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,

Mikhail Vladimirov · Accepted Answer · 2013-02-10 07:08:08Z

3

Use jump command as described here.

answered Feb 10, 2013 at 7:08

Mikhail Vladimirov

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aaaaaa123456789 · Accepted Answer · 2013-02-10 07:10:03Z

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Just set a breakpoint on the line you need (using the break command) and jump to it (using the jump command).

answered Feb 10, 2013 at 7:10

aaaaaa123456789

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Community · Accepted Answer · 2017-05-23 12:05:55Z

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

edited May 23, 2017 at 12:05

CommunityBot

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answered Feb 12, 2013 at 7:54

dbrank0

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