Thx Joerg & Guenter,
Cool work!
Acked-by: Guo Ren <guoren@xxxxxxxxxx>
Approve to next branch.
On Tue, Jul 21, 2020 at 9:21 PM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
>
> On Tue, Jul 21, 2020 at 01:23:14PM +0200, Joerg Roedel wrote:
> > From: Joerg Roedel <jroedel@xxxxxxx>
> >
> > Building a kernel for the CSKY architecture with CONFIG_FRAME_POINTER
> > set requires a gcc supporting the non-upstream '-mbacktrace' option.
> > Check for the '-mbacktrace' option before enabling CONFIG_FRAMEPOINTER
> > and fix building CSKY with an upstream gcc compiler.
> >
> > Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
>
> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
>
> > ---
> > arch/csky/Kconfig | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
> > index bd31ab12f77d..1622e1c56026 100644
> > --- a/arch/csky/Kconfig
> > +++ b/arch/csky/Kconfig
> > @@ -8,7 +8,7 @@ config CSKY
> > select ARCH_HAS_SYNC_DMA_FOR_DEVICE
> > select ARCH_USE_BUILTIN_BSWAP
> > select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2
> > - select ARCH_WANT_FRAME_POINTERS if !CPU_CK610
> > + select ARCH_WANT_FRAME_POINTERS if (!CPU_CK610 && STACKTRACE_SUPPORT)
> > select COMMON_CLK
> > select CLKSRC_MMIO
> > select CSKY_MPINTC if CPU_CK860
> > @@ -125,7 +125,7 @@ config MMU
> > def_bool y
> >
> > config STACKTRACE_SUPPORT
> > - def_bool y
> > + def_bool $(success,echo 'int foo(void) { return 0; }' | $(CC) -mbacktrace -x c - -c -o /dev/null)
> >
> > config TIME_LOW_RES
> > def_bool y
> > --
> > 2.27.0
> >
--
Best Regards
Guo Ren
ML: https://lore.kernel.org/linux-csky/
