arch/x86/include/asm/sigframe.h

   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 */