diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c b/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c index 67e86f8d8677..3948da12a528 100644 --- a/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c +++ b/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c @@ -6,6 +6,30 @@ static int *pfd_array; static int cpu_cnt; +static bool is_hypervisor(void) +{ + char *line = NULL; + bool ret = false; + size_t len; + FILE *fp; + + fp = fopen("/proc/cpuinfo", "r"); + if (!fp) + return false; + + while (getline(&line, &len, fp) != -1) { + if (!strncmp(line, "flags", 5)) { + if (strstr(line, "hypervisor") != NULL) + ret = true; + break; + } + } + + free(line); + fclose(fp); + return ret; +} + static int create_perf_events(void) { struct perf_event_attr attr = {0}; @@ -49,11 +73,17 @@ static void close_perf_events(void) free(pfd_array); } -void test_get_branch_snapshot(void) +void serial_test_get_branch_snapshot(void) { struct get_branch_snapshot *skel = NULL; int err; + /* Skip the test before we fix LBR snapshot for hypervisor. */ + if (is_hypervisor()) { + test__skip(); + return; + } + if (create_perf_events()) { test__skip(); /* system doesn't support LBR */ goto cleanup; @@ -67,9 +97,10 @@ void test_get_branch_snapshot(void) if (!ASSERT_OK(err, "kallsyms_find")) goto cleanup; - err = kallsyms_find_next("bpf_testmod_loop_test", &skel->bss->address_high); - if (!ASSERT_OK(err, "kallsyms_find_next")) - goto cleanup; + /* Just a guess for the end of this function, as module functions + * in /proc/kallsyms could come in any order. + */ + skel->bss->address_high = skel->bss->address_low + 128; err = get_branch_snapshot__attach(skel); if (!ASSERT_OK(err, "get_branch_snapshot__attach")) |