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kbuild: add CONFIG_ASM_MODVERSIONS

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Add CONFIG_ASM_MODVERSIONS. This allows to remove one if-conditional
nesting in scripts/Makefile.build.

scripts/Makefile.build is run every time Kbuild descends into a
sub-directory. So, I want to avoid $(wildcard ...) evaluation
where possible although computing $(wildcard ...) is so cheap that
it may not make measurable performance difference.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Masahiro Yamada
2019-08-19 14:54:20 +09:00
parent a564bdeb5e
commit 2ff2b7ec65
14 changed files with 27 additions and 6 deletions
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8
init/Kconfig
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@@ -1989,6 +1989,14 @@ config MODVERSIONS
make them incompatible with the kernel you are running. If
unsure, say N.
config ASM_MODVERSIONS
bool
default HAVE_ASM_MODVERSIONS && MODVERSIONS
help
This enables module versioning for exported symbols also from
assembly. This can be enabled only when the target architecture
supports it.
config MODULE_REL_CRCS
bool
depends on MODVERSIONS