rework arm atomic/tp backends to be thumb-compatible and fdpic-ready

[musl] / src / thread / arm / __aeabi_read_tp_c.c

#include "pthread_impl.h"
#include <stdint.h>

__attribute__((__visibility__("hidden")))
void *__aeabi_read_tp_c(void)
{
        return (void *)((uintptr_t)__pthread_self()-8+sizeof(struct pthread));
}