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#include <linux/moduleloader.h>
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#include <linux/vmalloc.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#define DEBUGP(fmt...)
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void *module_alloc(unsigned long size)
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/* Free memory returned from module_alloc */
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void module_free(struct module *mod, void *module_region)
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/* We don't need anything special. */
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int module_frob_arch_sections(Elf_Ehdr *hdr,
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int apply_relocate(Elf32_Shdr *sechdrs,
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unsigned int symindex,
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Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
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DEBUGP("Applying relocate section %u to %u\n", relsec,
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sechdrs[relsec].sh_info);
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for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
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/* This is where to make the change */
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location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
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/* This is the symbol it is referring to. Note that all
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undefined symbols have been resolved. */
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sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
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+ ELF32_R_SYM(rel[i].r_info);
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switch (ELF32_R_TYPE(rel[i].r_info)) {
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/* We add the value into the location given */
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*location += sym->st_value;
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/* Add the value, subtract its postition */
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*location += sym->st_value - (uint32_t)location;
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printk(KERN_ERR "module %s: Unknown relocation: %u\n",
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me->name, ELF32_R_TYPE(rel[i].r_info));
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int apply_relocate_add(Elf32_Shdr *sechdrs,
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unsigned int symindex,
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Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
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DEBUGP("Applying relocate_add section %u to %u\n", relsec,
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sechdrs[relsec].sh_info);
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for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
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/* This is where to make the change */
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location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
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/* This is the symbol it is referring to. Note that all
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undefined symbols have been resolved. */
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sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
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+ ELF32_R_SYM(rel[i].r_info);
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switch (ELF32_R_TYPE(rel[i].r_info)) {
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/* We add the value into the location given */
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*location = rel[i].r_addend + sym->st_value;
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/* Add the value, subtract its postition */
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*location = rel[i].r_addend + sym->st_value - (uint32_t)location;
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printk(KERN_ERR "module %s: Unknown relocation: %u\n",
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me->name, ELF32_R_TYPE(rel[i].r_info));
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int module_finalize(const Elf_Ehdr *hdr,
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const Elf_Shdr *sechdrs,
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void module_arch_cleanup(struct module *mod)