Re: [PATCH 1/2] sh: mcount.S: fix build error when PRINTK is not enabled

From: Randy Dunlap
Date: Tue Nov 16 2021 - 00:35:40 EST


On 11/15/21 2:10 AM, Geert Uytterhoeven wrote:
Hi Randy,

On Mon, Nov 15, 2021 at 7:41 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
Fix a build error in mcount.S when CONFIG_PRINTK is not enabled.
Fixes this build error:

sh2-linux-ld: arch/sh/lib/mcount.o: in function `stack_panic':
(.text+0xec): undefined reference to `dump_stack'

Fixes: e460ab27b6c3e ("sh: Fix up stack overflow check with ftrace disabled.")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks for your patch!

Possibly even more of this function should conditionally not be built...

What about making STACK_DEBUG depend on PRINTK instead?
It doesn't make much sense to enable the former, if you won't print
any output...

Hi Geert,
That works. Thanks for the suggestion.

I'll send a v2.
--
~Randy