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elfcore: Replace CONFIG_{IA64, UML} checks with a new option

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As arm64 is about to introduce MTE-specific phdrs in the core dump, add
a common CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS option currently selectable
by UML_X86 and IA64.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Link: https://lore.kernel.org/r/20220131165456.2160675-2-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Catalin Marinas
2022-01-31 16:54:52 +00:00
committed by Will Deacon
parent dfd42facf1
commit b62a8486de
4 changed files with 7 additions and 2 deletions
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4
include/linux/elfcore.h
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@@ -114,7 +114,7 @@ static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_reg
#endif
}
#if (defined(CONFIG_UML) && defined(CONFIG_X86_32)) || defined(CONFIG_IA64)
#ifdef CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS
/*
* These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
* extra segments containing the gate DSO contents. Dumping its
@@ -149,6 +149,6 @@ static inline size_t elf_core_extra_data_size(void)
{
return 0;
}
#endif
#endif /* CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS */
#endif /* _LINUX_ELFCORE_H */