aarch64: fix setjmp return value

[musl] / arch / arm / pthread_arch.h

diff --git a/arch/arm/pthread_arch.h b/arch/arm/pthread_arch.h
index 43a1c01..e689ea2 100644 (file)
--- a/arch/arm/pthread_arch.h
+++ b/arch/arm/pthread_arch.h
@@ -1,9 +1,33 @@
-typedef char *(*__ptr_func_t)(void) __attribute__((const));
+#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __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 pthread_t __pthread_self()
+{
+       char *p;
+       __asm__ ( "mrc p15,0,%0,c13,c0,3" : "=r"(p) );
+       return (void *)(p-sizeof(struct pthread));
+}
+
+#else
+
+#if __ARM_ARCH_4__ || __ARM_ARCH_4T__ || __ARM_ARCH == 4
+#define BLX "mov lr,pc\n\tbx"
+#else
+#define BLX "blx"
+#endif
+
+static inline pthread_t __pthread_self()
+{
+       extern hidden uintptr_t __a_gettp_ptr;
+       register uintptr_t p __asm__("r0");
+       __asm__ ( BLX " %1" : "=r"(p) : "r"(__a_gettp_ptr) : "cc", "lr" );
+       return (void *)(p-sizeof(struct pthread));
+}
+
+#endif
 
 #define TLS_ABOVE_TP
-#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
+#define GAP_ABOVE_TP 8
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
 
-#define CANCEL_REG_IP 18
+#define MC_PC arm_pc