[PATCH v4 2/8] arm64, unwind: build kernel with sframe V3 info

[Jens Remus]

On 4/22/2026 12:51 AM, 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 <wnliu at google.com>
> Reviewed-by: Prasanna Kumar T S M <ptsm at linux.microsoft.com>
> Signed-off-by: Dylan Hatch <dylanbhatch at google.com>

Reviewed-by: Jens Remus <jremus at linux.ibm.com>

> ---
>  MAINTAINERS                            |  1 +
>  Makefile                               |  8 ++++++++
>  arch/Kconfig                           | 21 +++++++++++++++++++++
>  arch/arm64/Kconfig                     |  1 +
>  arch/arm64/include/asm/unwind_sframe.h |  8 ++++++++
>  arch/arm64/kernel/vdso/Makefile        |  2 +-
>  include/asm-generic/sections.h         |  4 ++++
>  include/asm-generic/vmlinux.lds.h      | 15 +++++++++++++++
>  8 files changed, 59 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm64/include/asm/unwind_sframe.h
Regards,
Jens
-- 
Jens Remus
Linux on Z Development (D3303)
jremus at de.ibm.com / jremus at linux.ibm.com

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