Linux加载ko出现unknown relocation: 38 的解决办法

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Kernel module build with GCOV profiling fails to load with thefollowing error: $ insmod test_module.ko   test_module: unknown relocation: 38   insmod: can't insert 'test_module.ko': invalid module formatThis happens because constructor pointers in the .init_array sectionhave 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_TARGET1relocation type should be treated the same way as R_ARM_ABS32.Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>--- arch/arm/include/asm/elf.h | 1 + arch/arm/kernel/module.c   | 1 + 2 files changed, 2 insertions(+)diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.hindex f4b46d3..afb9caf 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_ABS322 #define R_ARM_CALL28 #define R_ARM_JUMP2429+#define R_ARM_TARGET138 #define R_ARM_V4BX40 #define R_ARM_PREL3142 #define R_ARM_MOVW_ABS_NC43diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.cindex 45e4781..6a4dffe 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; -- 1.8.5.5
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