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perf test: Test 73 Sig_trap fails on s390

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In Linux next commit 5504f67944484495 ("perf test sigtrap: Add basic
stress test for sigtrap handling") introduced the new test which uses
breakpoint events.  These events are not supported on s390 and PowerPC
and always fail:

  # perf test -F 73
  73: Sigtrap                                                         : FAILED!
  #

Fix it the same way as in the breakpoint tests in file
tests/bp_account.c where these type of tests are skipped on s390 and
PowerPC platforms.

With this patch skip this test on both platforms.

Output after:

  # perf test -F 73
  73: Sigtrap
  #

Fixes: 5504f67944484495 ("perf test sigtrap: Add basic stress test for sigtrap handling")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20211216151454.752066-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Thomas Richter 2021-12-16 16:14:54 +01:00 committed by Arnaldo Carvalho de Melo
parent 9c5c605219
commit a840974e96
1 changed files with 18 additions and 0 deletions
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18
tools/perf/tests/sigtrap.c
View File

@ -22,6 +22,19 @@
#include "tests.h" #include "tests.h"
#include "../perf-sys.h" #include "../perf-sys.h"
/*
* PowerPC and S390 do not support creation of instruction breakpoints using the
* perf_event interface.
*
* Just disable the test for these architectures until these issues are
* resolved.
*/
#if defined(__powerpc__) || defined(__s390x__)
#define BP_ACCOUNT_IS_SUPPORTED 0
#else
#define BP_ACCOUNT_IS_SUPPORTED 1
#endif
#define NUM_THREADS 5 #define NUM_THREADS 5
static struct { static struct {
@ -122,6 +135,11 @@ static int test__sigtrap(struct test_suite *test __maybe_unused, int subtest __m
char sbuf[STRERR_BUFSIZE]; char sbuf[STRERR_BUFSIZE];
int i, fd, ret = TEST_FAIL; int i, fd, ret = TEST_FAIL;
if (!BP_ACCOUNT_IS_SUPPORTED) {
pr_debug("Test not supported on this architecture");
return TEST_SKIP;
}
pthread_barrier_init(&barrier, NULL, NUM_THREADS + 1); pthread_barrier_init(&barrier, NULL, NUM_THREADS + 1);
action.sa_flags = SA_SIGINFO | SA_NODEFER; action.sa_flags = SA_SIGINFO | SA_NODEFER;