root/arch/x86/include/asm/sigcontext.h

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INCLUDED FROM


#ifndef _ASM_X86_SIGCONTEXT_H
#define _ASM_X86_SIGCONTEXT_H

#include <uapi/asm/sigcontext.h>

#ifdef __i386__
struct sigcontext {
        unsigned short gs, __gsh;
        unsigned short fs, __fsh;
        unsigned short es, __esh;
        unsigned short ds, __dsh;
        unsigned long di;
        unsigned long si;
        unsigned long bp;
        unsigned long sp;
        unsigned long bx;
        unsigned long dx;
        unsigned long cx;
        unsigned long ax;
        unsigned long trapno;
        unsigned long err;
        unsigned long ip;
        unsigned short cs, __csh;
        unsigned long flags;
        unsigned long sp_at_signal;
        unsigned short ss, __ssh;

        /*
         * fpstate is really (struct _fpstate *) or (struct _xstate *)
         * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
         * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
         * of extended memory layout. See comments at the definition of
         * (struct _fpx_sw_bytes)
         */
        void __user *fpstate;           /* zero when no FPU/extended context */
        unsigned long oldmask;
        unsigned long cr2;
};
#else /* __i386__ */
struct sigcontext {
        unsigned long r8;
        unsigned long r9;
        unsigned long r10;
        unsigned long r11;
        unsigned long r12;
        unsigned long r13;
        unsigned long r14;
        unsigned long r15;
        unsigned long di;
        unsigned long si;
        unsigned long bp;
        unsigned long bx;
        unsigned long dx;
        unsigned long ax;
        unsigned long cx;
        unsigned long sp;
        unsigned long ip;
        unsigned long flags;
        unsigned short cs;
        unsigned short gs;
        unsigned short fs;
        unsigned short __pad0;
        unsigned long err;
        unsigned long trapno;
        unsigned long oldmask;
        unsigned long cr2;

        /*
         * fpstate is really (struct _fpstate *) or (struct _xstate *)
         * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
         * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
         * of extended memory layout. See comments at the definition of
         * (struct _fpx_sw_bytes)
         */
        void __user *fpstate;           /* zero when no FPU/extended context */
        unsigned long reserved1[8];
};
#endif /* !__i386__ */
#endif /* _ASM_X86_SIGCONTEXT_H */

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