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| author |   David Howells <dhowells@redhat.com> | 2012-09-28 14:31:03 +0930 |
|---|---|---|
| committer |   Rusty Russell <rusty@rustcorp.com.au> | 2012-09-28 14:31:03 +0930 |
| commit | 786d35d45cc40b2a51a18f73e14e135d47fdced7 (patch) | |
| tree | df18f4dc3f8a333267e74089760043769b3b6184 /include/asm-generic/module.h | |
| parent | MIPS: Fix module.c build for 32 bit (diff) | |
| download | linux-dev-786d35d45cc40b2a51a18f73e14e135d47fdced7.tar.xz linux-dev-786d35d45cc40b2a51a18f73e14e135d47fdced7.zip | |
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>
Diffstat (limited to 'include/asm-generic/module.h')
| -rw-r--r-- | include/asm-generic/module.h | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h index ed5b44de4c91..14dc41d185a7 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 */ |