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path: root/src/thread/arm/__set_thread_area.c
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Diffstat (limited to 'src/thread/arm/__set_thread_area.c')
-rw-r--r--src/thread/arm/__set_thread_area.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/src/thread/arm/__set_thread_area.c b/src/thread/arm/__set_thread_area.c
index 61d02827..daf496c2 100644
--- a/src/thread/arm/__set_thread_area.c
+++ b/src/thread/arm/__set_thread_area.c
@@ -6,43 +6,47 @@
#define HWCAP_TLS (1 << 15)
extern const unsigned char __attribute__((__visibility__("hidden")))
- __a_barrier_dummy[], __a_barrier_oldkuser[],
- __a_barrier_v6[], __a_barrier_v7[],
- __a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
- __a_gettp_dummy[];
+ __a_barrier_oldkuser[], __a_barrier_v6[], __a_barrier_v7[],
+ __a_cas_v6[], __a_cas_v7[],
+ __a_gettp_cp15[];
#define __a_barrier_kuser 0xffff0fa0
+#define __a_barrier_oldkuser (uintptr_t)__a_barrier_oldkuser
+#define __a_barrier_v6 (uintptr_t)__a_barrier_v6
+#define __a_barrier_v7 (uintptr_t)__a_barrier_v7
+
#define __a_cas_kuser 0xffff0fc0
+#define __a_cas_v6 (uintptr_t)__a_cas_v6
+#define __a_cas_v7 (uintptr_t)__a_cas_v7
+
#define __a_gettp_kuser 0xffff0fe0
+#define __a_gettp_cp15 (uintptr_t)__a_gettp_cp15
extern uintptr_t __attribute__((__visibility__("hidden")))
__a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
-#define SET(op,ver) (__a_##op##_ptr = \
- (uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
-
int __set_thread_area(void *p)
{
#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
if (__hwcap & HWCAP_TLS) {
size_t *aux;
- SET(cas, v7);
- SET(barrier, v7);
+ __a_cas_ptr = __a_cas_v7;
+ __a_barrier_ptr = __a_barrier_v7;
for (aux=libc.auxv; *aux; aux+=2) {
if (*aux != AT_PLATFORM) continue;
const char *s = (void *)aux[1];
if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
- SET(cas, v6);
- SET(barrier, v6);
+ __a_cas_ptr = __a_cas_v6;
+ __a_barrier_ptr = __a_barrier_v6;
break;
}
} else {
int ver = *(int *)0xffff0ffc;
- SET(gettp, kuser);
- SET(cas, kuser);
- SET(barrier, kuser);
+ __a_gettp_ptr = __a_gettp_kuser;
+ __a_cas_ptr = __a_cas_kuser;
+ __a_barrier_ptr = __a_barrier_kuser;
if (ver < 2) a_crash();
- if (ver < 3) SET(barrier, oldkuser);
+ if (ver < 3) __a_barrier_ptr = __a_barrier_oldkuser;
}
#endif
return __syscall(0xf0005, p);