On 4/6/2026 8:49 PM, Dylan Hatch wrote: > Build with -Wa,--gsframe-3 flags to generate a .sframe section. This > will be used for in-kernel reliable stacktrace in cases where the frame > pointer alone is insufficient. > > Currently, the sframe format only supports arm64, x86_64 and s390x > architectures. > > Signed-off-by: Weinan Liu <[email protected]> > Signed-off-by: Dylan Hatch <[email protected]> > Reviewed-by: Prasanna Kumar T S M <[email protected]>
> diff --git a/arch/arm64/include/asm/unwind_sframe.h > b/arch/arm64/include/asm/unwind_sframe.h > @@ -0,0 +1,12 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef _ASM_ARM64_UNWIND_SFRAME_H > +#define _ASM_ARM64_UNWIND_SFRAME_H > + > +#ifdef CONFIG_ARM64 Nit: If I am not mistaken above guard for CONFIG_ARM64 is superfluous, as this resides in arch/arm64/ anyway. x86 needs to guard with CONFIG_X86_64, as only x86 64-bit supports SFrame (and not x86 32-bit nor x86 X32). > + > +#define SFRAME_REG_SP 31 > +#define SFRAME_REG_FP 29 > + > +#endif > + > +#endif /* _ASM_ARM64_UNWIND_SFRAME_H */ Regards, Jens -- Jens Remus Linux on Z Development (D3303) [email protected] / [email protected] IBM Deutschland Research & Development GmbH; Vorsitzender des Aufsichtsrats: Wolfgang Wendt; Geschäftsführung: David Faller; Sitz der Gesellschaft: Ehningen; Registergericht: Amtsgericht Stuttgart, HRB 243294 IBM Data Privacy Statement: https://www.ibm.com/privacy/
