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author | 2020-01-07 13:04:44 -0800 | |
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committer | 2020-01-14 12:02:19 -0300 | |
commit | 3b0b16bf8cb92ae67968c1abb7b335032b899b33 (patch) | |
tree | 6c724fc2c5ffce436e1c86ba9bc1a801c66d9e9d /drivers/usb/cdns3/cdns3-imx.c | |
parent | perf report: Clarify in help that --children is default (diff) | |
download | wireguard-linux-3b0b16bf8cb92ae67968c1abb7b335032b899b33.tar.xz wireguard-linux-3b0b16bf8cb92ae67968c1abb7b335032b899b33.zip |
perf tools: Support --prefix/--prefix-strip
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
<does not show source code>
$ perf annotate --prefix=/home/ak/lsrc/git/bar --prefix-strip=5
<does show source code>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20200107210444.214071-1-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-imx.c')
0 files changed, 0 insertions, 0 deletions