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Diffstat (limited to 'arch/x86/include/asm/shstk.h')
-rw-r--r--arch/x86/include/asm/shstk.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/shstk.h b/arch/x86/include/asm/shstk.h
index d4a5c7b10cb5..ecb23a8ca47d 100644
--- a/arch/x86/include/asm/shstk.h
+++ b/arch/x86/include/asm/shstk.h
@@ -6,6 +6,7 @@
#include <linux/types.h>
struct task_struct;
+struct ksignal;
#ifdef CONFIG_X86_USER_SHADOW_STACK
struct thread_shstk {
@@ -18,6 +19,8 @@ void reset_thread_features(void);
unsigned long shstk_alloc_thread_stack(struct task_struct *p, unsigned long clone_flags,
unsigned long stack_size);
void shstk_free(struct task_struct *p);
+int setup_signal_shadow_stack(struct ksignal *ksig);
+int restore_signal_shadow_stack(void);
#else
static inline long shstk_prctl(struct task_struct *task, int option,
unsigned long arg2) { return -EINVAL; }
@@ -26,6 +29,8 @@ static inline unsigned long shstk_alloc_thread_stack(struct task_struct *p,
unsigned long clone_flags,
unsigned long stack_size) { return 0; }
static inline void shstk_free(struct task_struct *p) {}
+static inline int setup_signal_shadow_stack(struct ksignal *ksig) { return 0; }
+static inline int restore_signal_shadow_stack(void) { return 0; }
#endif /* CONFIG_X86_USER_SHADOW_STACK */
#endif /* __ASSEMBLY__ */