From: Ard Biesheuvel <ardb@kernel.org>
MIPS supports PC32 relocations like most other architectures, which will
be used by kallsyms to make its symbol references visible to the linker.
Given that these are place-relative, they can be ignored by the 'relocs'
tool, just like other PC type relocations.
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
arch/mips/boot/tools/relocs.c | 2 ++
arch/mips/include/asm/elf.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/arch/mips/boot/tools/relocs.c b/arch/mips/boot/tools/relocs.c
index 9863e1d5c62e..30809f47415a 100644
--- a/arch/mips/boot/tools/relocs.c
+++ b/arch/mips/boot/tools/relocs.c
@@ -79,6 +79,7 @@ static const char *rel_type(unsigned type)
REL_TYPE(R_MIPS_HIGHEST),
REL_TYPE(R_MIPS_PC21_S2),
REL_TYPE(R_MIPS_PC26_S2),
+ REL_TYPE(R_MIPS_PC32),
#undef REL_TYPE
};
const char *name = "unknown type rel type name";
@@ -522,6 +523,7 @@ static int do_reloc(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
case R_MIPS_PC16:
case R_MIPS_PC21_S2:
case R_MIPS_PC26_S2:
+ case R_MIPS_PC32:
/*
* NONE can be ignored and PC relative relocations don't
* need to be adjusted.
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index dc8d2863752c..aaef0eaa68d5 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -123,6 +123,8 @@
#define R_MIPS_LOVENDOR 100
#define R_MIPS_HIVENDOR 127
+#define R_MIPS_PC32 248
+
#define SHN_MIPS_ACCOMON 0xff00 /* Allocated common symbols */
#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
--
2.52.0.457.g6b5491de43-goog