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-rw-r--r--arch/x86_64/pthread_arch.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/pthread_arch.h b/arch/x86_64/pthread_arch.h
index af7ae86e..c424493a 100644
--- a/arch/x86_64/pthread_arch.h
+++ b/arch/x86_64/pthread_arch.h
@@ -5,5 +5,5 @@ static inline struct pthread *__pthread_self()
 	return self;
 }
 
-#define PC_AT_SYS(c) \
-	(*(uint16_t *)(((ucontext_t *)(c))->uc_mcontext.__gregs[16])==0x050f)
+#define CANCEL_REG_SP 15
+#define CANCEL_REG_IP 16