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@@ -1,13 +1,142 @@
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+#ifndef _ASM_X86_PTRACE_H
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+#define _ASM_X86_PTRACE_H
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+
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+#include <linux/compiler.h> /* For __user */
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+#include <asm/ptrace-abi.h>
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+
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+#ifndef __ASSEMBLY__
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+
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+#ifdef __i386__
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+/* this struct defines the way the registers are stored on the
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+ stack during a system call. */
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+
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+struct pt_regs {
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+ long ebx;
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+ long ecx;
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+ long edx;
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+ long esi;
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+ long edi;
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+ long ebp;
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+ long eax;
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+ int xds;
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+ int xes;
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+ int xfs;
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+ /* int xgs; */
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+ long orig_eax;
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+ long eip;
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+ int xcs;
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+ long eflags;
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+ long esp;
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+ int xss;
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+};
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+
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#ifdef __KERNEL__
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-# ifdef CONFIG_X86_32
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-# include "ptrace_32.h"
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-# else
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-# include "ptrace_64.h"
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-# endif
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-#else
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-# ifdef __i386__
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-# include "ptrace_32.h"
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-# else
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-# include "ptrace_64.h"
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-# endif
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+
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+#include <asm/vm86.h>
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+#include <asm/segment.h>
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+
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+struct task_struct;
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+extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
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+
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+/*
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+ * user_mode_vm(regs) determines whether a register set came from user mode.
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+ * This is true if V8086 mode was enabled OR if the register set was from
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+ * protected mode with RPL-3 CS value. This tricky test checks that with
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+ * one comparison. Many places in the kernel can bypass this full check
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+ * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
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+ */
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+static inline int user_mode(struct pt_regs *regs)
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+{
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+ return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL;
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+}
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+static inline int user_mode_vm(struct pt_regs *regs)
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+{
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+ return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
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+}
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+static inline int v8086_mode(struct pt_regs *regs)
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+{
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+ return (regs->eflags & VM_MASK);
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+}
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+
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+#define instruction_pointer(regs) ((regs)->eip)
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+#define frame_pointer(regs) ((regs)->ebp)
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+#define stack_pointer(regs) ((regs)->esp)
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+#define regs_return_value(regs) ((regs)->eax)
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+
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+extern unsigned long profile_pc(struct pt_regs *regs);
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+#endif /* __KERNEL__ */
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+
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+#else /* __i386__ */
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+
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+struct pt_regs {
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+ unsigned long r15;
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+ unsigned long r14;
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+ unsigned long r13;
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+ unsigned long r12;
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+ unsigned long rbp;
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+ unsigned long rbx;
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+/* arguments: non interrupts/non tracing syscalls only save upto here*/
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+ unsigned long r11;
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+ unsigned long r10;
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+ unsigned long r9;
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+ unsigned long r8;
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+ unsigned long rax;
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+ unsigned long rcx;
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+ unsigned long rdx;
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+ unsigned long rsi;
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+ unsigned long rdi;
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+ unsigned long orig_rax;
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+/* end of arguments */
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+/* cpu exception frame or undefined */
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+ unsigned long rip;
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+ unsigned long cs;
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+ unsigned long eflags;
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+ unsigned long rsp;
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+ unsigned long ss;
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+/* top of stack page */
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+};
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+
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+#ifdef __KERNEL__
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+
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+#define user_mode(regs) (!!((regs)->cs & 3))
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+#define user_mode_vm(regs) user_mode(regs)
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+#define instruction_pointer(regs) ((regs)->rip)
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+#define frame_pointer(regs) ((regs)->rbp)
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+#define stack_pointer(regs) ((regs)->rsp)
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+#define regs_return_value(regs) ((regs)->rax)
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+
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+extern unsigned long profile_pc(struct pt_regs *regs);
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+void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
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+
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+struct task_struct;
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+
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+extern unsigned long
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+convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
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+
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+enum {
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+ EF_CF = 0x00000001,
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+ EF_PF = 0x00000004,
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+ EF_AF = 0x00000010,
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+ EF_ZF = 0x00000040,
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+ EF_SF = 0x00000080,
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+ EF_TF = 0x00000100,
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+ EF_IE = 0x00000200,
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+ EF_DF = 0x00000400,
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+ EF_OF = 0x00000800,
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+ EF_IOPL = 0x00003000,
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+ EF_IOPL_RING0 = 0x00000000,
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+ EF_IOPL_RING1 = 0x00001000,
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+ EF_IOPL_RING2 = 0x00002000,
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+ EF_NT = 0x00004000, /* nested task */
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+ EF_RF = 0x00010000, /* resume */
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+ EF_VM = 0x00020000, /* virtual mode */
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+ EF_AC = 0x00040000, /* alignment */
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+ EF_VIF = 0x00080000, /* virtual interrupt */
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+ EF_VIP = 0x00100000, /* virtual interrupt pending */
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+ EF_ID = 0x00200000, /* id */
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+};
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+#endif /* __KERNEL__ */
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+#endif /* !__i386__ */
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+#endif /* !__ASSEMBLY__ */
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+
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#endif
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Thomas Gleixner