x86, xsave: save/restore the extended state context in sigframe

[linux-2.6-omap-h63xx.git] / include / asm-x86 / ucontext.h

diff --git a/include/asm-x86/ucontext.h b/include/asm-x86/ucontext.h
index 9948dd328084ef66461d2dc92c996235fc78eb5e..89eaa5456a7e1e86f25f92c41bd85d2bc629ec33 100644 (file)
--- a/include/asm-x86/ucontext.h
+++ b/include/asm-x86/ucontext.h
@@ -1,6 +1,12 @@
 #ifndef ASM_X86__UCONTEXT_H
 #define ASM_X86__UCONTEXT_H
 
+#define UC_FP_XSTATE   0x1     /* indicates the presence of extended state
+                                * information in the memory layout pointed
+                                * by the fpstate pointer in the ucontext's
+                                * sigcontext struct (uc_mcontext).
+                                */
+
 struct ucontext {
        unsigned long     uc_flags;
        struct ucontext  *uc_link;