diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/i386/reloc.h | 26 | ||||
-rw-r--r-- | arch/x86_64/reloc.h | 28 |
2 files changed, 54 insertions, 0 deletions
diff --git a/arch/i386/reloc.h b/arch/i386/reloc.h new file mode 100644 index 00000000..02b5fa02 --- /dev/null +++ b/arch/i386/reloc.h @@ -0,0 +1,26 @@ +#include <string.h> +#include <elf.h> + +#define IS_COPY(x) ((x)==R_386_COPY) + +static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend) +{ + switch(type) { + case R_386_32: + *reloc_addr += sym_val; + break; + case R_386_PC32: + *reloc_addr += sym_val - (size_t)reloc_addr; + break; + case R_386_GLOB_DAT: + case R_386_JMP_SLOT: + *reloc_addr = sym_val; + break; + case R_386_RELATIVE: + *reloc_addr += (size_t)base_addr; + break; + case R_386_COPY: + memcpy(reloc_addr, (void *)sym_val, sym_size); + break; + } +} diff --git a/arch/x86_64/reloc.h b/arch/x86_64/reloc.h new file mode 100644 index 00000000..2db6115d --- /dev/null +++ b/arch/x86_64/reloc.h @@ -0,0 +1,28 @@ +#include <stdint.h> +#include <string.h> +#include <elf.h> + +#define IS_COPY(x) ((x)==R_X86_64_COPY) + +static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend) +{ + switch(type) { + case R_X86_64_GLOB_DAT: + case R_X86_64_JUMP_SLOT: + case R_X86_64_64: + *reloc_addr = sym_val + addend; + break; + case R_X86_64_32: + *(uint32_t *)reloc_addr = sym_val + addend; + break; + case R_X86_64_PC32: + *reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr; + break; + case R_X86_64_RELATIVE: + *reloc_addr = (size_t)base_addr + addend; + break; + case R_X86_64_COPY: + memcpy(reloc_addr, (void *)sym_val, sym_size); + break; + } +} |