aarch64: add struct _aarch64_ctx to signal.h

[musl] / arch / arm / pthread_arch.h

diff --git a/arch/arm/pthread_arch.h b/arch/arm/pthread_arch.h
index 43a1c01..7ab9058 100644 (file)
--- a/arch/arm/pthread_arch.h
+++ b/arch/arm/pthread_arch.h
@@ -1,7 +1,28 @@
-typedef char *(*__ptr_func_t)(void) __attribute__((const));
+#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
+ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
 
-#define __pthread_self() \
-       ((pthread_t)(((__ptr_func_t)0xffff0fe0)()+8-sizeof(struct pthread)))
+static inline __attribute__((const)) pthread_t __pthread_self()
+{
+       char *p;
+       __asm__( "mrc p15,0,%0,c13,c0,3" : "=r"(p) );
+       return (void *)(p+8-sizeof(struct pthread));
+}
+
+#else
+
+static inline __attribute__((const)) pthread_t __pthread_self()
+{
+#ifdef __clang__
+       char *p;
+       __asm__( "bl __a_gettp\n\tmov %0,r0" : "=r"(p) : : "cc", "r0", "lr" );
+#else
+       register char *p __asm__("r0");
+       __asm__( "bl __a_gettp" : "=r"(p) : : "cc", "lr" );
+#endif
+       return (void *)(p+8-sizeof(struct pthread));
+}
+
+#endif
 
 #define TLS_ABOVE_TP
 #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)