MinGW编译的程序在64位Windows上崩溃 [英] MinGW compiled programs crash on 64 bit Windows
问题描述
我有32位的MinGW和64位的Eclipse CDT安装在64位Windows 7与Intel Core i7-3612QM 。当我编译并运行 hello world 时，字符串打印，但是程序之后会获得 SIGILL 。
I have 32bit MinGW and 64 bit Eclipse CDT installed on 64 bit Windows 7 with an Intel Core i7-3612QM. When I compile and run hello world, the string prints, but the program gets a SIGILL afterward.
来源：
#include <iostream>
using namespace std;
int main() {
cout << "Hello World!" << endl;
return 0;
}
Stacktrace：
Stacktrace:
hello.exe [C/C++ Application]
hello.exe [5532]
Thread [1] 0 (Suspended : Signal : SIGILL:Illegal instruction)
libstdc++-6!_ZSt4cout() at 0x6fccc3c0
libstdc++-6!_ZNSolsEPFRSoS_E() at 0x6fc8908c
_fu0___ZSt4cout() at hello.cpp:5 0x4013be
gdb
添加 cin 会导致segfault：
Adding cin causes a segfault:
资料来源：
#include <iostream>
#include <string>
using namespace std;
int main() {
string name;
cout << "Please type your name: ";
cin >> name;
cout << "Hello " << name << endl;
return 0;
}
详细的编译器输出：
C:\Users\Sean\temp>g++ -v main.cpp
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.6.2/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.6.2/configure --enable-languages=c,c++,ada,fortran,obj
c,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgo
mp --disable-win32-registry --enable-libstdcxx-debug --enable-version-specific-r
untime-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.6.2 (GCC)
COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=i386' '-march=i386'
c:/mingw/bin/../libexec/gcc/mingw32/4.6.2/cc1plus.exe -quiet -v -iprefix c:\min
gw\bin\../lib/gcc/mingw32/4.6.2/ main.cpp -quiet -dumpbase main.cpp -mtune=i386
-march=i386 -auxbase main -version -o C:\Users\Sean\AppData\Local\Temp\ccSVBzeY.
s
GNU C++ (GCC) version 4.6.2 (mingw32)
compiled by GNU C version 4.6.2, GMP version 5.0.1, MPFR version 2.4.1,
MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "c:\mingw\bin\../lib/gcc/mingw32/4.6.2/../../../.
./mingw32/include"
ignoring duplicate directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/inclu
de/c++"
ignoring duplicate directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/inclu
de/c++/mingw32"
ignoring duplicate directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/inclu
de/c++/backward"
ignoring duplicate directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/inclu
de"
ignoring duplicate directory "/mingw/lib/gcc/mingw32/4.6.2/../../../../include"
ignoring duplicate directory "c:/mingw/lib/gcc/../../include"
ignoring duplicate directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/inclu
de-fixed"
ignoring nonexistent directory "c:/mingw/lib/gcc/../../lib/gcc/mingw32/4.6.2/../
../../../mingw32/include"
ignoring duplicate directory "/mingw/include"
#include "..." search starts here:
#include <...> search starts here:
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/mingw32
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/backward
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/../../../../include
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include-fixed
End of search list.
GNU C++ (GCC) version 4.6.2 (mingw32)
compiled by GNU C version 4.6.2, GMP version 5.0.1, MPFR version 2.4.1,
MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: f7eb4168c2cf10318cc29da8d23b7f3c
COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=i386' '-march=i386'
c:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../../../mingw32/bin/as.exe -o C:\User
s\Sean\AppData\Local\Temp\ccb0vTGl.o C:\Users\Sean\AppData\Local\Temp\ccSVBzeY.s
COMPILER_PATH=c:/mingw/bin/../libexec/gcc/mingw32/4.6.2/;c:/mingw/bin/../libexec
/gcc/;c:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../../../mingw32/bin/
LIBRARY_PATH=c:/mingw/bin/../lib/gcc/mingw32/4.6.2/;c:/mingw/bin/../lib/gcc/;c:/
mingw/bin/../lib/gcc/mingw32/4.6.2/../../../../mingw32/lib/;c:/mingw/bin/../lib/
gcc/mingw32/4.6.2/../../../;/mingw/lib/
COLLECT_GCC_OPTIONS='-v' '-shared-libgcc' '-mtune=i386' '-march=i386'
c:/mingw/bin/../libexec/gcc/mingw32/4.6.2/collect2.exe -Bdynamic -u ___register
_frame_info -u ___deregister_frame_info c:/mingw/bin/../lib/gcc/mingw32/4.6.2/..
/../../crt2.o c:/mingw/bin/../lib/gcc/mingw32/4.6.2/crtbegin.o -Lc:/mingw/bin/..
/lib/gcc/mingw32/4.6.2 -Lc:/mingw/bin/../lib/gcc -Lc:/mingw/bin/../lib/gcc/mingw
32/4.6.2/../../../../mingw32/lib -Lc:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../.
. -L/mingw/lib C:\Users\Sean\AppData\Local\Temp\ccb0vTGl.o -lstdc++ -lmingw32 -l
gcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel
32 -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt c:/mingw/bin/../lib/gcc
/mingw32/4.6.2/crtend.o
Stacktrace：
Stacktrace:
hello.exe [C/C++ Application]
hello.exe [9092]
Thread [1] 0 (Suspended : Signal : SIGSEGV:Segmentation fault)
libstdc++-6!_ZNSs12_Alloc_hiderC1EPcRKSaIcE() at 0x6fc89542
libstdc++-6!_ZNSsC1Ev() at 0x6fc8c38b
main() at hello.cpp:7 0x4013a7
gdb
使用32位 code :: blocks 或从命令行手动编译时也会出现问题。
The problems also occur using 32 bit code::blocks or when compiled manually from the command line.
如何解决这个问题？
推荐答案
在另一台没有安装MinGW的计算机上运行EXE，它抱怨：
When I tried to run the EXE on another computer that didn't have MinGW intalled, it complained:
程序无法启动，因为libgcc_s_dw2-1。 dll从你
电脑丢失。尝试重新安装程序以解决此问题。
The program can't start because libgcc_s_dw2-1.dll is missing from you computer. Try reinstalling the program to fix this problem.
搜索该错误导致了我的问题程序无法启动，因为libgcc_s_dw2-1.dll丢失
Googling that error led me to the SO question The program can't start because libgcc_s_dw2-1.dll is missing
从答案：
libgcc_s_dw2 -1.dll应该在编译器的bin目录中。
您可以将此目录添加到
运行时链接的PATH环境变量中，也可以通过向编译器标志添加
-static-libgcc -static-libstdc ++来避免此问题。 / p>
The
libgcc_s_dw2-1.dllshould be in the compiler's bin directory. You can add this directory to your PATH environment variable for runtime linking, or you can avoid the problem by adding "-static-libgcc -static-libstdc++" to your compiler flags.
所以我添加了标志，结果程序在两个系统上正常运行。我不知道为什么这些标志是需要它在我的开发系统上正常工作，因为MinGW bin目录是在PATH。任何人都可以提供解释？我应该创建一个单独的问题吗？
So I added the flags, and the resulting program ran normally on both systems. I'm not sure why these flags were required for it to work properly on my dev system, because the MinGW bin directory is in the PATH. Can anyone provide an explinantion? Should I create a seperate question?
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