i386 vsyscall support (vdso-provided sysenter/syscall instruction based)

[musl] / arch / i386 / pthread_arch.h

diff --git a/arch/i386/pthread_arch.h b/arch/i386/pthread_arch.h
index 155b484..0ea0aac 100644 (file)
--- a/arch/i386/pthread_arch.h
+++ b/arch/i386/pthread_arch.h
@@ -1,6 +1,9 @@
 static inline struct pthread *__pthread_self()
 {
        struct pthread *self;
-       __asm__ ("movl %%gs:0,%0" : "=r" (self) );
+       __asm__ __volatile__ ("movl %%gs:0,%0" : "=r" (self) );
        return self;
 }
+
+#define CANCEL_REG_SP 7
+#define CANCEL_REG_IP 14