Messages in this thread | | | From | Arnd Bergmann <> | Date | Tue, 18 Dec 2018 10:07:21 +0100 | Subject | Re: [RFC PATCH 1/3] config: provide a fragment to enable gdb for qemu |
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On Tue, Dec 18, 2018 at 9:45 AM Anders Roxell <anders.roxell@linaro.org> wrote: > > On Thu, 13 Dec 2018 at 13:40, Mark Brown <broonie@kernel.org> wrote: > > > > On Thu, Dec 13, 2018 at 01:29:08PM +0100, Anders Roxell wrote: > > > Adding a fragment to make it easier to know what options is needed to > > > build a kernel to get the that you can debug in qemu. > > > > > @@ -0,0 +1,7 @@ > > > +# Enable debug info for gdb > > > +# CONFIG_COMPILE_TEST is not set > > > +CONFIG_DEBUG_INFO=y > > > +CONFIG_GDB_SCRIPTS=y > > > > Is this specifically for qemu or is this just good for debugging with > > GDB in general (eg, via JTAG)? > > I haven't tried, and I don't have a JTAG so I could test it =/
The DEBUG_INFO=y and (as a dependency for that) CONFIG_COMPILE_TEST are definitely needed for all GDB operation. I would assume that the scripts also work with any other gdb environment, but haven't tried either.
For CONFIG_RANDOMIZE_BASE, I'm not actually sure if that helps or not. I think I originally suggested to Anders to turn that off when he was analyzing a bug, but I don't know if it helped or if it works just as well without that.
Arnd
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