#include #include #include "thread_map.h" #include "evsel.h" #include "debug.h" #include "tests.h" int test__openat_syscall_event(int subtest __maybe_unused) { int err = -1, fd; struct perf_evsel *evsel; unsigned int nr_openat_calls = 111, i; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); char sbuf[STRERR_BUFSIZE]; char errbuf[BUFSIZ]; if (threads == NULL) { pr_debug("thread_map__new\n"); return -1; } evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); if (IS_ERR(evsel)) { tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat"); pr_debug("%s\n", errbuf); goto out_thread_map_delete; } if (perf_evsel__open_per_thread(evsel, threads) < 0) { pr_debug("failed to open counter: %s, " "tweak /proc/sys/kernel/perf_event_paranoid?\n", str_error_r(errno, sbuf, sizeof(sbuf))); goto out_evsel_delete; } for (i = 0; i < nr_openat_calls; ++i) { fd = openat(0, "/etc/passwd", O_RDONLY); close(fd); } if (perf_evsel__read_on_cpu(evsel, 0, 0) < 0) { pr_debug("perf_evsel__read_on_cpu\n"); goto out_close_fd; } if (perf_counts(evsel->counts, 0, 0)->val != nr_openat_calls) { pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls, got %" PRIu64 "\n", nr_openat_calls, perf_counts(evsel->counts, 0, 0)->val); goto out_close_fd; } err = 0; out_close_fd: perf_evsel__close_fd(evsel, 1, threads->nr); out_evsel_delete: perf_evsel__delete(evsel); out_thread_map_delete: thread_map__put(threads); return err; } r> summaryrefslogtreecommitdiff
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authorLaxman Dewangan <ldewangan@nvidia.com>2016-03-13 18:46:57 +0530
committerMark Brown <broonie@kernel.org>2016-05-30 16:29:34 +0100
commitf5a6d3516362f85d6a07e930bc10cd4b59f306c7 (patch)
tree7c9d79b686aedd9a8e1836bfd9e81cc2efcf7a8f /tools/lib/traceevent/Build
parent1a695a905c18548062509178b98bc91e67510864 (diff)
regulator: fixed: Remove workaround to handle of_get_named_gpio() return
The GPIO interface of_get_named_gpio() has implemented the proper error returns even EPROBE_DEFER and hence caller need not to implement any workaround for translating the returned error. Remove the workaround implemented to handle the return of of_get_named_gpio(). Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/lib/traceevent/Build')