1 #ifndef _ASM_X86_SIGFRAME_H 2 #define _ASM_X86_SIGFRAME_H 3 4 #include <uapi/asm/sigcontext.h> 5 #include <asm/siginfo.h> 6 #include <asm/ucontext.h> 7 #include <linux/compat.h> 8 9 #ifdef CONFIG_X86_32 10 #define sigframe_ia32 sigframe 11 #define rt_sigframe_ia32 rt_sigframe 12 #define ucontext_ia32 ucontext 13 #else /* !CONFIG_X86_32 */ 14 15 #ifdef CONFIG_IA32_EMULATION 16 #include <asm/ia32.h> 17 #endif /* CONFIG_IA32_EMULATION */ 18 19 #endif /* CONFIG_X86_32 */ 20 21 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) 22 struct sigframe_ia32 { 23 u32 pretcode; 24 int sig; 25 struct sigcontext_32 sc; 26 /* 27 * fpstate is unused. fpstate is moved/allocated after 28 * retcode[] below. This movement allows to have the FP state and the 29 * future state extensions (xsave) stay together. 30 * And at the same time retaining the unused fpstate, prevents changing 31 * the offset of extramask[] in the sigframe and thus prevent any 32 * legacy application accessing/modifying it. 33 */ 34 struct _fpstate_32 fpstate_unused; 35 #ifdef CONFIG_IA32_EMULATION 36 unsigned int extramask[_COMPAT_NSIG_WORDS-1]; 37 #else /* !CONFIG_IA32_EMULATION */ 38 unsigned long extramask[_NSIG_WORDS-1]; 39 #endif /* CONFIG_IA32_EMULATION */ 40 char retcode[8]; 41 /* fp state follows here */ 42 }; 43 44 struct rt_sigframe_ia32 { 45 u32 pretcode; 46 int sig; 47 u32 pinfo; 48 u32 puc; 49 #ifdef CONFIG_IA32_EMULATION 50 compat_siginfo_t info; 51 #else /* !CONFIG_IA32_EMULATION */ 52 struct siginfo info; 53 #endif /* CONFIG_IA32_EMULATION */ 54 struct ucontext_ia32 uc; 55 char retcode[8]; 56 /* fp state follows here */ 57 }; 58 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */ 59 60 #ifdef CONFIG_X86_64 61 62 struct rt_sigframe { 63 char __user *pretcode; 64 struct ucontext uc; 65 struct siginfo info; 66 /* fp state follows here */ 67 }; 68 69 #ifdef CONFIG_X86_X32_ABI 70 71 struct ucontext_x32 { 72 unsigned int uc_flags; 73 unsigned int uc_link; 74 compat_stack_t uc_stack; 75 unsigned int uc__pad0; /* needed for alignment */ 76 struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */ 77 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 78 }; 79 80 struct rt_sigframe_x32 { 81 u64 pretcode; 82 struct ucontext_x32 uc; 83 compat_siginfo_t info; 84 /* fp state follows here */ 85 }; 86 87 #endif /* CONFIG_X86_X32_ABI */ 88 89 #endif /* CONFIG_X86_64 */ 90 91 #endif /* _ASM_X86_SIGFRAME_H */ 92