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Subject[PATCH v1 4/4] perf annotate: Enable the '--tui-dump' mode
Date
It creates a new option '--tui-dump' in perf annotate command line.

With this option, for example, the perf annotate output:

$ perf annotate compute_flag --tui-dump

Percent IPC Cycle

Disassembly of section .text:

0000000000400640 <compute_flag>:
compute_flag():
volatile int count;
static unsigned int s_randseed;

__attribute__((noinline))
int compute_flag()
{
23.00 1.16 sub $0x8,%rsp
int i;

i = rand() % 2;
23.06 1.16 1 callq rand@plt

return i;
27.01 3.38 mov %eax,%edx
}
3.38 add $0x8,%rsp
{
int i;

i = rand() % 2;

return i;
3.38 shr $0x1f,%edx
3.38 add %edx,%eax
3.38 and $0x1,%eax
3.38 sub %edx,%eax
}
26.93 3.38 2 retq

Compared to TUI output,

$ perf annotate compute_flag

│ Disassembly of section .text:

│ 0000000000400640 <compute_flag>
│ compute_flag():
│ volatile int count;
│ static unsigned int s_randseed;

│ __attribute__((noinline))
│ int compute_flag()
│ {
23.00 │1.16 sub $0x8,%rsp
│ int i;

│ i = rand() % 2;
23.06 │1.16 1 → callq rand@plt

│ return i;
27.01 │3.38 mov %eax,%edx
│ }
│3.38 add $0x8,%rsp
│ {
│ int i;

│ i = rand() % 2;

│ return i;
│3.38 shr $0x1f,%edx
│3.38 add %edx,%eax
│3.38 and $0x1,%eax
│3.38 sub %edx,%eax
│ }
26.93 │3.38 2 ← retq

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
tools/perf/Documentation/perf-annotate.txt | 3 +++
tools/perf/builtin-annotate.c | 12 ++++++++++--
2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index 292809c3..d52ae47 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -83,6 +83,9 @@ OPTIONS

--gtk:: Use the GTK interface.

+--tui-dump: Use the TUI interface. The TUI output is dumped to stdio
+ interface.
+
-C::
--cpu=<cpu>:: Only report samples for the list of CPUs provided. Multiple CPUs can
be provided as a comma-separated list with no space: 0,1. Ranges of
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 8ba8e2c..5110160 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -41,6 +41,7 @@ struct perf_annotate {
struct perf_tool tool;
struct perf_session *session;
bool use_tui, use_stdio, use_gtk;
+ bool tui_dump;
bool full_paths;
bool print_line;
bool skip_missing;
@@ -334,7 +335,10 @@ static void hists__find_annotations(struct hists *hists,
/* skip missing symbols */
nd = rb_next(nd);
} else if (use_browser == 1) {
- key = hist_entry__tui_annotate(he, evsel, NULL, false);
+ key = hist_entry__tui_annotate(he, evsel, NULL,
+ ann->tui_dump);
+ if (ann->tui_dump)
+ return;

switch (key) {
case -1:
@@ -486,6 +490,7 @@ int cmd_annotate(int argc, const char **argv)
"dump raw trace in ASCII"),
OPT_BOOLEAN(0, "gtk", &annotate.use_gtk, "Use the GTK interface"),
OPT_BOOLEAN(0, "tui", &annotate.use_tui, "Use the TUI interface"),
+ OPT_BOOLEAN(0, "tui-dump", &annotate.tui_dump, "Dump TUI content"),
OPT_BOOLEAN(0, "stdio", &annotate.use_stdio, "Use the stdio interface"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
@@ -576,7 +581,10 @@ int cmd_annotate(int argc, const char **argv)
else if (annotate.use_gtk)
use_browser = 2;

- setup_browser(true, false);
+ if (annotate.tui_dump)
+ use_browser = 1;
+
+ setup_browser(true, annotate.tui_dump);

if (use_browser == 1 && annotate.has_br_stack) {
sort__mode = SORT_MODE__BRANCH;
--
2.7.4
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