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authorStefan Liebler <stli@linux.vnet.ibm.com>2018-04-19 12:38:37 +0200
committerStefan Liebler <stli@linux.vnet.ibm.com>2018-04-19 12:45:11 +0200
commit0085be1415a38b40a5a1a12e49368498f1687380 (patch)
tree5f8d86d42cf09bf2eced933e2463f0c34e5d9461 /scripts/test_printers_common.py
parentda796524f8d64df3113e3c538adf285cf3ba041c (diff)
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Disable lock elision for mutex pretty printer tests.
If e.g. the testcase nptl/test-mutex-printers is run with enabled lock-elision, it fails on s390x with: Error: Response does not match the expected pattern. Command: print *mutex Expected pattern: pthread_mutex_t Response: No symbol "mutex" in current context. (gdb) See https://www.sourceware.org/ml/libc-alpha/2018-03/msg00583.html for more details. In fact the mutex pretty printer tests rely on looking at the internal details of the lock, thus we disable it by setting up the GLIB_TUNABLES environment variable inside gdb. ChangeLog: * scripts/test_printers_common.py (init_test): Disable lock elision.
Diffstat (limited to 'scripts/test_printers_common.py')
-rw-r--r--scripts/test_printers_common.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/scripts/test_printers_common.py b/scripts/test_printers_common.py
index 73ca525..cf4de5a 100644
--- a/scripts/test_printers_common.py
+++ b/scripts/test_printers_common.py
@@ -171,6 +171,9 @@ def init_test(test_bin, printer_files, printer_names):
# Finally, load the test binary.
test('file {0}'.format(test_bin))
+ # Disable lock elision.
+ test('set environment GLIBC_TUNABLES glibc.elision.enable=0')
+
def go_to_main():
"""Executes a gdb 'start' command, which takes us to main."""