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>
diff --git a/arch/Kconfig b/arch/Kconfig
index 72f2fa1..3450115 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -281,4 +281,23 @@
See Documentation/prctl/seccomp_filter.txt for details.
+config HAVE_MOD_ARCH_SPECIFIC
+ bool
+ help
+ The arch uses struct mod_arch_specific to store data. Many arches
+ just need a simple module loader without arch specific data - those
+ should not enable this.
+
+config MODULES_USE_ELF_RELA
+ bool
+ help
+ Modules only use ELF RELA relocations. Modules with ELF REL
+ relocations will give an error.
+
+config MODULES_USE_ELF_REL
+ bool
+ help
+ Modules only use ELF REL relocations. Modules with ELF RELA
+ relocations will give an error.
+
source "kernel/gcov/Kconfig"
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 9944ded..7e3710c 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -20,6 +20,8 @@
select GENERIC_CMOS_UPDATE
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
diff --git a/arch/alpha/include/asm/module.h b/arch/alpha/include/asm/module.h
index 7b63743..9cd13b5 100644
--- a/arch/alpha/include/asm/module.h
+++ b/arch/alpha/include/asm/module.h
@@ -1,19 +1,13 @@
#ifndef _ALPHA_MODULE_H
#define _ALPHA_MODULE_H
+#include <asm-generic/module.h>
+
struct mod_arch_specific
{
unsigned int gotsecindex;
};
-#define Elf_Sym Elf64_Sym
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Ehdr Elf64_Ehdr
-#define Elf_Phdr Elf64_Phdr
-#define Elf_Dyn Elf64_Dyn
-#define Elf_Rel Elf64_Rel
-#define Elf_Rela Elf64_Rela
-
#define ARCH_SHF_SMALL SHF_ALPHA_GPREL
#ifdef MODULE
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2f88d8d..7a08b3a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -49,6 +49,8 @@
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
+ select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
+ select MODULES_USE_ELF_REL
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h
index 6c6809f..0d3a28d 100644
--- a/arch/arm/include/asm/module.h
+++ b/arch/arm/include/asm/module.h
@@ -1,9 +1,7 @@
#ifndef _ASM_ARM_MODULE_H
#define _ASM_ARM_MODULE_H
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#include <asm-generic/module.h>
struct unwind_table;
@@ -16,13 +14,11 @@
ARM_SEC_DEVEXIT,
ARM_SEC_MAX,
};
-#endif
struct mod_arch_specific {
-#ifdef CONFIG_ARM_UNWIND
struct unwind_table *unwind[ARM_SEC_MAX];
-#endif
};
+#endif
/*
* Add the ARM architecture version to the version magic string
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 5ade51c..06e73bf 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -15,6 +15,8 @@
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
help
AVR32 is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
diff --git a/arch/avr32/include/asm/module.h b/arch/avr32/include/asm/module.h
index 4514445..3f083d3 100644
--- a/arch/avr32/include/asm/module.h
+++ b/arch/avr32/include/asm/module.h
@@ -1,6 +1,8 @@
#ifndef __ASM_AVR32_MODULE_H
#define __ASM_AVR32_MODULE_H
+#include <asm-generic/module.h>
+
struct mod_arch_syminfo {
unsigned long got_offset;
int got_initialized;
@@ -17,10 +19,6 @@
struct mod_arch_syminfo *syminfo;
};
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
#define MODULE_PROC_FAMILY "AVR32v1"
#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index c7092e6..8e82e26 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -42,6 +42,8 @@
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
select GENERIC_SMP_IDLE_THREAD
select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
config GENERIC_CSUM
def_bool y
diff --git a/arch/blackfin/include/asm/module.h b/arch/blackfin/include/asm/module.h
index ed5689b..231a149 100644
--- a/arch/blackfin/include/asm/module.h
+++ b/arch/blackfin/include/asm/module.h
@@ -7,9 +7,7 @@
#ifndef _ASM_BFIN_MODULE_H
#define _ASM_BFIN_MODULE_H
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#include <asm-generic/module.h>
struct mod_arch_specific {
Elf_Shdr *text_l1;
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 983c859..f6a3648 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -17,6 +17,7 @@
select OF
select OF_EARLY_FLATTREE
select GENERIC_CLOCKEVENTS
+ select MODULES_USE_ELF_RELA
config MMU
def_bool n
diff --git a/arch/c6x/include/asm/module.h b/arch/c6x/include/asm/module.h
index a453f97..5c7269c 100644
--- a/arch/c6x/include/asm/module.h
+++ b/arch/c6x/include/asm/module.h
@@ -13,17 +13,7 @@
#ifndef _ASM_C6X_MODULE_H
#define _ASM_C6X_MODULE_H
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-#define Elf_Addr Elf32_Addr
-#define Elf_Word Elf32_Word
-
-/*
- * This file contains the C6x architecture specific module code.
- */
-struct mod_arch_specific {
-};
+#include <asm-generic/module.h>
struct loaded_sections {
unsigned int new_vaddr;
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index e922154..7bb8cf9 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -47,6 +47,7 @@
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
select GENERIC_CMOS_UPDATE
+ select MODULES_USE_ELF_RELA
config HZ
int
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index 04d02a5..28b690d 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -7,3 +7,5 @@
header-y += etraxgpio.h
header-y += rs485.h
header-y += sync_serial.h
+
+generic-y += module.h
diff --git a/arch/cris/include/asm/module.h b/arch/cris/include/asm/module.h
deleted file mode 100644
index 7ee7231..0000000
--- a/arch/cris/include/asm/module.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ASM_CRIS_MODULE_H
-#define _ASM_CRIS_MODULE_H
-/* cris is simple */
-struct mod_arch_specific { };
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-#endif /* _ASM_CRIS_MODULE_H */
diff --git a/arch/frv/include/asm/module.h b/arch/frv/include/asm/module.h
index 3d5c636..a8848f0 100644
--- a/arch/frv/include/asm/module.h
+++ b/arch/frv/include/asm/module.h
@@ -11,13 +11,7 @@
#ifndef _ASM_MODULE_H
#define _ASM_MODULE_H
-struct mod_arch_specific
-{
-};
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#include <asm-generic/module.h>
/*
* Include the architecture version.
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 5e8a0d9..c149d3b29 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -6,6 +6,7 @@
select ARCH_WANT_IPC_PARSE_VERSION
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
+ select MODULES_USE_ELF_RELA
config SYMBOL_PREFIX
string
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index c68e168..871382d 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -1 +1,3 @@
include include/asm-generic/Kbuild.asm
+
+generic-y += module.h
diff --git a/arch/h8300/include/asm/module.h b/arch/h8300/include/asm/module.h
deleted file mode 100644
index 8e46724..0000000
--- a/arch/h8300/include/asm/module.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_H8300_MODULE_H
-#define _ASM_H8300_MODULE_H
-/*
- * This file contains the H8/300 architecture specific module code.
- */
-struct mod_arch_specific { };
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
-#endif /* _ASM_H8/300_MODULE_H */
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index b2fdfb70..0744f7d 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -30,6 +30,7 @@
select KTIME_SCALAR
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST
+ select MODULES_USE_ELF_RELA
---help---
Qualcomm Hexagon is a processor architecture designed for high
performance and low power across a wide variety of applications.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 310cf57..6881464 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -39,6 +39,8 @@
select ARCH_THREAD_INFO_ALLOCATOR
select ARCH_CLOCKSOURCE_DATA
select GENERIC_TIME_VSYSCALL
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
diff --git a/arch/ia64/include/asm/module.h b/arch/ia64/include/asm/module.h
index 908eaef..dfba22a 100644
--- a/arch/ia64/include/asm/module.h
+++ b/arch/ia64/include/asm/module.h
@@ -1,6 +1,8 @@
#ifndef _ASM_IA64_MODULE_H
#define _ASM_IA64_MODULE_H
+#include <asm-generic/module.h>
+
/*
* IA-64-specific support for kernel module loader.
*
@@ -29,10 +31,6 @@
unsigned int next_got_entry; /* index of next available got entry */
};
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Sym Elf64_Sym
-#define Elf_Ehdr Elf64_Ehdr
-
#define MODULE_PROC_FAMILY "ia64"
#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY \
"gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__)
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 49498bb..fc61533 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -13,6 +13,7 @@
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
select ARCH_USES_GETTIMEOFFSET
+ select MODULES_USE_ELF_RELA
config SBUS
bool
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index c68e168..871382d 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -1 +1,3 @@
include include/asm-generic/Kbuild.asm
+
+generic-y += module.h
diff --git a/arch/m32r/include/asm/module.h b/arch/m32r/include/asm/module.h
deleted file mode 100644
index eb73ee0..0000000
--- a/arch/m32r/include/asm/module.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_M32R_MODULE_H
-#define _ASM_M32R_MODULE_H
-
-struct mod_arch_specific { };
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
-#endif /* _ASM_M32R_MODULE_H */
diff --git a/arch/m32r/kernel/module.c b/arch/m32r/kernel/module.c
index 3071fe8..38233b6 100644
--- a/arch/m32r/kernel/module.c
+++ b/arch/m32r/kernel/module.c
@@ -201,18 +201,3 @@
}
return 0;
}
-
-int apply_relocate(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
-#if 0
- printk(KERN_ERR "module %s: REL RELOCATION unsupported\n",
- me->name);
- return -ENOEXEC;
-#endif
- return 0;
-
-}
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index b22df94..0df07ce 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -13,6 +13,9 @@
select FPU if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_REL
+ select MODULES_USE_ELF_RELA
config RWSEM_GENERIC_SPINLOCK
bool
diff --git a/arch/m68k/include/asm/module.h b/arch/m68k/include/asm/module.h
index edffe66..8b58fce 100644
--- a/arch/m68k/include/asm/module.h
+++ b/arch/m68k/include/asm/module.h
@@ -1,6 +1,8 @@
#ifndef _ASM_M68K_MODULE_H
#define _ASM_M68K_MODULE_H
+#include <asm-generic/module.h>
+
enum m68k_fixup_type {
m68k_fixup_memoffset,
m68k_fixup_vnode_shift,
@@ -36,8 +38,4 @@
extern void module_fixup(struct module *mod, struct m68k_fixup_info *start,
struct m68k_fixup_info *end);
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-
#endif /* _ASM_M68K_MODULE_H */
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index ab9afca..b4f409f 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -24,6 +24,7 @@
select GENERIC_CPU_DEVICES
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
+ select MODULES_USE_ELF_RELA
config SWAP
def_bool n
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index faf6528..dccdfcd 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -36,6 +36,9 @@
select BUILDTIME_EXTABLE_SORT
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_REL
+ select MODULES_USE_ELF_RELA if 64BIT
menu "Machine selection"
diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h
index dca8bce..26137da 100644
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -35,11 +35,14 @@
} Elf64_Mips_Rela;
#ifdef CONFIG_32BIT
-
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr
#define Elf_Addr Elf32_Addr
+#define Elf_Rel Elf32_Rel
+#define Elf_Rela Elf32_Rela
+#define ELF_R_TYPE(X) ELF32_R_TYPE(X)
+#define ELF_R_SYM(X) ELF32_R_SYM(X)
#define Elf_Mips_Rel Elf32_Rel
#define Elf_Mips_Rela Elf32_Rela
@@ -50,11 +53,14 @@
#endif
#ifdef CONFIG_64BIT
-
#define Elf_Shdr Elf64_Shdr
#define Elf_Sym Elf64_Sym
#define Elf_Ehdr Elf64_Ehdr
#define Elf_Addr Elf64_Addr
+#define Elf_Rel Elf64_Rel
+#define Elf_Rela Elf64_Rela
+#define ELF_R_TYPE(X) ELF64_R_TYPE(X)
+#define ELF_R_SYM(X) ELF64_R_SYM(X)
#define Elf_Mips_Rel Elf64_Mips_Rel
#define Elf_Mips_Rela Elf64_Mips_Rela
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index e2c1499..cd1e6c2 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -31,7 +31,7 @@
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_MODULES) += mips_ksyms.o module.o
-obj-$(CONFIG_MODULES) += module-rela.o
+obj-$(CONFIG_MODULES_USE_ELF_RELA) += module-rela.o
obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 5cfb086..aa03f2e 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -8,6 +8,7 @@
select HAVE_ARCH_KGDB
select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
select GENERIC_CLOCKEVENTS
+ select MODULES_USE_ELF_RELA
config AM33_2
def_bool n
diff --git a/arch/mn10300/include/asm/module.h b/arch/mn10300/include/asm/module.h
index 5d7057d..6571103 100644
--- a/arch/mn10300/include/asm/module.h
+++ b/arch/mn10300/include/asm/module.h
@@ -12,12 +12,7 @@
#ifndef _ASM_MODULE_H
#define _ASM_MODULE_H
-struct mod_arch_specific {
-};
-
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#include <asm-generic/module.h>
/*
* Include the MN10300 architecture version.
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 49765b5..05f2ba4 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -21,6 +21,7 @@
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select MODULES_USE_ELF_RELA
config MMU
def_bool y
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 3ff21b53..166d991 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -19,6 +19,8 @@
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index 1f41234..bab37e9 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -1,21 +1,11 @@
#ifndef _ASM_PARISC_MODULE_H
#define _ASM_PARISC_MODULE_H
+
+#include <asm-generic/module.h>
+
/*
* This file contains the parisc architecture specific module code.
*/
-#ifdef CONFIG_64BIT
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Sym Elf64_Sym
-#define Elf_Ehdr Elf64_Ehdr
-#define Elf_Addr Elf64_Addr
-#define Elf_Rela Elf64_Rela
-#else
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
-#define Elf_Addr Elf32_Addr
-#define Elf_Rela Elf32_Rela
-#endif
struct unwind_table;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 352f416..74f8478 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -139,6 +139,8 @@
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
config EARLY_PRINTK
bool
diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h
index 0192a4e..c1df590 100644
--- a/arch/powerpc/include/asm/module.h
+++ b/arch/powerpc/include/asm/module.h
@@ -11,6 +11,7 @@
#include <linux/list.h>
#include <asm/bug.h>
+#include <asm-generic/module.h>
#ifndef __powerpc64__
@@ -60,16 +61,10 @@
*/
#ifdef __powerpc64__
-# define Elf_Shdr Elf64_Shdr
-# define Elf_Sym Elf64_Sym
-# define Elf_Ehdr Elf64_Ehdr
# ifdef MODULE
asm(".section .stubs,\"ax\",@nobits; .align 3; .previous");
# endif
#else
-# define Elf_Shdr Elf32_Shdr
-# define Elf_Sym Elf32_Sym
-# define Elf_Ehdr Elf32_Ehdr
# ifdef MODULE
asm(".section .plt,\"ax\",@nobits; .align 3; .previous");
asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous");
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 107610e..c76a052 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -125,6 +125,8 @@
select GENERIC_CLOCKEVENTS
select KTIME_SCALAR if 32BIT
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_MOD_ARCH_SPECIFIC
+ select MODULES_USE_ELF_RELA
config SCHED_OMIT_FRAME_POINTER
def_bool y
diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h
index f0b6b26..df1f861 100644
--- a/arch/s390/include/asm/module.h
+++ b/arch/s390/include/asm/module.h
@@ -1,5 +1,8 @@
#ifndef _ASM_S390_MODULE_H
#define _ASM_S390_MODULE_H
+
+#include <asm-generic/module.h>
+
/*
* This file contains the s390 architecture specific module code.
*/
@@ -28,19 +31,4 @@
struct mod_arch_syminfo *syminfo;
};
-#ifdef CONFIG_64BIT
-#define ElfW(x) Elf64_ ## x
-#define ELFW(x) ELF64_ ## x
-#else
-#define ElfW(x) Elf32_ ## x
-#define ELFW(x) ELF32_ ## x
-#endif
-
-#define Elf_Addr ElfW(Addr)
-#define Elf_Rela ElfW(Rela)
-#define Elf_Shdr ElfW(Shdr)
-#define Elf_Sym ElfW(Sym)
-#define Elf_Ehdr ElfW(Ehdr)
-#define ELF_R_SYM ELFW(R_SYM)
-#define ELF_R_TYPE ELFW(R_TYPE)
#endif /* _ASM_S390_MODULE_H */
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index ba0f412..e2c8db4 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -10,6 +10,8 @@
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 f0b5dc0..abf395b 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 @@
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 469e3b6..1378d99b 100644
--- a/arch/score/kernel/module.c
+++ b/arch/score/kernel/module.c
@@ -125,16 +125,6 @@
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)
{
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 36f5141..656329a 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -35,6 +35,8 @@
select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
+ select MODULES_USE_ELF_RELA
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
diff --git a/arch/sh/include/asm/module.h b/arch/sh/include/asm/module.h
index b7927de..81300d8b 100644
--- a/arch/sh/include/asm/module.h
+++ b/arch/sh/include/asm/module.h
@@ -1,21 +1,13 @@
#ifndef _ASM_SH_MODULE_H
#define _ASM_SH_MODULE_H
-struct mod_arch_specific {
+#include <asm-generic/module.h>
+
#ifdef CONFIG_DWARF_UNWINDER
+struct mod_arch_specific {
struct list_head fde_list;
struct list_head cie_list;
-#endif
};
-
-#ifdef CONFIG_64BIT
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Sym Elf64_Sym
-#define Elf_Ehdr Elf64_Ehdr
-#else
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
#endif
#ifdef CONFIG_CPU_LITTLE_ENDIAN
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 67f1f6f..a244e70 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -37,6 +37,7 @@
select GENERIC_CLOCKEVENTS
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select MODULES_USE_ELF_RELA
config SPARC32
def_bool !64BIT
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 67f83e0..fbe1cb5 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -21,4 +21,5 @@
generic-y += local64.h
generic-y += irq_regs.h
generic-y += local.h
+generic-y += module.h
generic-y += word-at-a-time.h
diff --git a/arch/sparc/include/asm/module.h b/arch/sparc/include/asm/module.h
deleted file mode 100644
index ff8e02d..0000000
--- a/arch/sparc/include/asm/module.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef __SPARC_MODULE_H
-#define __SPARC_MODULE_H
-struct mod_arch_specific { };
-
-/*
- * Use some preprocessor magic to define the correct symbol
- * for sparc32 and sparc64.
- * Elf_Addr becomes Elf32_Addr for sparc32 and Elf64_Addr for sparc64
- */
-#define ___ELF(a, b, c) a##b##c
-#define __ELF(a, b, c) ___ELF(a, b, c)
-#define _Elf(t) __ELF(Elf, CONFIG_BITS, t)
-#define _ELF(t) __ELF(ELF, CONFIG_BITS, t)
-
-#define Elf_Shdr _Elf(_Shdr)
-#define Elf_Sym _Elf(_Sym)
-#define Elf_Ehdr _Elf(_Ehdr)
-#define Elf_Rela _Elf(_Rela)
-#define Elf_Addr _Elf(_Addr)
-
-#define ELF_R_SYM _ELF(_R_SYM)
-#define ELF_R_TYPE _ELF(_R_TYPE)
-
-#endif /* __SPARC_MODULE_H */
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 932e443..1603f30 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -17,6 +17,7 @@
select SYS_HYPERVISOR
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
+ select MODULES_USE_ELF_RELA
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index b0a4743..5ef0814 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -14,6 +14,7 @@
select GENERIC_IRQ_SHOW
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
+ select MODULES_USE_ELF_REL
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8ec3a1a..01726cb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -97,6 +97,8 @@
select KTIME_SCALAR if X86_32
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select MODULES_USE_ELF_REL if X86_32
+ select MODULES_USE_ELF_RELA if X86_64
config INSTRUCTION_DECODER
def_bool (KPROBES || PERF_EVENTS || UPROBES)
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 9926e11..a4b0c10 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -21,9 +21,11 @@
config X86_32
def_bool !64BIT
select HAVE_AOUT
+ select MODULES_USE_ELF_REL
config X86_64
def_bool 64BIT
+ select MODULES_USE_ELF_RELA
config RWSEM_XCHGADD_ALGORITHM
def_bool X86_XADD && 64BIT
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 8ed64cf..4816e440 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -11,6 +11,7 @@
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
+ select MODULES_USE_ELF_RELA
help
Xtensa processors are 32-bit RISC machines designed by Tensilica
primarily for embedded systems. These processors are both
diff --git a/arch/xtensa/include/asm/module.h b/arch/xtensa/include/asm/module.h
index d9b34be..488b40c 100644
--- a/arch/xtensa/include/asm/module.h
+++ b/arch/xtensa/include/asm/module.h
@@ -13,15 +13,8 @@
#ifndef _XTENSA_MODULE_H
#define _XTENSA_MODULE_H
-struct mod_arch_specific
-{
- /* No special elements, yet. */
-};
-
#define MODULE_ARCH_VERMAGIC "xtensa-" __stringify(XCHAL_CORE_ID) " "
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#include <asm-generic/module.h>
#endif /* _XTENSA_MODULE_H */
diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h
index ed5b44d..14dc41d 100644
--- a/include/asm-generic/module.h
+++ b/include/asm-generic/module.h
@@ -5,18 +5,44 @@
* Many architectures just need a simple module
* loader without arch specific data.
*/
+#ifndef CONFIG_HAVE_MOD_ARCH_SPECIFIC
struct mod_arch_specific
{
};
+#endif
#ifdef CONFIG_64BIT
-#define Elf_Shdr Elf64_Shdr
-#define Elf_Sym Elf64_Sym
-#define Elf_Ehdr Elf64_Ehdr
-#else
-#define Elf_Shdr Elf32_Shdr
-#define Elf_Sym Elf32_Sym
-#define Elf_Ehdr Elf32_Ehdr
+#define Elf_Shdr Elf64_Shdr
+#define Elf_Phdr Elf64_Phdr
+#define Elf_Sym Elf64_Sym
+#define Elf_Dyn Elf64_Dyn
+#define Elf_Ehdr Elf64_Ehdr
+#define Elf_Addr Elf64_Addr
+#ifdef CONFIG_MODULES_USE_ELF_REL
+#define Elf_Rel Elf64_Rel
+#endif
+#ifdef CONFIG_MODULES_USE_ELF_RELA
+#define Elf_Rela Elf64_Rela
+#endif
+#define ELF_R_TYPE(X) ELF64_R_TYPE(X)
+#define ELF_R_SYM(X) ELF64_R_SYM(X)
+
+#else /* CONFIG_64BIT */
+
+#define Elf_Shdr Elf32_Shdr
+#define Elf_Phdr Elf32_Phdr
+#define Elf_Sym Elf32_Sym
+#define Elf_Dyn Elf32_Dyn
+#define Elf_Ehdr Elf32_Ehdr
+#define Elf_Addr Elf32_Addr
+#ifdef CONFIG_MODULES_USE_ELF_REL
+#define Elf_Rel Elf32_Rel
+#endif
+#ifdef CONFIG_MODULES_USE_ELF_RELA
+#define Elf_Rela Elf32_Rela
+#endif
+#define ELF_R_TYPE(X) ELF32_R_TYPE(X)
+#define ELF_R_SYM(X) ELF32_R_SYM(X)
#endif
#endif /* __ASM_GENERIC_MODULE_H */
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index b2be02e..560ca53 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -28,21 +28,49 @@
/* Free memory returned from module_alloc. */
void module_free(struct module *mod, void *module_region);
-/* Apply the given relocation to the (simplified) ELF. Return -error
- or 0. */
+/*
+ * Apply the given relocation to the (simplified) ELF. Return -error
+ * or 0.
+ */
+#ifdef CONFIG_MODULES_USE_ELF_REL
int apply_relocate(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *mod);
+#else
+static inline int apply_relocate(Elf_Shdr *sechdrs,
+ const char *strtab,
+ unsigned int symindex,
+ unsigned int relsec,
+ struct module *me)
+{
+ printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
+ return -ENOEXEC;
+}
+#endif
-/* Apply the given add relocation to the (simplified) ELF. Return
- -error or 0 */
+/*
+ * Apply the given add relocation to the (simplified) ELF. Return
+ * -error or 0
+ */
+#ifdef CONFIG_MODULES_USE_ELF_RELA
int apply_relocate_add(Elf_Shdr *sechdrs,
const char *strtab,
unsigned int symindex,
unsigned int relsec,
struct module *mod);
+#else
+static inline int apply_relocate_add(Elf_Shdr *sechdrs,
+ const char *strtab,
+ unsigned int symindex,
+ unsigned int relsec,
+ struct module *me)
+{
+ printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
+ return -ENOEXEC;
+}
+#endif
/* Any final processing of module before access. Return -error or 0. */
int module_finalize(const Elf_Ehdr *hdr,
diff --git a/kernel/module.c b/kernel/module.c
index 9ad9ee9..7f2ee45f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1949,26 +1949,6 @@
return ret;
}
-int __weak apply_relocate(Elf_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- pr_err("module %s: REL relocation unsupported\n", me->name);
- return -ENOEXEC;
-}
-
-int __weak apply_relocate_add(Elf_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- pr_err("module %s: RELA relocation unsupported\n", me->name);
- return -ENOEXEC;
-}
-
static int apply_relocations(struct module *mod, const struct load_info *info)
{
unsigned int i;