在 Cygwin 上编译 vp8 进行调试时出现问题
我有以下版本的 Cygwin、yasm、gcc 和 gdb：
CYGWIN_NT-5.1 Thorondor 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin
yasm 1.1.0.2352
gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
GNU gdb 6.8.0.20080328-cvs (cygwin-special)
我使用以下命令编译了 vp8：
$ ./configure --enable-debug
$ make
但是，当我尝试使用 GDB 进行调试时，出现以下错误：
$ gdb simple_decoder.exe
GNU gdb 6.8.0.20080328-cvs (cygwin-special)
Copyright (C) 2008 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 "i686-pc-cygwin"...
Dwarf Error: bad offset (0x4c4000) in compilation unit header (offset
0x0 + 6) [in module /cygdrive/
c/work/vp8/csim/build/simple_decoder.exe]
(gdb) q
有人可以帮我解决这个问题吗？
谢谢，
阿琼
I have the following versions of Cygwin, yasm, gcc, and gdb:
CYGWIN_NT-5.1 Thorondor 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin
yasm 1.1.0.2352
gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
GNU gdb 6.8.0.20080328-cvs (cygwin-special)
I've compiled vp8 using the following commands:
$ ./configure --enable-debug
$ make
However when I try to debug using GDB, I get the following error:
$ gdb simple_decoder.exe
GNU gdb 6.8.0.20080328-cvs (cygwin-special)
Copyright (C) 2008 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 "i686-pc-cygwin"...
Dwarf Error: bad offset (0x4c4000) in compilation unit header (offset
0x0 + 6) [in module /cygdrive/
c/work/vp8/csim/build/simple_decoder.exe]
(gdb) q
Can someone help me out with this?
Thanks,
Arjun
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您的编译器和 binutils 太旧了。这个问题在 2000 年左右就得到了解决，错误来自于链接器（参见 http ://gcc.gnu.org/ml/gcc-bugs/2000-06/msg00768.html）
Your compiler and binutils are too old. This was solved circa 2000, the fault comes from the linker (see http://gcc.gnu.org/ml/gcc-bugs/2000-06/msg00768.html)