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| | #include <stdint.h>
#include <elf.h>
#include "pthread_impl.h"
#include "libc.h"
#define HWCAP_TLS (1 << 15)
extern const unsigned char __attribute__((__visibility__("hidden")))
__atomics_base[], __atomics_oldkuser_base[],
__atomics_v6_base[], __atomics_v7_base[];
extern uintptr_t __atomics_selector __attribute__((__visibility__("hidden")));
int __set_thread_area(void *p)
{
#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
uintptr_t sel;
if (__hwcap & HWCAP_TLS) {
size_t *aux;
sel = (uintptr_t)__atomics_v7_base;
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)
sel = (uintptr_t)__atomics_v6_base;
break;
}
} else {
int ver = *(int *)0xffff0ffc;
sel = (uintptr_t)0xffff0fa0;
if (ver < 2) a_crash();
if (ver < 3) sel = (uintptr_t)__atomics_oldkuser_base;
}
__atomics_selector = sel - (uintptr_t)__atomics_base;
#endif
return __syscall(0xf0005, p);
}
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