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/* $NetBSD: __aeabi_read_tp.S,v 1.5 2013/08/19 22:10:51 matt Exp $ */
#undef __thumb__
#include "SYS.h"
/*
* Implementations of this function should corrupt only the result register
* (r0) and the non-parameter integer core registers allowed to be corrupted
* by the [AAPCS] (ip, lr, and CPSR).
*/
ARM_ENTRY(__aeabi_read_tp)
mrc p15, 0, r0, c13, c0, 3
#ifndef _ARM_ARCH_6
cmp r0, #0 /* was it zero? */
RETc(ne) /* return it's not zero */
mov ip, r1 /* syscall zeroes r1 */
SYSTRAP(_lwp_getprivate) /* can't fail */
mov r1, ip /* restore r1 */
#endif
RET
END(__aeabi_read_tp)
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