diff options
Diffstat (limited to 'include/asm-x86/sigcontext.h')
| -rw-r--r-- | include/asm-x86/sigcontext.h | 149 |
1 files changed, 137 insertions, 12 deletions
diff --git a/include/asm-x86/sigcontext.h b/include/asm-x86/sigcontext.h index 0d16ceff159..c047f9dc342 100644 --- a/include/asm-x86/sigcontext.h +++ b/include/asm-x86/sigcontext.h @@ -1,13 +1,138 @@ -#ifdef __KERNEL__ -# ifdef CONFIG_X86_32 -# include "sigcontext_32.h" -# else -# include "sigcontext_64.h" -# endif -#else -# ifdef __i386__ -# include "sigcontext_32.h" -# else -# include "sigcontext_64.h" -# endif +#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 + +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; +}; + +#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]; +}; + +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 /* !__i386__ */ + #endif |