Commit-ID: 43f322b4ab3f203d8eefbdad6e58e1637221e4a7 Gitweb: http://git.kernel.org/tip/43f322b4ab3f203d8eefbdad6e58e1637221e4a7 Author: Riku Voipio <riku.voi...@linaro.org> AuthorDate: Thu, 16 Apr 2015 16:52:53 +0300 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Fri, 29 May 2015 12:43:41 -0300
perf tests: Switch from open to openat Multiple perf tests fail on arm64 due to missing open syscall: 2: detect open syscall event : FAILED! open(2) is a legacy syscall, replaced with openat(2) since 2.6.16. Thus new architectures in kernel, such as arm64, don't implement these legacy syscalls. The patch replaces all sys_enter_open events with sys_enter_openat, renames the related tests and test output to avoid confusion. Signed-off-by: Riku Voipio <riku.voi...@linaro.org> Reviewed-by: Ingo Molnar <mi...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/1429192375-13706-2-git-send-email-riku.voi...@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/tests/builtin-test.c | 12 ++++++------ tools/perf/tests/open-syscall-all-cpus.c | 12 ++++++------ tools/perf/tests/open-syscall-tp-fields.c | 6 +++--- tools/perf/tests/open-syscall.c | 14 +++++++------- tools/perf/tests/parse-events.c | 12 ++++++------ tools/perf/tests/tests.h | 6 +++--- 6 files changed, 31 insertions(+), 31 deletions(-) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index b5b87a2..87b9961 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -23,12 +23,12 @@ static struct test { .func = test__vmlinux_matches_kallsyms, }, { - .desc = "detect open syscall event", - .func = test__open_syscall_event, + .desc = "detect openat syscall event", + .func = test__openat_syscall_event, }, { - .desc = "detect open syscall event on all cpus", - .func = test__open_syscall_event_on_all_cpus, + .desc = "detect openat syscall event on all cpus", + .func = test__openat_syscall_event_on_all_cpus, }, { .desc = "read samples using the mmap interface", @@ -73,8 +73,8 @@ static struct test { .func = test__perf_evsel__tp_sched_test, }, { - .desc = "Generate and check syscalls:sys_enter_open event fields", - .func = test__syscall_open_tp_fields, + .desc = "Generate and check syscalls:sys_enter_openat event fields", + .func = test__syscall_openat_tp_fields, }, { .desc = "struct perf_event_attr setup", diff --git a/tools/perf/tests/open-syscall-all-cpus.c b/tools/perf/tests/open-syscall-all-cpus.c index 3ec885c..e34dfdf 100644 --- a/tools/perf/tests/open-syscall-all-cpus.c +++ b/tools/perf/tests/open-syscall-all-cpus.c @@ -4,12 +4,12 @@ #include "cpumap.h" #include "debug.h" -int test__open_syscall_event_on_all_cpus(void) +int test__openat_syscall_event_on_all_cpus(void) { int err = -1, fd, cpu; struct cpu_map *cpus; struct perf_evsel *evsel; - unsigned int nr_open_calls = 111, i; + unsigned int nr_openat_calls = 111, i; cpu_set_t cpu_set; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); char sbuf[STRERR_BUFSIZE]; @@ -27,7 +27,7 @@ int test__open_syscall_event_on_all_cpus(void) CPU_ZERO(&cpu_set); - evsel = perf_evsel__newtp("syscalls", "sys_enter_open"); + evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); if (evsel == NULL) { if (tracefs_configured()) pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); @@ -46,7 +46,7 @@ int test__open_syscall_event_on_all_cpus(void) } for (cpu = 0; cpu < cpus->nr; ++cpu) { - unsigned int ncalls = nr_open_calls + cpu; + unsigned int ncalls = nr_openat_calls + cpu; /* * XXX eventually lift this restriction in a way that * keeps perf building on older glibc installations @@ -66,7 +66,7 @@ int test__open_syscall_event_on_all_cpus(void) goto out_close_fd; } for (i = 0; i < ncalls; ++i) { - fd = open("/etc/passwd", O_RDONLY); + fd = openat(0, "/etc/passwd", O_RDONLY); close(fd); } CPU_CLR(cpus->map[cpu], &cpu_set); @@ -96,7 +96,7 @@ int test__open_syscall_event_on_all_cpus(void) break; } - expected = nr_open_calls + cpu; + expected = nr_openat_calls + cpu; if (evsel->counts->cpu[cpu].val != expected) { pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls on cpu %d, got %" PRIu64 "\n", expected, cpus->map[cpu], evsel->counts->cpu[cpu].val); diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c index 127dcae..6245221 100644 --- a/tools/perf/tests/open-syscall-tp-fields.c +++ b/tools/perf/tests/open-syscall-tp-fields.c @@ -5,7 +5,7 @@ #include "tests.h" #include "debug.h" -int test__syscall_open_tp_fields(void) +int test__syscall_openat_tp_fields(void) { struct record_opts opts = { .target = { @@ -29,7 +29,7 @@ int test__syscall_open_tp_fields(void) goto out; } - evsel = perf_evsel__newtp("syscalls", "sys_enter_open"); + evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); if (evsel == NULL) { pr_debug("%s: perf_evsel__newtp\n", __func__); goto out_delete_evlist; @@ -66,7 +66,7 @@ int test__syscall_open_tp_fields(void) /* * Generate the event: */ - open(filename, flags); + openat(AT_FDCWD, filename, flags); while (1) { int before = nr_events; diff --git a/tools/perf/tests/open-syscall.c b/tools/perf/tests/open-syscall.c index 07aa319..9f9491b 100644 --- a/tools/perf/tests/open-syscall.c +++ b/tools/perf/tests/open-syscall.c @@ -3,11 +3,11 @@ #include "debug.h" #include "tests.h" -int test__open_syscall_event(void) +int test__openat_syscall_event(void) { int err = -1, fd; struct perf_evsel *evsel; - unsigned int nr_open_calls = 111, i; + unsigned int nr_openat_calls = 111, i; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); char sbuf[STRERR_BUFSIZE]; @@ -16,7 +16,7 @@ int test__open_syscall_event(void) return -1; } - evsel = perf_evsel__newtp("syscalls", "sys_enter_open"); + evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); if (evsel == NULL) { if (tracefs_configured()) pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); @@ -34,8 +34,8 @@ int test__open_syscall_event(void) goto out_evsel_delete; } - for (i = 0; i < nr_open_calls; ++i) { - fd = open("/etc/passwd", O_RDONLY); + for (i = 0; i < nr_openat_calls; ++i) { + fd = openat(0, "/etc/passwd", O_RDONLY); close(fd); } @@ -44,9 +44,9 @@ int test__open_syscall_event(void) goto out_close_fd; } - if (evsel->counts->cpu[0].val != nr_open_calls) { + if (evsel->counts->cpu[0].val != nr_openat_calls) { pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n", - nr_open_calls, evsel->counts->cpu[0].val); + nr_openat_calls, evsel->counts->cpu[0].val); goto out_close_fd; } diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 82d2a16..d76963f 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -427,7 +427,7 @@ static int test__checkevent_list(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_hv", !evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip); - /* syscalls:sys_enter_open:k */ + /* syscalls:sys_enter_openat:k */ evsel = perf_evsel__next(evsel); TEST_ASSERT_VAL("wrong type", PERF_TYPE_TRACEPOINT == evsel->attr.type); TEST_ASSERT_VAL("wrong sample_type", @@ -665,7 +665,7 @@ static int test__group3(struct perf_evlist *evlist __maybe_unused) TEST_ASSERT_VAL("wrong number of entries", 5 == evlist->nr_entries); TEST_ASSERT_VAL("wrong number of groups", 2 == evlist->nr_groups); - /* group1 syscalls:sys_enter_open:H */ + /* group1 syscalls:sys_enter_openat:H */ evsel = leader = perf_evlist__first(evlist); TEST_ASSERT_VAL("wrong type", PERF_TYPE_TRACEPOINT == evsel->attr.type); TEST_ASSERT_VAL("wrong sample_type", @@ -1293,7 +1293,7 @@ struct evlist_test { static struct evlist_test test__events[] = { { - .name = "syscalls:sys_enter_open", + .name = "syscalls:sys_enter_openat", .check = test__checkevent_tracepoint, .id = 0, }, @@ -1353,7 +1353,7 @@ static struct evlist_test test__events[] = { .id = 11, }, { - .name = "syscalls:sys_enter_open:k", + .name = "syscalls:sys_enter_openat:k", .check = test__checkevent_tracepoint_modifier, .id = 12, }, @@ -1408,7 +1408,7 @@ static struct evlist_test test__events[] = { .id = 22, }, { - .name = "r1,syscalls:sys_enter_open:k,1:1:hp", + .name = "r1,syscalls:sys_enter_openat:k,1:1:hp", .check = test__checkevent_list, .id = 23, }, @@ -1443,7 +1443,7 @@ static struct evlist_test test__events[] = { .id = 29, }, { - .name = "group1{syscalls:sys_enter_open:H,cycles:kppp},group2{cycles,1:3}:G,instructions:u", + .name = "group1{syscalls:sys_enter_openat:H,cycles:kppp},group2{cycles,1:3}:G,instructions:u", .check = test__group3, .id = 30, }, diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 87bcaf1..8e5038b 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -26,14 +26,14 @@ enum { /* Tests */ int test__vmlinux_matches_kallsyms(void); -int test__open_syscall_event(void); -int test__open_syscall_event_on_all_cpus(void); +int test__openat_syscall_event(void); +int test__openat_syscall_event_on_all_cpus(void); int test__basic_mmap(void); int test__PERF_RECORD(void); int test__rdpmc(void); int test__perf_evsel__roundtrip_name_test(void); int test__perf_evsel__tp_sched_test(void); -int test__syscall_open_tp_fields(void); +int test__syscall_openat_tp_fields(void); int test__pmu(void); int test__attr(void); int test__dso_data(void); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
