我在带有 Intel Core i7-3612QM 的 64 位 Windows 7 上安装了 32 位 MinGW 和 64 位 Eclipse CDT。当我编译并运行 hello world 时，打印了字符串，但程序随后得到了一个 SIGILL。

来源:

#include <iostream>
using namespace std;

int main() {
    cout << "Hello World!" << endl;
    return 0;
}

堆栈跟踪:

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 会导致段错误:

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

堆栈跟踪:

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。

我该如何解决这个问题？

最佳答案

当我试图在另一台没有安装 MinGW 的计算机上运行 EXE 时，它会提示:

The program can't start because libgcc_s_dw2-1.dll is missing from you computer. Try reinstalling the program to fix this problem.

谷歌搜索这个错误让我想到了 SO 问题 The program can't start because libgcc_s_dw2-1.dll is missing

来自答案:

The libgcc_s_dw2-1.dll should 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，生成的程序在两个系统上都能正常运行。我不确定为什么需要这些标志才能在我的开发系统上正常工作，因为 MinGW bin 目录在 PATH 中。任何人都可以提供解释吗？我应该创建一个单独的问题吗？

关于c++ - MinGW 编译的程序在 64 位 Windows 上崩溃，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14368482/