perf symbols: Only un-prelink non-zero symbols
authorCody P Schafer <cody@linux.vnet.ibm.com>
Fri, 10 Aug 2012 22:22:49 +0000 (15:22 -0700)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 13 Aug 2012 15:54:06 +0000 (12:54 -0300)
Prelink only adjusts the addresses of non-zero symbols. Do the same when we
reverse the adjustments.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Hellsley <matthltc@us.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1344637382-22789-4-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/symbol-elf.c

index 9ca89f8f6c97d415ab7b03aac27878f037fd4944..e0376094fa8b2458a2324063130c9564ac9cbd64 100644 (file)
@@ -717,7 +717,7 @@ int dso__load_sym(struct dso *dso, struct map *map, const char *name, int fd,
                        goto new_symbol;
                }
 
-               if (curr_dso->adjust_symbols) {
+               if (curr_dso->adjust_symbols && sym.st_value) {
                        pr_debug4("%s: adjusting symbol: st_value: %#" PRIx64 " "
                                  "sh_addr: %#" PRIx64 " sh_offset: %#" PRIx64 "\n", __func__,
                                  (u64)sym.st_value, (u64)shdr.sh_addr,