diff options
author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-11-11 04:51:03 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-11-11 07:30:17 +0100 |
commit | 8671dab9d5b2f0b444b8d09792384dccbfd43d14 (patch) | |
tree | 399d45fd784e7210bc1847ab2643731243f67f1d /tools | |
parent | de8967214d8ce536161a1ad6538ad1cb82e7428d (diff) |
perf tools: Move the build-id storage operations to headers
So that it makes easier to control it. Especially because we
plan to give it a feature section.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
LKML-Reference: <1257911467-28276-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/builtin-record.c | 32 | ||||
-rw-r--r-- | tools/perf/util/header.c | 41 | ||||
-rw-r--r-- | tools/perf/util/header.h | 2 |
3 files changed, 41 insertions, 34 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 9f98b86e747..c35e61b3098 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -378,39 +378,11 @@ static void open_counters(int cpu, pid_t pid) nr_cpu++; } -static bool write_buildid_table(void) -{ - struct dso *pos; - bool have_buildid = false; - - list_for_each_entry(pos, &dsos, node) { - struct build_id_event b; - size_t len; - - if (filename__read_build_id(pos->long_name, - &b.build_id, - sizeof(b.build_id)) < 0) - continue; - have_buildid = true; - memset(&b.header, 0, sizeof(b.header)); - len = strlen(pos->long_name) + 1; - len = ALIGN(len, 64); - b.header.size = sizeof(b) + len; - write_output(&b, sizeof(b)); - write_output(pos->long_name, len); - } - - return have_buildid; -} - static void atexit_header(void) { header->data_size += bytes_written; - if (write_buildid_table()) - perf_header__set_feat(header, HEADER_BUILD_ID); - - perf_header__write(header, output); + perf_header__write(header, output, true); } static int __cmd_record(int argc, const char **argv) @@ -487,7 +459,7 @@ static int __cmd_record(int argc, const char **argv) } if (file_new) - perf_header__write(header, output); + perf_header__write(header, output, false); if (!system_wide) event__synthesize_thread(pid, process_synthesized_event); diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 050f543fd96..a4d0bbef9a4 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2,11 +2,13 @@ #include <unistd.h> #include <stdio.h> #include <stdlib.h> +#include <linux/list.h> #include "util.h" #include "header.h" #include "../perf.h" #include "trace-event.h" +#include "symbol.h" /* * Create new perf.data header attribute: @@ -172,7 +174,33 @@ static void do_write(int fd, void *buf, size_t size) } } -static void perf_header__adds_write(struct perf_header *self, int fd) +static bool write_buildid_table(int fd) +{ + struct dso *pos; + bool have_buildid = false; + + list_for_each_entry(pos, &dsos, node) { + struct build_id_event b; + size_t len; + + if (filename__read_build_id(pos->long_name, + &b.build_id, + sizeof(b.build_id)) < 0) + continue; + have_buildid = true; + memset(&b.header, 0, sizeof(b.header)); + len = strlen(pos->long_name) + 1; + len = ALIGN(len, 64); + b.header.size = sizeof(b) + len; + do_write(fd, &b, sizeof(b)); + do_write(fd, pos->long_name, len); + } + + return have_buildid; +} + +static void +perf_header__adds_write(struct perf_header *self, int fd, bool at_exit) { struct perf_file_section trace_sec; u64 cur_offset = lseek(fd, 0, SEEK_CUR); @@ -196,9 +224,16 @@ static void perf_header__adds_write(struct perf_header *self, int fd) */ cur_offset = lseek(fd, trace_sec.offset + trace_sec.size, SEEK_SET); } + + if (at_exit) { + lseek(fd, self->data_offset + self->data_size, SEEK_SET); + if (write_buildid_table(fd)) + perf_header__set_feat(self, HEADER_BUILD_ID); + lseek(fd, cur_offset, SEEK_SET); + } }; -void perf_header__write(struct perf_header *self, int fd) +void perf_header__write(struct perf_header *self, int fd, bool at_exit) { struct perf_file_header f_header; struct perf_file_attr f_attr; @@ -236,7 +271,7 @@ void perf_header__write(struct perf_header *self, int fd) if (events) do_write(fd, events, self->event_size); - perf_header__adds_write(self, fd); + perf_header__adds_write(self, fd, at_exit); self->data_offset = lseek(fd, 0, SEEK_CUR); diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index 2f233c5db7e..77186c9e605 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -33,7 +33,7 @@ struct perf_header { }; struct perf_header *perf_header__read(int fd); -void perf_header__write(struct perf_header *self, int fd); +void perf_header__write(struct perf_header *self, int fd, bool at_exit); void perf_header__add_attr(struct perf_header *self, struct perf_header_attr *attr); |