https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83106
Bug ID: 83106
Summary: [8 regression] libgomp/target.c:2671:2: error:
‘strncat’ specified bound 5 equals source length
[-Werror=stringop-overflow=]
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: dimhen at gmail dot com
Target Milestone: ---
r254985 PASS
r255052 FAIL
libtool: compile: /home/dimhen/build/gcc_current/./gcc/xgcc
-B/home/dimhen/build/gcc_current/./gcc/
-B/usr/local/gcc_current/x86_64-pc-linux-gnu/bin/
-B/usr/local/gcc_current/x86_64-pc-linux-gnu/lib/ -isystem
/usr/local/gcc_current/x86_64-pc-linux-gnu/include -isystem
/usr/local/gcc_current/x86_64-pc-linux-gnu/sys-include -DHAVE_CONFIG_H -I.
-I/home/dimhen/src/gcc_current/libgomp
-I/home/dimhen/src/gcc_current/libgomp/config/linux/x86
-I/home/dimhen/src/gcc_current/libgomp/config/linux
-I/home/dimhen/src/gcc_current/libgomp/config/posix
-I/home/dimhen/src/gcc_current/libgomp
-I/home/dimhen/src/gcc_current/libgomp/../include -Wall -Werror -pthread
-ftls-model=initial-exec -fcf-protection -mcet -g -O2 -MT target.lo -MD -MP -MF
.deps/target.Tpo -c /home/dimhen/src/gcc_current/libgomp/target.c -fPIC -DPIC
-o .libs/target.o
/home/dimhen/src/gcc_current/libgomp/target.c: In function ‘gomp_target_init’:
/home/dimhen/src/gcc_current/libgomp/target.c:2671:2: error: ‘strncat’
specified bound 5 equals source length [-Werror=stringop-overflow=]
strncat (plugin_name, cur, next ? next - cur : strlen (cur));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [Makefile:659: target.lo] Error 1
$ ~/src/gcc_current/configure --prefix=/usr/local/gcc_current
--enable-checking=yes,df,fold,rtl,extra --enable-languages=c,c++,lto
--disable-multilib --enable-shared --enable-threads=posix --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id --with-linker-hash-style=gnu --enable-plugin
--enable-initfini-array --with-isl --enable-libmpx
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-gnu-indirect-function --with-tune=native
$ make
