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| author | Mark Brown <broonie@kernel.org> | 2019-04-02 16:20:47 +0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-02 16:20:47 +0700 |
| commit | 6d5e2bf9d203e4d9e08ca2e9420c6ff22ad190af (patch) | |
| tree | c2c20648773d3326f942e34ef73b06566f7a19ec /tools/perf/Documentation/Build.txt | |
| parent | b820d52e7eed7b30b2dfef5f4213a2bc3cbea6f3 (diff) | |
| parent | 257f9053c0204ea47491aa236004fd1226f75fa8 (diff) | |
Merge branch 'acpi-utils' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into asoc-5.2
Diffstat (limited to 'tools/perf/Documentation/Build.txt')
| -rw-r--r-- | tools/perf/Documentation/Build.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/Documentation/Build.txt b/tools/perf/Documentation/Build.txt index f6fc6507ba55..3766886c4bca 100644 --- a/tools/perf/Documentation/Build.txt +++ b/tools/perf/Documentation/Build.txt @@ -47,3 +47,27 @@ Those objects are then used in final linking: NOTE this description is omitting other libraries involved, only focusing on build framework outcomes + +3) Build with ASan or UBSan +========================== + $ cd tools/perf + $ make DESTDIR=/usr + $ make DESTDIR=/usr install + +AddressSanitizer (or ASan) is a GCC feature that detects memory corruption bugs +such as buffer overflows and memory leaks. + + $ cd tools/perf + $ make DEBUG=1 EXTRA_CFLAGS='-fno-omit-frame-pointer -fsanitize=address' + $ ASAN_OPTIONS=log_path=asan.log ./perf record -a + +ASan outputs all detected issues into a log file named 'asan.log.<pid>'. + +UndefinedBehaviorSanitizer (or UBSan) is a fast undefined behavior detector +supported by GCC. UBSan detects undefined behaviors of programs at runtime. + + $ cd tools/perf + $ make DEBUG=1 EXTRA_CFLAGS='-fno-omit-frame-pointer -fsanitize=undefined' + $ UBSAN_OPTIONS=print_stacktrace=1 ./perf record -a + +If UBSan detects any problem at runtime, it outputs a “runtime error:” message. |