From 12f8f74b2a4d26c4facfa7ef99487cf0930f6ef7 Mon Sep 17 00:00:00 2001 From: Zheng Liu Date: Thu, 8 Nov 2012 16:58:46 -0800 Subject: [PATCH] perf test: fix a build error on builtin-test MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Recently I build perf and get a build error on builtin-test.c. The error is as following: $ make CC perf.o CC builtin-test.o cc1: warnings being treated as errors builtin-test.c: In function ‘sched__get_first_possible_cpu’: builtin-test.c:977: warning: implicit declaration of function ‘CPU_ALLOC’ builtin-test.c:977: warning: nested extern declaration of ‘CPU_ALLOC’ builtin-test.c:977: warning: assignment makes pointer from integer without a cast builtin-test.c:978: warning: implicit declaration of function ‘CPU_ALLOC_SIZE’ builtin-test.c:978: warning: nested extern declaration of ‘CPU_ALLOC_SIZE’ builtin-test.c:979: warning: implicit declaration of function ‘CPU_ZERO_S’ builtin-test.c:979: warning: nested extern declaration of ‘CPU_ZERO_S’ builtin-test.c:982: warning: implicit declaration of function ‘CPU_FREE’ builtin-test.c:982: warning: nested extern declaration of ‘CPU_FREE’ builtin-test.c:992: warning: implicit declaration of function ‘CPU_ISSET_S’ builtin-test.c:992: warning: nested extern declaration of ‘CPU_ISSET_S’ builtin-test.c:998: warning: implicit declaration of function ‘CPU_CLR_S’ builtin-test.c:998: warning: nested extern declaration of ‘CPU_CLR_S’ make: *** [builtin-test.o] Error 1 This problem is introduced in 3e7c439a. CPU_ALLOC and related macros are missing in sched__get_first_possible_cpu function. In 54489c18, commiter mentioned that CPU_ALLOC has been removed. So CPU_ALLOC calls in this function are removed to let perf to be built. Signed-off-by: Vinson Lee Signed-off-by: Zheng Liu Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Vinson Lee Cc: Zheng Liu Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1352422726-31114-1-git-send-email-vlee@twitter.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/builtin-test.c | 38 +++++++++++---------------------- 1 file changed, 12 insertions(+), 26 deletions(-) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index b5a544d1b381..5d4354e24457 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -605,19 +605,13 @@ out_free_threads: #undef nsyscalls } -static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t **maskp, - size_t *sizep) +static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t *maskp) { - cpu_set_t *mask; - size_t size; int i, cpu = -1, nrcpus = 1024; realloc: - mask = CPU_ALLOC(nrcpus); - size = CPU_ALLOC_SIZE(nrcpus); - CPU_ZERO_S(size, mask); + CPU_ZERO(maskp); - if (sched_getaffinity(pid, size, mask) == -1) { - CPU_FREE(mask); + if (sched_getaffinity(pid, sizeof(*maskp), maskp) == -1) { if (errno == EINVAL && nrcpus < (1024 << 8)) { nrcpus = nrcpus << 2; goto realloc; @@ -627,19 +621,14 @@ realloc: } for (i = 0; i < nrcpus; i++) { - if (CPU_ISSET_S(i, size, mask)) { - if (cpu == -1) { + if (CPU_ISSET(i, maskp)) { + if (cpu == -1) cpu = i; - *maskp = mask; - *sizep = size; - } else - CPU_CLR_S(i, size, mask); + else + CPU_CLR(i, maskp); } } - if (cpu == -1) - CPU_FREE(mask); - return cpu; } @@ -654,8 +643,8 @@ static int test__PERF_RECORD(void) .freq = 10, .mmap_pages = 256, }; - cpu_set_t *cpu_mask = NULL; - size_t cpu_mask_size = 0; + cpu_set_t cpu_mask; + size_t cpu_mask_size = sizeof(cpu_mask); struct perf_evlist *evlist = perf_evlist__new(NULL, NULL); struct perf_evsel *evsel; struct perf_sample sample; @@ -719,8 +708,7 @@ static int test__PERF_RECORD(void) evsel->attr.sample_type |= PERF_SAMPLE_TIME; perf_evlist__config_attrs(evlist, &opts); - err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask, - &cpu_mask_size); + err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask); if (err < 0) { pr_debug("sched__get_first_possible_cpu: %s\n", strerror(errno)); goto out_delete_evlist; @@ -731,9 +719,9 @@ static int test__PERF_RECORD(void) /* * So that we can check perf_sample.cpu on all the samples. */ - if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, cpu_mask) < 0) { + if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) { pr_debug("sched_setaffinity: %s\n", strerror(errno)); - goto out_free_cpu_mask; + goto out_delete_evlist; } /* @@ -917,8 +905,6 @@ found_exit: } out_err: perf_evlist__munmap(evlist); -out_free_cpu_mask: - CPU_FREE(cpu_mask); out_delete_evlist: perf_evlist__delete(evlist); out: -- 2.30.2