Implement a dummy atomic_cmpset_32(). It should be safe to use it in rtld as

the signals are masked anyway.
2004-11-23 16:32:34 +00:00 · 2004-11-23 16:32:34 +00:00 · 25a252899e
commit 25a252899e
parent a27952c1a9
1 changed files with 11 additions and 0 deletions
--- a/libexec/rtld-elf/arm/rtld_machdep.h
+++ b/libexec/rtld-elf/arm/rtld_machdep.h
@ -70,4 +70,15 @@ typedef struct {
 void _rtld_bind_start(void);

 extern void *__tls_get_addr(tls_index *ti);
+
+static __inline u_int32_t
+atomic_cmpset_32(volatile u_int32_t *p, u_int32_t cmpval, u_int32_t newval)
+{
+
+	if (*p == cmpval) {
+		*p = newval;
+		return (1);
+	}
+	return (0);
+}
 #endif