sizeof(unsigned long));
-		memcpy(&(swp->f17) + i*2, &(num128[1]), sizeof(unsigned long));
-	}
-	return 0;
-}
-
-long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
-	compat_ulong_t caddr, compat_ulong_t cdata)
-{
-	unsigned long addr = caddr;
-	unsigned long data = cdata;
-	unsigned int tmp;
-	long i, ret;
-
-	switch (request) {
-	      case PTRACE_PEEKUSR:	/* read word at addr in USER area */
-		ret = -EIO;
-		if ((addr & 3) || addr > 17*sizeof(int))
-			break;
-
-		tmp = getreg(child, addr);
-		if (!put_user(tmp, (unsigned int __user *) compat_ptr(data)))
-			ret = 0;
-		break;
-
-	      case PTRACE_POKEUSR:	/* write word at addr in USER area */
-		ret = -EIO;
-		if ((addr & 3) || addr > 17*sizeof(int))
-			break;
-
-		putreg(child, addr, data);
-		ret = 0;
-		break;
-
-	      case IA32_PTRACE_GETREGS:
-		if (!access_ok(VERIFY_WRITE, compat_ptr(data), 17*sizeof(int))) {
-			ret = -EIO;
-			break;
-		}
-		for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
-			put_user(getreg(child, i), (unsigned int __user *) compat_ptr(data));
-			data += sizeof(int);
-		}
-		ret = 0;
-		break;
-
-	      case IA32_PTRACE_SETREGS:
-		if (!access_ok(VERIFY_READ, compat_ptr(data), 17*sizeof(int))) {
-			ret = -EIO;
-			break;
-		}
-		for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
-			get_user(tmp, (unsigned int __user *) compat_ptr(data));
-			putreg(child, i, tmp);
-			data += sizeof(int);
-		}
-		ret = 0;
-		break;
-
-	      case IA32_PTRACE_GETFPREGS:
-		ret = save_ia32_fpstate(child, (struct ia32_user_i387_struct __user *)
-					compat_ptr(data));
-		break;
-
-	      case IA32_PTRACE_GETFPXREGS:
-		ret = save_ia32_fpxstate(child, (struct ia32_user_fxsr_struct __user *)
-					 compat_ptr(data));
-		break;
-
-	      case IA32_PTRACE_SETFPREGS:
-		ret = restore_ia32_fpstate(child, (struct ia32_user_i387_struct __user *)
-					   compat_ptr(data));
-		break;
-
-	      case IA32_PTRACE_SETFPXREGS:
-		ret = restore_ia32_fpxstate(child, (struct ia32_user_fxsr_struct __user *)
-					    compat_ptr(data));
-		break;
-
-	      default:
-		return compat_ptrace_request(child, request, caddr, cdata);
-	}
-	return ret;
-}
-
-typedef struct {
-	unsigned int	ss_sp;
-	unsigned int	ss_flags;
-	unsigned int	ss_size;
-} ia32_stack_t;
-
-asmlinkage long
-sys32_sigaltstack (ia32_stack_t __user *uss32, ia32_stack_t __user *uoss32,
-		   long arg2, long arg3, long arg4, long arg5, long arg6,
-		   long arg7, struct pt_regs pt)
-{
-	stack_t uss, uoss;
-	ia32_stack_t buf32;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	if (uss32) {
-		if (copy_from_user(&buf32, uss32, sizeof(ia32_stack_t)))
-			return -EFAULT;
-		uss.ss_sp = (void __user *) (long) buf32.ss_sp;
-		uss.ss_flags = buf32.ss_flags;
-		/* MINSIGSTKSZ is different for ia32 vs ia64. We lie here to pass the
-	           check and set it to the user requested value later */
-		if ((buf32.ss_flags != SS_DISABLE) && (buf32.ss_size < MINSIGSTKSZ_IA32)) {
-			ret = -ENOMEM;
-			goto out;
-		}
-		uss.ss_size = MINSIGSTKSZ;
-	}
-	set_fs(KERNEL_DS);
-	ret = do_sigaltstack(uss32 ? (stack_t __user *) &uss : NULL,
-			     (stack_t __user *) &uoss, pt.r12);
- 	current->sas_ss_size = buf32.ss_size;
-	set_fs(old_fs);
-out:
-	if (ret < 0)
-		return(ret);
-	if (uoss32) {
-		buf32.ss_sp = (long __user) uoss.ss_sp;
-		buf32.ss_flags = uoss.ss_flags;
-		buf32.ss_size = uoss.ss_size;
-		if (copy_to_user(uoss32, &buf32, sizeof(ia32_stack_t)))
-			return -EFAULT;
-	}
-	return ret;
-}
-
-asmlinkage int
-sys32_msync (unsigned int start, unsigned int len, int flags)
-{
-	unsigned int addr;
-
-	if (OFFSET4K(start))
-		return -EINVAL;
-	addr = PAGE_START(start);
-	return sys_msync(addr, len + (start - addr), flags);
-}
-
-asmlinkage long
-sys32_newuname (struct new_utsname __user *name)
-{
-	int ret = sys_newuname(name);
-
-	if (!ret)
-		if (copy_to_user(name->machine, "i686\0\0\0", 8))
-			ret = -EFAULT;
-	return ret;
-}
-
-asmlinkage long
-sys32_getresuid16 (u16 __user *ruid, u16 __user *euid, u16 __user *suid)
-{
-	uid_t a, b, c;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_getresuid((uid_t __user *) &a, (uid_t __user *) &b, (uid_t __user *) &c);
-	set_fs(old_fs);
-
-	if (put_user(a, ruid) || put_user(b, euid) || put_user(c, suid))
-		return -EFAULT;
-	return ret;
-}
-
-asmlinkage long
-sys32_getresgid16 (u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
-{
-	gid_t a, b, c;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_getresgid((gid_t __user *) &a, (gid_t __user *) &b, (gid_t __user *) &c);
-	set_fs(old_fs);
-
-	if (ret)
-		return ret;
-
-	return put_user(a, rgid) | put_user(b, egid) | put_user(c, sgid);
-}
-
-asmlinkage long
-sys32_lseek (unsigned int fd, int offset, unsigned int whence)
-{
-	/* Sign-extension of "offset" is important here... */
-	return sys_lseek(fd, offset, whence);
-}
-
-static int
-groups16_to_user(short __user *grouplist, struct group_info *group_info)
-{
-	int i;
-	short group;
-
-	for (i = 0; i < group_info->ngroups; i++) {
-		group = (short)GROUP_AT(group_info, i);
-		if (put_user(group, grouplist+i))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int
-groups16_from_user(struct group_info *group_info, short __user *grouplist)
-{
-	int i;
-	short group;
-
-	for (i = 0; i < group_info->ngroups; i++) {
-		if (get_user(group, grouplist+i))
-			return  -EFAULT;
-		GROUP_AT(group_info, i) = (gid_t)group;
-	}
-
-	return 0;
-}
-
-asmlinkage long
-sys32_getgroups16 (int gidsetsize, short __user *grouplist)
-{
-	const struct cred *cred = current_cred();
-	int i;
-
-	if (gidsetsize < 0)
-		return -EINVAL;
-
-	i = cred->group_info->ngroups;
-	if (gidsetsize) {
-		if (i > gidsetsize) {
-			i = -EINVAL;
-			goto out;
-		}
-		if (groups16_to_user(grouplist, cred->group_info)) {
-			i = -EFAULT;
-			goto out;
-		}
-	}
-out:
-	return i;
-}
-
-asmlinkage long
-sys32_setgroups16 (int gidsetsize, short __user *grouplist)
-{
-	struct group_info *group_info;
-	int retval;
-
-	if (!capable(CAP_SETGID))
-		return -EPERM;
-	if ((unsigned)gidsetsize > NGROUPS_MAX)
-		return -EINVAL;
-
-	group_info = groups_alloc(gidsetsize);
-	if (!group_info)
-		return -ENOMEM;
-	retval = groups16_from_user(group_info, grouplist);
-	if (retval) {
-		put_group_info(group_info);
-		return retval;
-	}
-
-	retval = set_current_groups(group_info);
-	put_group_info(group_info);
-
-	return retval;
-}
-
-asmlinkage long
-sys32_truncate64 (unsigned int path, unsigned int len_lo, unsigned int len_hi)
-{
-	return sys_truncate(compat_ptr(path), ((unsigned long) len_hi << 32) | len_lo);
-}
-
-asmlinkage long
-sys32_ftruncate64 (int fd, unsigned int len_lo, unsigned int len_hi)
-{
-	return sys_ftruncate(fd, ((unsigned long) len_hi << 32) | len_lo);
-}
-
-static int
-putstat64 (struct stat64 __user *ubuf, struct kstat *kbuf)
-{
-	int err;
-	u64 hdev;
-
-	if (clear_user(ubuf, sizeof(*ubuf)))
-		return -EFAULT;
-
-	hdev = huge_encode_dev(kbuf->dev);
-	err  = __put_user(hdev, (u32 __user*)&ubuf->st_dev);
-	err |= __put_user(hdev >> 32, ((u32 __user*)&ubuf->st_dev) + 1);
-	err |= __put_user(kbuf->ino, &ubuf->__st_ino);
-	err |= __put_user(kbuf->ino, &ubuf->st_ino_lo);
-	err |= __put_user(kbuf->ino >> 32, &ubuf->st_ino_hi);
-	err |= __put_user(kbuf->mode, &ubuf->st_mode);
-	err |= __put_user(kbuf->nlink, &ubuf->st_nlink);
-	err |= __put_user(kbuf->uid, &ubuf->st_uid);
-	err |= __put_user(kbuf->gid, &ubuf->st_gid);
-	hdev = huge_encode_dev(kbuf->rdev);
-	err  = __put_user(hdev, (u32 __user*)&ubuf->st_rdev);
-	err |= __put_user(hdev >> 32, ((u32 __user*)&ubuf->st_rdev) + 1);
-	err |= __put_user(kbuf->size, &ubuf->st_size_lo);
-	err |= __put_user((kbuf->size >> 32), &ubuf->st_size_hi);
-	err |= __put_user(kbuf->atime.tv_sec, &ubuf->st_atime);
-	err |= __put_user(kbuf->atime.tv_nsec, &ubuf->st_atime_nsec);
-	err |= __put_user(kbuf->mtime.tv_sec, &ubuf->st_mtime);
-	err |= __put_user(kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec);
-	err |= __put_user(kbuf->ctime.tv_sec, &ubuf->st_ctime);
-	err |= __put_user(kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec);
-	err |= __put_user(kbuf->blksize, &ubuf->st_blksize);
-	err |= __put_user(kbuf->blocks, &ubuf->st_blocks);
-	return err;
-}
-
-asmlinkage long
-sys32_stat64 (char __user *filename, struct stat64 __user *statbuf)
-{
-	struct kstat s;
-	long ret = vfs_stat(filename, &s);
-	if (!ret)
-		ret = putstat64(statbuf, &s);
-	return ret;
-}
-
-asmlinkage long
-sys32_lstat64 (char __user *filename, struct stat64 __user *statbuf)
-{
-	struct kstat s;
-	long ret = vfs_lstat(filename, &s);
-	if (!ret)
-		ret = putstat64(statbuf, &s);
-	return ret;
-}
-
-asmlinkage long
-sys32_fstat64 (unsigned int fd, struct stat64 __user *statbuf)
-{
-	struct kstat s;
-	long ret = vfs_fstat(fd, &s);
-	if (!ret)
-		ret = putstat64(statbuf, &s);
-	return ret;
-}
-
-asmlinkage long
-sys32_sched_rr_get_interval (pid_t pid, struct compat_timespec __user *interval)
-{
-	mm_segment_t old_fs = get_fs();
-	struct timespec t;
-	long ret;
-
-	set_fs(KERNEL_DS);
-	ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
-	set_fs(old_fs);
-	if (put_compat_timespec(&t, interval))
-		return -EFAULT;
-	return ret;
-}
-
-asmlinkage long
-sys32_pread (unsigned int fd, void __user *buf, unsigned int count, u32 pos_lo, u32 pos_hi)
-{
-	return sys_pread64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo);
-}
-
-asmlinkage long
-sys32_pwrite (unsigned int fd, void __user *buf, unsigned int count, u32 pos_lo, u32 pos_hi)
-{
-	return sys_pwrite64(fd, buf, count, ((unsigned long) pos_hi << 32) | pos_lo);
-}
-
-asmlinkage long
-sys32_sendfile (int out_fd, int in_fd, int __user *offset, unsigned int count)
-{
-	mm_segment_t old_fs = get_fs();
-	long ret;
-	off_t of;
-
-	if (offset && get_user(of, offset))
-		return -EFAULT;
-
-	set_fs(KERNEL_DS);
-	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *) &of : NULL, count);
-	set_fs(old_fs);
-
-	if (offset && put_user(of, offset))
-		return -EFAULT;
-
-	return ret;
-}
-
-asmlinkage long
-sys32_personality (unsigned int personality)
-{
-	long ret;
-
-	if (current->personality == PER_LINUX32 && personality == PER_LINUX)
-		personality = PER_LINUX32;
-	ret = sys_personality(personality);
-	if (ret == PER_LINUX32)
-		ret = PER_LINUX;
-	return ret;
-}
-
-asmlinkage unsigned long
-sys32_brk (unsigned int brk)
-{
-	unsigned long ret, obrk;
-	struct mm_struct *mm = current->mm;
-
-	obrk = mm->brk;
-	ret = sys_brk(brk);
-	if (ret < obrk)
-		clear_user(compat_ptr(ret), PAGE_ALIGN(ret) - ret);
-	return ret;
-}
-
-/* Structure for ia32 emulation on ia64 */
-struct epoll_event32
-{
-	u32 events;
-	u32 data[2];
-};
-
-asmlinkage long
-sys32_epoll_ctl(int epfd, int op, int fd, struct epoll_event32 __user *event)
-{
-	mm_segment_t old_fs = get_fs();
-	struct epoll_event event64;
-	int error;
-	u32 data_halfword;
-
-	if (!access_ok(VERIFY_READ, event, sizeof(struct epoll_event32)))
-		return -EFAULT;
-
-	__get_user(event64.events, &event->events);
-	__get_user(data_halfword, &event->data[0]);
-	event64.data = data_halfword;
-	__get_user(data_halfword, &event->data[1]);
- 	event64.data |= (u64)data_halfword << 32;
-
-	set_fs(KERNEL_DS);
-	error = sys_epoll_ctl(epfd, op, fd, (struct epoll_event __user *) &event64);
-	set_fs(old_fs);
-
-	return error;
-}
-
-asmlinkage long
-sys32_epoll_wait(int epfd, struct epoll_event32 __user * events, int maxevents,
-		 int timeout)
-{
-	struct epoll_event *events64 = NULL;
-	mm_segment_t old_fs = get_fs();
-	int numevents, size;
-	int evt_idx;
-	int do_free_pages = 0;
-
-	if (maxevents <= 0) {
-		return -EINVAL;
-	}
-
-	/* Verify that the area passed by the user is writeable */
-	if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event32)))
-		return -EFAULT;
-
-	/*
- 	 * Allocate space for the intermediate copy.  If the space needed
-	 * is large enough to cause kmalloc to fail, then try again with
-	 * __get_free_pages.
-	 */
-	size = maxevents * sizeof(struct epoll_event);
-	events64 = kmalloc(size, GFP_KERNEL);
-	if (events64 == NULL) {
-		events64 = (struct epoll_event *)
-				__get_free_pages(GFP_KERNEL, get_order(size));
-		if (events64 == NULL)
-			return -ENOMEM;
-		do_free_pages = 1;
-	}
-
-	/* Do the system call */
-	set_fs(KERNEL_DS); /* copy_to/from_user should work on kernel mem*/
-	numevents = sys_epoll_wait(epfd, (struct epoll_event __user *) events64,
-				   maxevents, timeout);
-	set_fs(old_fs);
-
-	/* Don't modify userspace memory if we're returning an error */
-	if (numevents > 0) {
-		/* Translate the 64-bit structures back into the 32-bit
-		   structures */
-		for (evt_idx = 0; evt_idx < numevents; evt_idx++) {
-			__put_user(events64[evt_idx].events,
-				   &events[evt_idx].events);
-			__put_user((u32)events64[evt_idx].data,
-				   &events[evt_idx].data[0]);
-			__put_user((u32)(events64[evt_idx].data >> 32),
-				   &events[evt_idx].data[1]);
-		}
-	}
-
-	if (do_free_pages)
-		free_pages((unsigned long) events64, get_order(size));
-	else
-		kfree(events64);
-	return numevents;
-}
-
-/*
- * Get a yet unused TLS descriptor index.
- */
-static int
-get_free_idx (void)
-{
-	struct thread_struct *t = &current->thread;
-	int idx;
-
-	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
-		if (desc_empty(t->tls_array + idx))
-			return idx + GDT_ENTRY_TLS_MIN;
-	return -ESRCH;
-}
-
-static void set_tls_desc(struct task_struct *p, int idx,
-		const struct ia32_user_desc *info, int n)
-{
-	struct thread_struct *t = &p->thread;
-	struct desc_struct *desc = &t->tls_array[idx - GDT_ENTRY_TLS_MIN];
-	int cpu;
-
-	/*
-	 * We must not get preempted while modifying the TLS.
-	 */
-	cpu = get_cpu();
-
-	while (n-- > 0) {
-		if (LDT_empty(info)) {
-			desc->a = 0;
-			desc->b = 0;
-		} else {
-			desc->a = LDT_entry_a(info);
-			desc->b = LDT_entry_b(info);
-		}
-
-		++info;
-		++desc;
-	}
-
-	if (t == &current->thread)
-		load_TLS(t, cpu);
-
-	put_cpu();
-}
-
-/*
- * Set a given TLS descriptor:
- */
-asmlinkage int
-sys32_set_thread_area (struct ia32_user_desc __user *u_info)
-{
-	struct ia32_user_desc info;
-	int idx;
-
-	if (copy_from_user(&info, u_info, sizeof(info)))
-		return -EFAULT;
-	idx = info.entry_number;
-
-	/*
-	 * index -1 means the kernel should try to find and allocate an empty descriptor:
-	 */
-	if (idx == -1) {
-		idx = get_free_idx();
-		if (idx < 0)
-			return idx;
-		if (put_user(idx, &u_info->entry_number))
-			return -EFAULT;
-	}
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	set_tls_desc(current, idx, &info, 1);
-	return 0;
-}
-
-/*
- * Get the current Thread-Local Storage area:
- */
-
-#define GET_BASE(desc) (			\
-	(((desc)->a >> 16) & 0x0000ffff) |	\
-	(((desc)->b << 16) & 0x00ff0000) |	\
-	( (desc)->b        & 0xff000000)   )
-
-#define GET_LIMIT(desc) (			\
-	((desc)->a & 0x0ffff) |			\
-	 ((desc)->b & 0xf0000) )
-
-#define GET_32BIT(desc)		(((desc)->b >> 22) & 1)
-#define GET_CONTENTS(desc)	(((desc)->b >> 10) & 3)
-#define GET_WRITABLE(desc)	(((desc)->b >>  9) & 1)
-#define GET_LIMIT_PAGES(desc)	(((desc)->b >> 23) & 1)
-#define GET_PRESENT(desc)	(((desc)->b >> 15) & 1)
-#define GET_USEABLE(desc)	(((desc)->b >> 20) & 1)
-
-static void fill_user_desc(struct ia32_user_desc *info, int idx,
-		const struct desc_struct *desc)
-{
-	info->entry_number = idx;
-	info->base_addr = GET_BASE(desc);
-	info->limit = GET_LIMIT(desc);
-	info->seg_32bit = GET_32BIT(desc);
-	info->contents = GET_CONTENTS(desc);
-	info->read_exec_only = !GET_WRITABLE(desc);
-	info->limit_in_pages = GET_LIMIT_PAGES(desc);
-	info->seg_not_present = !GET_PRESENT(desc);
-	info->useable = GET_USEABLE(desc);
-}
-
-asmlinkage int
-sys32_get_thread_area (struct ia32_user_desc __user *u_info)
-{
-	struct ia32_user_desc info;
-	struct desc_struct *desc;
-	int idx;
-
-	if (get_user(idx, &u_info->entry_number))
-		return -EFAULT;
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	desc = current->thread.tls_array + idx - GDT_ENTRY_TLS_MIN;
-	fill_user_desc(&info, idx, desc);
-
-	if (copy_to_user(u_info, &info, sizeof(info)))
-		return -EFAULT;
-	return 0;
-}
-
-struct regset_get {
-	void *kbuf;
-	void __user *ubuf;
-};
-
-struct regset_set {
-	const void *kbuf;
-	const void __user *ubuf;
-};
-
-struct regset_getset {
-	struct task_struct *target;
-	const struct user_regset *regset;
-	union {
-		struct regset_get get;
-		struct regset_set set;
-	} u;
-	unsigned int pos;
-	unsigned int count;
-	int ret;
-};
-
-static void getfpreg(struct task_struct *task, int regno, int *val)
-{
-	switch (regno / sizeof(int)) {
-	case 0:
-		*val = task->thread.fcr & 0xffff;
-		break;
-	case 1:
-		*val = task->thread.fsr & 0xffff;
-		break;
-	case 2:
-		*val = (task->thread.fsr>>16) & 0xffff;
-		break;
-	case 3:
-		*val = task->thread.fir;
-		break;
-	case 4:
-		*val = (task->thread.fir>>32) & 0xffff;
-		break;
-	case 5:
-		*val = task->thread.fdr;
-		break;
-	case 6:
-		*val = (task->thread.fdr >> 32) & 0xffff;
-		break;
-	}
-}
-
-static void setfpreg(struct task_struct *task, int regno, int val)
-{
-	switch (regno / sizeof(int)) {
-	case 0:
-		task->thread.fcr = (task->thread.fcr & (~0x1f3f))
-			| (val & 0x1f3f);
-		break;
-	case 1:
-		task->thread.fsr = (task->thread.fsr & (~0xffff)) | val;
-		break;
-	case 2:
-		task->thread.fsr = (task->thread.fsr & (~0xffff0000))
-			| (val << 16);
-		break;
-	case 3:
-		task->thread.fir = (task->thread.fir & (~0xffffffff)) | val;
-		break;
-	case 5:
-		task->thread.fdr = (task->thread.fdr & (~0xffffffff)) | val;
-		break;
-	}
-}
-
-static void access_fpreg_ia32(int regno, void *reg,
-		struct pt_regs *pt, struct switch_stack *sw,
-		int tos, int write)
-{
-	void *f;
-
-	if ((regno += tos) >= 8)
-		regno -= 8;
-	if (regno < 4)
-		f = &pt->f8 + regno;
-	else if (regno <= 7)
-		f = &sw->f12 + (regno - 4);
-	else {
-		printk(KERN_ERR "regno must be less than 7 \n");
-		 return;
-	}
-
-	if (write)
-		memcpy(f, reg, sizeof(struct _fpreg_ia32));
-	else
-		memcpy(reg, f, sizeof(struct _fpreg_ia32));
-}
-
-static void do_fpregs_get(struct unw_frame_info *info, void *arg)
-{
-	struct regset_getset *dst = arg;
-	struct task_struct *task = dst->target;
-	struct pt_regs *pt;
-	int start, end, tos;
-	char buf[80];
-
-	if (dst->count == 0 || unw_unwind_to_user(info) < 0)
-		return;
-	if (dst->pos < 7 * sizeof(int)) {
-		end = min((dst->pos + dst->count),
-			(unsigned int)(7 * sizeof(int)));
-		for (start = dst->pos; start < end; start += sizeof(int))
-			getfpreg(task, start, (int *)(buf + start));
-		dst->ret = user_regset_copyout(&dst->pos, &dst->count,
-				&dst->u.get.kbuf, &dst->u.get.ubuf, buf,
-				0, 7 * sizeof(int));
-		if (dst->ret || dst->count == 0)
-			return;
-	}
-	if (dst->pos < sizeof(struct ia32_user_i387_struct)) {
-		pt = task_pt_regs(task);
-		tos = (task->thread.fsr >> 11) & 7;
-		end = min(dst->pos + dst->count,
-			(unsigned int)(sizeof(struct ia32_user_i387_struct)));
-		start = (dst->pos - 7 * sizeof(int)) /
-			sizeof(struct _fpreg_ia32);
-		end = (end - 7 * sizeof(int)) / sizeof(struct _fpreg_ia32);
-		for (; start < end; start++)
-			access_fpreg_ia32(start,
-				(struct _fpreg_ia32 *)buf + start,
-				pt, info->sw, tos, 0);
-		dst->ret = user_regset_copyout(&dst->pos, &dst->count,
-				&dst->u.get.kbuf, &dst->u.get.ubuf,
-				buf, 7 * sizeof(int),
-				sizeof(struct ia32_user_i387_struct));
-		if (dst->ret || dst->count == 0)
-			return;
-	}
-}
-
-static void do_fpregs_set(struct unw_frame_info *info, void *arg)
-{
-	struct regset_getset *dst = arg;
-	struct task_struct *task = dst->target;
-	struct pt_regs *pt;
-	char buf[80];
-	int end, start, tos;
-
-	if (dst->count == 0 || unw_unwind_to_user(info) < 0)
-		return;
-
-	if (dst->pos < 7 * sizeof(int)) {
-		start = dst->pos;
-		dst->ret = user_regset_copyin(&dst->pos, &dst->count,
-				&dst->u.set.kbuf, &dst->u.set.ubuf, buf,
-				0, 7 * sizeof(int));
-		if (dst->ret)
-			return;
-		for (; start < dst->pos; start += sizeof(int))
-			setfpreg(task, start, *((int *)(buf + start)));
-		if (dst->count == 0)
-			return;
-	}
-	if (dst->pos < sizeof(struct ia32_user_i387_struct)) {
-		start = (dst->pos - 7 * sizeof(int)) /
-			sizeof(struct _fpreg_ia32);
-		dst->ret = user_regset_copyin(&dst->pos, &dst->count,
-				&dst->u.set.kbuf, &dst->u.set.ubuf,
-				buf, 7 * sizeof(int),
-				sizeof(struct ia32_user_i387_struct));
-		if (dst->ret)
-			return;
-		pt = task_pt_regs(task);
-		tos = (task->thread.fsr >> 11) & 7;
-		end = (dst->pos - 7 * sizeof(int)) / sizeof(struct _fpreg_ia32);
-		for (; start < end; start++)
-			access_fpreg_ia32(start,
-				(struct _fpreg_ia32 *)buf + start,
-				pt, info->sw, tos, 1);
-		if (dst->count == 0)
-			return;
-	}
-}
-
-#define OFFSET(member) ((int)(offsetof(struct ia32_user_fxsr_struct, member)))
-static void getfpxreg(struct task_struct *task, int start, int end, char *buf)
-{
-	int min_val;
-
-	min_val = min(end, OFFSET(fop));
-	while (start < min_val) {
-		if (start == OFFSET(cwd))
-			*((short *)buf) = task->thread.fcr & 0xffff;
-		else if (start == OFFSET(swd))
-			*((short *)buf) = task->thread.fsr & 0xffff;
-		else if (start == OFFSET(twd))
-			*((short *)buf) = (task->thread.fsr>>16) & 0xffff;
-		buf += 2;
-		start += 2;
-	}
-	/* skip fop element */
-	if (start == OFFSET(fop)) {
-		start += 2;
-		buf += 2;
-	}
-	while (start < end) {
-		if (start == OFFSET(fip))
-			*((int *)buf) = task->thread.fir;
-		else if (start == OFFSET(fcs))
-			*((int *)buf) = (task->thread.fir>>32) & 0xffff;
-		else if (start == OFFSET(foo))
-			*((int *)buf) = task->thread.fdr;
-		else if (start == OFFSET(fos))
-			*((int *)buf) = (task->thread.fdr>>32) & 0xffff;
-		else if (start == OFFSET(mxcsr))
-			*((int *)buf) = ((task->thread.fcr>>32) & 0xff80)
-					 | ((task->thread.fsr>>32) & 0x3f);
-		buf += 4;
-		start += 4;
-	}
-}
-
-static void setfpxreg(struct task_struct *task, int start, int end, char *buf)
-{
-	int min_val, num32;
-	short num;
-	unsigned long num64;
-
-	min_val = min(end, OFFSET(fop));
-	while (start < min_val) {
-		num = *((short *)buf);
-		if (start == OFFSET(cwd)) {
-			task->thread.fcr = (task->thread.fcr & (~0x1f3f))
-						| (num & 0x1f3f);
-		} else if (start == OFFSET(swd)) {
-			task->thread.fsr = (task->thread.fsr & (~0xffff)) | num;
-		} else if (start == OFFSET(twd)) {
-			task->thread.fsr = (task->thread.fsr & (~0xffff0000))
-				| (((int)num) << 16);
-		}
-		buf += 2;
-		start += 2;
-	}
-	/* skip fop element */
-	if (start == OFFSET(fop)) {
-		start += 2;
-		buf += 2;
-	}
-	while (start < end) {
-		num32 = *((int *)buf);
-		if (start == OFFSET(fip))
-			task->thread.fir = (task->thread.fir & (~0xffffffff))
-						 | num32;
-		else if (start == OFFSET(foo))
-			task->thread.fdr = (task->thread.fdr & (~0xffffffff))
-						 | num32;
-		else if (start == OFFSET(mxcsr)) {
-			num64 = num32 & 0xff10;
-			task->thread.fcr = (task->thread.fcr &
-				(~0xff1000000000UL)) | (num64<<32);
-			num64 = num32 & 0x3f;
-			task->thread.fsr = (task->thread.fsr &
-				(~0x3f00000000UL)) | (num64<<32);
-		}
-		buf += 4;
-		start += 4;
-	}
-}
-
-static void do_fpxregs_get(struct unw_frame_info *info, void *arg)
-{
-	struct regset_getset *dst = arg;
-	struct task_struct *task = dst->target;
-	struct pt_regs *pt;
-	char buf[128];
-	int start, end, tos;
-
-	if (dst->count == 0 || unw_unwind_to_user(info) < 0)
-		return;
-	if (dst->pos < OFFSET(st_space[0])) {
-		end = min(dst->pos + dst->count, (unsigned int)32);
-		getfpxreg(task, dst->pos, end, buf);
-		dst->ret = user_regset_copyout(&dst->pos, &dst->count,
-				&dst->u.get.kbuf, &dst->u.get.ubuf, buf,
-				0, OFFSET(st_space[0]));
-		if (dst->ret || dst->count == 0)
-			return;
-	}
-	if (dst->pos < OFFSET(xmm_space[0])) {
-		pt = task_pt_regs(task);
-		tos = (task->thread.fsr >> 11) & 7;
-		end = min(dst->pos + dst->count,
-				(unsigned int)OFFSET(xmm_space[0]));
-		start = (dst->pos - OFFSET(st_space[0])) / 16;
-		end = (end - OFFSET(st_space[0])) / 16;
-		for (; start < end; start++)
-			access_fpreg_ia32(start, buf + 16 * start, pt,
-						info->sw, tos, 0);
-		dst->ret = user_regset_copyout(&dst->pos, &dst->count,
-				&dst->u.get.kbuf, &dst->u.get.ubuf,
-				buf, OFFSET(st_space[0]), OFFSET(xmm_space[0]));
-		if (dst->ret || dst->count == 0)
-			return;
-	}
-	if (dst->pos < OFFSET(padding[0]))
-		dst->ret = user_regset_copyout(&dst->pos, &dst->count,
-				&dst->u.get.kbuf, &dst->u.get.ubuf,
-				&info->sw->f16, OFFSET(xmm_space[0]),
-				OFFSET(padding[0]));
-}
-
-static void do_fpxregs_set(struct unw_frame_info *info, void *arg)
-{
-	struct regset_getset *dst = arg;
-	struct task_struct *task = dst->target;
-	char buf[128];
-	int start, end;
-
-	if (dst->count == 0 || unw_unwind_to_user(info) < 0)
-		return;
-
-	if (dst->pos < OFFSET(st_space[0])) {
-		start = dst->pos;
-		dst->ret = user_regset_copyin(&dst->pos, &dst->count,
-				&dst->u.set.kbuf, &dst->u.set.ubuf,
-				buf, 0, OFFSET(st_space[0]));
-		if (dst->ret)
-			return;
-		setfpxreg(task, start, dst->pos, buf);
-		if (dst->count == 0)
-			return;
-	}
-	if (dst->pos < OFFSET(xmm_space[0])) {
-		struct pt_regs *pt;
-		int tos;
-		pt = task_pt_regs(task);
-		tos = (task->thread.fsr >> 11) & 7;
-		start = (dst->pos - OFFSET(st_space[0])) / 16;
-		dst->ret = user_regset_copyin(&dst->pos, &dst->count,
-				&dst->u.set.kbuf, &dst->u.set.ubuf,
-				buf, OFFSET(st_space[0]), OFFSET(xmm_space[0]));
-		if (dst->ret)
-			return;
-		end = (dst->pos - OFFSET(st_space[0])) / 16;
-		for (; start < end; start++)
-			access_fpreg_ia32(start, buf + 16 * start, pt, info->sw,
-						 tos, 1);
-		if (dst->count == 0)
-			return;
-	}
-	if (dst->pos < OFFSET(padding[0]))
-		dst->ret = user_regset_copyin(&dst->pos, &dst->count,
-				&dst->u.set.kbuf, &dst->u.set.ubuf,
-				&info->sw->f16, OFFSET(xmm_space[0]),
-				 OFFSET(padding[0]));
-}
-#undef OFFSET
-
-static int do_regset_call(void (*call)(struct unw_frame_info *, void *),
-		struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		const void *kbuf, const void __user *ubuf)
-{
-	struct regset_getset info = { .target = target, .regset = regset,
-		.pos = pos, .count = count,
-		.u.set = { .kbuf = kbuf, .ubuf = ubuf },
-		.ret = 0 };
-
-	if (target == current)
-		unw_init_running(call, &info);
-	else {
-		struct unw_frame_info ufi;
-		memset(&ufi, 0, sizeof(ufi));
-		unw_init_from_blocked_task(&ufi, target);
-		(*call)(&ufi, &info);
-	}
-
-	return info.ret;
-}
-
-static int ia32_fpregs_get(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		void *kbuf, void __user *ubuf)
-{
-	return do_regset_call(do_fpregs_get, target, regset, pos, count,
-		kbuf, ubuf);
-}
-
-static int ia32_fpregs_set(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		const void *kbuf, const void __user *ubuf)
-{
-	return do_regset_call(do_fpregs_set, target, regset, pos, count,
-		kbuf, ubuf);
-}
-
-static int ia32_fpxregs_get(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		void *kbuf, void __user *ubuf)
-{
-	return do_regset_call(do_fpxregs_get, target, regset, pos, count,
-		kbuf, ubuf);
-}
-
-static int ia32_fpxregs_set(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		const void *kbuf, const void __user *ubuf)
-{
-	return do_regset_call(do_fpxregs_set, target, regset, pos, count,
-		kbuf, ubuf);
-}
-
-static int ia32_genregs_get(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		void *kbuf, void __user *ubuf)
-{
-	if (kbuf) {
-		u32 *kp = kbuf;
-		while (count > 0) {
-			*kp++ = getreg(target, pos);
-			pos += 4;
-			count -= 4;
-		}
-	} else {
-		u32 __user *up = ubuf;
-		while (count > 0) {
-			if (__put_user(getreg(target, pos), up++))
-				return -EFAULT;
-			pos += 4;
-			count -= 4;
-		}
-	}
-	return 0;
-}
-
-static int ia32_genregs_set(struct task_struct *target,
-		const struct user_regset *regset,
-		unsigned int pos, unsigned int count,
-		const void *kbuf, const void __user *ubuf)
-{
-	int ret = 0;
-
-	if (kbuf) {
-		const u32 *kp = kbuf;
-		while (!ret && count > 0) {
-			putreg(target, pos, *kp++);
-			pos += 4;
-			count -= 4;
-		}
-	} else {
-		const u32 __user *up = ubuf;
-		u32 val;
-		while (!ret && count > 0) {
-			ret = __get_user(val, up++);
-			if (!ret)
-				putreg(target, pos, val);
-			pos += 4;
-			count -= 4;
-		}
-	}
-	return ret;
-}
-
-static int ia32_tls_active(struct task_struct *target,
-		const struct user_regset *regset)
-{
-	struct thread_struct *t = &target->thread;
-	int n = GDT_ENTRY_TLS_ENTRIES;
-	while (n > 0 && desc_empty(&t->tls_array[n -1]))
-		--n;
-	return n;
-}
-
-static int ia32_tls_get(struct task_struct *target,
-		const struct user_regset *regset, unsigned int pos,
-		unsigned int count, void *kbuf, void __user *ubuf)
-{
-	const struct desc_struct *tls;
-
-	if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct ia32_user_desc) ||
-			(pos % sizeof(struct ia32_user_desc)) != 0 ||
-			(count % sizeof(struct ia32_user_desc)) != 0)
-		return -EINVAL;
-
-	pos /= sizeof(struct ia32_user_desc);
-	count /= sizeof(struct ia32_user_desc);
-
-	tls = &target->thread.tls_array[pos];
-
-	if (kbuf) {
-		struct ia32_user_desc *info = kbuf;
-		while (count-- > 0)
-			fill_user_desc(info++, GDT_ENTRY_TLS_MIN + pos++,
-					tls++);
-	} else {
-		struct ia32_user_desc __user *u_info = ubuf;
-		while (count-- > 0) {
-			struct ia32_user_desc info;
-			fill_user_desc(&info, GDT_ENTRY_TLS_MIN + pos++, tls++);
-			if (__copy_to_user(u_info++, &info, sizeof(info)))
-				return -EFAULT;
-		}
-	}
-
-	return 0;
-}
-
-static int ia32_tls_set(struct task_struct *target,
-		const struct user_regset *regset, unsigned int pos,
-		unsigned int count, const void *kbuf, const void __user *ubuf)
-{
-	struct ia32_user_desc infobuf[GDT_ENTRY_TLS_ENTRIES];
-	const struct ia32_user_desc *info;
-
-	if (pos > GDT_ENTRY_TLS_ENTRIES * sizeof(struct ia32_user_desc) ||
-			(pos % sizeof(struct ia32_user_desc)) != 0 ||
-			(count % sizeof(struct ia32_user_desc)) != 0)
-		return -EINVAL;
-
-	if (kbuf)
-		info = kbuf;
-	else if (__copy_from_user(infobuf, ubuf, count))
-		return -EFAULT;
-	else
-		info = infobuf;
-
-	set_tls_desc(target,
-		GDT_ENTRY_TLS_MIN + (pos / sizeof(struct ia32_user_desc)),
-		info, count / sizeof(struct ia32_user_desc));
-
-	return 0;
-}
-
-/*
- * This should match arch/i386/kernel/ptrace.c:native_regsets.
- * XXX ioperm? vm86?
- */
-static const struct user_regset ia32_regsets[] = {
-	{
-		.core_note_type = NT_PRSTATUS,
-		.n = sizeof(struct user_regs_struct32)/4,
-		.size = 4, .align = 4,
-		.get = ia32_genregs_get, .set = ia32_genregs_set
-	},
-	{
-		.core_note_type = NT_PRFPREG,
-		.n = sizeof(struct ia32_user_i387_struct) / 4,
-		.size = 4, .align = 4,
-		.get = ia32_fpregs_get, .set = ia32_fpregs_set
-	},
-	{
-		.core_note_type = NT_PRXFPREG,
-		.n = sizeof(struct ia32_user_fxsr_struct) / 4,
-		.size = 4, .align = 4,
-		.get = ia32_fpxregs_get, .set = ia32_fpxregs_set
-	},
-	{
-		.core_note_type = NT_386_TLS,
-		.n = GDT_ENTRY_TLS_ENTRIES,
-		.bias = GDT_ENTRY_TLS_MIN,
-		.size = sizeof(struct ia32_user_desc),
-		.align = sizeof(struct ia32_user_desc),
-		.active = ia32_tls_active,
-		.get = ia32_tls_get, .set = ia32_tls_set,
-	},
-};
-
-const struct user_regset_view user_ia32_view = {
-	.name = "i386", .e_machine = EM_386,
-	.regsets = ia32_regsets, .n = ARRAY_SIZE(ia32_regsets)
-};
-
-long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, 
-			__u32 len_low, __u32 len_high, int advice)
-{ 
-	return sys_fadvise64_64(fd,
-			       (((u64)offset_high)<<32) | offset_low,
-			       (((u64)len_high)<<32) | len_low,
-			       advice); 
-} 
-
-#ifdef	NOTYET  /* UNTESTED FOR IA64 FROM HERE DOWN */
-
-asmlinkage long sys32_setreuid(compat_uid_t ruid, compat_uid_t euid)
-{
-	uid_t sruid, seuid;
-
-	sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid);
-	seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid);
-	return sys_setreuid(sruid, seuid);
-}
-
-asmlinkage long
-sys32_setresuid(compat_uid_t ruid, compat_uid_t euid,
-		compat_uid_t suid)
-{
-	uid_t sruid, seuid, ssuid;
-
-	sruid = (ruid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)ruid);
-	seuid = (euid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)euid);
-	ssuid = (suid == (compat_uid_t)-1) ? ((uid_t)-1) : ((uid_t)suid);
-	return sys_setresuid(sruid, seuid, ssuid);
-}
-
-asmlinkage long
-sys32_setregid(compat_gid_t rgid, compat_gid_t egid)
-{
-	gid_t srgid, segid;
-
-	srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid);
-	segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid);
-	return sys_setregid(srgid, segid);
-}
-
-asmlinkage long
-sys32_setresgid(compat_gid_t rgid, compat_gid_t egid,
-		compat_gid_t sgid)
-{
-	gid_t srgid, segid, ssgid;
-
-	srgid = (rgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)rgid);
-	segid = (egid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)egid);
-	ssgid = (sgid == (compat_gid_t)-1) ? ((gid_t)-1) : ((gid_t)sgid);
-	return sys_setresgid(srgid, segid, ssgid);
-}
-#endif /* NOTYET */

arch/ia64/include/asm/acpi.h

@@ -100,7 +100,32 @@ ia64_acpi_release_global_lock (unsigned int *lock)
 static inline void disable_acpi(void) { }
 static inline void pci_acpi_crs_quirks(void) { }
 
+#ifdef CONFIG_IA64_GENERIC
 const char *acpi_get_sysname (void);
+#else
+static inline const char *acpi_get_sysname (void)
+{
+# if defined (CONFIG_IA64_HP_SIM)
+	return "hpsim";
+# elif defined (CONFIG_IA64_HP_ZX1)
+	return "hpzx1";
+# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
+	return "hpzx1_swiotlb";
+# elif defined (CONFIG_IA64_SGI_SN2)
+	return "sn2";
+# elif defined (CONFIG_IA64_SGI_UV)
+	return "uv";
+# elif defined (CONFIG_IA64_DIG)
+	return "dig";
+# elif defined (CONFIG_IA64_XEN_GUEST)
+	return "xen";
+# elif defined(CONFIG_IA64_DIG_VTD)
+	return "dig_vtd";
+# else
+#	error Unknown platform.  Fix acpi.c.
+# endif
+}
+#endif
 int acpi_request_vector (u32 int_type);
 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 

arch/ia64/include/asm/ia32.h

@@ -1,40 +0,0 @@
-#ifndef _ASM_IA64_IA32_H
-#define _ASM_IA64_IA32_H
-
-
-#include <asm/ptrace.h>
-#include <asm/signal.h>
-
-#define IA32_NR_syscalls		285	/* length of syscall table */
-#define IA32_PAGE_SHIFT			12	/* 4KB pages */
-
-#ifndef __ASSEMBLY__
-
-# ifdef CONFIG_IA32_SUPPORT
-
-#define IA32_PAGE_OFFSET	0xc0000000
-
-extern void ia32_cpu_init (void);
-extern void ia32_mem_init (void);
-extern void ia32_gdt_init (void);
-extern int ia32_exception (struct pt_regs *regs, unsigned long isr);
-extern int ia32_intercept (struct pt_regs *regs, unsigned long isr);
-extern int ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs);
-
-# endif /* !CONFIG_IA32_SUPPORT */
-
-/* Declare this unconditionally, so we don't get warnings for unreachable code.  */
-extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info,
-			      sigset_t *set, struct pt_regs *regs);
-#if PAGE_SHIFT > IA32_PAGE_SHIFT
-extern int ia32_copy_ia64_partial_page_list(struct task_struct *,
-					unsigned long);
-extern void ia32_drop_ia64_partial_page_list(struct task_struct *);
-#else
-# define ia32_copy_ia64_partial_page_list(a1, a2)	0
-# define ia32_drop_ia64_partial_page_list(a1)	do { ; } while (0)
-#endif
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_IA64_IA32_H */

arch/ia64/include/asm/processor.h

@@ -270,23 +270,6 @@ typedef struct {
 		 (int __user *) (addr));							\
 })
 
-#ifdef CONFIG_IA32_SUPPORT
-struct desc_struct {
-	unsigned int a, b;
-};
-
-#define desc_empty(desc)		(!((desc)->a | (desc)->b))
-#define desc_equal(desc1, desc2)	(((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
-
-#define GDT_ENTRY_TLS_ENTRIES	3
-#define GDT_ENTRY_TLS_MIN	6
-#define GDT_ENTRY_TLS_MAX 	(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
-
-#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
-
-struct ia64_partial_page_list;
-#endif
-
 struct thread_struct {
 	__u32 flags;			/* various thread flags (see IA64_THREAD_*) */
 	/* writing on_ustack is performance-critical, so it's worth spending 8 bits on it... */
@@ -298,29 +281,6 @@ struct thread_struct {
 	__u64 rbs_bot;			/* the base address for the RBS */
 	int last_fph_cpu;		/* CPU that may hold the contents of f32-f127 */
 
-#ifdef CONFIG_IA32_SUPPORT
-	__u64 eflag;			/* IA32 EFLAGS reg */
-	__u64 fsr;			/* IA32 floating pt status reg */
-	__u64 fcr;			/* IA32 floating pt control reg */
-	__u64 fir;			/* IA32 fp except. instr. reg */
-	__u64 fdr;			/* IA32 fp except. data reg */
-	__u64 old_k1;			/* old value of ar.k1 */
-	__u64 old_iob;			/* old IOBase value */
-	struct ia64_partial_page_list *ppl; /* partial page list for 4K page size issue */
-        /* cached TLS descriptors. */
-	struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
-
-# define INIT_THREAD_IA32	.eflag =	0,			\
-				.fsr =		0,			\
-				.fcr =		0x17800000037fULL,	\
-				.fir =		0,			\
-				.fdr =		0,			\
-				.old_k1 =	0,			\
-				.old_iob =	0,			\
-				.ppl =		NULL,
-#else
-# define INIT_THREAD_IA32
-#endif /* CONFIG_IA32_SUPPORT */
 #ifdef CONFIG_PERFMON
 	void *pfm_context;		     /* pointer to detailed PMU context */
 	unsigned long pfm_needs_checking;    /* when >0, pending perfmon work on kernel exit */
@@ -342,7 +302,6 @@ struct thread_struct {
 	.rbs_bot =	STACK_TOP - DEFAULT_USER_STACK_SIZE,	\
 	.task_size =	DEFAULT_TASK_SIZE,			\
 	.last_fph_cpu =  -1,					\
-	INIT_THREAD_IA32					\
 	INIT_THREAD_PM						\
 	.dbr =		{0, },					\
 	.ibr =		{0, },					\
@@ -485,11 +444,6 @@ extern void __ia64_load_fpu (struct ia64_fpreg *fph);
 extern void ia64_save_debug_regs (unsigned long *save_area);
 extern void ia64_load_debug_regs (unsigned long *save_area);
 
-#ifdef CONFIG_IA32_SUPPORT
-extern void ia32_save_state (struct task_struct *task);
-extern void ia32_load_state (struct task_struct *task);
-#endif
-
 #define ia64_fph_enable()	do { ia64_rsm(IA64_PSR_DFH); ia64_srlz_d(); } while (0)
 #define ia64_fph_disable()	do { ia64_ssm(IA64_PSR_DFH); ia64_srlz_d(); } while (0)
 

arch/ia64/include/asm/scatterlist.h

@@ -1,25 +1,6 @@
 #ifndef _ASM_IA64_SCATTERLIST_H
 #define _ASM_IA64_SCATTERLIST_H
 
-/*
- * Modified 1998-1999, 2001-2002, 2004
- *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
- */
-
-#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long sg_magic;
-#endif
-	unsigned long page_link;
-	unsigned int offset;
-	unsigned int length;	/* buffer length */
-
-	dma_addr_t dma_address;
-	unsigned int dma_length;
-};
-
 /*
  * It used to be that ISA_DMA_THRESHOLD had something to do with the
  * DMA-limits of ISA-devices.  Nowadays, its only remaining use (apart
@@ -30,9 +11,6 @@ struct scatterlist {
  */
 #define ISA_DMA_THRESHOLD	0xffffffff
 
-#define sg_dma_len(sg)		((sg)->dma_length)
-#define sg_dma_address(sg)	((sg)->dma_address)
-
-#define	ARCH_HAS_SG_CHAIN
+#include <asm-generic/scatterlist.h>
 
 #endif /* _ASM_IA64_SCATTERLIST_H */

arch/ia64/include/asm/syscall.h

@@ -22,33 +22,18 @@ static inline long syscall_get_nr(struct task_struct *task,
 	if ((long)regs->cr_ifs < 0) /* Not a syscall */
 		return -1;
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		return regs->r1;
-#endif
-
 	return regs->r15;
 }
 
 static inline void syscall_rollback(struct task_struct *task,
 				    struct pt_regs *regs)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		regs->r8 = regs->r1;
-#endif
-
 	/* do nothing */
 }
 
 static inline long syscall_get_error(struct task_struct *task,
 				     struct pt_regs *regs)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs))
-		return regs->r8;
-#endif
-
 	return regs->r10 == -1 ? regs->r8:0;
 }
 
@@ -62,13 +47,6 @@ static inline void syscall_set_return_value(struct task_struct *task,
 					    struct pt_regs *regs,
 					    int error, long val)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		regs->r8 = (long) error ? error : val;
-		return;
-	}
-#endif
-
 	if (error) {
 		/* error < 0, but ia64 uses > 0 return value */
 		regs->r8 = -error;
@@ -89,37 +67,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
 {
 	BUG_ON(i + n > 6);
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		switch (i + n) {
-		case 6:
-			if (!n--) break;
-			*args++ = regs->r13;
-		case 5:
-			if (!n--) break;
-			*args++ = regs->r15;
-		case 4:
-			if (!n--) break;
-			*args++ = regs->r14;
-		case 3:
-			if (!n--) break;
-			*args++ = regs->r10;
-		case 2:
-			if (!n--) break;
-			*args++ = regs->r9;
-		case 1:
-			if (!n--) break;
-			*args++ = regs->r11;
-		case 0:
-			if (!n--) break;
-		default:
-			BUG();
-			break;
-		}
-
-		return;
-	}
-#endif
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 0);
 }
 
@@ -130,34 +77,6 @@ static inline void syscall_set_arguments(struct task_struct *task,
 {
 	BUG_ON(i + n > 6);
 
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(regs)) {
-		switch (i + n) {
-		case 6:
-			if (!n--) break;
-			regs->r13 = *args++;
-		case 5:
-			if (!n--) break;
-			regs->r15 = *args++;
-		case 4:
-			if (!n--) break;
-			regs->r14 = *args++;
-		case 3:
-			if (!n--) break;
-			regs->r10 = *args++;
-		case 2:
-			if (!n--) break;
-			regs->r9 = *args++;
-		case 1:
-			if (!n--) break;
-			regs->r11 = *args++;
-		case 0:
-			if (!n--) break;
-		}
-
-		return;
-	}
-#endif
 	ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
 }
 #endif	/* _ASM_SYSCALL_H */

arch/ia64/include/asm/system.h

@@ -191,15 +191,6 @@ do {								\
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_IA32_SUPPORT
-# define IS_IA32_PROCESS(regs)	(ia64_psr(regs)->is != 0)
-#else
-# define IS_IA32_PROCESS(regs)		0
-struct task_struct;
-static inline void ia32_save_state(struct task_struct *t __attribute__((unused))){}
-static inline void ia32_load_state(struct task_struct *t __attribute__((unused))){}
-#endif
-
 /*
  * Context switch from one thread to another.  If the two threads have
  * different address spaces, schedule() has already taken care of
@@ -233,7 +224,7 @@ extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct
 
 #define IA64_HAS_EXTRA_STATE(t)							\
 	((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)	\
-	 || IS_IA32_PROCESS(task_pt_regs(t)) || PERFMON_IS_SYSWIDE())
+	 || PERFMON_IS_SYSWIDE())
 
 #define __switch_to(prev,next,last) do {							 \
 	IA64_ACCOUNT_ON_SWITCH(prev, next);							 \

arch/ia64/include/asm/unistd.h

@@ -335,20 +335,6 @@
 #define __ARCH_WANT_SYS_RT_SIGACTION
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
-#ifdef CONFIG_IA32_SUPPORT
-# define __ARCH_WANT_SYS_FADVISE64
-# define __ARCH_WANT_SYS_GETPGRP
-# define __ARCH_WANT_SYS_LLSEEK
-# define __ARCH_WANT_SYS_NICE
-# define __ARCH_WANT_SYS_OLD_GETRLIMIT
-# define __ARCH_WANT_SYS_OLDUMOUNT
-# define __ARCH_WANT_SYS_PAUSE
-# define __ARCH_WANT_SYS_SIGPENDING
-# define __ARCH_WANT_SYS_SIGPROCMASK
-# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
-# define __ARCH_WANT_COMPAT_SYS_TIME
-#endif
-
 #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER)
 
 #include <linux/types.h>

arch/ia64/kernel/Makefile

@@ -8,15 +8,13 @@ endif
 
 extra-y	:= head.o init_task.o vmlinux.lds
 
-obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\
+obj-y := entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o	\
 	 irq_lsapic.o ivt.o machvec.o pal.o paravirt_patchlist.o patch.o process.o perfmon.o ptrace.o sal.o		\
 	 salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \
 	 unwind.o mca.o mca_asm.o topology.o dma-mapping.o
 
+obj-$(CONFIG_ACPI)		+= acpi.o acpi-ext.o
 obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
-obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o
-obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o
-obj-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += acpi-ext.o
 
 obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o

arch/ia64/kernel/acpi.c

@@ -60,11 +60,6 @@
 
 #define PREFIX			"ACPI: "
 
-void (*pm_idle) (void);
-EXPORT_SYMBOL(pm_idle);
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
-
 u32 acpi_rsdt_forced;
 unsigned int acpi_cpei_override;
 unsigned int acpi_cpei_phys_cpuid;
@@ -83,12 +78,10 @@ static unsigned long __init acpi_find_rsdp(void)
 		       "v1.0/r0.71 tables no longer supported\n");
 	return rsdp_phys;
 }
-#endif
 
 const char __init *
 acpi_get_sysname(void)
 {
-#ifdef CONFIG_IA64_GENERIC
 	unsigned long rsdp_phys;
 	struct acpi_table_rsdp *rsdp;
 	struct acpi_table_xsdt *xsdt;
@@ -143,30 +136,8 @@ acpi_get_sysname(void)
 #endif
 
 	return "dig";
-#else
-# if defined (CONFIG_IA64_HP_SIM)
-	return "hpsim";
-# elif defined (CONFIG_IA64_HP_ZX1)
-	return "hpzx1";
-# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
-	return "hpzx1_swiotlb";
-# elif defined (CONFIG_IA64_SGI_SN2)
-	return "sn2";
-# elif defined (CONFIG_IA64_SGI_UV)
-	return "uv";
-# elif defined (CONFIG_IA64_DIG)
-	return "dig";
-# elif defined (CONFIG_IA64_XEN_GUEST)
-	return "xen";
-# elif defined(CONFIG_IA64_DIG_VTD)
-	return "dig_vtd";
-# else
-#	error Unknown platform.  Fix acpi.c.
-# endif
-#endif
 }
-
-#ifdef CONFIG_ACPI
+#endif /* CONFIG_IA64_GENERIC */
 
 #define ACPI_MAX_PLATFORM_INTERRUPTS	256
 
@@ -1060,5 +1031,3 @@ void acpi_restore_state_mem(void) {}
  * do_suspend_lowlevel()
  */
 void do_suspend_lowlevel(void) {}
-
-#endif				/* CONFIG_ACPI */

arch/ia64/kernel/audit.c

@@ -30,20 +30,11 @@ static unsigned signal_class[] = {
 
 int audit_classify_arch(int arch)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (arch == AUDIT_ARCH_I386)
-		return 1;
-#endif
 	return 0;
 }
 
 int audit_classify_syscall(int abi, unsigned syscall)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern int ia32_classify_syscall(unsigned);
-	if (abi == AUDIT_ARCH_I386)
-		return ia32_classify_syscall(syscall);
-#endif
 	switch(syscall) {
 	case __NR_open:
 		return 2;
@@ -58,18 +49,6 @@ int audit_classify_syscall(int abi, unsigned syscall)
 
 static int __init audit_classes_init(void)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern __u32 ia32_dir_class[];
-	extern __u32 ia32_write_class[];
-	extern __u32 ia32_read_class[];
-	extern __u32 ia32_chattr_class[];
-	extern __u32 ia32_signal_class[];
-	audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class);
-	audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class);
-	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class);
-	audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class);
-	audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class);
-#endif
 	audit_register_class(AUDIT_CLASS_WRITE, write_class);
 	audit_register_class(AUDIT_CLASS_READ, read_class);
 	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);

arch/ia64/kernel/entry.S

@@ -71,15 +71,6 @@ ENTRY(ia64_execve)
 	add out3=16,sp			// regs
 	br.call.sptk.many rp=sys_execve
 .ret0:
-#ifdef CONFIG_IA32_SUPPORT
-	/*
-	 * Check if we're returning to ia32 mode. If so, we need to restore ia32 registers
-	 * from pt_regs.
-	 */
-	adds r16=PT(CR_IPSR)+16,sp
-	;;
-	ld8 r16=[r16]
-#endif
 	cmp4.ge p6,p7=r8,r0
 	mov ar.pfs=loc1			// restore ar.pfs
 	sxt4 r8=r8			// return 64-bit result
@@ -108,12 +99,6 @@ ENTRY(ia64_execve)
 	ldf.fill f23=[sp];	ldf.fill f24=[sp];	mov f25=f0
 	ldf.fill f26=[sp];	ldf.fill f27=[sp];	mov f28=f0
 	ldf.fill f29=[sp];	ldf.fill f30=[sp];	mov f31=f0
-#ifdef CONFIG_IA32_SUPPORT
-	tbit.nz p6,p0=r16, IA64_PSR_IS_BIT
-	movl loc0=ia64_ret_from_ia32_execve
-	;;
-(p6)	mov rp=loc0
-#endif
 	br.ret.sptk.many rp
 END(ia64_execve)
 
@@ -848,30 +833,6 @@ __paravirt_work_processed_syscall:
 	br.cond.sptk.many rbs_switch	// B
 END(__paravirt_leave_syscall)
 
-#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
-#ifdef CONFIG_IA32_SUPPORT
-GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
-	PT_REGS_UNWIND_INFO(0)
-	adds r2=PT(R8)+16,sp			// r2 = &pt_regs.r8
-	adds r3=PT(R10)+16,sp			// r3 = &pt_regs.r10
-	;;
-	.mem.offset 0,0
-	st8.spill [r2]=r8	// store return value in slot for r8 and set unat bit
-	.mem.offset 8,0
-	st8.spill [r3]=r0	// clear error indication in slot for r10 and set unat bit
-#ifdef CONFIG_PARAVIRT
-	;;
-	// don't fall through, ia64_leave_kernel may be #define'd
-	br.cond.sptk.few ia64_leave_kernel
-	;;
-#endif /* CONFIG_PARAVIRT */
-END(ia64_ret_from_ia32_execve)
-#ifndef CONFIG_PARAVIRT
-	// fall through
-#endif
-#endif /* CONFIG_IA32_SUPPORT */
-#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
-
 GLOBAL_ENTRY(__paravirt_leave_kernel)
 	PT_REGS_UNWIND_INFO(0)
 	/*

arch/ia64/kernel/ivt.S

@@ -49,7 +49,6 @@
 
 #include <asm/asmmacro.h>
 #include <asm/break.h>
-#include <asm/ia32.h>
 #include <asm/kregs.h>
 #include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
@@ -1386,28 +1385,6 @@ END(ia32_exception)
 // 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept  (30,31,59,70,71)
 ENTRY(ia32_intercept)
 	DBG_FAULT(46)
-#ifdef	CONFIG_IA32_SUPPORT
-	mov r31=pr
-	MOV_FROM_ISR(r16)
-	;;
-	extr.u r17=r16,16,8	// get ISR.code
-	mov r18=ar.eflag
-	MOV_FROM_IIM(r19)	// old eflag value
-	;;
-	cmp.ne p6,p0=2,r17
-(p6)	br.cond.spnt 1f		// not a system flag fault
-	xor r16=r18,r19
-	;;
-	extr.u r17=r16,18,1	// get the eflags.ac bit
-	;;
-	cmp.eq p6,p0=0,r17
-(p6)	br.cond.spnt 1f		// eflags.ac bit didn't change
-	;;
-	mov pr=r31,-1		// restore predicate registers
-	RFI
-
-1:
-#endif	// CONFIG_IA32_SUPPORT
 	FAULT(46)
 END(ia32_intercept)
 
@@ -1416,12 +1393,7 @@ END(ia32_intercept)
 // 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt  (74)
 ENTRY(ia32_interrupt)
 	DBG_FAULT(47)
-#ifdef CONFIG_IA32_SUPPORT
-	mov r31=pr
-	br.sptk.many dispatch_to_ia32_handler
-#else
 	FAULT(47)
-#endif
 END(ia32_interrupt)
 
 	.org ia64_ivt+0x6c00
@@ -1715,89 +1687,3 @@ ENTRY(dispatch_illegal_op_fault)
 (p6)	br.call.dpnt.many b6=b6		// call returns to ia64_leave_kernel
 	br.sptk.many ia64_leave_kernel
 END(dispatch_illegal_op_fault)
-
-#ifdef CONFIG_IA32_SUPPORT
-
-	/*
-	 * There is no particular reason for this code to be here, other than that
-	 * there happens to be space here that would go unused otherwise.  If this
-	 * fault ever gets "unreserved", simply moved the following code to a more
-	 * suitable spot...
-	 */
-
-	// IA32 interrupt entry point
-
-ENTRY(dispatch_to_ia32_handler)
-	SAVE_MIN
-	;;
-	MOV_FROM_ISR(r14)
-	SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(r3, r24)
-				// guarantee that interruption collection is on
-	;;
-	SSM_PSR_I(p15, p15, r3)
-	adds r3=8,r2		// Base pointer for SAVE_REST
-	;;
-	SAVE_REST
-	;;
-	mov r15=0x80
-	shr r14=r14,16		// Get interrupt number
-	;;
-	cmp.ne p6,p0=r14,r15
-(p6)	br.call.dpnt.many b6=non_ia32_syscall
-
-	adds r14=IA64_PT_REGS_R8_OFFSET + 16,sp	// 16 byte hole per SW conventions
-	adds r15=IA64_PT_REGS_R1_OFFSET + 16,sp
-	;;
-	cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
-	ld8 r8=[r14]		// get r8
-	;;
-	st8 [r15]=r8		// save original EAX in r1 (IA32 procs don't use the GP)
-	;;
-	alloc r15=ar.pfs,0,0,6,0	// must first in an insn group
-	;;
-	ld4 r8=[r14],8		// r8 == eax (syscall number)
-	mov r15=IA32_NR_syscalls
-	;;
-	cmp.ltu.unc p6,p7=r8,r15
-	ld4 out1=[r14],8	// r9 == ecx
-	;;
-	ld4 out2=[r14],8	// r10 == edx
-	;;
-	ld4 out0=[r14]		// r11 == ebx
-	adds r14=(IA64_PT_REGS_R13_OFFSET) + 16,sp
-	;;
-	ld4 out5=[r14],PT(R14)-PT(R13)	// r13 == ebp
-	;;
-	ld4 out3=[r14],PT(R15)-PT(R14)	// r14 == esi
-	adds r2=TI_FLAGS+IA64_TASK_SIZE,r13
-	;;
-	ld4 out4=[r14]		// r15 == edi
-	movl r16=ia32_syscall_table
-	;;
-(p6)	shladd r16=r8,3,r16	// force ni_syscall if not valid syscall number
-	ld4 r2=[r2]		// r2 = current_thread_info()->flags
-	;;
-	ld8 r16=[r16]
-	and r2=_TIF_SYSCALL_TRACEAUDIT,r2	// mask trace or audit
-	;;
-	mov b6=r16
-	movl r15=ia32_ret_from_syscall
-	cmp.eq p8,p0=r2,r0
-	;;
-	mov rp=r15
-(p8)	br.call.sptk.many b6=b6
-	br.cond.sptk ia32_trace_syscall
-
-non_ia32_syscall:
-	alloc r15=ar.pfs,0,0,2,0
-	mov out0=r14				// interrupt #
-	add out1=16,sp				// pointer to pt_regs
-	;;			// avoid WAW on CFM
-	br.call.sptk.many rp=ia32_bad_interrupt
-.ret1:	movl r15=ia64_leave_kernel
-	;;
-	mov rp=r15
-	br.ret.sptk.many rp
-END(dispatch_to_ia32_handler)
-
-#endif /* CONFIG_IA32_SUPPORT */

arch/ia64/kernel/perfmon.c

@@ -2713,7 +2713,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg
 			goto buffer_error;
 	}
 
-	DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d \n",
+	DPRINT(("ctx=%p flags=0x%x system=%d notify_block=%d excl_idle=%d no_msg=%d ctx_fd=%d\n",
 		ctx,
 		ctx_flags,
 		ctx->ctx_fl_system,
@@ -3677,7 +3677,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
 	 * "self-monitoring".
 	 */
 	if (CTX_OVFL_NOBLOCK(ctx) == 0 && state == PFM_CTX_MASKED) {
-		DPRINT(("unblocking [%d] \n", task_pid_nr(task)));
+		DPRINT(("unblocking [%d]\n", task_pid_nr(task)));
 		complete(&ctx->ctx_restart_done);
 	} else {
 		DPRINT(("[%d] armed exit trap\n", task_pid_nr(task)));

arch/ia64/kernel/process.c

@@ -33,7 +33,6 @@
 #include <asm/cpu.h>
 #include <asm/delay.h>
 #include <asm/elf.h>
-#include <asm/ia32.h>
 #include <asm/irq.h>
 #include <asm/kexec.h>
 #include <asm/pgalloc.h>
@@ -60,6 +59,10 @@ unsigned long idle_halt;
 EXPORT_SYMBOL(idle_halt);
 unsigned long idle_nomwait;
 EXPORT_SYMBOL(idle_nomwait);
+void (*pm_idle) (void);
+EXPORT_SYMBOL(pm_idle);
+void (*pm_power_off) (void);
+EXPORT_SYMBOL(pm_power_off);
 
 void
 ia64_do_show_stack (struct unw_frame_info *info, void *arg)
@@ -358,11 +361,6 @@ ia64_save_extra (struct task_struct *task)
 	if (info & PFM_CPUINFO_SYST_WIDE)
 		pfm_syst_wide_update_task(task, info, 0);
 #endif
-
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(task)))
-		ia32_save_state(task);
-#endif
 }
 
 void
@@ -383,11 +381,6 @@ ia64_load_extra (struct task_struct *task)
 	if (info & PFM_CPUINFO_SYST_WIDE) 
 		pfm_syst_wide_update_task(task, info, 1);
 #endif
-
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(task)))
-		ia32_load_state(task);
-#endif
 }
 
 /*
@@ -426,7 +419,7 @@ copy_thread(unsigned long clone_flags,
 	     unsigned long user_stack_base, unsigned long user_stack_size,
 	     struct task_struct *p, struct pt_regs *regs)
 {
-	extern char ia64_ret_from_clone, ia32_ret_from_clone;
+	extern char ia64_ret_from_clone;
 	struct switch_stack *child_stack, *stack;
 	unsigned long rbs, child_rbs, rbs_size;
 	struct pt_regs *child_ptregs;
@@ -457,7 +450,7 @@ copy_thread(unsigned long clone_flags,
 	memcpy((void *) child_rbs, (void *) rbs, rbs_size);
 
 	if (likely(user_mode(child_ptregs))) {
-		if ((clone_flags & CLONE_SETTLS) && !IS_IA32_PROCESS(regs))
+		if (clone_flags & CLONE_SETTLS)
 			child_ptregs->r13 = regs->r16;	/* see sys_clone2() in entry.S */
 		if (user_stack_base) {
 			child_ptregs->r12 = user_stack_base + user_stack_size - 16;
@@ -477,10 +470,7 @@ copy_thread(unsigned long clone_flags,
 		child_ptregs->r13 = (unsigned long) p;		/* set `current' pointer */
 	}
 	child_stack->ar_bspstore = child_rbs + rbs_size;
-	if (IS_IA32_PROCESS(regs))
-		child_stack->b0 = (unsigned long) &ia32_ret_from_clone;
-	else
-		child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
+	child_stack->b0 = (unsigned long) &ia64_ret_from_clone;
 
 	/* copy parts of thread_struct: */
 	p->thread.ksp = (unsigned long) child_stack - 16;
@@ -515,22 +505,6 @@ copy_thread(unsigned long clone_flags,
 	p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR)
 			   | THREAD_FLAGS_TO_SET);
 	ia64_drop_fpu(p);	/* don't pick up stale state from a CPU's fph */
-#ifdef CONFIG_IA32_SUPPORT
-	/*
-	 * If we're cloning an IA32 task then save the IA32 extra
-	 * state from the current task to the new task
-	 */
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		ia32_save_state(p);
-		if (clone_flags & CLONE_SETTLS)
-			retval = ia32_clone_tls(p, child_ptregs);
-
-		/* Copy partially mapped page list */
-		if (!retval)
-			retval = ia32_copy_ia64_partial_page_list(p,
-								clone_flags);
-	}
-#endif
 
 #ifdef CONFIG_PERFMON
 	if (current->thread.pfm_context)
@@ -704,15 +678,6 @@ EXPORT_SYMBOL(kernel_thread);
 int
 kernel_thread_helper (int (*fn)(void *), void *arg)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		/* A kernel thread is always a 64-bit process. */
-		current->thread.map_base  = DEFAULT_MAP_BASE;
-		current->thread.task_size = DEFAULT_TASK_SIZE;
-		ia64_set_kr(IA64_KR_IO_BASE, current->thread.old_iob);
-		ia64_set_kr(IA64_KR_TSSD, current->thread.old_k1);
-	}
-#endif
 	return (*fn)(arg);
 }
 
@@ -725,14 +690,6 @@ flush_thread (void)
 	/* drop floating-point and debug-register state if it exists: */
 	current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID);
 	ia64_drop_fpu(current);
-#ifdef CONFIG_IA32_SUPPORT
-	if (IS_IA32_PROCESS(task_pt_regs(current))) {
-		ia32_drop_ia64_partial_page_list(current);
-		current->thread.task_size = IA32_PAGE_OFFSET;
-		set_fs(USER_DS);
-		memset(current->thread.tls_array, 0, sizeof(current->thread.tls_array));
-	}
-#endif
 }
 
 /*
@@ -753,8 +710,6 @@ exit_thread (void)
 	if (current->thread.flags & IA64_THREAD_DBG_VALID)
 		pfm_release_debug_registers(current);
 #endif
-	if (IS_IA32_PROCESS(task_pt_regs(current)))
-		ia32_drop_ia64_partial_page_list(current);
 }
 
 unsigned long

arch/ia64/kernel/ptrace.c

@@ -1250,13 +1250,8 @@ syscall_trace_enter (long arg0, long arg1, long arg2, long arg3,
 		long syscall;
 		int arch;
 
-		if (IS_IA32_PROCESS(&regs)) {
-			syscall = regs.r1;
-			arch = AUDIT_ARCH_I386;
-		} else {
-			syscall = regs.r15;
-			arch = AUDIT_ARCH_IA64;
-		}
+		syscall = regs.r15;
+		arch = AUDIT_ARCH_IA64;
 
 		audit_syscall_entry(arch, syscall, arg0, arg1, arg2, arg3);
 	}
@@ -2172,11 +2167,6 @@ static const struct user_regset_view user_ia64_view = {
 
 const struct user_regset_view *task_user_regset_view(struct task_struct *tsk)
 {
-#ifdef CONFIG_IA32_SUPPORT
-	extern const struct user_regset_view user_ia32_view;
-	if (IS_IA32_PROCESS(task_pt_regs(tsk)))
-		return &user_ia32_view;
-#endif
 	return &user_ia64_view;
 }
 

arch/ia64/kernel/setup.c

@@ -46,7 +46,6 @@
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
 
-#include <asm/ia32.h>
 #include <asm/machvec.h>
 #include <asm/mca.h>
 #include <asm/meminit.h>
@@ -1016,10 +1015,6 @@ cpu_init (void)
 	ia64_mmu_init(ia64_imva(cpu_data));
 	ia64_mca_cpu_init(ia64_imva(cpu_data));
 
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_cpu_init();
-#endif
-
 	/* Clear ITC to eliminate sched_clock() overflows in human time.  */
 	ia64_set_itc(0);
 

arch/ia64/kernel/signal.c

@@ -21,7 +21,6 @@
 #include <linux/unistd.h>
 #include <linux/wait.h>
 
-#include <asm/ia32.h>
 #include <asm/intrinsics.h>
 #include <asm/uaccess.h>
 #include <asm/rse.h>
@@ -425,14 +424,8 @@ static long
 handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset,
 	       struct sigscratch *scr)
 {
-	if (IS_IA32_PROCESS(&scr->pt)) {
-		/* send signal to IA-32 process */
-		if (!ia32_setup_frame1(sig, ka, info, oldset, &scr->pt))
-			return 0;
-	} else
-		/* send signal to IA-64 process */
-		if (!setup_frame(sig, ka, info, oldset, scr))
-			return 0;
+	if (!setup_frame(sig, ka, info, oldset, scr))
+		return 0;
 
 	spin_lock_irq(&current->sighand->siglock);
 	sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
@@ -462,7 +455,6 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 	siginfo_t info;
 	long restart = in_syscall;
 	long errno = scr->pt.r8;
-#	define ERR_CODE(c)	(IS_IA32_PROCESS(&scr->pt) ? -(c) : (c))
 
 	/*
 	 * In the ia64_leave_kernel code path, we want the common case to go fast, which
@@ -490,14 +482,7 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 		 * inferior call), thus it's important to check for restarting _after_
 		 * get_signal_to_deliver().
 		 */
-		if (IS_IA32_PROCESS(&scr->pt)) {
-			if (in_syscall) {
-				if (errno >= 0)
-					restart = 0;
-				else
-					errno = -errno;
-			}
-		} else if ((long) scr->pt.r10 != -1)
+		if ((long) scr->pt.r10 != -1)
 			/*
 			 * A system calls has to be restarted only if one of the error codes
 			 * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned.  If r10
@@ -513,22 +498,18 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 			switch (errno) {
 			      case ERESTART_RESTARTBLOCK:
 			      case ERESTARTNOHAND:
-				scr->pt.r8 = ERR_CODE(EINTR);
+				scr->pt.r8 = EINTR;
 				/* note: scr->pt.r10 is already -1 */
 				break;
 
 			      case ERESTARTSYS:
 				if ((ka.sa.sa_flags & SA_RESTART) == 0) {
-					scr->pt.r8 = ERR_CODE(EINTR);
+					scr->pt.r8 = EINTR;
 					/* note: scr->pt.r10 is already -1 */
 					break;
 				}
 			      case ERESTARTNOINTR:
-				if (IS_IA32_PROCESS(&scr->pt)) {
-					scr->pt.r8 = scr->pt.r1;
-					scr->pt.cr_iip -= 2;
-				} else
-					ia64_decrement_ip(&scr->pt);
+				ia64_decrement_ip(&scr->pt);
 				restart = 0; /* don't restart twice if handle_signal() fails... */
 			}
 		}
@@ -555,21 +536,14 @@ ia64_do_signal (struct sigscratch *scr, long in_syscall)
 		if (errno == ERESTARTNOHAND || errno == ERESTARTSYS || errno == ERESTARTNOINTR
 		    || errno == ERESTART_RESTARTBLOCK)
 		{
-			if (IS_IA32_PROCESS(&scr->pt)) {
-				scr->pt.r8 = scr->pt.r1;
-				scr->pt.cr_iip -= 2;
-				if (errno == ERESTART_RESTARTBLOCK)
-					scr->pt.r8 = 0;	/* x86 version of __NR_restart_syscall */
-			} else {
-				/*
-				 * Note: the syscall number is in r15 which is saved in
-				 * pt_regs so all we need to do here is adjust ip so that
-				 * the "break" instruction gets re-executed.
-				 */
-				ia64_decrement_ip(&scr->pt);
-				if (errno == ERESTART_RESTARTBLOCK)
-					scr->pt.r15 = __NR_restart_syscall;
-			}
+			/*
+			 * Note: the syscall number is in r15 which is saved in
+			 * pt_regs so all we need to do here is adjust ip so that
+			 * the "break" instruction gets re-executed.
+			 */
+			ia64_decrement_ip(&scr->pt);
+			if (errno == ERESTART_RESTARTBLOCK)
+				scr->pt.r15 = __NR_restart_syscall;
 		}
 	}
 

arch/ia64/kernel/smpboot.c

@@ -44,7 +44,6 @@
 #include <asm/cache.h>
 #include <asm/current.h>
 #include <asm/delay.h>
-#include <asm/ia32.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/machvec.h>
@@ -443,10 +442,6 @@ smp_callin (void)
 		calibrate_delay();
 	local_cpu_data->loops_per_jiffy = loops_per_jiffy;
 
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_gdt_init();
-#endif
-
 	/*
 	 * Allow the master to continue.
 	 */

arch/ia64/kernel/traps.c

@@ -19,7 +19,6 @@
 #include <linux/kdebug.h>
 
 #include <asm/fpswa.h>
-#include <asm/ia32.h>
 #include <asm/intrinsics.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
@@ -626,10 +625,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
 		break;
 
 	      case 45:
-#ifdef CONFIG_IA32_SUPPORT
-		if (ia32_exception(&regs, isr) == 0)
-			return;
-#endif
 		printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n");
 		printk(KERN_ERR "  iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n",
 		       iip, ifa, isr);
@@ -637,10 +632,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
 		break;
 
 	      case 46:
-#ifdef CONFIG_IA32_SUPPORT
-		if (ia32_intercept(&regs, isr) == 0)
-			return;
-#endif
 		printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n");
 		printk(KERN_ERR "  iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n",
 		       iip, ifa, isr, iim);

arch/ia64/mm/init.c

@@ -22,7 +22,6 @@
 #include <linux/kexec.h>
 
 #include <asm/dma.h>
-#include <asm/ia32.h>
 #include <asm/io.h>
 #include <asm/machvec.h>
 #include <asm/numa.h>
@@ -668,10 +667,6 @@ mem_init (void)
 			fsyscall_table[i] = sys_call_table[i] | 1;
 	}
 	setup_gate();
-
-#ifdef CONFIG_IA32_SUPPORT
-	ia32_mem_init();
-#endif
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG

arch/ia64/uv/kernel/setup.c

@@ -104,7 +104,7 @@ void __init uv_setup(char **cmdline_p)
 		uv_cpu_hub_info(cpu)->lowmem_remap_top =
 			lowmem_redir_base + lowmem_redir_size;
 		uv_cpu_hub_info(cpu)->m_val = m_val;
-		uv_cpu_hub_info(cpu)->n_val = m_val;
+		uv_cpu_hub_info(cpu)->n_val = n_val;
 		uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) -1;
 		uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
 		uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;

arch/ia64/xen/hypercall.S

@@ -58,11 +58,6 @@ __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
 __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
 __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
 
-#ifdef CONFIG_IA32_SUPPORT
-__HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
-__HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG)	// refer SDM vol1 3.1.8
-#endif /* CONFIG_IA32_SUPPORT */
-
 GLOBAL_ENTRY(xen_set_rr0_to_rr4)
 	mov r8=r32
 	mov r9=r33

arch/ia64/xen/xen_pv_ops.c

@@ -301,11 +301,6 @@ static void xen_setreg(int regnum, unsigned long val)
 	case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7:
 		xen_set_kr(regnum - _IA64_REG_AR_KR0, val);
 		break;
-#ifdef CONFIG_IA32_SUPPORT
-	case _IA64_REG_AR_EFLAG:
-		xen_set_eflag(val);
-		break;
-#endif
 	case _IA64_REG_AR_ITC:
 		xen_set_itc(val);
 		break;
@@ -332,11 +327,6 @@ static unsigned long xen_getreg(int regnum)
 	case _IA64_REG_PSR:
 		res = xen_get_psr();
 		break;
-#ifdef CONFIG_IA32_SUPPORT
-	case _IA64_REG_AR_EFLAG:
-		res = xen_get_eflag();
-		break;
-#endif
 	case _IA64_REG_AR_ITC:
 		res = xen_get_itc();
 		break;
@@ -710,9 +700,6 @@ extern unsigned long xen_getreg(int regnum);
 
 __DEFINE_FUNC(getreg,
 	      __DEFINE_GET_REG(PSR, PSR)
-#ifdef CONFIG_IA32_SUPPORT
-	      __DEFINE_GET_REG(AR_EFLAG, EFLAG)
-#endif
 
 	      /* get_itc */
 	      "mov r2 = " __stringify(_IA64_REG_AR_ITC) "\n"
@@ -789,9 +776,6 @@ __DEFINE_FUNC(setreg,
 	      ";;\n"
 	      "(p6) br.cond.spnt xen_set_itc\n"
 
-#ifdef CONFIG_IA32_SUPPORT
-	      __DEFINE_SET_REG(AR_EFLAG, SET_EFLAG)
-#endif
 	      __DEFINE_SET_REG(CR_TPR, SET_TPR)
 	      __DEFINE_SET_REG(CR_EOI, EOI)
 

drivers/input/input-compat.h

@@ -21,8 +21,6 @@
    you why the ifdefs are needed? Think about it again. -AK */
 #ifdef CONFIG_X86_64
 #  define INPUT_COMPAT_TEST is_compat_task()
-#elif defined(CONFIG_IA64)
-#  define INPUT_COMPAT_TEST IS_IA32_PROCESS(task_pt_regs(current))
 #elif defined(CONFIG_S390)
 #  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
 #elif defined(CONFIG_MIPS)