| #ifndef ASM_X86__SIGCONTEXT_H |
| #define ASM_X86__SIGCONTEXT_H |
| |
| #include <linux/compiler.h> |
| #include <asm/types.h> |
| |
| #ifdef __i386__ |
| /* |
| * As documented in the iBCS2 standard.. |
| * |
| * The first part of "struct _fpstate" is just the normal i387 |
| * hardware setup, the extra "status" word is used to save the |
| * coprocessor status word before entering the handler. |
| * |
| * Pentium III FXSR, SSE support |
| * Gareth Hughes <gareth@valinux.com>, May 2000 |
| * |
| * The FPU state data structure has had to grow to accommodate the |
| * extended FPU state required by the Streaming SIMD Extensions. |
| * There is no documented standard to accomplish this at the moment. |
| */ |
| struct _fpreg { |
| unsigned short significand[4]; |
| unsigned short exponent; |
| }; |
| |
| struct _fpxreg { |
| unsigned short significand[4]; |
| unsigned short exponent; |
| unsigned short padding[3]; |
| }; |
| |
| struct _xmmreg { |
| unsigned long element[4]; |
| }; |
| |
| struct _fpstate { |
| /* Regular FPU environment */ |
| unsigned long cw; |
| unsigned long sw; |
| unsigned long tag; |
| unsigned long ipoff; |
| unsigned long cssel; |
| unsigned long dataoff; |
| unsigned long datasel; |
| struct _fpreg _st[8]; |
| unsigned short status; |
| unsigned short magic; /* 0xffff = regular FPU data only */ |
| |
| /* FXSR FPU environment */ |
| unsigned long _fxsr_env[6]; /* FXSR FPU env is ignored */ |
| unsigned long mxcsr; |
| unsigned long reserved; |
| struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */ |
| struct _xmmreg _xmm[8]; |
| unsigned long padding[56]; |
| }; |
| |
| #define X86_FXSR_MAGIC 0x0000 |
| |
| #ifdef __KERNEL__ |
| 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; |
| struct _fpstate __user *fpstate; |
| unsigned long oldmask; |
| unsigned long cr2; |
| }; |
| #else /* __KERNEL__ */ |
| /* |
| * User-space might still rely on the old definition: |
| */ |
| struct sigcontext { |
| unsigned short gs, __gsh; |
| unsigned short fs, __fsh; |
| unsigned short es, __esh; |
| unsigned short ds, __dsh; |
| unsigned long edi; |
| unsigned long esi; |
| unsigned long ebp; |
| unsigned long esp; |
| unsigned long ebx; |
| unsigned long edx; |
| unsigned long ecx; |
| unsigned long eax; |
| unsigned long trapno; |
| unsigned long err; |
| unsigned long eip; |
| unsigned short cs, __csh; |
| unsigned long eflags; |
| unsigned long esp_at_signal; |
| unsigned short ss, __ssh; |
| struct _fpstate __user *fpstate; |
| unsigned long oldmask; |
| unsigned long cr2; |
| }; |
| #endif /* !__KERNEL__ */ |
| |
| #else /* __i386__ */ |
| |
| /* FXSAVE frame */ |
| /* Note: reserved1/2 may someday contain valuable data. Always save/restore |
| them when you change signal frames. */ |
| struct _fpstate { |
| __u16 cwd; |
| __u16 swd; |
| __u16 twd; /* Note this is not the same as the |
| 32bit/x87/FSAVE twd */ |
| __u16 fop; |
| __u64 rip; |
| __u64 rdp; |
| __u32 mxcsr; |
| __u32 mxcsr_mask; |
| __u32 st_space[32]; /* 8*16 bytes for each FP-reg */ |
| __u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg */ |
| __u32 reserved2[24]; |
| }; |
| |
| #ifdef __KERNEL__ |
| 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; |
| struct _fpstate __user *fpstate; /* zero when no FPU context */ |
| unsigned long reserved1[8]; |
| }; |
| #else /* __KERNEL__ */ |
| /* |
| * User-space might still rely on the old definition: |
| */ |
| 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 rdi; |
| unsigned long rsi; |
| unsigned long rbp; |
| unsigned long rbx; |
| unsigned long rdx; |
| unsigned long rax; |
| unsigned long rcx; |
| unsigned long rsp; |
| unsigned long rip; |
| unsigned long eflags; /* RFLAGS */ |
| unsigned short cs; |
| unsigned short gs; |
| unsigned short fs; |
| unsigned short __pad0; |
| unsigned long err; |
| unsigned long trapno; |
| unsigned long oldmask; |
| unsigned long cr2; |
| struct _fpstate __user *fpstate; /* zero when no FPU context */ |
| unsigned long reserved1[8]; |
| }; |
| #endif /* !__KERNEL__ */ |
| |
| #endif /* !__i386__ */ |
| |
| #endif /* ASM_X86__SIGCONTEXT_H */ |