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| author | Tiezhu Yang <yangtiezhu@loongson.cn> | 2025-02-11 19:50:11 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:44:35 +0200 |
| commit | 4f47818652684c185210a4c625e757f9e08d2e95 (patch) | |
| tree | 3078481dff18b2c64ada1c33a3374936a27ac283 /tools/objtool/arch/x86/decode.c | |
| parent | 5c747362c357cd2c91331a0aee28576c8589c688 (diff) | |
| download | linux-4f47818652684c185210a4c625e757f9e08d2e95.tar.gz linux-4f47818652684c185210a4c625e757f9e08d2e95.tar.bz2 linux-4f47818652684c185210a4c625e757f9e08d2e95.zip | |
objtool: Handle different entry size of rodata
[ Upstream commit 091bf313f8a852a7f30c3a8dcef569edfd06f5dc ]
In the most cases, the entry size of rodata is 8 bytes because the
relocation type is 64 bit. There are also 32 bit relocation types,
the entry size of rodata should be 4 bytes in this case.
Add an arch-specific function arch_reloc_size() to assign the entry
size of rodata for x86, powerpc and LoongArch.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/20250211115016.26913-3-yangtiezhu@loongson.cn
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Stable-dep-of: ef753d66051c ("objtool: Fix detection of consecutive jump tables on Clang 20")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/objtool/arch/x86/decode.c')
| -rw-r--r-- | tools/objtool/arch/x86/decode.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index fe1362c34564..fb9691a34d92 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -852,3 +852,16 @@ bool arch_is_embedded_insn(struct symbol *sym) return !strcmp(sym->name, "retbleed_return_thunk") || !strcmp(sym->name, "srso_safe_ret"); } + +unsigned int arch_reloc_size(struct reloc *reloc) +{ + switch (reloc_type(reloc)) { + case R_X86_64_32: + case R_X86_64_32S: + case R_X86_64_PC32: + case R_X86_64_PLT32: + return 4; + default: + return 8; + } +} |