From 2b2b2c68c64fb9db392940b42355944064f2a4ca Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 12 Aug 2014 15:40:38 +0900 Subject: [PATCH] perf kmem: Move session handling out of __cmd_kmem() This is a preparation of fixing dso__load_kernel_sym(). It needs a session info before calling symbol__init(). Signed-off-by: Namhyung Kim Cc: Adrian Hunter Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Minchan Kim Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1407825645-24586-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-kmem.c | 49 ++++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 21 deletions(-) diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 84b82397a28e..349d9b46098e 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -405,10 +405,9 @@ static void sort_result(void) __sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort); } -static int __cmd_kmem(void) +static int __cmd_kmem(struct perf_session *session) { int err = -EINVAL; - struct perf_session *session; const struct perf_evsel_str_handler kmem_tracepoints[] = { { "kmem:kmalloc", perf_evsel__process_alloc_event, }, { "kmem:kmem_cache_alloc", perf_evsel__process_alloc_event, }, @@ -417,31 +416,22 @@ static int __cmd_kmem(void) { "kmem:kfree", perf_evsel__process_free_event, }, { "kmem:kmem_cache_free", perf_evsel__process_free_event, }, }; - struct perf_data_file file = { - .path = input_name, - .mode = PERF_DATA_MODE_READ, - }; - - session = perf_session__new(&file, false, &perf_kmem); - if (session == NULL) - return -ENOMEM; if (!perf_session__has_traces(session, "kmem record")) - goto out_delete; + goto out; if (perf_session__set_tracepoints_handlers(session, kmem_tracepoints)) { pr_err("Initializing perf session tracepoint handlers failed\n"); - return -1; + goto out; } setup_pager(); err = perf_session__process_events(session, &perf_kmem); if (err != 0) - goto out_delete; + goto out; sort_result(); print_result(session); -out_delete: - perf_session__delete(session); +out: return err; } @@ -688,29 +678,46 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused) NULL, NULL }; + struct perf_session *session; + struct perf_data_file file = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + }; + int ret = -1; + argc = parse_options_subcommand(argc, argv, kmem_options, kmem_subcommands, kmem_usage, 0); if (!argc) usage_with_options(kmem_usage, kmem_options); - symbol__init(); - if (!strncmp(argv[0], "rec", 3)) { + symbol__init(); return __cmd_record(argc, argv); - } else if (!strcmp(argv[0], "stat")) { + } + + session = perf_session__new(&file, false, &perf_kmem); + if (session == NULL) + return -ENOMEM; + + symbol__init(); + + if (!strcmp(argv[0], "stat")) { if (cpu__setup_cpunode_map()) - return -1; + goto out_delete; if (list_empty(&caller_sort)) setup_sorting(&caller_sort, default_sort_order); if (list_empty(&alloc_sort)) setup_sorting(&alloc_sort, default_sort_order); - return __cmd_kmem(); + ret = __cmd_kmem(session); } else usage_with_options(kmem_usage, kmem_options); - return 0; +out_delete: + perf_session__delete(session); + + return ret; } -- 2.20.1