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ARM: 6485/5: proc/vmcore - allow archs to override vmcore_elf_check_arch()

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Allow architectures to redefine this macro if needed. This is useful for
example in architectures where 64-bit ELF vmcores are not supported.
Specifying zero vmcore_elf64_check_arch() allows compiler to optimize
away unnecessary parts of parse_crash_elf64_headers().

We also rename the macro to vmcore_elf64_check_arch() to reflect that it
is used for 64-bit vmcores only.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Mika Westerberg
2010-11-19 09:29:24 +01:00
committed by Russell King
parent e8a7e48bb2
commit 9833c39400
2 changed files with 9 additions and 2 deletions
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fs/proc/vmcore.c
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@@ -499,7 +499,7 @@ static int __init parse_crash_elf64_headers(void)
/* Do some basic Verification. */
if (memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0 ||
(ehdr.e_type != ET_CORE) ||
!vmcore_elf_check_arch(&ehdr) ||
!vmcore_elf64_check_arch(&ehdr) ||
ehdr.e_ident[EI_CLASS] != ELFCLASS64 ||
ehdr.e_ident[EI_VERSION] != EV_CURRENT ||
ehdr.e_version != EV_CURRENT ||