#35070: _GLIBCXX_DEBUG and empty ostringstream -------------------------------------+-------------------------------------- Reporter: akim.demaille@… | Owner: macports-tickets@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.1.1 Keywords: | Port: gcc47 -------------------------------------+-------------------------------------- Hi, The following program fails on Mac OS X with both 4.7 and 4.8. {{{ $ uname -a Darwin padam.local 11.4.0 Darwin Kernel Version 11.4.0: Mon Apr 9 19:32:15 PDT 2012; root:xnu-1699.26.8~1/RELEASE_X86_64 x86_64 $ g++-mp-4.7 --version g++-mp-4.7 (MacPorts gcc47 4.7.1_0) 4.7.1 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ g++-mp-4.8 --version g++-mp-4.8 (MacPorts gcc48 4.8-20120701_0) 4.8.0 20120701 (experimental) Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. $ cat simpleaut.cc # define _GLIBCXX_DEBUG 1 # include <sstream> int main() { std::ostringstream s; s.str(); } $ g++-mp-4.7 tests/unit/simpleaut.cc Using built-in specs. COLLECT_GCC=g++-mp-4.7 COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin11/4.7.1 /lto-wrapper Target: x86_64-apple-darwin11 Configured with: ../gcc-4.7.1/configure --prefix=/opt/local --build=x86_64 -apple-darwin11 --enable-languages=c,c++,objc,obj-c++,lto,fortran,java --libdir=/opt/local/lib/gcc47 --includedir=/opt/local/include/gcc47 --infodir=/opt/local/share/info --mandir=/opt/local/share/man --datarootdir=/opt/local/share/gcc-4.7 --with-libiconv-prefix=/opt/local --with-local-prefix=/opt/local --with-system-zlib --disable-nls --program- suffix=-mp-4.7 --with-gxx-include-dir=/opt/local/include/gcc47/c++/ --with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local --with- ppl=/opt/local --with-cloog=/opt/local --enable-cloog-backend=isl --enable-stage1-checking --disable-multilib --enable-lto --with- as=/opt/local/bin/as --with-ld=/opt/local/bin/ld --with- ar=/opt/local/bin/ar --with-bugurl=https://trac.macports.org/newticket --with-pkgversion='MacPorts gcc47 4.7.1_0' Thread model: posix gcc version 4.7.1 (MacPorts gcc47 4.7.1_0) COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.7.4' '-v' '-shared-libgcc' '-mtune=core2' /opt/local/libexec/gcc/x86_64-apple-darwin11/4.7.1/cc1plus -quiet -v -D__DYNAMIC__ foo.cc -fPIC -quiet -dumpbase foo.cc -mmacosx-version- min=10.7.4 -mtune=core2 -auxbase foo -version -o /var/folders/vc/vkjp1hhs5dgg8blcpzm6t59c0000gp/T//ccDjHKgh.s GNU C++ (MacPorts gcc47 4.7.1_0) version 4.7.1 (x86_64-apple-darwin11) compiled by GNU C version 4.7.1, GMP version 5.0.4, MPFR version 3.1.0-p3, MPC version 0.9 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/opt/local/lib/gcc47/gcc/x86_64-apple- darwin11/4.7.1/../../../../../x86_64-apple-darwin11/include" ignoring duplicate directory "/opt/local/include" as it is a non-system directory that duplicates a system directory #include "..." search starts here: #include <...> search starts here: /opt/local/include/gcc47/c++/ /opt/local/include/gcc47/c++//x86_64-apple-darwin11 /opt/local/include/gcc47/c++//backward /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/include /opt/local/include /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/include-fixed /usr/include /System/Library/Frameworks /Library/Frameworks End of search list. GNU C++ (MacPorts gcc47 4.7.1_0) version 4.7.1 (x86_64-apple-darwin11) compiled by GNU C version 4.7.1, GMP version 5.0.4, MPFR version 3.1.0-p3, MPC version 0.9 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 09950ee4f031f09244f876c6af55ed8f COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.7.4' '-v' '-shared-libgcc' '-mtune=core2' /opt/local/bin/as -v -arch x86_64 -force_cpusubtype_ALL -o /var/folders/vc/vkjp1hhs5dgg8blcpzm6t59c0000gp/T//cc5KozFj.o /var/folders/vc/vkjp1hhs5dgg8blcpzm6t59c0000gp/T//ccDjHKgh.s Apple Inc version cctools-822, GNU assembler version 1.38 COMPILER_PATH=/opt/local/libexec/gcc/x86_64-apple- darwin11/4.7.1/:/opt/local/libexec/gcc/x86_64-apple- darwin11/4.7.1/:/opt/local/libexec/gcc/x86_64-apple- darwin11/:/opt/local/lib/gcc47/gcc/x86_64-apple- darwin11/4.7.1/:/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/ LIBRARY_PATH=/opt/local/lib/:/opt/local/lib/gcc47/gcc/x86_64-apple- darwin11/4.7.1/:/opt/local/lib/gcc47/gcc/x86_64-apple- darwin11/4.7.1/../../../:/usr/lib/ COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.7.4' '-v' '-shared-libgcc' '-mtune=core2' /opt/local/libexec/gcc/x86_64-apple-darwin11/4.7.1/collect2 -dynamic -arch x86_64 -macosx_version_min 10.7.4 -weak_reference_mismatches non- weak -o a.out -lcrt1.10.6.o -L/opt/local/lib -L/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1 -L/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../.. /var/folders/vc/vkjp1hhs5dgg8blcpzm6t59c0000gp/T//cc5KozFj.o -lstdc++ -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem -v collect2 version 4.7.1 /opt/local/bin/ld -dynamic -arch x86_64 -macosx_version_min 10.7.4 -weak_reference_mismatches non-weak -o a.out -lcrt1.10.6.o -L/opt/local/lib -L/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1 -L/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../.. /var/folders/vc/vkjp1hhs5dgg8blcpzm6t59c0000gp/T//cc5KozFj.o -lstdc++ -no_compact_unwind -lSystem -lgcc_ext.10.5 -lgcc -lSystem -v @(#)PROGRAM:ld PROJECT:ld64-128.2 Library search paths: /opt/local/lib /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1 /opt/local/lib/gcc47 /usr/lib /usr/local/lib Framework search paths: /Library/Frameworks/ /System/Library/Frameworks/ $ ./a.out a.out(28056) malloc: *** error for object 0x10a5f2340: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug zsh: abort ./a.out (gdb) bt #0 0x00007fff89bf582a in __kill () #1 0x00007fff89833a9c in abort () #2 0x00007fff8989284c in free () #3 0x0000000100000b86 in __gnu_cxx::new_allocator<char>::deallocate (this=0x7fff5fbff847, __p=0x1000d0340 "") at ext/new_allocator.h:102 #4 0x0000000100000b58 in std::string::_Rep::_M_destroy (this=0x1000d0340, __a=@0x7fff5fbff89f) at bits/basic_string.tcc:451 #5 0x0000000100000ae6 in std::string::_Rep::_M_dispose (this=0x1000d0340, __a=@0x7fff5fbff89f) at bits/basic_string.h:251 #6 0x00000001000009fd in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string (this=0x7fff5fbffa20) at bits/basic_string.h:541 #7 0x0000000100000968 in main () at tests/unit/simpleaut.cc:7 }}} Please, see the (wrong) bug report I made to the GCC team, where they emit ideas about the possible problem: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53838 -- Ticket URL: <https://trac.macports.org/ticket/35070> MacPorts <http://www.macports.org/> Ports system for Mac OS