• David Howells's avatar
    Make most arch asm/module.h files use asm-generic/module.h · 786d35d4
    David Howells authored
    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: 's avatarDavid Howells <dhowells@redhat.com>
    Acked-by: 's avatarSam Ravnborg <sam@ravnborg.org>
    Signed-off-by: 's avatarRusty Russell <rusty@rustcorp.com.au>
    786d35d4
module.h 1.05 KB