如何在GDB中编译C ++代码? [英] How to compile C++ code in GDB?

问题描述

我正在遵循本手册:

https://sourceware.org/gdb/onlinedocs /gdb/Compiling-and-Injecting-Code.html

$ gdb ./test
(gdb) break main
(gdb) run
(gdb) compile code std::cout << "Hello world\n";
No compiler support for language c++.
(gdb) compile code print("hello world")
No compiler support for language c++.

这是否意味着不支持g ++?还是我需要以某种特殊的方式配置GDB?

Does this mean that g++ is not supported? Or I need to configure GDB in some special way?

推荐答案

这很可能是您使用的调试器太旧了. 在7.12之前(甚至更晚)，用户听起来无法重新定义compile-gcc符号.结果，似乎没有办法为C ++指定编译器..尽管如此，问题已得到报告并得到解决. 我猜最好的解决方案是通过从

This is very likely that the debugger you are using is too old. It sounds too me that prior to 7.12 (maybe even later), user cannot redefine the compile-gcc symbol. As a result, there seems to be no way to specify a compiler for C++.. Nevertheless, the issue has been reported and addressed. I guess the best solution is to update gdb to a newer version, by compiling it from the official repository.

另一种解决方案是手动预编译代码，然后在gdb中手动注入代码，如此处.听起来很有趣，但不确定这是否简单！

Another solution would be to pre-compile the code manually and inject it manually within gdb, as explained here. Sounds fun but not sure this is the easy way!

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