Sorry for the duplicate send. GMail is misbehaving and caused the message to bounce from the gcc-help list. I thought I'd resend it. I did see this. In fact, I have --disable-libsanitizer in my configuration. So I haven't seen it in a while :/ I figured there was a core c++ change that wasn't compatible with that library and it would be fixed in time. I actually spent a little time debugging it and concluded that must have been outside my set of changes. I think this bug report helped me confirm that: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45253 It's possible that I'm reusing a field (say DECL_SIZE_UNIT) that is used with bitfield decls in templates, but I couldn't find any evidence supporting that. I'm not sure what a good resolution would be here. Andrew On Thu, Aug 22, 2013 at 6:11 PM, Andrew Sutton <andrew.n.sutton@xxxxxxxxx> wrote: > I did see this. In fact, I have --disable-libsanitizer in my configuration. > So I haven't seen it in a while :/ > > I figured there was a core c++ change that wasn't compatible with that > library and it would be fixed in time. I actually spent a little time > debugging it and concluded that must have been outside my set of changes. I > think this bug report helped me confirm that: > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45253 > > It's possible that I'm reusing a field (say DECL_SIZE_UNIT) that is used > with bitfield decls in templates, but I couldn't find any evidence > supporting that. > > I'm not sure what a good resolution would be here. > > Andrew > > > On Thu, Aug 22, 2013 at 5:50 PM, Gabriel Dos Reis > <gdr@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> Andrew -- are you seeing this too? >> >> -- Gaby >> >> On Thu, Aug 22, 2013 at 10:45 AM, Ed Smith-Rowland <3dw4rd@xxxxxxxxxxx> >> wrote: >> > I checked out a brand new copy of the c++-concepts branch and tried to >> > build. >> > The build breaks in stage1 while trying to build libasan: >> > >> > ----------------------------------------------------------------------------------------------------------- >> > make[4]: Leaving directory >> > >> > `/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libsanitizer/sanitizer_common' >> > Making all in asan >> > make[4]: Entering directory >> > `/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libsanitizer/asan' >> > /bin/bash ../libtool --tag=CXX --mode=compile >> > /home/ed/obj_concepts/./gcc/xgcc -shared-libgcc >> > -B/home/ed/obj_concepts/./gcc -nostdinc++ >> > -L/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libstdc++-v3/src >> > -L/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs >> > -B/home/ed/bin_concepts/x86_64-unknown-linux-gnu/bin/ >> > -B/home/ed/bin_concepts/x86_64-unknown-linux-gnu/lib/ -isystem >> > /home/ed/bin_concepts/x86_64-unknown-linux-gnu/include -isystem >> > /home/ed/bin_concepts/x86_64-unknown-linux-gnu/sys-include -D_GNU_SOURCE >> > -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS >> > -D__STDC_LIMIT_MACROS -DASAN_HAS_EXCEPTIONS=1 >> > -DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0 -DASAN_NEEDS_SEGV=1 -I. >> > -I../../../../gcc_concepts/libsanitizer/asan -I >> > ../../../../gcc_concepts/libsanitizer/include -I >> > ../../../../gcc_concepts/libsanitizer -Wall -W -Wno-unused-parameter >> > -Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-builtin >> > -fno-exceptions >> > -fomit-frame-pointer -funwind-tables -fvisibility=hidden >> > -Wno-variadic-macros -I../../libstdc++-v3/include >> > -I../../libstdc++-v3/include/x86_64-unknown-linux-gnu >> > -I../../../../gcc_concepts/libsanitizer/../libstdc++-v3/libsupc++ -g -O2 >> > -D_GNU_SOURCE -MT asan_allocator2.lo -MD -MP -MF >> > .deps/asan_allocator2.Tpo >> > -c -o asan_allocator2.lo >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc >> > libtool: compile: /home/ed/obj_concepts/./gcc/xgcc -shared-libgcc >> > -B/home/ed/obj_concepts/./gcc -nostdinc++ >> > -L/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libstdc++-v3/src >> > -L/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs >> > -B/home/ed/bin_concepts/x86_64-unknown-linux-gnu/bin/ >> > -B/home/ed/bin_concepts/x86_64-unknown-linux-gnu/lib/ -isystem >> > /home/ed/bin_concepts/x86_64-unknown-linux-gnu/include -isystem >> > /home/ed/bin_concepts/x86_64-unknown-linux-gnu/sys-include -D_GNU_SOURCE >> > -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS >> > -D__STDC_LIMIT_MACROS -DASAN_HAS_EXCEPTIONS=1 >> > -DASAN_FLEXIBLE_MAPPING_AND_OFFSET=0 -DASAN_NEEDS_SEGV=1 -I. >> > -I../../../../gcc_concepts/libsanitizer/asan -I >> > ../../../../gcc_concepts/libsanitizer/include -I >> > ../../../../gcc_concepts/libsanitizer -Wall -W -Wno-unused-parameter >> > -Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-builtin >> > -fno-exceptions >> > -fomit-frame-pointer -funwind-tables -fvisibility=hidden >> > -Wno-variadic-macros -I../../libstdc++-v3/include >> > -I../../libstdc++-v3/include/x86_64-unknown-linux-gnu >> > -I../../../../gcc_concepts/libsanitizer/../libstdc++-v3/libsupc++ -g -O2 >> > -D_GNU_SOURCE -MT asan_allocator2.lo -MD -MP -MF >> > .deps/asan_allocator2.Tpo >> > -c ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc -fPIC >> > -DPIC >> > -o .libs/asan_allocator2.o >> > In file included from >> > ../../../../gcc_concepts/libsanitizer/asan/asan_flags.h:16:0, >> > from ../../../../gcc_concepts/libsanitizer/asan/asan_internal.h:15, >> > from ../../../../gcc_concepts/libsanitizer/asan/asan_allocator.h:16, >> > from ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:16: >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc: In member >> > function ‘void __asan::QuarantineCallback::Recycle(__asan::AsanChunk*)’: >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:262:17: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::alloc_tid’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK_NE(m->alloc_tid, kInvalidTid); >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:174:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v1 = (u64)(c1); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:262:5: >> > note: >> > in expansion of macro ‘CHECK_NE’ >> > CHECK_NE(m->alloc_tid, kInvalidTid); >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:263:17: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::free_tid’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK_NE(m->free_tid, kInvalidTid); >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:174:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v1 = (u64)(c1); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:263:5: >> > note: >> > in expansion of macro ‘CHECK_NE’ >> > CHECK_NE(m->free_tid, kInvalidTid); >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc: In >> > function >> > ‘void* __asan::Allocate(__sanitizer::uptr, __sanitizer::uptr, >> > __sanitizer::StackTrace*, __asan::AllocType)’: >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:364:26: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::alloc_tid’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK_EQ(alloc_tid, m->alloc_tid); // Does alloc_tid fit into the >> > bitfield? >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:175:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v2 = (u64)(c2); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:364:3: >> > note: >> > in expansion of macro ‘CHECK_EQ’ >> > CHECK_EQ(alloc_tid, m->alloc_tid); // Does alloc_tid fit into the >> > bitfield? >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc: In >> > function >> > ‘void __asan::Deallocate(void*, __sanitizer::StackTrace*, >> > __asan::AllocType)’: >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:436:15: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::alloc_tid’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK_GE(m->alloc_tid, 0); >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:174:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v1 = (u64)(c1); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:436:3: >> > note: >> > in expansion of macro ‘CHECK_GE’ >> > CHECK_GE(m->alloc_tid, 0); >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:438:17: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::free_tid’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK_EQ(m->free_tid, kInvalidTid); >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:174:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v1 = (u64)(c1); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:438:5: >> > note: >> > in expansion of macro ‘CHECK_EQ’ >> > CHECK_EQ(m->free_tid, kInvalidTid); >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc: In >> > function >> > ‘__asan::AsanChunk* __asan::GetAsanChunkByAddr(__sanitizer::uptr)’: >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:500:14: >> > error: >> > cannot bind bitfield >> > >> > ‘m->__asan::AsanChunk::<anonymous>.__asan::ChunkBase::<anonymous>.__asan::ChunkHeader::from_memalign’ >> > to ‘__sanitizer::u32& {aka unsigned int&}’ >> > CHECK(m->from_memalign); >> > ^ >> > >> > ../../../../gcc_concepts/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:174:33: >> > note: in definition of macro ‘CHECK_IMPL’ >> > __sanitizer::u64 v1 = (u64)(c1); \ >> > ^ >> > ../../../../gcc_concepts/libsanitizer/asan/asan_allocator2.cc:500:5: >> > note: >> > in expansion of macro ‘CHECK’ >> > CHECK(m->from_memalign); >> > ^ >> > make[4]: *** [asan_allocator2.lo] Error 1 >> > make[4]: Leaving directory >> > `/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libsanitizer/asan' >> > make[3]: *** [all-recursive] Error 1 >> > make[3]: Leaving directory >> > `/home/ed/obj_concepts/x86_64-unknown-linux-gnu/libsanitizer' >> > make[2]: *** [all-stage1-target-libsanitizer] Error 2 >> > make[2]: Leaving directory `/home/ed/obj_concepts' >> > make[1]: *** [stage1-bubble] Error 2 >> > make[1]: Leaving directory `/home/ed/obj_concepts' >> > make: *** [bootstrap] Error 2 >> > >> > ----------------------------------------------------------------------------------------------------------- >> > >> > Any ideas? >> > >> > I'm not having trouble building building trunk at all. >> > >> > Could this be *Bug 57644* >> > <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57644> -[C++1y] Cannot bind >> > bitfield to lvalue reference? The default compiler for concepts branch >> > is >> > c++1y. >> > >> > I'm on x86_64 linux. The system compiler is stock (for ubuntu 13.4 >> > Raring): >> > >> > ed@bad-horse:~/obj_concepts$ g++ -v >> > Using built-in specs. >> > COLLECT_GCC=g++ >> > COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper >> > Target: x86_64-linux-gnu >> > Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro >> > 4.7.3-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs >> > --enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr >> > --program-suffix=-4.7 --enable-shared --enable-linker-build-id >> > --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix >> > --with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib >> > --enable-nls >> > --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug >> > --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin >> > --with-system-zlib --enable-objc-gc --with-cloog >> > --enable-cloog-backend=ppl >> > --disable-cloog-version-check --disable-ppl-version-check >> > --enable-multiarch >> > --disable-werror --with-arch-32=i686 --with-abi=m64 >> > --with-multilib-list=m32,m64,mx32 --with-tune=generic >> > --enable-checking=release --build=x86_64-linux-gnu >> > --host=x86_64-linux-gnu >> > --target=x86_64-linux-gnu >> > Thread model: posix >> > gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1) >> > > > > > > -- > Andrew Sutton > andrew.n.sutton@xxxxxxxxx -- Andrew Sutton andrew.n.sutton@xxxxxxxxx
