Hi, Josh and Peter, I think this series (except the last patch, but that one can be a separate one) is good enough now, right? If so, I think there is some ways to get it upstream: 1) I merge objtool/core from tip.git to the loongarch tree, then apply this whole series with your acked-by; 2) You apply the first 4 patches to tip.git, and then I apply others to the loongarch tree (still need to merge objtool/core before apply to avoid build issues). I prefer the first method, but I can also accept other ways. Huacai On Tue, Dec 17, 2024 at 9:09 AM Tiezhu Yang <yangtiezhu@xxxxxxxxxxx> wrote: > > This version is based on tip/tip.git objtool/core branch [1], add some weak > and arch-specific functions to make the generic code more readable, tested > with the latest upstream mainline Binutils, GCC and Clang. > > The first 6 patches are preparation for patch #7 to enable jump table for > objtool on LoongArch, the last 2 patches are small enough to fix objtool > warnings "funcA() falls through to next function funcB()", one is under > arch/loongarch and the other is under drm/amd/display. > > v6: > -- Add arch_reloc_size() for x86 and ppc. > -- Call arch_reloc_size() directly in add_jump_table(). > -- Refine arch_adjust_offset() for LoongArch. > -- Rename arch_adjust_offset() to arch_jump_table_sym_offset(). > -- Get each table size of rodata in time for switch table. > -- Update the commit message to make it more clear. > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=objtool/core > > Tiezhu Yang (9): > objtool: Handle various symbol types of rodata > objtool: Handle different entry size of rodata > objtool: Handle PC relative relocation type > objtool: Handle unreachable entry of rodata > objtool/LoongArch: Add support for switch table > objtool/LoongArch: Add support for goto table > LoongArch: Enable jump table for objtool > LoongArch: Convert unreachable() to BUG() > drm/amd/display: Mark dc_fixpt_from_fraction() noinline > > arch/loongarch/Kconfig | 3 + > arch/loongarch/Makefile | 6 +- > arch/loongarch/kernel/machine_kexec.c | 4 +- > .../drm/amd/display/dc/basics/fixpt31_32.c | 2 +- > tools/objtool/arch/loongarch/decode.c | 28 ++- > .../objtool/arch/loongarch/include/arch/elf.h | 7 + > tools/objtool/arch/loongarch/special.c | 159 +++++++++++++++++- > tools/objtool/arch/powerpc/decode.c | 15 ++ > tools/objtool/arch/x86/decode.c | 13 ++ > tools/objtool/check.c | 28 ++- > tools/objtool/include/objtool/arch.h | 3 + > 11 files changed, 251 insertions(+), 17 deletions(-) > > -- > 2.42.0 >
