When using MinGW 4.7.0 to compile Clang on Windows, the resulting Clang binary does not correctly compile simple C++ code. This is with ToT LLVM/Clang.
Clang build:
$ cmake -DCMAKE_BUILD_TYPE=Debug -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_EXTERNAL_CLANG_SOURCE_DIR= -G Ninja
$ ninja
After building Clang, I tried to compile the following program:
#include
#include
int main(int argc, char** argv) {
std::string Name(“me”);
std::cout << Name << “\n”;
return 0;
}
with
$ bin\clang++.exe test1.cpp -O0 -o test1.exe -v
The resulting executable immediately seg faults in the CRT start-up routines:
Program received signal SIGSEGV, Segmentation fault.
0x6fc65abb in libstdc+±6!_ZNKSs4sizeEv () from c:\MinGW\bin\libstdc+±6.dll
(gdb) bt
#0 0x6fc65abb in libstdc+±6!_ZNKSs4sizeEv () from c:\MinGW\bin\libstdc+±6.dll
#1 0x6fcba6f1 in libstdc+±6!_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKSbIS4_S5_T1_E ()
from c:\MinGW\bin\libstdc+±6.dll
#2 0x00401453 in _fu0___ZSt4cout ()
#3 0x004010b9 in __mingw_CRTStartup () at …/mingw/crt1.c:244
#4 0x00401284 in mainCRTStartup () at …/mingw/crt1.c:264
Any idea what is going on here? I’m cross-posting to llvm-dev since I’m not sure if this is a Clang or LLVM codegen issue.
Clang verbose output:
clang version 3.2
Target: i686-pc-mingw32
Thread model: posix
“C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin/clang++.exe” -cc1 -triple i686-pc-mingw32 -S -disable-free -main-file-name test1.cpp -mrelocation-model static -mdisable-fp-elim -fmath-errno -mconstructor-aliases -target-cpu pentium4 -momit-leaf-frame-pointer -v -resource-dir “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin\…\lib\clang\3.2” -fmodule-cache-path “C:\Users\JHOLEW~1\AppData\Local\Temp\clang-module-cache” -O0 -fdeprecated-macro -fno-dwarf-directory-asm -ferror-limit 19 -fmessage-length 129 -mstackrealign -fno-use-cxa-atexit -fgnu-runtime -fobjc-runtime-has-arc -fobjc-runtime-has-weak
-fobjc-fragile-abi -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017384.s -x c++ “…\clang-x86-self\test1.cpp”
clang -cc1 version 3.2 based upon LLVM 3.2svn default target i686-pc-mingw32
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.0”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.0/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.0/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.0/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.1”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.1/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.1/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.1/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.2”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.2/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.2/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.2/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.3”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.3/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.3/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.3/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.4”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.4/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.4/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.5.4/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.0”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.0/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.0/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.0/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.1”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.1/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.1/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.1/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.2”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.2/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.2/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.2/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.3”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.3/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.3/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.6.3/backward”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.7.0”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.7.0/x86_64-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.7.0/i686-w64-mingw32”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin…\lib\clang\3.2/…/…/…/include/c++/4.7.0/backward”
ignoring nonexistent directory “/mingw/lib/gcc/mingw32/4.5.2/include/c++”
ignoring nonexistent directory “/mingw/lib/gcc/mingw32/4.5.2/include/c++/mingw32”
ignoring nonexistent directory “/mingw/lib/gcc/mingw32/4.5.2/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.3/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.3/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.3/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.2/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.2/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.2/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.1/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.1/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.6.1/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.2/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.2/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.2/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.0/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.0/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.5.0/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.4.0/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.4.0/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.4.0/include/c++/backward”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.3.0/include/c++”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.3.0/include/c++/mingw32”
ignoring nonexistent directory “c:/MinGW/lib/gcc/mingw32/4.3.0/include/c++/backward”
ignoring nonexistent directory “/usr/local/include”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin/…/lib/clang/3.2/…/…/…/i686-w64-mingw32/include”
ignoring nonexistent directory “C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin/…/lib/clang/3.2/…/…/…/x86_64-w64-mingw32/include”
ignoring nonexistent directory “/usr/include”
#include “…” search starts here:
#include <…> search starts here:
c:/MinGW/lib/gcc/mingw32/4.7.0/include/c++
c:/MinGW/lib/gcc/mingw32/4.7.0/include/c++/mingw32
c:/MinGW/lib/gcc/mingw32/4.7.0/include/c++/backward
C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin/…/lib/clang/3.2/include
C:/Users/jholewinski/projects/llvm/build/clang-x86-mingw32/bin/…/lib/clang/3.2/…/…/…/include
/mingw/include
c:/mingw/include
End of search list.
“c:/MinGW/bin/g++.exe” -O0 -v -c -o C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o -x assembler C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017384.s
Using built-in specs.
COLLECT_GCC=c:/MinGW/bin/g++.exe
Target: mingw32
Configured with: …/gcc-4.7.0/configure --enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry --enable-libstdcxx-debug --disable-build-poststage1-with-cxx --enable-version-specific-runtime-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.7.0 (GCC)
COLLECT_GCC_OPTIONS=’-O0’ ‘-v’ ‘-c’ ‘-o’ ‘C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o’ ‘-shared-libgcc’ ‘-mtune=i386’ ‘-march=i386’
c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/bin/as.exe -o C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017384.s
COMPILER_PATH=c:/mingw/bin/…/libexec/gcc/mingw32/4.7.0/;c:/mingw/bin/…/libexec/gcc/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/bin/
LIBRARY_PATH=c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/;c:/mingw/bin/…/lib/gcc/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/lib/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/;/mingw/lib/
COLLECT_GCC_OPTIONS=’-O0’ ‘-v’ ‘-c’ ‘-o’ ‘C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o’ ‘-shared-libgcc’ ‘-mtune=i386’ ‘-march=i386’
“c:/MinGW/bin/g++.exe” -O0 -v -o test1.exe C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o
Using built-in specs.
COLLECT_GCC=c:/MinGW/bin/g++.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/…/libexec/gcc/mingw32/4.7.0/lto-wrapper.exe
Target: mingw32
Configured with: …/gcc-4.7.0/configure --enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry --enable-libstdcxx-debug --disable-build-poststage1-with-cxx --enable-version-specific-runtime-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.7.0 (GCC)
COMPILER_PATH=c:/mingw/bin/…/libexec/gcc/mingw32/4.7.0/;c:/mingw/bin/…/libexec/gcc/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/bin/
LIBRARY_PATH=c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/;c:/mingw/bin/…/lib/gcc/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/lib/;c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/;/mingw/lib/
COLLECT_GCC_OPTIONS=’-O0’ ‘-v’ ‘-o’ ‘test1.exe’ ‘-shared-libgcc’ ‘-mtune=i386’ ‘-march=i386’
c:/mingw/bin/…/libexec/gcc/mingw32/4.7.0/collect2.exe -Bdynamic -u ___register_frame_info -u ___deregister_frame_info -o test1.exe c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/crt2.o c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/crtbegin.o -Lc:/mingw/bin/…/lib/gcc/mingw32/4.7.0 -Lc:/mingw/bin/…/lib/gcc -Lc:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/…/…/mingw32/lib -Lc:/mingw/bin/…/lib/gcc/mingw32/4.7.0/…/…/… -L/mingw/lib C:/Users/JHOLEW~1/AppData/Local/Temp/test1-017385.o -lstdc++ -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt c:/mingw/bin/…/lib/gcc/mingw32/4.7.0/crtend.o
