/* * This file is subject to the terms and conditions of the GNU General Public * License.  See the file COPYING in the main directory of this archive * for more details. */ #include <linux/moduleloader.h>#include <linux/elf.h>#include <linux/vmalloc.h>#include <linux/fs.h>#include <linux/string.h>#include <linux/kernel.h> #if 0#define DEBUGP printk#else#define DEBUGP(fmt...)#endif #ifdef CONFIG_MODULES int apply_relocate(Elf32_Shdr *sechdrs,		   const char *strtab,		   unsigned int symindex,		   unsigned int relsec,		   struct module *me){	unsigned int i;	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;	Elf32_Sym *sym;	uint32_t *location; 	DEBUGP("Applying relocate section %u to %u\n", relsec,	       sechdrs[relsec].sh_info);	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {		/* This is where to make the change */		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr			+ rel[i].r_offset;		/* This is the symbol it is referring to.  Note that all		   undefined symbols have been resolved.  */		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr			+ ELF32_R_SYM(rel[i].r_info); 		switch (ELF32_R_TYPE(rel[i].r_info)) {		case R_68K_32:			/* We add the value into the location given */			*location += sym->st_value;			break;		case R_68K_PC32:			/* Add the value, subtract its position */			*location += sym->st_value - (uint32_t)location;			break;		default:			printk(KERN_ERR "module %s: Unknown relocation: %u\n",			       me->name, ELF32_R_TYPE(rel[i].r_info));			return -ENOEXEC;		}	}	return 0;} int apply_relocate_add(Elf32_Shdr *sechdrs,		       const char *strtab,		       unsigned int symindex,		       unsigned int relsec,		       struct module *me){	unsigned int i;	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;	Elf32_Sym *sym;	uint32_t *location; 	DEBUGP("Applying relocate_add section %u to %u\n", relsec,	       sechdrs[relsec].sh_info);	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {		/* This is where to make the change */		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr			+ rel[i].r_offset;		/* This is the symbol it is referring to.  Note that all		   undefined symbols have been resolved.  */		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr			+ ELF32_R_SYM(rel[i].r_info); 		switch (ELF32_R_TYPE(rel[i].r_info)) {		case R_68K_32:			/* We add the value into the location given */			*location = rel[i].r_addend + sym->st_value;			break;		case R_68K_PC32:			/* Add the value, subtract its position */			*location = rel[i].r_addend + sym->st_value - (uint32_t)location;			break;		default:			printk(KERN_ERR "module %s: Unknown relocation: %u\n",			       me->name, ELF32_R_TYPE(rel[i].r_info));			return -ENOEXEC;		}	}	return 0;} int module_finalize(const Elf_Ehdr *hdr,		    const Elf_Shdr *sechdrs,		    struct module *mod){	module_fixup(mod, mod->arch.fixup_start, mod->arch.fixup_end);	return 0;} #endif /* CONFIG_MODULES */ void module_fixup(struct module *mod, struct m68k_fixup_info *start,		  struct m68k_fixup_info *end){#ifdef CONFIG_MMU	struct m68k_fixup_info *fixup; 	for (fixup = start; fixup < end; fixup++) {		switch (fixup->type) {		case m68k_fixup_memoffset:			*(u32 *)fixup->addr = m68k_memoffset;			break;		case m68k_fixup_vnode_shift:			*(u16 *)fixup->addr += m68k_virt_to_node_shift;			break;		}	}#endif}