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authorHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>2008-12-18 05:50:32 +0300
committerIngo Molnar <mingo@elte.hu>2008-12-18 13:28:54 +0300
commit41af86fad3c40646b9748279e3862781e937a5d2 (patch)
tree38b361f74c19b95a9cae9365742264a522dda294 /arch/x86/include/asm/sigframe.h
parenta5c56eb36f999ae0ecac278e51fd1cf8feb16c2f (diff)
downloadlinux-41af86fad3c40646b9748279e3862781e937a5d2.tar.xz
x86: signal: move sigframe.h to arch/x86/include/asm
Impact: cleanup, move header file Move arch/x86/kernel/sigframe.h to arch/x86/include/asm/sigframe.h. It will be used in arch/x86/ia32/ia32_signal.c. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/sigframe.h')
-rw-r--r--arch/x86/include/asm/sigframe.h43
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 000000000000..6718ed04b05b
--- /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 */