sigframe.h

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#ifndef _ASM_X86_SIGFRAME_H
#define _ASM_X86_SIGFRAME_H

#include <asm/sigcontext.h>
#include <asm/siginfo.h>
#include <asm/ucontext.h>

#ifdef CONFIG_X86_32
#define sigframe_ia32       sigframe
#define rt_sigframe_ia32    rt_sigframe
#define sigcontext_ia32     sigcontext
#define _fpstate_ia32       _fpstate
#define ucontext_ia32       ucontext
#else /* !CONFIG_X86_32 */

#ifdef CONFIG_IA32_EMULATION
#include <asm/ia32.h>
#endif /* CONFIG_IA32_EMULATION */

#endif /* CONFIG_X86_32 */

#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
struct sigframe_ia32 {
    u32 pretcode;
    int sig;
    struct sigcontext_ia32 sc;
    /*
     * fpstate is unused. fpstate is moved/allocated after
     * retcode[] below. This movement allows to have the FP state and the
     * future state extensions (xsave) stay together.
     * And at the same time retaining the unused fpstate, prevents changing
     * the offset of extramask[] in the sigframe and thus prevent any
     * legacy application accessing/modifying it.
     */
    struct _fpstate_ia32 fpstate_unused;
#ifdef CONFIG_IA32_EMULATION
    unsigned int extramask[_COMPAT_NSIG_WORDS-1];
#else /* !CONFIG_IA32_EMULATION */
    unsigned long extramask[_NSIG_WORDS-1];
#endif /* CONFIG_IA32_EMULATION */
    char retcode[8];
    /* fp state follows here */
};

struct rt_sigframe_ia32 {
    u32 pretcode;
    int sig;
    u32 pinfo;
    u32 puc;
#ifdef CONFIG_IA32_EMULATION
    compat_siginfo_t info;
#else /* !CONFIG_IA32_EMULATION */
    struct siginfo info;
#endif /* CONFIG_IA32_EMULATION */
    struct ucontext_ia32 uc;
    char retcode[8];
    /* fp state follows here */
};
#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */

#ifdef CONFIG_X86_64

struct rt_sigframe {
    char __user *pretcode;
    struct ucontext uc;
    struct siginfo info;
    /* fp state follows here */
};

#ifdef CONFIG_X86_X32_ABI

struct rt_sigframe_x32 {
    u64 pretcode;
    struct ucontext_x32 uc;
    compat_siginfo_t info;
    /* fp state follows here */
};

#endif /* CONFIG_X86_X32_ABI */

#endif /* CONFIG_X86_64 */

#endif /* _ASM_X86_SIGFRAME_H */