#include <linux/vmalloc.h>
#include <linux/bug.h>
#include <asm/module.h>
-#include <asm/uaccess.h>
#include <asm/firmware.h>
+#include <asm/code-patching.h>
#include <linux/sort.h>
#include "setup.h"
#define DEBUGP(fmt , ...)
#endif
-/* There's actually a third entry here, but it's unused */
-struct ppc64_opd_entry
-{
- unsigned long funcaddr;
- unsigned long r2;
-};
-
/* Like PPC32, we need little trampolines to do > 24-bit jumps (into
the kernel itself). But on PPC64, these need to be used for every
jump, actually, to reset r2 (TOC+0x8000). */
return _count_relocs;
}
-void *module_alloc(unsigned long size)
-{
- if (size == 0)
- return NULL;
-
- return vmalloc_exec(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. */
-}
-
static int relacmp(const void *_x, const void *_y)
{
const Elf64_Rela *x, *y;
restore r2. */
static int restore_r2(u32 *instruction, struct module *me)
{
- if (*instruction != 0x60000000) {
+ if (*instruction != PPC_NOP_INSTR) {
printk("%s: Expect noop after relocate, got %08x\n",
me->name, *instruction);
return 0;
return 0;
}
-
-LIST_HEAD(module_bug_list);
-
-static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
- const Elf_Shdr *sechdrs,
- const char *name)
-{
- char *secstrings;
- unsigned int i;
-
- secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
- for (i = 1; i < hdr->e_shnum; i++)
- if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
- return &sechdrs[i];
- return NULL;
-}
-
-int module_finalize(const Elf_Ehdr *hdr,
- const Elf_Shdr *sechdrs, struct module *me)
-{
- const Elf_Shdr *sect;
- int err;
-
- err = module_bug_finalize(hdr, sechdrs, me);
- if (err)
- return err;
-
- /* Apply feature fixups */
- sect = find_section(hdr, sechdrs, "__ftr_fixup");
- if (sect != NULL)
- do_feature_fixups(cur_cpu_spec->cpu_features,
- (void *)sect->sh_addr,
- (void *)sect->sh_addr + sect->sh_size);
-
- sect = find_section(hdr, sechdrs, "__fw_ftr_fixup");
- if (sect != NULL)
- do_feature_fixups(powerpc_firmware_features,
- (void *)sect->sh_addr,
- (void *)sect->sh_addr + sect->sh_size);
-
- return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
- module_bug_cleanup(mod);
-}
-
-struct bug_entry *module_find_bug(unsigned long bugaddr)
-{
- struct mod_arch_specific *mod;
- unsigned int i;
- struct bug_entry *bug;
-
- list_for_each_entry(mod, &module_bug_list, bug_list) {
- bug = mod->bug_table;
- for (i = 0; i < mod->num_bugs; ++i, ++bug)
- if (bugaddr == bug->bug_addr)
- return bug;
- }
- return NULL;
-}