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- #ifndef _PPC64_PPC32_H
- #define _PPC64_PPC32_H
- #include <linux/compat.h>
- #include <asm/siginfo.h>
- #include <asm/signal.h>
- /*
- * Data types and macros for providing 32b PowerPC support.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- /* These are here to support 32-bit syscalls on a 64-bit kernel. */
- #define __old_sigaction32 old_sigaction32
- struct __old_sigaction32 {
- compat_uptr_t sa_handler;
- compat_old_sigset_t sa_mask;
- unsigned int sa_flags;
- compat_uptr_t sa_restorer; /* not used by Linux/SPARC yet */
- };
- struct sigaction32 {
- compat_uptr_t sa_handler; /* Really a pointer, but need to deal with 32 bits */
- unsigned int sa_flags;
- compat_uptr_t sa_restorer; /* Another 32 bit pointer */
- compat_sigset_t sa_mask; /* A 32 bit mask */
- };
- typedef struct sigaltstack_32 {
- unsigned int ss_sp;
- int ss_flags;
- compat_size_t ss_size;
- } stack_32_t;
- struct pt_regs32 {
- unsigned int gpr[32];
- unsigned int nip;
- unsigned int msr;
- unsigned int orig_gpr3; /* Used for restarting system calls */
- unsigned int ctr;
- unsigned int link;
- unsigned int xer;
- unsigned int ccr;
- unsigned int mq; /* 601 only (not used at present) */
- unsigned int trap; /* Reason for being here */
- unsigned int dar; /* Fault registers */
- unsigned int dsisr;
- unsigned int result; /* Result of a system call */
- };
- struct sigcontext32 {
- unsigned int _unused[4];
- int signal;
- compat_uptr_t handler;
- unsigned int oldmask;
- compat_uptr_t regs; /* 4 byte pointer to the pt_regs32 structure. */
- };
- struct mcontext32 {
- elf_gregset_t32 mc_gregs;
- elf_fpregset_t mc_fregs;
- unsigned int mc_pad[2];
- elf_vrregset_t32 mc_vregs __attribute__((__aligned__(16)));
- elf_vsrreghalf_t32 mc_vsregs __attribute__((__aligned__(16)));
- };
- struct ucontext32 {
- unsigned int uc_flags;
- unsigned int uc_link;
- stack_32_t uc_stack;
- int uc_pad[7];
- compat_uptr_t uc_regs; /* points to uc_mcontext field */
- compat_sigset_t uc_sigmask; /* mask last for extensibility */
- /* glibc has 1024-bit signal masks, ours are 64-bit */
- int uc_maskext[30];
- int uc_pad2[3];
- struct mcontext32 uc_mcontext;
- };
- #endif /* _PPC64_PPC32_H */
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