[GOLD] PowerPC64 TOC indirect to TOC relative segfault
* powerpc.cc (Powerpc_relobj::make_toc_relative): Don't crash
when no .toc section exists.
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 0aeff82..30d3244 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,6 +1,10 @@
2017-02-22 Alan Modra <amodra@gmail.com>
Apply from master
+ 2017-02-03 Alan Modra <amodra@gmail.com>
+ * powerpc.cc (Powerpc_relobj::make_toc_relative): Don't crash
+ when no .toc section exists.
+
2017-01-13 H.J. Lu <hongjiu.lu@intel.com>
PR gold/21040
* powerpc.cc (Powerpc_relobj<size, big_endian>::make_toc_relative):
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index fec18cd..81f9bff 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -1986,6 +1986,12 @@
if (size != 64)
return false;
+ // With -mcmodel=medium code it is quite possible to have
+ // toc-relative relocs referring to objects outside the TOC.
+ // Don't try to look at a non-existent TOC.
+ if (this->toc_shndx() == 0)
+ return false;
+
// Convert VALUE back to an address by adding got_base (see below),
// then to an offset in the TOC by subtracting the TOC output
// section address and the TOC output offset. Since this TOC output
