mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
786d35d45c
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>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#ifndef __ASM_GENERIC_MODULE_H
|
|
#define __ASM_GENERIC_MODULE_H
|
|
|
|
/*
|
|
* 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_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 */
|