1#include "pthread_impl.h"
2#include "libc.h"
3#include <elf.h>
4
5/* Also perform sh-specific init */
6
7#define CPU_HAS_LLSC 0x0040
8#define CPU_HAS_CAS_L 0x0400
9
10extern hidden const char __sh_cas_gusa[], __sh_cas_llsc[], __sh_cas_imask[], __sh_cas_cas_l[];
11
12hidden const void *__sh_cas_ptr;
13
14hidden unsigned __sh_nommu;
15
16int __set_thread_area(void *p)
17{
18	size_t *aux;
19	__asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
20#ifndef __SH4A__
21	__sh_cas_ptr = __sh_cas_gusa;
22#if !defined(__SH3__) && !defined(__SH4__)
23	for (aux=libc.auxv; *aux; aux+=2) {
24		if (*aux != AT_PLATFORM) continue;
25		const char *s = (void *)aux[1];
26		if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
27		__sh_cas_ptr = __sh_cas_imask;
28		__sh_nommu = 1;
29	}
30#endif
31	if (__hwcap & CPU_HAS_CAS_L)
32		__sh_cas_ptr = __sh_cas_cas_l;
33	else if (__hwcap & CPU_HAS_LLSC)
34		__sh_cas_ptr = __sh_cas_llsc;
35#endif
36	return 0;
37}
38