diff options
Diffstat (limited to 'arch/x86/include/asm/sigframe.h')
| -rw-r--r-- | arch/x86/include/asm/sigframe.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h new file mode 100644 index 0000000..6718ed0 --- /dev/null +++ b/arch/x86/include/asm/sigframe.h @@ -0,0 +1,43 @@ +#ifdef CONFIG_X86_32 +#define sigframe_ia32 sigframe +#define rt_sigframe_ia32 rt_sigframe +#define sigcontext_ia32 sigcontext +#define _fpstate_ia32 _fpstate +#define ucontext_ia32 ucontext + +struct sigframe_ia32 { + u32 pretcode; + int sig; + struct sigcontext_ia32 sc; + /* + * fpstate is unused. fpstate is moved/allocated after + * retcode[] below. This movement allows to have the FP state and the + * future state extensions (xsave) stay together. + * And at the same time retaining the unused fpstate, prevents changing + * the offset of extramask[] in the sigframe and thus prevent any + * legacy application accessing/modifying it. + */ + struct _fpstate_ia32 fpstate_unused; + unsigned long extramask[_NSIG_WORDS-1]; + char retcode[8]; + /* fp state follows here */ +}; + +struct rt_sigframe_ia32 { + u32 pretcode; + int sig; + u32 pinfo; + u32 puc; + struct siginfo info; + struct ucontext_ia32 uc; + char retcode[8]; + /* fp state follows here */ +}; +#else /* !CONFIG_X86_32 */ +struct rt_sigframe { + char __user *pretcode; + struct ucontext uc; + struct siginfo info; + /* fp state follows here */ +}; +#endif /* CONFIG_X86_32 */ |