/*  Kernel module help for SH.    This program is free software; you can redistribute it and/or modify    it under the terms of the GNU General Public License as published by    the Free Software Foundation; either version 2 of the License, or    (at your option) any later version.    This program is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    GNU General Public License for more details.    You should have received a copy of the GNU General Public License    along with this program; if not, write to the Free Software    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#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...)#endifvoid *module_alloc(unsigned long size){	if (size == 0)		return NULL;	return vmalloc(size);}/* Free memory returned from module_alloc */void module_free(struct module *mod, void *module_region){	vfree(module_region);	/* FIXME: If module_region == mod->init_region, trim exception           table entries. */}/* We don't need anything special. */int module_frob_arch_sections(Elf_Ehdr *hdr,			      Elf_Shdr *sechdrs,			      char *secstrings,			      struct module *mod){	return 0;}#define COPY_UNALIGNED_WORD(sw, tw, align) \{ \	void *__s = &(sw), *__t = &(tw); \	unsigned short *__s2 = __s, *__t2 = __t; \	unsigned char *__s1 = __s, *__t1 = __t; \	switch ((align)) \	{ \	case 0: \		*(unsigned long *) __t = *(unsigned long *) __s; \		break; \	case 2: \		*__t2++ = *__s2++; \		*__t2 = *__s2; \		break; \	default: \		*__t1++ = *__s1++; \		*__t1++ = *__s1++; \		*__t1++ = *__s1++; \		*__t1 = *__s1; \		break; \	} \}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;	Elf32_Addr relocation;	uint32_t *location;	uint32_t value;	int align;	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);		relocation = sym->st_value + rel[i].r_addend;		align = (int)location & 3;		switch (ELF32_R_TYPE(rel[i].r_info)) {		case R_SH_DIR32:	    		COPY_UNALIGNED_WORD (*location, value, align);			value += relocation;	    		COPY_UNALIGNED_WORD (value, *location, align);			break;		case R_SH_REL32:	  		relocation = (relocation - (Elf32_Addr) location);	    		COPY_UNALIGNED_WORD (*location, value, align);			value += relocation;	    		COPY_UNALIGNED_WORD (value, *location, align);			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(Elf32_Shdr *sechdrs,		       const char *strtab,		       unsigned int symindex,		       unsigned int relsec,		       struct module *me){	printk(KERN_ERR "module %s: REL RELOCATION unsupported\n",	       me->name);	return -ENOEXEC;}int module_finalize(const Elf_Ehdr *hdr,		    const Elf_Shdr *sechdrs,		    struct module *me){	return 0;}void module_arch_cleanup(struct module *mod){}