/* Kernel module help for powerpc. Copyright (C) 2001, 2003 Rusty Russell IBM Corporation. Copyright (C) 2008 Freescale Semiconductor, Inc. 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/elf.h>#include <linux/moduleloader.h>#include <linux/err.h>#include <linux/vmalloc.h>#include <linux/bug.h>#include <asm/module.h>#include <asm/uaccess.h>#include <asm/firmware.h>#include <linux/sort.h>#include <asm/setup.h>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; /* 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, "__mmu_ftr_fixup"); if (sect != NULL) do_feature_fixups(cur_cpu_spec->mmu_features, (void *)sect->sh_addr, (void *)sect->sh_addr + sect->sh_size);#ifdef CONFIG_PPC64 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);#endif sect = find_section(hdr, sechdrs, "__lwsync_fixup"); if (sect != NULL) do_lwsync_fixups(cur_cpu_spec->cpu_features, (void *)sect->sh_addr, (void *)sect->sh_addr + sect->sh_size); return 0;}
/* Kernel module help for powerpc.
Copyright (C) 2001, 2003 Rusty Russell IBM Corporation.
Copyright (C) 2008 Freescale Semiconductor, Inc.
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/elf.h>
#include <linux/moduleloader.h>
#include <linux/err.h>
#include <linux/vmalloc.h>
#include <linux/bug.h>
#include <asm/module.h>
#include <asm/uaccess.h>
#include <asm/firmware.h>
#include <linux/sort.h>
#include <asm/setup.h>
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;
/* 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, "__mmu_ftr_fixup");
if (sect != NULL)
do_feature_fixups(cur_cpu_spec->mmu_features,
(void *)sect->sh_addr,
(void *)sect->sh_addr + sect->sh_size);
#ifdef CONFIG_PPC64
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);
#endif
sect = find_section(hdr, sechdrs, "__lwsync_fixup");
if (sect != NULL)
do_lwsync_fixups(cur_cpu_spec->cpu_features,
(void *)sect->sh_addr,
(void *)sect->sh_addr + sect->sh_size);
return 0;
}