1 files changed, 70 insertions, 0 deletions

diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h
new file mode 100644
index 000000000000..4e0fe26d27d3
--- /dev/null
+++ b/arch/x86/include/asm/sigframe.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_X86_SIGFRAME_H
+#define _ASM_X86_SIGFRAME_H
+
+#include <asm/sigcontext.h>
+#include <asm/siginfo.h>
+#include <asm/ucontext.h>
+
+#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
+#else /* !CONFIG_X86_32 */
+
+#ifdef CONFIG_IA32_EMULATION
+#include <asm/ia32.h>
+#endif /* CONFIG_IA32_EMULATION */
+
+#endif /* CONFIG_X86_32 */
+
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+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;
+#ifdef CONFIG_IA32_EMULATION
+        unsigned int extramask[_COMPAT_NSIG_WORDS-1];
+#else /* !CONFIG_IA32_EMULATION */
+        unsigned long extramask[_NSIG_WORDS-1];
+#endif /* CONFIG_IA32_EMULATION */
+        char retcode[8];
+        /* fp state follows here */
+};
+
+struct rt_sigframe_ia32 {
+        u32 pretcode;
+        int sig;
+        u32 pinfo;
+        u32 puc;
+#ifdef CONFIG_IA32_EMULATION
+        compat_siginfo_t info;
+#else /* !CONFIG_IA32_EMULATION */
+        struct siginfo info;
+#endif /* CONFIG_IA32_EMULATION */
+        struct ucontext_ia32 uc;
+        char retcode[8];
+        /* fp state follows here */
+};
+#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
+
+#ifdef CONFIG_X86_64
+struct rt_sigframe {
+        char __user *pretcode;
+        struct ucontext uc;
+        struct siginfo info;
+        /* fp state follows here */
+};
+#endif /* CONFIG_X86_64 */
+
+#endif /* _ASM_X86_SIGFRAME_H */