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-rw-r--r--include/asm-x86/vdso.h23
1 files changed, 17 insertions, 6 deletions
diff --git a/include/asm-x86/vdso.h b/include/asm-x86/vdso.h
index 629bcb6e8e4..86e085e003d 100644
--- a/include/asm-x86/vdso.h
+++ b/include/asm-x86/vdso.h
@@ -8,9 +8,11 @@ extern const char VDSO64_PRELINK[];
* Given a pointer to the vDSO image, find the pointer to VDSO64_name
* as that symbol is defined in the vDSO sources or linker script.
*/
-#define VDSO64_SYMBOL(base, name) ({ \
- extern const char VDSO64_##name[]; \
- (void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); })
+#define VDSO64_SYMBOL(base, name) \
+({ \
+ extern const char VDSO64_##name[]; \
+ (void *)(VDSO64_##name - VDSO64_PRELINK + (unsigned long)(base)); \
+})
#endif
#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
@@ -20,9 +22,18 @@ extern const char VDSO32_PRELINK[];
* Given a pointer to the vDSO image, find the pointer to VDSO32_name
* as that symbol is defined in the vDSO sources or linker script.
*/
-#define VDSO32_SYMBOL(base, name) ({ \
- extern const char VDSO32_##name[]; \
- (void *) (VDSO32_##name - VDSO32_PRELINK + (unsigned long) (base)); })
+#define VDSO32_SYMBOL(base, name) \
+({ \
+ extern const char VDSO32_##name[]; \
+ (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
+})
#endif
+/*
+ * These symbols are defined with the addresses in the vsyscall page.
+ * See vsyscall-sigreturn.S.
+ */
+extern void __user __kernel_sigreturn;
+extern void __user __kernel_rt_sigreturn;
+
#endif /* asm-x86/vdso.h */