[Bug sanitizer/59148] FAIL: c-c++-common/asan/strncpy-overflow-1.c -O0 execution test on darwin13

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59148

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Well, -D_FORTIFY_SOURCE=2 does things that asan doesn't and can't do, so
disabling fortification if you build with -fsanitize=address sounds like a very
bad idea to me.
IMHO libasan should intercept also the __*_chk calls, test + branch to
__chk_fail if they should fail, otherwise fall through to the intercepted
original function.
For *printf* family __printf_chk etc. also fail on %n if it isn't in read-only
string literal.