GOLD/DWP: exit without segfault if the binary is not built with debug fission.
dwp segfaults when trying to get .dwp file from a binary built without
debug fission. This patch fixes that.
upstream thread is
https://sourceware.org/ml/binutils/2016-05/msg00204.html
BUG=None
TEST=dwp still works with files built with debug fission and dwp does not
segfault on files that are not built with debug fission.
diff --git a/binutils-2.25/gold/dwp.cc b/binutils-2.25/gold/dwp.cc
index 121f37b..9eef68a 100644
--- a/binutils-2.25/gold/dwp.cc
+++ b/binutils-2.25/gold/dwp.cc
@@ -2427,6 +2427,10 @@
if (exe_filename == NULL && files.empty())
gold_fatal(_("no input files and no executable specified"));
+ // If there are no DWO files, there is nothing to do.
+ if (files.empty())
+ return EXIT_SUCCESS;
+
if (verify_only)
{
// Get list of DWO files in the DWP file and compare with
