[wasi-libc.git] / libc-top-half / musl / arch / arm / pthread_arch.h

#if ((__ARM_ARCH_6K__ || __ARM_ARCH_6KZ__ || __ARM_ARCH_6ZK__) && !__thumb__) \
 || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7

static inline uintptr_t __get_tp()
{
	uintptr_t tp;
	__asm__ ( "mrc p15,0,%0,c13,c0,3" : "=r"(tp) );
	return tp;
}

#else

#if __ARM_ARCH_4__ || __ARM_ARCH_4T__ || __ARM_ARCH == 4
#define BLX "mov lr,pc\n\tbx"
#else
#define BLX "blx"
#endif

static inline uintptr_t __get_tp()
{
	extern hidden uintptr_t __a_gettp_ptr;
	register uintptr_t tp __asm__("r0");
	__asm__ ( BLX " %1" : "=r"(tp) : "r"(__a_gettp_ptr) : "cc", "lr" );
	return tp;
}

#endif

#define TLS_ABOVE_TP
#define GAP_ABOVE_TP 8

#define MC_PC arm_pc
Commit	Line	Data
320054e8 DG	1	#if ((__ARM_ARCH_6K__ \|\| __ARM_ARCH_6KZ__ \|\| __ARM_ARCH_6ZK__) && !__thumb__) \
	2	\|\| __ARM_ARCH_7A__ \|\| __ARM_ARCH_7R__ \|\| __ARM_ARCH >= 7
	3
322bd4ff	4	static inline uintptr_t __get_tp()
320054e8	5	{
322bd4ff DG	6	uintptr_t tp;
	7	__asm__ ( "mrc p15,0,%0,c13,c0,3" : "=r"(tp) );
	8	return tp;
320054e8 DG	9	}
	10
	11	#else
	12
	13	#if __ARM_ARCH_4__ \|\| __ARM_ARCH_4T__ \|\| __ARM_ARCH == 4
	14	#define BLX "mov lr,pc\n\tbx"
	15	#else
	16	#define BLX "blx"
	17	#endif
	18
322bd4ff	19	static inline uintptr_t __get_tp()
320054e8 DG	20	{
320054e8 DG	21	extern hidden uintptr_t __a_gettp_ptr;
322bd4ff DG	22	register uintptr_t tp __asm__("r0");
	23	__asm__ ( BLX " %1" : "=r"(tp) : "r"(__a_gettp_ptr) : "cc", "lr" );
	24	return tp;
320054e8 DG	25	}
	26
	27	#endif
	28
	29	#define TLS_ABOVE_TP
	30	#define GAP_ABOVE_TP 8
320054e8 DG	31
320054e8 DG	32	#define MC_PC arm_pc