[PATCH] c6x: fix unwinding instructions for some values of cfa_offset

[Jan Beulich]

On 27.12.2025 22:31, Richard Braun wrote:
> From: Richard Braun <richard.braun@sbg-systems.com>
> 
> See C6000 EABI (SPRAB89A) Table 21. Stack unwinding instructions.
> 
> gas/
> 	* config/tc-tic6x.c (tic6x_output_unwinding): Fix unwinding
> 	byte value.
> ---
>  gas/config/tc-tic6x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Cc-ing the maintainer to (hopefully) approve this.

Jan

> diff --git a/gas/config/tc-tic6x.c b/gas/config/tc-tic6x.c
> index eb19309d5c9..39a8a7c7eaa 100644
> --- a/gas/config/tc-tic6x.c
> +++ b/gas/config/tc-tic6x.c
> @@ -4975,7 +4975,7 @@ tic6x_output_unwinding (bool need_extab)
>  	  else if (cfa_offset > 0x40)
>  	    {
>  	      tic6x_unwind_byte (UNWIND_OP_ADD_SP | 0x3f);
> -	      tic6x_unwind_byte (UNWIND_OP_ADD_SP | (cfa_offset - 0x40));
> +	      tic6x_unwind_byte (UNWIND_OP_ADD_SP | (cfa_offset - 0x40 - 1));
>  	    }
>  	  else
>  	    {