How to use DDD for kernel debugging of a local Qemu virtual machine?

Question

I want to use GNU DDD (gdb graphic shell) to debug Linux kernel, that is running (in some distro) inside qemu.

I have vmlinux image outside of Qemu, and launch Qemu with -s -S, so it acts like gdbserver (stops at start and waits for debuging commands). Now, how to connect DDD to that gdbserver using local vmlinux image?

Should I just open image and tell gdb 'target remote'?

score 2 · Answer 1 · answered Jan 10 '14 at 12:41

2

With minor adjustments, you can use procedure described in great detail here.

A picture from this tutorial:

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answered Jan 10 '14 at 12:41

VividD

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score 2 · Accepted Answer · answered May 23 '11 at 07:22

2

You basically answered your own question - yes, use target remote gdb command in ddd to connect:

$ gdb qemuKernelFile
(gdb) target remote localhost:1234

answered May 23 '11 at 07:22

gby

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How to use DDD for kernel debugging of a local Qemu virtual machine?

2 Answers2