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arm64: module: move find_section to header 

Move it to the header so that the implementation can be shared
by the alternatives code.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220830104833.34636-2-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Joey Gouly 2022-08-30 11:48:31 +01:00 committed by Catalin Marinas
parent b90cb10531
commit b3adc3844e
2 changed files with 15 additions and 15 deletions
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15
arch/arm64/include/asm/module.h
View File

@ -65,4 +65,19 @@ static inline bool plt_entry_is_initialized(const struct plt_entry *e)
return e->adrp || e->add || e->br;
}
static inline const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
const char *name)
{
const Elf_Shdr *s, *se;
const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) {
if (strcmp(name, secstrs + s->sh_name) == 0)
return s;
}
return NULL;
}
#endif /* __ASM_MODULE_H */

15
arch/arm64/kernel/module.c
View File

@ -476,21 +476,6 @@ overflow:
return -ENOEXEC;
}
static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
const char *name)
{
const Elf_Shdr *s, *se;
const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) {
if (strcmp(name, secstrs + s->sh_name) == 0)
return s;
}
return NULL;
}
static inline void __init_plt(struct plt_entry *plt, unsigned long addr)
{
*plt = get_plt_entry(addr, plt);