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| author | Andrey Ryabinin <a.ryabinin@samsung.com> | 2014-08-08 14:12:17 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-08-27 15:40:11 +0100 |
| commit | 55f0fb6adb83a5883589e945cbce37e90615ea09 (patch) | |
| tree | 8cba5137c2b419c4902a2bc84526e5ddbcc9db4a | |
| parent | 52addcf9d6669fa439387610bc65c92fa0980cef (diff) | |
| download | linux-55f0fb6adb83a5883589e945cbce37e90615ea09.tar.bz2 | |
ARM: 8127/1: module: add support for R_ARM_TARGET1 relocations
Kernel module build with GCOV profiling fails to load with the
following error:
$ insmod test_module.ko
test_module: unknown relocation: 38
insmod: can't insert 'test_module.ko': invalid module format
This happens because constructor pointers in the .init_array section
have not supported R_ARM_TARGET1 relocation type.
Documentation (ELF for the ARM Architecture) says:
"The relocation must be processed either in the same way as R_ARM_REL32 or
as R_ARM_ABS32: a virtual platform must specify which method is used."
Since kernel expects to see absolute addresses in .init_array R_ARM_TARGET1
relocation type should be treated the same way as R_ARM_ABS32.
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/include/asm/elf.h | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/module.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h index f4b46d39b9cf..afb9cafd3786 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_ABS32 2 #define R_ARM_CALL 28 #define R_ARM_JUMP24 29 +#define R_ARM_TARGET1 38 #define R_ARM_V4BX 40 #define R_ARM_PREL31 42 #define R_ARM_MOVW_ABS_NC 43 diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 45e478157278..6a4dffefd357 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -91,6 +91,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex, break; case R_ARM_ABS32: + case R_ARM_TARGET1: *(u32 *)loc += sym->st_value; break; |