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Subject[PATCH] arm: R_ARM_REL32 relocation support
Date
commit d0679c730395d0bde9a46939e7ba255b4ba7dd7c moved -fno-dwarf2-cfi-asm to be
powerpc-only, causing R_ARM_REL32 to be used with some toolchains on ARM.

Implement support for it to make modules work with more toolchains.

Signed-off-by: Olof Johansson <olof@lixom.net>
---
arch/arm/include/asm/elf.h | 1 +
arch/arm/kernel/module.c | 4 ++++
2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 51662fe..b1f1991 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -50,6 +50,7 @@ typedef struct user_fp elf_fpregset_t;
#define R_ARM_NONE 0
#define R_ARM_PC24 1
#define R_ARM_ABS32 2
+#define R_ARM_REL32 3
#define R_ARM_CALL 28
#define R_ARM_JUMP24 29
#define R_ARM_V4BX 40
diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index c628bdf..ec9526d 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -132,6 +132,10 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
*(u32 *)loc += sym->st_value;
break;

+ case R_ARM_REL32:
+ *(u32 *)loc += sym->st_value - loc;
+ break;
+
case R_ARM_PC24:
case R_ARM_CALL:
case R_ARM_JUMP24:
--
1.5.6.5


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