diff mbox series

selftests: timens: Fix gettime_perf to work on powerpc

Message ID 469f37ab91984309eb68c0fb47e8438cdf5b6463.1617198956.git.christophe.leroy@csgroup.eu (mailing list archive)
State Accepted
Headers show
Series selftests: timens: Fix gettime_perf to work on powerpc | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (87d76f542a24ecfa797e9bd3bb56c0f19aabff57)
snowpatch_ozlabs/build-ppc64le success Build succeeded
snowpatch_ozlabs/build-ppc64be success Build succeeded
snowpatch_ozlabs/build-ppc64e success Build succeeded
snowpatch_ozlabs/build-pmac32 success Build succeeded
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
snowpatch_ozlabs/needsstable success Patch has no Fixes tags

Commit Message

Christophe Leroy March 31, 2021, 1:59 p.m. UTC
On powerpc:
- VDSO library is named linux-vdso32.so.1 or linux-vdso64.so.1
- clock_gettime is named __kernel_clock_gettime()

Ensure gettime_perf tries these names before giving up.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 tools/testing/selftests/timens/gettime_perf.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Michael Ellerman April 21, 2021, 1:08 p.m. UTC | #1
On Wed, 31 Mar 2021 13:59:17 +0000 (UTC), Christophe Leroy wrote:
> On powerpc:
> - VDSO library is named linux-vdso32.so.1 or linux-vdso64.so.1
> - clock_gettime is named __kernel_clock_gettime()
> 
> Ensure gettime_perf tries these names before giving up.

Applied to powerpc/next.

[1/1] selftests: timens: Fix gettime_perf to work on powerpc
      https://git.kernel.org/powerpc/c/f56607e85ee38f2a5bb7096e24e2d40f35d714f9

cheers
diff mbox series

Patch

diff --git a/tools/testing/selftests/timens/gettime_perf.c b/tools/testing/selftests/timens/gettime_perf.c
index 7bf841a3967b..6b13dc277724 100644
--- a/tools/testing/selftests/timens/gettime_perf.c
+++ b/tools/testing/selftests/timens/gettime_perf.c
@@ -25,12 +25,20 @@  static void fill_function_pointers(void)
 	if (!vdso)
 		vdso = dlopen("linux-gate.so.1",
 			      RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
+	if (!vdso)
+		vdso = dlopen("linux-vdso32.so.1",
+			      RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
+	if (!vdso)
+		vdso = dlopen("linux-vdso64.so.1",
+			      RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
 	if (!vdso) {
 		pr_err("[WARN]\tfailed to find vDSO\n");
 		return;
 	}
 
 	vdso_clock_gettime = (vgettime_t)dlsym(vdso, "__vdso_clock_gettime");
+	if (!vdso_clock_gettime)
+		vdso_clock_gettime = (vgettime_t)dlsym(vdso, "__kernel_clock_gettime");
 	if (!vdso_clock_gettime)
 		pr_err("Warning: failed to find clock_gettime in vDSO\n");