Ash*_*egi 6 64-bit wxwidgets cygwin gdb mingw-w64
我正在尝试使用 gdb 调试 mingw-w64 编译的 32 位二进制文件。然而，gdb 给出了很多警告并且不显示任何堆栈跟踪。我怎样才能正常调试这个过程？
以下是一些相关细节：
--host=i686-w64-mingw32 --build=i686-pc-cygwin标志与 wxWidgets 一起使用configure。
ashish@DESKTOP-133N35M /cygdrive/c/Users/ashish/work/reachit
$ gdb program.exe
GNU gdb (GDB) (Cygwin 7.10.1-1) 7.10.1
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from program.exe...done.
(gdb) b ReachItButton::OnChar(wxKeyEvent&)
Breakpoint 1 at 0x734672: file binReach.cpp, line 49.
(gdb) r
Starting program: /cygdrive/c/Users/ashish/work/reachit/program.exe
[New Thread 6148.0x184]
warning: `/cygdrive/c/Windows/SYSTEM32/ntdll.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386.
warning: `/cygdrive/c/Windows/System32/wow64.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386.
warning: `/cygdrive/c/Windows/System32/wow64win.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386.
warning: dll path for "WOW64_IMAGE_SECTION" can not be evaluated
warning: Could not load shared library symbols for WOW64_IMAGE_SECTION.
Do you need "set solib-search-path" or "set sysroot"?
warning: dll path for "WOW64_IMAGE_SECTION" can not be evaluated
warning: Could not load shared library symbols for WOW64_IMAGE_SECTION.
Do you need "set solib-search-path" or "set sysroot"?
warning: dll path for "NOT_AN_IMAGE" can not be evaluated
warning: Could not load shared library symbols for NOT_AN_IMAGE.
Do you need "set solib-search-path" or "set sysroot"?
warning: dll path for "NOT_AN_IMAGE" can not be evaluated
warning: Could not load shared library symbols for NOT_AN_IMAGE.
Do you need "set solib-search-path" or "set sysroot"?
warning: `/cygdrive/c/Windows/System32/wow64cpu.dll': Shared library architecture i386:x86-64 is not compatible with target architecture i386.
[New Thread 6148.0x2b4]
[New Thread 6148.0x314]
[New Thread 6148.0x103c]
12:33:26: mylog In ReachItPanel :
12:33:28: mylog In ReachItButton.. onChar
gdb: unknown target exception 0x4000001f at 0x734672
Program received signal ?, Unknown signal.
0x0009dfe8 in ?? ()
(gdb) bt
#0 0x0009dfe8 in ?? ()
#1 0x00000000 in ?? ()
(gdb) q
A debugging session is active.
Inferior 1 [process 6148] will be killed.
Quit anyway? (y or n) y
ashish@DESKTOP-133N35M /cygdrive/c/Users/ashish/work/reachit
$
在 config.log 中，我给出了 gcc/configue ：-C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=i686-w64-mingw32
/cygdrive/i/szsz/tmpp/cygwin64/mingw64-i686/mingw64-i686-gcc-5.4.0-4.x86_64/src/gcc-5.4.0/configure --srcdir=/cygdrive/i/szsz/tmpp/cygwin64/mingw64-i686/mi
ngw64-i686-gcc-5.4.0-4.x86_64/src/gcc-5.4.0 --prefix=/usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc --docdir=/usr/share/doc/mingw64-i686-gcc --htmldir=/usr/
share/doc/mingw64-i686-gcc/html -C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=i686-w64-mingw32 --without-libiconv-prefix --without-libintl-prefix --with-sysr
oot=/usr/i686-w64-mingw32/sys-root --with-build-sysroot=/usr/i686-w64-mingw32/sys-root --disable-multilib --disable-win32-registry --enable-languages=c,ada,c++,fortran,lto,
objc,obj-c++ --enable-fully-dynamic-string --enable-graphite --enable-libgomp --enable-libquadmath --enable-libquadmath-support --enable-libssp --enable-version-specific-ru
ntime-libs --with-dwarf2 --with-gnu-ld --with-gnu-as --with-tune=generic --with-cloog-include=/usr/include/cloog-isl --with-system-zlib --enable-threads=posix --libexecdir=
/usr/lib
Gdb是64位，二进制是32位。我可以尝试使用 64 位二进制文件，但我不确定为什么 mingw-w64 g++ 编译器不生成 64 位二进制文件。
cygwin 是 64 位的。
我已经编译了二进制文件：
i686-w64-mingw32-g++ -ggdb -O0 binReach.cpp `wx-config --cxxflags
--libs std` -Wall -o program -static-libgcc -static-libstdc++ -Wl,
-Bstatic,-lstdc++,-lpthread -Wl,-Bdynamic