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authorJiri Olsa <jolsa@kernel.org>2020-05-07 11:50:24 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-05-28 15:03:25 +0200
commit53fb18941d81522a3e6eec1a5f21a70da1515e56 (patch)
tree018bb7a570975b74d735fe38208d27b960e48eb3 /tools/perf/builtin-script.c
parentperf callchain: Setup callchain properly in pipe mode (diff)
downloadlinux-53fb18941d81522a3e6eec1a5f21a70da1515e56.tar.xz
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perf script: Enable IP fields for callchains
In case the callchains were deleted in pipe mode, we need to ensure that the IP fields are enabled, otherwise the callchain is not displayed. Enabling IP and SYM, which should be enough for callchains. Committer testing: Before: Committer Testing: before: # ls # perf record -g -e 'syscalls:*' sleep 0.1 2>/dev/null | perf script | tail sleep 5677 [0] 5034.295882: syscalls:sys_exit_mmap: 0x7fcbcfa74000 sleep 5677 [0] 5034.295885: syscalls:sys_enter_close: fd: 0x00000003 sleep 5677 [0] 5034.295886: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.295911: syscalls:sys_enter_nanosleep: rqtp: 0x7fff775b33a0, rmtp: 0x00000000 sleep 5677 [0] 5034.396021: syscalls:sys_exit_nanosleep: 0x0 sleep 5677 [0] 5034.396027: syscalls:sys_enter_close: fd: 0x00000001 sleep 5677 [0] 5034.396028: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.396029: syscalls:sys_enter_close: fd: 0x00000002 sleep 5677 [0] 5034.396029: syscalls:sys_exit_close: 0x0 sleep 5677 [0] 5034.396032: syscalls:sys_enter_exit_group: error_code: 0x00000000 # # ls # After: # perf record --call-graph=dwarf -e 'syscalls:sys_enter*' sleep 0.1 2>/dev/null | perf script | tail -37 sleep 33010 [000] 5400.625269: syscalls:sys_enter_nanosleep: rqtp: 0x7fff2d0e7860, rmtp: 0x00000000 7f1406f131a7 __GI___nanosleep (inlined) 561c4f996966 [unknown] 561c4f99673f [unknown] 561c4f9937af [unknown] 7f1406e6c1a2 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725391: syscalls:sys_enter_close: fd: 0x00000001 7f1406f3c3cb __GI___close_nocancel (inlined) 7f1406ec7d6f _IO_new_file_close_it (inlined) 7f1406ebafa5 _IO_new_fclose (inlined) 561c4f996a40 [unknown] 561c4f993d79 [unknown] 7f1406e83e86 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725395: syscalls:sys_enter_close: fd: 0x00000002 7f1406f3c3cb __GI___close_nocancel (inlined) 7f1406ec7d6f _IO_new_file_close_it (inlined) 7f1406ebafa5 _IO_new_fclose (inlined) 561c4f996a40 [unknown] 561c4f993da2 [unknown] 7f1406e83e86 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] sleep 33010 [000] 5400.725399: syscalls:sys_enter_exit_group: error_code: 0x00000000 7f1406f13466 __GI__exit (inlined) 7f1406e83fa1 __run_exit_handlers 7f1406e8403f __GI_exit (inlined) 7f1406e6c1a9 __libc_start_main 561c4f99388d [unknown] # And, if we install coreutils-debuginfo, we'll have those [unknown] resolved, those are for the /usr/bin/sleep binary, use: # dnf debuginfo-install coreutils On Fedora and derivatives, then: # perf record --call-graph=dwarf -e 'syscalls:sys_enter*' sleep 0.1 2>/dev/null | perf script | tail -37 sleep 33046 [009] 5533.910074: syscalls:sys_enter_nanosleep: rqtp: 0x7ffea6fa7ab0, rmtp: 0x00000000 7f5f786e81a7 __GI___nanosleep (inlined) 564472454966 rpl_nanosleep 56447245473f xnanosleep 5644724517af main 7f5f786411a2 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010218: syscalls:sys_enter_close: fd: 0x00000001 7f5f787113cb __GI___close_nocancel (inlined) 7f5f7869cd6f _IO_new_file_close_it (inlined) 7f5f7868ffa5 _IO_new_fclose (inlined) 564472454a40 close_stream 564472451d79 close_stdout 7f5f78658e86 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010224: syscalls:sys_enter_close: fd: 0x00000002 7f5f787113cb __GI___close_nocancel (inlined) 7f5f7869cd6f _IO_new_file_close_it (inlined) 7f5f7868ffa5 _IO_new_fclose (inlined) 564472454a40 close_stream 564472451da2 close_stdout 7f5f78658e86 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start sleep 33046 [009] 5534.010229: syscalls:sys_enter_exit_group: error_code: 0x00000000 7f5f786e8466 __GI__exit (inlined) 7f5f78658fa1 __run_exit_handlers 7f5f7865903f __GI_exit (inlined) 7f5f786411a9 __libc_start_main 56447245188d _start # Reported-by: Paul Khuong <pvk@pvk.ca> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200507095024.2789147-6-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
-rw-r--r--tools/perf/builtin-script.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 5c4a580c048a..ecc8bd4c5e57 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2118,8 +2118,6 @@ static int process_attr(struct perf_tool *tool, union perf_event *event,
return 0;
}
- set_print_ip_opts(&evsel->core.attr);
-
if (evsel->core.attr.sample_type) {
err = perf_evsel__check_attr(evsel, scr->session);
if (err)
@@ -2132,6 +2130,13 @@ static int process_attr(struct perf_tool *tool, union perf_event *event,
*/
sample_type = perf_evlist__combined_sample_type(evlist);
callchain_param_setup(sample_type);
+
+ /* Enable fields for callchain entries, if it got enabled. */
+ if (callchain_param.record_mode != CALLCHAIN_NONE) {
+ output[output_type(evsel->core.attr.type)].fields |= PERF_OUTPUT_IP |
+ PERF_OUTPUT_SYM;
+ }
+ set_print_ip_opts(&evsel->core.attr);
return 0;
}