perf symbols: Pass the offset to perf_header__read_build_ids()

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1258396365-29217-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 3 insertions, 4 deletions

diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index aacb814a4eff..14cb8465eb08 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -70,11 +70,10 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
         }
 }
 
-int perf_header__read_build_ids(int input, off_t size)
+int perf_header__read_build_ids(int input, off_t offset, off_t size)
 {
         struct build_id_event bev;
         char filename[PATH_MAX];
-        off_t offset = lseek(input, 0, SEEK_CUR);
         off_t limit = offset + size;
         int err = -1;
 
diff --git a/tools/perf/util/data_map.h b/tools/perf/util/data_map.h
index 20b4037a8236..ae036ecd7625 100644
--- a/tools/perf/util/data_map.h
+++ b/tools/perf/util/data_map.h
@@ -27,6 +27,6 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
                             int full_paths,
                             int *cwdlen,
                             char **cwd);
-int perf_header__read_build_ids(int input, off_t file_size);
+int perf_header__read_build_ids(int input, off_t offset, off_t file_size);
 
 #endif
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index ebed4f44ed36..ca0d657eefad 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -359,7 +359,7 @@ static void perf_header__adds_read(struct perf_header *self, int fd)
 
                 buildid_sec = &feat_sec[idx++];
                 lseek(fd, buildid_sec->offset, SEEK_SET);
-                if (perf_header__read_build_ids(fd, buildid_sec->size))
+                if (perf_header__read_build_ids(fd, buildid_sec->offset, buildid_sec->size))
                         pr_debug("failed to read buildids, continuing...\n");
         }