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authorNamhyung Kim <namhyung.kim@lge.com>2012-08-06 08:41:21 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-08-09 23:26:38 +0400
commit393be2e3747ea3ef0d2e724115a5f42b2fa50dbd (patch)
tree6cdc2568e3a6a485f8bbf3d0f94f83873daad3a7 /tools/perf/builtin-inject.c
parente5a1845fc0aeca85c98115980c3531129f87e18d (diff)
downloadlinux-393be2e3747ea3ef0d2e724115a5f42b2fa50dbd.tar.xz
perf symbols: Support minimal build without libelf
Now we have isolated all ELF-specific stuff, it's possible to build without libelf. The output binary can do most of jobs but lacks (user level) symbol information - kernel symbols are still accessable thanks to the kallsyms. To build perf without libelf (elfutils), give NO_LIBELF=1 to make. For now, only 'perf probe' command is removed since it depends on libelf/libdw heavily. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1344228082-15569-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-inject.c')
-rw-r--r--tools/perf/builtin-inject.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 3beab489afc5..64d8ba2fb7bc 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -191,10 +191,13 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
* If this fails, too bad, let the other side
* account this as unresolved.
*/
- } else
+ } else {
+#ifndef NO_LIBELF_SUPPORT
pr_warning("no symbols found in %s, maybe "
"install a debug package?\n",
al.map->dso->long_name);
+#endif
+ }
}
}