From 3b0b16bf8cb92ae67968c1abb7b335032b899b33 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 7 Jan 2020 13:04:44 -0800 Subject: perf tools: Support --prefix/--prefix-strip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The objdump utility has useful --prefix / --prefix-strip options to allow changing source code file names hardcoded into executables' debug info. Add options to 'perf report', 'perf top' and 'perf annotate', which are then passed to objdump. $ mkdir foo $ echo 'main() { for (;;); }' > foo/foo.c $ gcc -g foo/foo.c foo/foo.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int] 1 | main() { for (;;); } | ^~~~ $ perf record ./a.out ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.230 MB perf.data (5721 samples) ] $ mv foo bar $ perf annotate $ perf annotate --prefix=/home/ak/lsrc/git/bar --prefix-strip=5 Signed-off-by: Andi Kleen Tested-by: Jiri Olsa LPU-Reference: 20200107210444.214071-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-report.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'tools/perf/Documentation/perf-report.txt') diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 8dbe2119686a..db61f16ffa56 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -367,6 +367,12 @@ OPTIONS --objdump=:: Path to objdump binary. +--prefix=PREFIX:: +--prefix-strip=N:: + Remove first N entries from source file path names in executables + and add PREFIX. This allows to display source code compiled on systems + with different file system layout. + --group:: Show event group information together. It forces group output also if there are no groups defined in data file. -- cgit v1.2.3-59-g8ed1b