summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/rseq/rseq-ppc-thread-pointer.h
blob: 263eee84fb7605e27ee4b3f397f9dee83ddf216f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
/*
 * rseq-ppc-thread-pointer.h
 *
 * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _RSEQ_PPC_THREAD_POINTER
#define _RSEQ_PPC_THREAD_POINTER

#ifdef __cplusplus
extern "C" {
#endif

static inline void *rseq_thread_pointer(void)
{
#ifdef __powerpc64__
	register void *__result asm ("r13");
#else
	register void *__result asm ("r2");
#endif
	asm ("" : "=r" (__result));
	return __result;
}

#ifdef __cplusplus
}
#endif

#endif