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/builtin-annotate.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'tools/perf/builtin-annotate.c') diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 5898662bc8fb..ff61795a4d13 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -535,6 +535,10 @@ int cmd_annotate(int argc, const char **argv) "Display raw encoding of assembly instructions (default)"), OPT_STRING('M', "disassembler-style", &annotate.opts.disassembler_style, "disassembler style", "Specify disassembler style (e.g. -M intel for intel syntax)"), + OPT_STRING(0, "prefix", &annotate.opts.prefix, "prefix", + "Add prefix to source file path names in programs (with --prefix-strip)"), + OPT_STRING(0, "prefix-strip", &annotate.opts.prefix_strip, "N", + "Strip first N entries of source file path name in programs (with --prefix)"), OPT_STRING(0, "objdump", &annotate.opts.objdump_path, "path", "objdump binary to use for disassembly and annotations"), OPT_BOOLEAN(0, "group", &symbol_conf.event_group, @@ -574,6 +578,9 @@ int cmd_annotate(int argc, const char **argv) annotate.sym_hist_filter = argv[0]; } + if (annotate_check_args(&annotate.opts) < 0) + return -EINVAL; + if (symbol_conf.show_nr_samples && annotate.use_gtk) { pr_err("--show-nr-samples is not available in --gtk mode at this time\n"); return ret; -- cgit v1.2.3