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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 08:19:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 08:19:03 -0700
commit4d7b4ac22fbec1a03206c6cde353f2fd6942f828 (patch)
tree2d96a9e9c28cf6fa628a278decc00ad55a8b043b /tools/perf/util/trace-event-info.c
parent3aaf51ace5975050ab43c7d4d7e439e0ae7d13d7 (diff)
parent94f3ca95787ada3d64339a4ecb2754236ab563f6 (diff)
downloadtalos-op-linux-4d7b4ac22fbec1a03206c6cde353f2fd6942f828.tar.gz
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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.c35
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;
+}
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