arch/x86/include/asm/sigframe.h

   1 #ifndef _ASM_X86_SIGFRAME_H
   2 #define _ASM_X86_SIGFRAME_H
   3
   4 #include <asm/sigcontext.h>
   5 #include <asm/siginfo.h>
   6 #include <asm/ucontext.h>
   7
   8 #ifdef CONFIG_X86_32
   9 #define sigframe_ia32           sigframe
  10 #define rt_sigframe_ia32        rt_sigframe
  11 #define sigcontext_ia32         sigcontext
  12 #define _fpstate_ia32           _fpstate
  13 #define ucontext_ia32           ucontext
  14 #else /* !CONFIG_X86_32 */
  15
  16 #ifdef CONFIG_IA32_EMULATION
  17 #include <asm/ia32.h>
  18 #endif /* CONFIG_IA32_EMULATION */
  19
  20 #endif /* CONFIG_X86_32 */
  21
  22 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
  23 struct sigframe_ia32 {
  24         u32 pretcode;
  25         int sig;
  26         struct sigcontext_ia32 sc;
  27         /*
  28          * fpstate is unused. fpstate is moved/allocated after
  29          * retcode[] below. This movement allows to have the FP state and the
  30          * future state extensions (xsave) stay together.
  31          * And at the same time retaining the unused fpstate, prevents changing
  32          * the offset of extramask[] in the sigframe and thus prevent any
  33          * legacy application accessing/modifying it.
  34          */
  35         struct _fpstate_ia32 fpstate_unused;
  36 #ifdef CONFIG_IA32_EMULATION
  37         unsigned int extramask[_COMPAT_NSIG_WORDS-1];
  38 #else /* !CONFIG_IA32_EMULATION */
  39         unsigned long extramask[_NSIG_WORDS-1];
  40 #endif /* CONFIG_IA32_EMULATION */
  41         char retcode[8];
  42         /* fp state follows here */
  43 };
  44
  45 struct rt_sigframe_ia32 {
  46         u32 pretcode;
  47         int sig;
  48         u32 pinfo;
  49         u32 puc;
  50 #ifdef CONFIG_IA32_EMULATION
  51         compat_siginfo_t info;
  52 #else /* !CONFIG_IA32_EMULATION */
  53         struct siginfo info;
  54 #endif /* CONFIG_IA32_EMULATION */
  55         struct ucontext_ia32 uc;
  56         char retcode[8];
  57         /* fp state follows here */
  58 };
  59 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
  60
  61 #ifdef CONFIG_X86_64
  62
  63 struct rt_sigframe {
  64         char __user *pretcode;
  65         struct ucontext uc;
  66         struct siginfo info;
  67         /* fp state follows here */
  68 };
  69
  70 #ifdef CONFIG_X86_X32_ABI
  71
  72 struct rt_sigframe_x32 {
  73         u64 pretcode;
  74         struct ucontext_x32 uc;
  75         compat_siginfo_t info;
  76         /* fp state follows here */
  77 };
  78
  79 #endif /* CONFIG_X86_X32_ABI */
  80
  81 #endif /* CONFIG_X86_64 */
  82
  83 #endif /* _ASM_X86_SIGFRAME_H */