gcc version 7.1.0 (Debian 7.1.0-7) Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 7.1.0-7' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-7 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Program: int main() { __label__ l; void f() { goto l; } l: return 0; } Commands: $ gcc -fsanitize=address -o test test.c $ ./test ASAN:DEADLYSIGNAL ================================================================= ==4734==ERROR: AddressSanitizer: SEGV on unknown address 0x564cfe0a887a (pc 0x564cfe0a88d2 bp 0x7ffc4f3a68b0 sp 0x7ffc4f3a6800 T0) ==4734==The signal is caused by a WRITE memory access. #0 0x564cfe0a88d1 in main (/path/to/test+0x8d1) #1 0x7faed07412b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0) #2 0x564cfe0a87d9 in _start (/path/to/test+0x7d9) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV (/path/to/test+0x8d1) in main ==4734==ABORTING With GCC 6, this code works fine.
Mine, w/ -fno-sanitize-address-use-after-scope works fine.
Author: marxin Date: Wed Jul 26 08:52:37 2017 New Revision: 250561 URL: https://gcc.gnu.org/viewcvs?rev=250561&root=gcc&view=rev Log: Move non-local goto expansion after parm_birth_insn (PR sanitize/81186). 2017-07-26 Martin Liska <mliska@suse.cz> PR sanitize/81186 * function.c (expand_function_start): Make expansion of nonlocal_goto_save_area after parm_birth_insn. 2017-07-26 Martin Liska <mliska@suse.cz> PR sanitize/81186 * gcc.dg/asan/pr81186.c: New test. Added: trunk/gcc/testsuite/gcc.dg/asan/pr81186.c Modified: trunk/gcc/ChangeLog trunk/gcc/function.c trunk/gcc/testsuite/ChangeLog
Fixed on trunk so far.
Author: marxin Date: Thu Jul 27 07:32:53 2017 New Revision: 250605 URL: https://gcc.gnu.org/viewcvs?rev=250605&root=gcc&view=rev Log: Backport r250561 2017-07-27 Martin Liska <mliska@suse.cz> Backport from mainline 2017-07-26 Martin Liska <mliska@suse.cz> PR sanitize/81186 * function.c (expand_function_start): Make expansion of nonlocal_goto_save_area after parm_birth_insn. 2017-07-27 Martin Liska <mliska@suse.cz> Backport from mainline 2017-07-26 Martin Liska <mliska@suse.cz> PR sanitize/81186 * gcc.dg/asan/pr81186.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.dg/asan/pr81186.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/function.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
Fixed.