[tip:perf/core] perf symbols: Warn on build id mismatch

["tip-bot for Naveen N. Rao" <tipbot@zytor.com>]

Commit-ID:  468f3d292fe60f0d744253b746e4b5d06bac0826
Gitweb:     http://git.kernel.org/tip/468f3d292fe60f0d744253b746e4b5d06bac0826
Author:     Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
AuthorDate: Sat, 25 Apr 2015 01:14:46 +0530
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 4 May 2015 12:43:51 -0300

perf symbols: Warn on build id mismatch

Add a debug message to indicate that the build id didn't match.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1429904686-16516-1-git-send-email-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index d99b442..9d526a5 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -683,6 +683,7 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
 		}
 
 		if (!dso__build_id_equal(dso, build_id)) {
+			pr_debug("%s: build id mismatch for %s.\n", __func__, name);
 			dso->load_errno = DSO_LOAD_ERRNO__MISMATCHING_BUILDID;
 			goto out_elf_end;
 		}