On 11/15/14 11:34, H.J. Lu wrote:
Hi,GCC uses xstrndup/xstrdup throughout the source tree and those memory may not be freed explicitly before exut. LeakSanitizer isn't very useful here. This patch suppresses LeakSanitizer in bootstrap. OK for trunk? This patch isn't sufficient. I got configure:3612: /export/build/gnu/gcc-asan/build-x86_64-linux/./gcc/xgcc -B/export/build/gnu/gcc-asan/build-x86_64-linux/./gcc/ -B/usr/gcc-5.0.0/x86_64-unknown-linux-gnu/bin/ -B/usr/gcc-5.0.0/x86_64-unknown-linux-gnu/lib/ -isystem /usr/gcc-5.0.0/x86_64-unknown-linux-gnu/include -isystem /usr/gcc-5.0.0/x86_64-unknown-linux-gnu/sys-include -c -g -O2 conftest.c >&5 ================================================================= ==14370==ERROR: AddressSanitizer: odr-violation (0x000002b38aa0): [1] size=12 'CSWTCH.2819' /export/gnu/import/git/sources/gcc/gcc/tree-vrp.c:4056:7 [2] size=12 'CSWTCH.2820' /export/gnu/import/git/sources/gcc/gcc/tree-vrp.c:4109:8 These globals were registered at these points: [1]: #0 0x68e9c6 in __asan_register_globals /export/gnu/import/git/sources/gcc/libsanitizer/asan/asan_globals.cc:217 #1 0x28dc89c in __libc_csu_init (/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/cc1+0x28dc89c) #2 0x309e821c34 in __libc_start_main (/lib64/libc.so.6+0x309e821c34) #3 0x683d3e (/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/cc1+0x683d3e) [2]: #0 0x68e9c6 in __asan_register_globals /export/gnu/import/git/sources/gcc/libsanitizer/asan/asan_globals.cc:217 #1 0x28dc89c in __libc_csu_init (/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/cc1+0x28dc89c) #2 0x309e821c34 in __libc_start_main (/lib64/libc.so.6+0x309e821c34) #3 0x683d3e (/export/build/gnu/gcc-asan/build-x86_64-linux/gcc/cc1+0x683d3e) ==14370==HINT: if you don't care about these warnings you may set ASAN_OPTIONS=detect_odr_violation=0 SUMMARY: AddressSanitizer: odr-violation: global 'CSWTCH.2819' at /export/gnu/import/git/sources/gcc/gcc/tree-vrp.c:4056:7 ==14370==ABORTING H.J. --- 2014-11-15 H.J. Lu <hongjiu...@intel.com> PR bootstrap/63888 * bootstrap-asan.mk (ASAN_OPTIONS): Export "detect_leaks=0".
Ok. jeff
