From 7b2567c1f57c059de29d3f2ca03aca84473865c8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 3 Feb 2010 16:52:04 -0200 Subject: perf build-id: Move the routine to find DSOs with hits to the lib MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Because 'perf record' will have to find the build-ids in after we stop recording, so as to reduce even more the impact in the workload while we do the measurement. Signed-off-by: Arnaldo Carvalho de Melo Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1265223128-11786-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 2 ++ tools/perf/builtin-buildid-list.c | 31 ++----------------------------- tools/perf/util/build-id.c | 39 +++++++++++++++++++++++++++++++++++++++ tools/perf/util/build-id.h | 8 ++++++++ 4 files changed, 51 insertions(+), 29 deletions(-) create mode 100644 tools/perf/util/build-id.c create mode 100644 tools/perf/util/build-id.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 42969303e20..3a5fb36ccc9 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -357,6 +357,7 @@ LIB_H += util/include/asm/uaccess.h LIB_H += perf.h LIB_H += util/cache.h LIB_H += util/callchain.h +LIB_H += util/build-id.h LIB_H += util/debug.h LIB_H += util/debugfs.h LIB_H += util/event.h @@ -390,6 +391,7 @@ LIB_H += util/probe-event.h LIB_OBJS += util/abspath.o LIB_OBJS += util/alias.o +LIB_OBJS += util/build-id.o LIB_OBJS += util/config.o LIB_OBJS += util/ctype.o LIB_OBJS += util/debugfs.o diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c index 431f204bde6..d0675c02f81 100644 --- a/tools/perf/builtin-buildid-list.c +++ b/tools/perf/builtin-buildid-list.c @@ -8,6 +8,7 @@ */ #include "builtin.h" #include "perf.h" +#include "util/build-id.h" #include "util/cache.h" #include "util/debug.h" #include "util/parse-options.h" @@ -33,34 +34,6 @@ static const struct option options[] = { OPT_END() }; -static int build_id_list__process_event(event_t *event, - struct perf_session *session) -{ - struct addr_location al; - u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; - struct thread *thread = perf_session__findnew(session, event->ip.pid); - - if (thread == NULL) { - pr_err("problem processing %d event, skipping it.\n", - event->header.type); - return -1; - } - - thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, - event->ip.ip, &al); - - if (al.map != NULL) - al.map->dso->hit = 1; - - return 0; -} - -static struct perf_event_ops build_id_list__event_ops = { - .sample = build_id_list__process_event, - .mmap = event__process_mmap, - .fork = event__process_task, -}; - static int __cmd_buildid_list(void) { int err = -1; @@ -71,7 +44,7 @@ static int __cmd_buildid_list(void) return -1; if (with_hits) - perf_session__process_events(session, &build_id_list__event_ops); + perf_session__process_events(session, &build_id__mark_dso_hit_ops); dsos__fprintf_buildid(stdout, with_hits); diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c new file mode 100644 index 00000000000..04904b35ba8 --- /dev/null +++ b/tools/perf/util/build-id.c @@ -0,0 +1,39 @@ +/* + * build-id.c + * + * build-id support + * + * Copyright (C) 2009, 2010 Red Hat Inc. + * Copyright (C) 2009, 2010 Arnaldo Carvalho de Melo + */ +#include "build-id.h" +#include "event.h" +#include "symbol.h" +#include + +static int build_id__mark_dso_hit(event_t *event, struct perf_session *session) +{ + struct addr_location al; + u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + struct thread *thread = perf_session__findnew(session, event->ip.pid); + + if (thread == NULL) { + pr_err("problem processing %d event, skipping it.\n", + event->header.type); + return -1; + } + + thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION, + event->ip.ip, &al); + + if (al.map != NULL) + al.map->dso->hit = 1; + + return 0; +} + +struct perf_event_ops build_id__mark_dso_hit_ops = { + .sample = build_id__mark_dso_hit, + .mmap = event__process_mmap, + .fork = event__process_task, +}; diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h new file mode 100644 index 00000000000..1d981d63cf9 --- /dev/null +++ b/tools/perf/util/build-id.h @@ -0,0 +1,8 @@ +#ifndef PERF_BUILD_ID_H_ +#define PERF_BUILD_ID_H_ 1 + +#include "session.h" + +extern struct perf_event_ops build_id__mark_dso_hit_ops; + +#endif -- cgit v1.2.3