[PATCH] gas: sframe: fix PR gas/33277

[Jens Remus]

On 11/3/2025 9:25 PM, Indu Bhagat wrote:
> In SFrame stack trace format, the representation of stack offsets allows
> for either 1-byte, 2-byte or 4-byte integers.
> 
> Add new internal function sframe_fre_stack_offset_bound_p () which
> checks if the given offset is within bounds (at most as a 4-byte
> integer).  Use this to check if CFA offset is within bounds, if not skip
> emitting the FDE, and warn the user.
> 
> gas/
> 	PR gas/33277
>         * gen-sframe.c (sframe_fre_stack_offset_bound_p): New
> 	definition.
>         (sframe_xlate_do_def_cfa): Check bounds of offset.
>         (sframe_xlate_do_def_cfa_offset): Likewise.
> 
> gas/testsuite/
> 	PR gas/33277
>         * gas/cfi-sframe/cfi-sframe.exp: Add new test.
>         * gas/cfi-sframe/cfi-sframe-x86_64-empty-pr33277.d: Likewise.
>         * gas/cfi-sframe/cfi-sframe-x86_64-empty-pr33277.s: Likewise.

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

Regards,
Jens
-- 
Jens Remus
Linux on Z Development (D3303)
+49-7031-16-1128 Office
jremus@de.ibm.com

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