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Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds 

CONFIG_EFI_DEBUG embeds absolute file paths into object files, which
makes the resulting vmlinux specific to the build environment.

Add a note about this in reproducible-builds.rst

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20250924-kbuild-doc-config-debug-efi-in-reproducible-builds-v2-1-d2d6b9dcdb7d@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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Masahiro Yamada 2025-09-24 21:47:58 +02:00 committed by Nathan Chancellor
parent c7d3dd9163
commit 37fac070eb
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Documentation/kbuild/reproducible-builds.rst
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@ -61,6 +61,9 @@ supported.
The Reproducible Builds web site has more information about these The Reproducible Builds web site has more information about these
`prefix-map options`_. `prefix-map options`_.
Some CONFIG options such as `CONFIG_DEBUG_EFI` embed absolute paths in
object files. Such options should be disabled.
Generated files in source packages Generated files in source packages
---------------------------------- ----------------------------------