r255836 - in /trunk/gcc: ChangeLog builtins.c t...

[msebor@gcc.gnu.org]

Author: msebor
Date: Tue Dec 19 19:14:57 2017
New Revision: 255836

URL: https://gcc.gnu.org/viewcvs?rev=255836&root=gcc&view=rev
Log:
PR middle-end/77608 - missing protection on trivially detectable runtime buffer overflow

gcc/ChangeLog:

	PR middle-end/77608
	* builtins.c (compute_objsize): Handle non-constant offsets.

gcc/testsuite/ChangeLog:

	PR middle-end/77608
	* gcc.dg/Wstringop-overflow.c: New test.
	* gcc/testsuite/c-c++-common/Warray-bounds-3.c: Adjust.


Added:
    trunk/gcc/testsuite/gcc.dg/Wstringop-overflow.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/c-c++-common/Warray-bounds-3.c