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authorNamhyung Kim <namhyung@gmail.com>2011-12-12 19:16:50 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-12-20 19:28:13 +0400
commit6581f6e35f7d0338f699fce660adb48e863f2b59 (patch)
tree415d6b105e4f714f7d5c1cd6a297eadc45e95e8f /tools/perf/builtin-report.c
parentf3bda2c9a689b38c059f7cb2d761ff58a2996370 (diff)
downloadlinux-6581f6e35f7d0338f699fce660adb48e863f2b59.tar.xz
perf report: Document '--call-graph' for optional print_limit argument
The '--call-graph' command line option can receive undocumented optional print_limit argument. Besides, use strtoul() to parse the option since its type is u32. Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1323703017-6060-2-git-send-email-namhyung@gmail.com Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-report.c')
-rw-r--r--tools/perf/builtin-report.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ece7c5d3f504..b2654c9fb5c6 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -407,7 +407,7 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset)
goto setup;
if (tok2[0] != 'c') {
- callchain_param.print_limit = strtod(tok2, &endptr);
+ callchain_param.print_limit = strtoul(tok2, &endptr, 0);
tok2 = strtok(NULL, ",");
if (!tok2)
goto setup;
@@ -485,8 +485,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
"regex filter to identify parent, see: '--sort parent'"),
OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
"Only display entries with parent-match"),
- OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent, call_order",
- "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold and callchain order. "
+ OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
+ "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
"Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
"alias for inverted call graph"),