From 743f3544fffb9662aaf550c8358a8c1b6fcae707 Mon Sep 17 00:00:00 2001
From: Sandipan Das <sandipan@linux.ibm.com>
Date: Mon, 27 Jul 2020 09:30:39 +0530
Subject: [PATCH] selftests/powerpc: Add wrapper for gettid
References: bsc#1184934 ltc#191460
Patch-mainline: v5.9-rc1
Git-commit: 743f3544fffb9662aaf550c8358a8c1b6fcae707
The gettid() syscall wrapper was first introduced in
glibc 2.30. This adds a wrapper for use in distros
running older versions.
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8ca3b0eeda989707815d1cf337cc33f090408965.1595821792.git.sandipan@linux.ibm.com
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
tools/testing/selftests/powerpc/include/utils.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h
index 69d16875802d..71d2924f5b8b 100644
--- a/tools/testing/selftests/powerpc/include/utils.h
+++ b/tools/testing/selftests/powerpc/include/utils.h
@@ -42,6 +42,16 @@ int perf_event_enable(int fd);
int perf_event_disable(int fd);
int perf_event_reset(int fd);
+#if !defined(__GLIBC_PREREQ) || !__GLIBC_PREREQ(2, 30)
+#include <unistd.h>
+#include <sys/syscall.h>
+
+static inline pid_t gettid(void)
+{
+ return syscall(SYS_gettid);
+}
+#endif
+
static inline bool have_hwcap(unsigned long ftr)
{
return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
--
2.26.2