ucontext.h

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#ifndef _ASM_POWERPC_UCONTEXT_H
#define _ASM_POWERPC_UCONTEXT_H

#ifdef __powerpc64__
#include <asm/sigcontext.h>
#else
#include <asm/elf.h>
#endif
#include <asm/signal.h>

#ifndef __powerpc64__
struct mcontext {
    elf_gregset_t   mc_gregs;
    elf_fpregset_t  mc_fregs;
    unsigned long   mc_pad[2];
    elf_vrregset_t  mc_vregs __attribute__((__aligned__(16)));
};
#endif

struct ucontext {
    unsigned long   uc_flags;
    struct ucontext __user *uc_link;
    stack_t     uc_stack;
#ifndef __powerpc64__
    int     uc_pad[7];
    struct mcontext __user *uc_regs;/* points to uc_mcontext field */
#endif
    sigset_t    uc_sigmask;
    /* glibc has 1024-bit signal masks, ours are 64-bit */
#ifdef __powerpc64__
    sigset_t    __unused[15];   /* Allow for uc_sigmask growth */
    struct sigcontext uc_mcontext;  /* last for extensibility */
#else
    int     uc_maskext[30];
    int     uc_pad2[3];
    struct mcontext uc_mcontext;
#endif
};

#endif /* _ASM_POWERPC_UCONTEXT_H */