Linux 程序接收信号SIGILL，非法指令
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Program received signal SIGILL, Illegal instruction
提问by Chaks
I am using Linux x86_64 machine to build my program.
I have linked a shared library to an executable. In my project I am calling a function which has declared vector<string>inside the function. My program gets killed when that function gets called.
When debugging through GDB below is the output I get.
我正在使用 Linux x86_64 机器来构建我的程序。我已将共享库链接到可执行文件。在我的项目中，我正在调用一个在函数vector<string>内部声明的函数。当该函数被调用时，我的程序被杀死。当通过下面的 GDB 调试时，我得到了输出。
Program received signal SIGILL, Illegal instruction.
0x00002aaaac4d2be7 in OC_Catalog_c::File_ToText (this=0x611aa0) at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:87
87 : _Tp_alloc_type(__a), _M_start(0), _M_finish(0), _M_end_of_storage(0)
(gdb) bt
0 0x00002aaaac4d2be7 in OC_Catalog_c::File_ToText (this=0x611aa0) at /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_vector.h:87
Is this issue of compilation of my shared library?? Banged my head enough on it. Please help.
这是我的共享库编译的问题吗？？把我的头撞得够多了。请帮忙。
-Chaks
-查克斯
Adding more info for your queries: Yes,function that i am calling File_ToText is a virtual function in class OC_Catalog_c. A member variable of other class has object of class OC_Catalog_c which also have virtual function File_ToText.Using that object I am calling File_ToText function of OC_Catlog_c from virtual function File_ToText. I will show a code snippet:
为您的查询添加更多信息：是的，我调用 File_ToText 的函数是 OC_Catalog_c 类中的虚拟函数。其他类的成员变量具有类 OC_Catalog_c 的对象，该对象也具有虚函数 File_ToText。使用该对象，我从虚函数 File_ToText 调用 OC_Catlog_c 的 File_ToText 函数。我将展示一个代码片段：
class Oc_Catalog_c
{
virtual vector<string> File_ToText (void) const;
}
class B
{
const OC_Catalog_c* m_pCatalog;
virtual vector<string> File_ToText (void) const;
}
vector<string> B::File_ToText( void ) const
{
vector<string> a_SubData;
a_SubData = m_pCatalog->File_ToText();
}
回答by Chaks
Thank you guys for all your help.
I finally figured out the problem that was causing this error.
Debugging more and tracing the instruction I found that program was failing at ud2a instruction.
I was ignoring one warning "warning: cannot pass objects of non-POD type 'struct sqlrw_request_cb' through '...'; call will abort at runtime".
Resolving these warnings fixed my problem related to SIGILL.
More explanation on this link:
ud2a instruction causing SIGILL
谢谢你们的帮助。我终于找出了导致此错误的问题。
调试更多并跟踪指令我发现程序在 ud2a 指令处失败。
我忽略了一个警告“警告：无法通过 '...' 传递非 POD 类型 'struct sqlrw_request_cb' 的对象；调用将在运行时中止”。
解决这些警告解决了我与 SIGILL 相关的问题。
关于此链接的更多解释：
ud2a 指令导致 SIGILL
