r269916 - in /trunk/gcc: ChangeLog dwarf2out.c

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Mar 25 13:50:46 2019
New Revision: 269916

URL: https://gcc.gnu.org/viewcvs?rev=269916&root=gcc&view=rev
Log:
2019-03-25  Thomas Otto  <thomas.otto@pdv-fs.de>

	* dwarf2out.c (comp_dir_string): cached_wd could be set to both a
	heap string and a gc string, but since this variable is unknown to
	ggc the gc string might get reused and corrupted. Fixed by always
	using a heap string.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c