Re: [RFC PATCH] MIPS: Kconfig: Select ARCH_WANT_FRAME_POINTERS

[Sergei Shtylyov]

On 16.11.2020 12:47, Tiezhu Yang wrote:

[...]
> > > Select ARCH_WANT_FRAME_POINTERS to fix the following build error under
> > > CONFIG_DEBUG_ATOMIC_SLEEP:
> > >
> > >    CC      arch/mips/kernel/signal.o
> > > {standard input}: Assembler messages:
> > > {standard input}:1775: Error: Unable to parse register name $fp
> > > scripts/Makefile.build:283: recipe for target 'arch/mips/kernel/signal.o' 
> > > failed
> > > make[2]: *** [arch/mips/kernel/signal.o] Error 1
> > > scripts/Makefile.build:500: recipe for target 'arch/mips/kernel' failed
> > > make[1]: *** [arch/mips/kernel] Error 2
> > > Makefile:1799: recipe for target 'arch/mips' failed
> > > make: *** [arch/mips] Error 2
> > >
> > > I think it is useful to get debugging information as described in the
> > > following texts:
> > >
> > > lib/Kconfig.debug
> > > config FRAME_POINTER
> > >          bool "Compile the kernel with frame pointers"
> > >          ...
> > >          default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS
> > >          help
> > >            If you say Y here the resulting kernel image will be slightly
> > >            larger and slower, but it gives very useful debugging information
> > >            in case of kernel bugs. (precise oopses/stacktraces/warnings)
> > >
> > > Documentation/dev-tools/kgdb.rst
> > > This option inserts code to into the compiled executable which saves
> >
> >    So to or into? :-)
>
> Hi Sergei,
>
> Thanks for pointing that out，this may be a typo which should be "into".

   Oops, I didn't realize it was a quote from the KGDB docs... :-)

> I will update the commit message to correct it.

   Thank you!

> Thanks,
> Tiezhu

[...]

MBR, Sergei