x86/boot: Construct PE/COFF .text section from assembler

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Now that the size of the setup block is visible to the assembler, it is
possible to populate the PE/COFF header fields from the asm code
directly, instead of poking the values into the binary using the build
tool. This will make it easier to reorganize the section layout without
having to tweak the build tool in lockstep.

This change has no impact on the resulting bzImage binary.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230915171623.655440-15-ardb@google.com

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Ard Biesheuvel 2023-09-15 17:16:29 +00:00 • committed by Ingo Molnar

parent aeb92067f6

commit efa089e63b

2 changed files with 7 additions and 62 deletions

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22

arch/x86/boot/header.S

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47

arch/x86/boot/tools/build.c

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