GDB C++ - 在查看核心转储时检查 STL 容器?
我正在 gdb 中调试我的程序的核心转储(事后分析).我打开它:gdb [程序名称] [核心名称]
I'm debugging a core dump of my program (post-mortem) inside gdb. I opened it with: gdb [program_name] [core_name]
但是，当我尝试检查 STL 向量时，例如打印 vec->size()或者打印 vec->at(0)
However when I attempt to inspect a STL vector, e.g. print vec->size() or print vec->at(0)
我得到了错误
如果没有调试过程，您将无法做到这一点"
"You can't do that without a process to debug"
我只是想检查这些容器的内容和大小.有什么方法可以将虚拟进程附加到核心转储 gdb 检查，以便我可以做到这一点?
I'm just trying to inspect the contents and sizes of these containers. Is there any way to attach a dummy process to a core-dump gdb inspection so I can do this?
推荐答案
打印向量:
(gdb) print *vec
然后熟悉实现向量的内部结构并打印原始缓冲区.通常称为_M_buffer"或类似的名称.根据您的操作方式，缓冲区可能位于其中的内部对象.
Then familiarize yourself with the internals of your implementation's vector and print the raw buffer. Often called "_M_buffer" or something like that. Depending on how yours is done there may be an internal object that the buffer is inside of.
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