diff options
Diffstat (limited to 'arch/h8300/kernel/module.c')
-rw-r--r-- | arch/h8300/kernel/module.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c deleted file mode 100644 index cd802cc78d97..000000000000 --- a/arch/h8300/kernel/module.c +++ /dev/null @@ -1,71 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/moduleloader.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/kernel.h> - -int apply_relocate_add(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr; - - pr_debug("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) { - /* This is where to make the change */ - uint32_t *loc = - (uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr - + rela[i].r_offset); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rela[i].r_info); - uint32_t v = sym->st_value + rela[i].r_addend; - - switch (ELF32_R_TYPE(rela[i].r_info)) { - case R_H8_DIR24R8: - loc = (uint32_t *)((uint32_t)loc - 1); - *loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v); - break; - case R_H8_DIR24A8: - if (ELF32_R_SYM(rela[i].r_info)) - *loc += v; - break; - case R_H8_DIR32: - case R_H8_DIR32A16: - *loc += v; - break; - case R_H8_PCREL16: - v -= (unsigned long)loc + 2; - if ((Elf32_Sword)v > 0x7fff || - (Elf32_Sword)v < -(Elf32_Sword)0x8000) - goto overflow; - else - *(unsigned short *)loc = v; - break; - case R_H8_PCREL8: - v -= (unsigned long)loc + 1; - if ((Elf32_Sword)v > 0x7f || - (Elf32_Sword)v < -(Elf32_Sword)0x80) - goto overflow; - else - *(unsigned char *)loc = v; - break; - default: - pr_err("module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rela[i].r_info)); - return -ENOEXEC; - } - } - return 0; - overflow: - pr_err("module %s: relocation offset overflow: %08x\n", - me->name, rela[i].r_offset); - return -ENOEXEC; -} |