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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2022-05-17 16:10:09 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-05-23 10:19:04 -0300 |
| commit | 5b208144602f7557f569a26b907da2283cc9b4ac (patch) | |
| tree | 8761b91818f12bb2d5959c34adb866b4bac87308 /tools | |
| parent | perf tools: Add guest_code support (diff) | |
| download | linux-dev-5b208144602f7557f569a26b907da2283cc9b4ac.tar.xz linux-dev-5b208144602f7557f569a26b907da2283cc9b4ac.zip | |
perf script: Add guest_code support
Add an option to indicate that guest code can be found in the hypervisor
process.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220517131011.6117-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 4 | ||||
| -rw-r--r-- | tools/perf/builtin-script.c | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 2012a8e6c90b..1a557ff8f210 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -499,6 +499,10 @@ include::itrace.txt[] The known limitations include exception handing such as setjmp/longjmp will have calls/returns not match. +--guest-code:: + Indicate that guest code can be found in the hypervisor process, + which is a common case for KVM test programs. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-script-perl[1], diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index ae6d216df438..c689054002cc 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -3912,6 +3912,8 @@ int cmd_script(int argc, const char **argv) "file", "file saving guest os /proc/kallsyms"), OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, "file", "file saving guest os /proc/modules"), + OPT_BOOLEAN(0, "guest-code", &symbol_conf.guest_code, + "Guest code can be found in hypervisor process"), OPT_BOOLEAN('\0', "stitch-lbr", &script.stitch_lbr, "Enable LBR callgraph stitching approach"), OPTS_EVSWITCH(&script.evswitch), @@ -3937,7 +3939,8 @@ int cmd_script(int argc, const char **argv) if (symbol_conf.guestmount || symbol_conf.default_guest_vmlinux_name || symbol_conf.default_guest_kallsyms || - symbol_conf.default_guest_modules) { + symbol_conf.default_guest_modules || + symbol_conf.guest_code) { /* * Enable guest sample processing. */ |