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svdavidson writes in Bug 459: add support for x86_64 relocations from modutils 2.4.27

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This commit is contained in:
Mike Frysinger 2005-10-02 06:44:39 +00:00
parent e6d5539ebb
commit 91fbdac6ab
1 changed files with 72 additions and 1 deletions
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73
modutils/insmod.c
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@ -296,6 +296,9 @@ extern int insmod_ng_main( int argc, char **argv);
#if defined(__x86_64__)
#define MATCH_MACHINE(x) (x == EM_X86_64)
#define SHT_RELM SHT_RELA
#define CONFIG_USE_GOT_ENTRIES
#define CONFIG_GOT_ENTRY_SIZE 8
#define CONFIG_USE_SINGLE
#define Elf64_RelM Elf64_Rela
#define ELFCLASSM ELFCLASS64
#endif
@ -858,7 +861,6 @@ arch_apply_relocation(struct obj_file *f,
switch (ELF32_R_TYPE(rel->r_info)) {
#if defined(__arm__)
case R_ARM_NONE:
break;
@ -1010,6 +1012,75 @@ arch_apply_relocation(struct obj_file *f,
*loc += v - got;
break;
#elif defined(__x86_64__)
case R_X86_64_NONE:
break;
case R_X86_64_64:
*loc += v;
break;
case R_X86_64_32:
*(unsigned int *) loc += v;
if (v > 0xffffffff)
{
ret = obj_reloc_overflow; /* Kernel module compiled without -mcmodel=kernel. */
/* error("Possibly is module compiled without -mcmodel=kernel!"); */
}
break;
case R_X86_64_32S:
*(signed int *) loc += v;
break;
case R_X86_64_16:
*(unsigned short *) loc += v;
break;
case R_X86_64_8:
*(unsigned char *) loc += v;
break;
case R_X86_64_PC32:
*(unsigned int *) loc += v - dot;
break;
case R_X86_64_PC16:
*(unsigned short *) loc += v - dot;
break;
case R_X86_64_PC8:
*(unsigned char *) loc += v - dot;
break;
case R_X86_64_GLOB_DAT:
case R_X86_64_JUMP_SLOT:
*loc = v;
break;
case R_X86_64_RELATIVE:
*loc += f->baseaddr;
break;
case R_X86_64_GOT32:
case R_X86_64_GOTPCREL:
goto bb_use_got;
#if 0
assert(isym != NULL);
if (!isym->gotent.reloc_done)
{
isym->gotent.reloc_done = 1;
*(Elf64_Addr *)(ifile->got->contents + isym->gotent.offset) = v;
}
/* XXX are these really correct? */
if (ELF64_R_TYPE(rel->r_info) == R_X86_64_GOTPCREL)
*(unsigned int *) loc += v + isym->gotent.offset;
else
*loc += isym->gotent.offset;
break;
#endif
#elif defined(__mc68000__)
case R_68K_NONE: