[PATCH] sframe: Allow input R_*_NONE relocations

[Indu Bhagat]

On 7/14/25 12:29 PM, H.J. Lu wrote:
> "ld -r" generates R_*_NONE relocations in sframe section if input
> relocations in sframe section are against discarded section.  Allow
> input R_*_NONE relocations if there are more relocation entries than
> SFrame entries, instead of assuming number of SFrame entries == number
> of relocation entries.
> 
> bfd/
> 
> PR ld/33127
> * elf-sframe.c (sframe_decoder_init_func_bfdinfo): Allow input
> R_*_NONE relocations if there are more relocation entries than
> SFrame entries.
> 
> ld/
> 
> PR ld/33127
> * testsuite/ld-x86-64/sframe-reloc-2a.s: New file.
> * testsuite/ld-x86-64/sframe-reloc-2b.s: Likewise.
> * testsuite/ld-x86-64/x86-64.exp: Run PR ld/33127 tests.
> 
> OK for master?
> 

Hi H.J.,

(Apologies for the delay.)

I was trying to reason for SFrame if the generated R_*_NONE entries will 
always be towards the end.  To which the answer is : yes.

SFrame merging code does rely on one-to-one order between FDEs and the 
relas.  So this patch should be OK.

Also, looks like the presence of :
000000000030  000000000000 R_X86_64_NONE                        0
000000000030  000000000000 R_X86_64_NONE                        0

in relas in general should not trip any existing consumer (including ld 
after this patch).

Thanks again
Indu