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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 | 
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| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 | 
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/kernel/module.c | |
| download | olio-linux-3.10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz olio-linux-3.10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip  | |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/m68k/kernel/module.c')
| -rw-r--r-- | arch/m68k/kernel/module.c | 128 | 
1 files changed, 128 insertions, 0 deletions
diff --git a/arch/m68k/kernel/module.c b/arch/m68k/kernel/module.c new file mode 100644 index 00000000000..3b1a2ff61dd --- /dev/null +++ b/arch/m68k/kernel/module.c @@ -0,0 +1,128 @@ +#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 + +void *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; +} + +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 postition */ +			*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 postition */ +			*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 *me) +{ +	return 0; +} + +void module_arch_cleanup(struct module *mod) +{ +}  |