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author | Masami Hiramatsu <mhiramat@kernel.org> | 2016-08-26 01:24:42 +0900 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-09-01 09:44:14 -0300 |
commit | 428aff82e92a29da0e4276623180f9a98f2d5b16 (patch) | |
tree | 90b34a229cdba27e44389408b75d4b33ae9fd2ea /tools/perf/util/Build | |
parent | 1c20b1d15473a91e2fccecbcd2809d80ff4b4924 (diff) | |
download | linux-stable-428aff82e92a29da0e4276623180f9a98f2d5b16.tar.gz linux-stable-428aff82e92a29da0e4276623180f9a98f2d5b16.tar.bz2 linux-stable-428aff82e92a29da0e4276623180f9a98f2d5b16.zip |
perf probe: Ignore vmlinux buildid if offline kernel is given
Ignore the buildid of running kernel when both of --definition and
--vmlinux is given because that kernel should be off-line.
This also skips post-processing of kprobe event for relocating symbol
and checking blacklist, because it can not be done on off-line kernel.
E.g. without this fix perf shows an error as below
----
$ perf probe --vmlinux=./vmlinux-arm --definition do_sys_open
./vmlinux-arm with build id 7a1f76dd56e9c4da707cd3d6333f50748141434b not found, continuing without symbols
Failed to find symbol do_sys_open in kernel
Error: Failed to add events.
----
with this fix, we can get the definition
----
$ perf probe --vmlinux=./vmlinux-arm --definition do_sys_open
p:probe/do_sys_open do_sys_open+0
----
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/147214228193.23638.12581984840822162131.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/Build')
0 files changed, 0 insertions, 0 deletions