On Tue, Dec 17, 2024 at 09:09:00AM +0800, Tiezhu Yang wrote:
> When compiling with Clang on LoongArch, there exists unreachable entry of
> rodata which points to a position after the function return instruction,
> this is generated by compiler to fill the non-existent switch case, just
> skip the entry when parsing the relocation section of rodata.
>
> Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
> ---
> tools/objtool/check.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/tools/objtool/check.c b/tools/objtool/check.c
> index cff7416b207e..654cffcf9512 100644
> --- a/tools/objtool/check.c
> +++ b/tools/objtool/check.c
> @@ -1986,9 +1986,10 @@ static int add_jump_table(struct objtool_file *file, struct instruction *insn,
> if (!dest_insn)
> break;
>
> - /* Make sure the destination is in the same function: */
> - if (!insn_func(dest_insn) || insn_func(dest_insn)->pfunc != pfunc)
> - break;
> + if (!insn_func(dest_insn) || insn_func(dest_insn)->pfunc != pfunc) {
> + prev_offset = reloc_offset(reloc);
> + continue;
> + }
This patch can be dropped, this is already fixed in the -tip tree:
3724062ca2b1 ("objtool: Ignore dangling jump table entries")
--
Josh
