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authorFrederic Weisbecker <fweisbec@gmail.com>2009-08-08 02:16:24 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-09 12:54:42 +0200
commitb1a88349c37624755b28ac3b3152b48f52c1f487 (patch)
tree7dbcf52f06be731e6041c0371b9b185d92cf1eed /tools
parentb0efe213f84f7fd5ccfe07053e3d9fb827b7c188 (diff)
downloadop-kernel-dev-b1a88349c37624755b28ac3b3152b48f52c1f487.zip
op-kernel-dev-b1a88349c37624755b28ac3b3152b48f52c1f487.tar.gz
perf tools: callchain: Fix 'perf report' display to be callchain by default
If we recorded with -g option to record the callchain, right now we require a -g option to perf report as well - and people reported this as unnecessary complication: the user already specified -g once, no need to require it a second time. So if the recording includes call-chains, display the callchain by default from perf report. ( The user can override this default using "-g none" option from perf report. ) Reported-by: Ingo Molnar <mingo@elte.hu> 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> LKML-Reference: <1249690585-9145-3-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-report.c16
-rw-r--r--tools/perf/util/callchain.h1
2 files changed, 16 insertions, 1 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index a5e2f8d..c4a8e10 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -68,7 +68,7 @@ static int callchain;
static
struct callchain_param callchain_param = {
- .mode = CHAIN_GRAPH_ABS,
+ .mode = CHAIN_GRAPH_REL,
.min_percent = 0.5
};
@@ -1836,6 +1836,13 @@ static int __cmd_report(void)
" -g?\n");
exit(-1);
}
+ } else if (callchain_param.mode != CHAIN_NONE && !callchain) {
+ callchain = 1;
+ if (register_callchain_param(&callchain_param) < 0) {
+ fprintf(stderr, "Can't register callchain"
+ " params\n");
+ exit(-1);
+ }
}
if (load_kernel() < 0) {
@@ -1974,6 +1981,13 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
else if (!strncmp(tok, "fractal", strlen(arg)))
callchain_param.mode = CHAIN_GRAPH_REL;
+ else if (!strncmp(tok, "none", strlen(arg))) {
+ callchain_param.mode = CHAIN_NONE;
+ callchain = 0;
+
+ return 0;
+ }
+
else
return -1;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index b2d128e..a926ae4 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -7,6 +7,7 @@
#include "symbol.h"
enum chain_mode {
+ CHAIN_NONE,
CHAIN_FLAT,
CHAIN_GRAPH_ABS,
CHAIN_GRAPH_REL
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