mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 15:26:21 +09:00
1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/* Kernel module help for powerpc.
|
|
Copyright (C) 2001, 2003 Rusty Russell IBM Corporation.
|
|
Copyright (C) 2008 Freescale Semiconductor, Inc.
|
|
|
|
*/
|
|
#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 <linux/uaccess.h>
|
|
#include <asm/firmware.h>
|
|
#include <linux/sort.h>
|
|
#include <asm/setup.h>
|
|
|
|
static 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 rc;
|
|
|
|
rc = module_finalize_ftrace(me, sechdrs);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* 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 /* CONFIG_PPC64 */
|
|
|
|
#ifdef PPC64_ELF_ABI_v1
|
|
sect = find_section(hdr, sechdrs, ".opd");
|
|
if (sect != NULL) {
|
|
me->arch.start_opd = sect->sh_addr;
|
|
me->arch.end_opd = sect->sh_addr + sect->sh_size;
|
|
}
|
|
#endif /* PPC64_ELF_ABI_v1 */
|
|
|
|
#ifdef CONFIG_PPC_BARRIER_NOSPEC
|
|
sect = find_section(hdr, sechdrs, "__spec_barrier_fixup");
|
|
if (sect != NULL)
|
|
do_barrier_nospec_fixups_range(barrier_nospec_enabled,
|
|
(void *)sect->sh_addr,
|
|
(void *)sect->sh_addr + sect->sh_size);
|
|
#endif /* CONFIG_PPC_BARRIER_NOSPEC */
|
|
|
|
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;
|
|
}
|