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arm64: efi: clean up Image header after PE header has been split off

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After having split off the PE header, clean up the bits that remain:
use .long consistently, merge two adjacent #ifdef CONFIG_EFI blocks,
fix the offset of the PE header pointer and remove the redundant .align
that follows it.

Also, since we will be eliminating all open coded constants from the
EFI header in subsequent patches, let's replace the open coded "ARM\x64"
magic number with its .ascii equivalent.

No changes to the resulting binary image are intended.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Ard Biesheuvel 2017-03-23 19:00:47 +00:00 committed by Catalin Marinas
parent b5f4a214b8
commit 99922257cf
1 changed files with 3 additions and 9 deletions
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12
arch/arm64/kernel/head.S
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@ -91,20 +91,14 @@ _head:
.quad 0 // reserved .quad 0 // reserved
.quad 0 // reserved .quad 0 // reserved
.quad 0 // reserved .quad 0 // reserved
.byte 0x41 // Magic number, "ARM\x64" .ascii "ARM\x64" // Magic number
.byte 0x52
.byte 0x4d
.byte 0x64
#ifdef CONFIG_EFI #ifdef CONFIG_EFI
.long pe_header - _head // Offset to the PE header. .long pe_header - _head // Offset to the PE header.
#else
.word 0 // reserved
#endif
#ifdef CONFIG_EFI
.align 3
pe_header: pe_header:
__EFI_PE_HEADER __EFI_PE_HEADER
#else
.long 0 // reserved
#endif #endif
__INIT __INIT