gdb step debugging a C program

Question

Consider a case where a function has 10 lines of code and you are doing a step debugging via GDB and are on line six. You realize that function call at line 4 did some goof up due to which you are at line 5.

Assuming that line 4 function call does not do anything drastic (mem free, etc) you wish to make your SP point @ line 4 and step into that func without re-running that test case.

I have been able to do it by doing registry modification.

What I wanted to know, are there some gdb commands which can help me achieve the above without manual registry mod.

Thanks,

Answer 1

使用此处所述的jump命令。

Answer 2

只需在您需要的行上设置一个断点（使用 break 命令）并跳转到它（使用 jump 命令）。

Answer 3

If I understand correctly, you want to "step back". This is supported by GDB since version 7. See manual , tutorial or related Stackoverflow topic .