forked from Minki/linux
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>
42 lines
808 B
C
42 lines
808 B
C
#ifndef _ASM_M68K_MODULE_H
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#define _ASM_M68K_MODULE_H
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#include <asm-generic/module.h>
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enum m68k_fixup_type {
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m68k_fixup_memoffset,
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m68k_fixup_vnode_shift,
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};
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struct m68k_fixup_info {
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enum m68k_fixup_type type;
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void *addr;
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};
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struct mod_arch_specific {
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struct m68k_fixup_info *fixup_start, *fixup_end;
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};
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#ifdef CONFIG_MMU
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#define MODULE_ARCH_INIT { \
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.fixup_start = __start_fixup, \
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.fixup_end = __stop_fixup, \
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}
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#define m68k_fixup(type, addr) \
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" .section \".m68k_fixup\",\"aw\"\n" \
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" .long " #type "," #addr "\n" \
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" .previous\n"
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#endif /* CONFIG_MMU */
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extern struct m68k_fixup_info __start_fixup[], __stop_fixup[];
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struct module;
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extern void module_fixup(struct module *mod, struct m68k_fixup_info *start,
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struct m68k_fixup_info *end);
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#endif /* _ASM_M68K_MODULE_H */
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