Improve boostrap-ubsan config (PR bootstrap/64914).

2018-05-10  Martin Liska  <mliska@suse.cz>

	PR bootstrap/64914
	* md5.c: Use strict alignment with UBSAN_BOOTSTRAP.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@260112 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index a116d3731001820598e66af2e55494c2b2580808..b249226155c99a9d9031029b1548cc06114ba601 100644 (file)
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,8 @@
+2018-05-10  Martin Liska  <mliska@suse.cz>
+
+       PR bootstrap/64914
+       * md5.c: Use strict alignment with UBSAN_BOOTSTRAP.
+
 2018-04-30  Daniel van Gerpen  <daniel@vangerpen.de>
 
        * argv.c (expandargv): Fix memory leak for copied argv.

diff --git a/libiberty/md5.c b/libiberty/md5.c
index f106d2262cadb55401a3fceeb32f96d77b748e98..4dd5186a69a1c1dbfcbe350518773f9f6e7a8ed7 100644 (file)
--- a/libiberty/md5.c
+++ b/libiberty/md5.c
@@ -231,7 +231,7 @@ md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx)
   /* Process available complete blocks.  */
   if (len > 64)
     {
-#if !_STRING_ARCH_unaligned
+#if !_STRING_ARCH_unaligned || defined UBSAN_BOOTSTRAP
 /* To check alignment gcc has an appropriate operator.  Other
    compilers don't.  */
 # if __GNUC__ >= 2