From 786d35d45cc40b2a51a18f73e14e135d47fdced7 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 28 Sep 2012 14:31:03 +0930
Subject: Make most arch asm/module.h files use asm-generic/module.h
Use the mapping of Elf_[SPE]hdr, Elf_Addr, Elf_Sym, Elf_Dyn, Elf_Rel/Rela,
ELF_R_TYPE() and ELF_R_SYM() to either the 32-bit version or the 64-bit version
into asm-generic/module.h for all arches bar MIPS.
Also, use the generic definition mod_arch_specific where possible.
To this end, I've defined three new config bools:
(*) HAVE_MOD_ARCH_SPECIFIC
Arches define this if they don't want to use the empty generic
mod_arch_specific struct.
(*) MODULES_USE_ELF_RELA
Arches define this if their modules can contain RELA records. This causes
the Elf_Rela mapping to be emitted and allows apply_relocate_add() to be
defined by the arch rather than have the core emit an error message.
(*) MODULES_USE_ELF_REL
Arches define this if their modules can contain REL records. This causes
the Elf_Rel mapping to be emitted and allows apply_relocate() to be
defined by the arch rather than have the core emit an error message.
Note that it is possible to allow both REL and RELA records: m68k and mips are
two arches that do this.
With this, some arch asm/module.h files can be deleted entirely and replaced
with a generic-y marker in the arch Kbuild file.
Additionally, I have removed the bits from m32r and score that handle the
unsupported type of relocation record as that's now handled centrally.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
arch/score/Kconfig | 2 ++
arch/score/include/asm/module.h | 6 +-----
arch/score/kernel/module.c | 10 ----------
3 files changed, 3 insertions(+), 15 deletions(-)
(limited to 'arch/score')
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index ba0f412920be..e2c8db4533dc 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -10,6 +10,8 @@ config SCORE
select ARCH_DISCARD_MEMBLOCK
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_REL
choice
prompt "System type"
diff --git a/arch/score/include/asm/module.h b/arch/score/include/asm/module.h
index f0b5dc0bd023..abf395bbfaba 100644
--- a/arch/score/include/asm/module.h
+++ b/arch/score/include/asm/module.h
@@ -3,6 +3,7 @@
#include <linux/list.h>
#include <asm/uaccess.h>
+#include <asm-generic/module.h>
struct mod_arch_specific {
/* Data Bus Error exception tables */
@@ -13,11 +14,6 @@ struct mod_arch_specific {
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-#define Elf_Addr Elf32_Addr
-
/* Given an address, look for it in the exception tables. */
#ifdef CONFIG_MODULES
const struct exception_table_entry *search_module_dbetables(unsigned long addr);
diff --git a/arch/score/kernel/module.c b/arch/score/kernel/module.c
index 469e3b64e2f2..1378d99baa3d 100644
--- a/arch/score/kernel/module.c
+++ b/arch/score/kernel/module.c
@@ -125,16 +125,6 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
return 0;
}
-int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *me)
-{
- /* Non-standard return value... most other arch's return -ENOEXEC
- * for an unsupported relocation variant
- */
- return 0;
-}
-
/* Given an address, look for it in the module exception tables. */
const struct exception_table_entry *search_module_dbetables(unsigned long addr)
{
--
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