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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2023-09-27 11:19:13 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-09-27 11:19:13 +0300 |
| commit | b1dc55a3d6a86cc2c1ae664ad7280bff4c0fc28f (patch) | |
| tree | 2bf80fca659895b93a0eaf379eef3c4fbc247b56 /arch | |
| parent | c1c2ce2d3bf903c50f3da7346d394127ffcc93ac (diff) | |
| download | linux-b1dc55a3d6a86cc2c1ae664ad7280bff4c0fc28f.tar.xz | |
LoongArch: Add support for 64_PCREL relocation type
When build and update kernel with the latest upstream binutils and
loongson3_defconfig, module loader fails with:
kmod: zsmalloc: Unknown relocation type 109
kmod: fuse: Unknown relocation type 109
kmod: fuse: Unknown relocation type 109
kmod: radeon: Unknown relocation type 109
kmod: nf_tables: Unknown relocation type 109
kmod: nf_tables: Unknown relocation type 109
This is because the latest upstream binutils replaces a pair of ADD64
and SUB64 with 64_PCREL, so add support for 64_PCREL relocation type.
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ecb802d02eeb
Cc: <stable@vger.kernel.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/loongarch/kernel/module.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/module.c b/arch/loongarch/kernel/module.c index 9e10c4400743..b13b2858fe39 100644 --- a/arch/loongarch/kernel/module.c +++ b/arch/loongarch/kernel/module.c @@ -376,6 +376,15 @@ static int apply_r_larch_32_pcrel(struct module *mod, u32 *location, Elf_Addr v, return 0; } +static int apply_r_larch_64_pcrel(struct module *mod, u32 *location, Elf_Addr v, + s64 *rela_stack, size_t *rela_stack_top, unsigned int type) +{ + ptrdiff_t offset = (void *)v - (void *)location; + + *(u64 *)location = offset; + return 0; +} + /* * reloc_handlers_rela() - Apply a particular relocation to a module * @mod: the module to apply the reloc to @@ -406,6 +415,7 @@ static reloc_rela_handler reloc_rela_handlers[] = { [R_LARCH_ADD32 ... R_LARCH_SUB64] = apply_r_larch_add_sub, [R_LARCH_PCALA_HI20...R_LARCH_PCALA64_HI12] = apply_r_larch_pcala, [R_LARCH_32_PCREL] = apply_r_larch_32_pcrel, + [R_LARCH_64_PCREL] = apply_r_larch_64_pcrel, }; int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, |