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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 08:19:03 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 08:19:03 -0700 |
commit | 4d7b4ac22fbec1a03206c6cde353f2fd6942f828 (patch) | |
tree | 2d96a9e9c28cf6fa628a278decc00ad55a8b043b /tools/perf/util/trace-event-info.c | |
parent | 3aaf51ace5975050ab43c7d4d7e439e0ae7d13d7 (diff) | |
parent | 94f3ca95787ada3d64339a4ecb2754236ab563f6 (diff) | |
download | talos-op-linux-4d7b4ac22fbec1a03206c6cde353f2fd6942f828.tar.gz talos-op-linux-4d7b4ac22fbec1a03206c6cde353f2fd6942f828.zip |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (311 commits)
perf tools: Add mode to build without newt support
perf symbols: symbol inconsistency message should be done only at verbose=1
perf tui: Add explicit -lslang option
perf options: Type check all the remaining OPT_ variants
perf options: Type check OPT_BOOLEAN and fix the offenders
perf options: Check v type in OPT_U?INTEGER
perf options: Introduce OPT_UINTEGER
perf tui: Add workaround for slang < 2.1.4
perf record: Fix bug mismatch with -c option definition
perf options: Introduce OPT_U64
perf tui: Add help window to show key associations
perf tui: Make <- exit menus too
perf newt: Add single key shortcuts for zoom into DSO and threads
perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressed
perf newt: Fix the 'A'/'a' shortcut for annotate
perf newt: Make <- exit the ui_browser
x86, perf: P4 PMU - fix counters management logic
perf newt: Make <- zoom out filters
perf report: Report number of events, not samples
perf hist: Clarify events_stats fields usage
...
Fix up trivial conflicts in kernel/fork.c and tools/perf/builtin-record.c
Diffstat (limited to 'tools/perf/util/trace-event-info.c')
-rw-r--r-- | tools/perf/util/trace-event-info.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 5ea8973ad331..b1572601286c 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -154,10 +154,17 @@ static void put_tracing_file(char *file) free(file); } +static ssize_t calc_data_size; + static ssize_t write_or_die(const void *buf, size_t len) { int ret; + if (calc_data_size) { + calc_data_size += len; + return len; + } + ret = write(output_fd, buf, len); if (ret < 0) die("writing to '%s'", output_file); @@ -480,6 +487,17 @@ get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events) return nr_tracepoints > 0 ? path.next : NULL; } +bool have_tracepoints(struct perf_event_attr *pattrs, int nb_events) +{ + int i; + + for (i = 0; i < nb_events; i++) + if (pattrs[i].type == PERF_TYPE_TRACEPOINT) + return true; + + return false; +} + int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events) { char buf[BUFSIZ]; @@ -526,3 +544,20 @@ int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events) return 0; } + +ssize_t read_tracing_data_size(int fd, struct perf_event_attr *pattrs, + int nb_events) +{ + ssize_t size; + int err = 0; + + calc_data_size = 1; + err = read_tracing_data(fd, pattrs, nb_events); + size = calc_data_size - 1; + calc_data_size = 0; + + if (err < 0) + return err; + + return size; +} |