未定义的引用`__stack_chk_fail' [英] undefined reference to `__stack_chk_fail'

问题描述

编译C ++代码时出现此错误：

 未定义引用`__stack_chk_fail'
  
 
 
 
已尝试的选项：
 
 
添加-fno- stack-protector在编译时 - 没有工作，错误仍然存​​在
 
 
在我的代码中添加了一个虚拟实现void __stack_chk_fail（void）。仍然遇到同样的错误。
 
 
详细错误：
  / u / ac / alanger / gurobi / gurobi400 / linux64 / lib / libgurobi_c ++ a（Env.o）（.text + 0x1034）：在函数`GRBEnv :: getPar / u / ac /在函数`GRBEnv :: getParamInfo（GRB_StringParam，std :: basic_string< char，std :: char_traits< char>，std：char_traits< char>，...）中，使用下面的函数：gurobi / gurobi400 / linux64 / lib / libgurobi_c ++。 ：allocator< char>>& std :: basic_string< char，std :: char_traits< char> ;, std :: allocator< char>&）;：
：undefined reference to`__stack_chk_fail' 
 amInfo（GRB_StringParam，std :: basic_string< char，std :: char_traits< char>，std :: allocator< char>>& std :: basic_string< char，std :: char_traits& std :: allocator< char>>&）'：
：**未定义的引用`__stack_chk_fail'** 
  
早些时候，我得到了10个这样的错误。发现我使用的预编译库的 gcc 与 gcc 版本之间存在版本不匹配我用来编译代码。更新了 gcc ，现在我只得到其中两个错误。
 
 
 
有任何帮助吗？ 
解决方案
 libgurobi_c ++。a是用-fno-stack-protector编译的（很明显）。
 
 
 
有几件事情想起来了：
 
 
添加 -fno-stack-protector 链接。 
 
 
手动链接 -lssp  
 
 
将您的虚拟版本__stack_chk_fail ）在它自己的对象文件中，并将此.o文件添加到链接器命令 AFTER  libgurobi_c ++。 GCC / G ++在链接期间从左到右解析符号，尽管你的代码具有定义的函数，包含__stack_chk_fail符号的对象的副本需要在libgurobi_c ++右边的链接行上。a。
 
 
 
Getting this error while compiling C++ code:
undefined reference to `__stack_chk_fail'
Options already tried:

added -fno-stack-protector while compiling - did not work, error persists
added a dummy implementation of void __stack_chk_fail(void) in my code. Still getting the same error.
Detailed Error:
/u/ac/alanger/gurobi/gurobi400/linux64/lib/libgurobi_c++.a(Env.o)(.text+0x1034): In function `GRBEnv::getPar/u/ac/alanger/gurobi/gurobi400/linux64/lib/libgurobi_c++.a(Env.o)(.text+0x1034): In function `GRBEnv::getParamInfo(GRB_StringParam, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&)':
: undefined reference to `__stack_chk_fail'
amInfo(GRB_StringParam, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&)':
: **undefined reference to `__stack_chk_fail'**
Earlier, I was getting 10's of such errors. Found out that there was a version mismatch between the gcc of the pre-compiled libraries I am using and the gcc version I was using to compile the code. Updated gcc and now I am getting only 2 of these errors.

Any help, please? 
解决方案
libgurobi_c++.a was compiled with -fno-stack-protector (obviously).

A few things come to mind:

add -fno-stack-protector when linking.  This will make sure that libssp gets linked.
Manually link -lssp
Make your dummy version of __stack_chk_fail(void) in it's own object file and and add this .o file to your linker command AFTER libgurobi_c++.a.  GCC/G++ resolves symbols from left to right during linking so despite your code having the function defined, a copy of an object containing the __stack_chk_fail symbol needs to be on the linker line to the right of libgurobi_c++.a.


                        
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