nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

kbuild: implement CONFIG_HEADERS_INSTALL for Usermode Linux

Browse source 
userprogs sometimes need access to UAPI headers.
This is currently not possible for Usermode Linux, as UM is only
a pseudo architecture built on top of a regular architecture and does
not have its own UAPI.
Instead use the UAPI headers from the underlying regular architecture.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Thomas Weißschuh 2025-02-17 11:59:21 +01:00 committed by Masahiro Yamada
parent 700bd25bd4
commit 268d191abc
2 changed files with 4 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

5
Makefile
View file

@ -1361,9 +1361,12 @@ hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj
PHONY += headers
headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
$(if $(filter um, $(SRCARCH)), $(error Headers not exportable for UML))
ifdef HEADER_ARCH
$(Q)$(MAKE) -f $(srctree)/Makefile HEADER_ARCH= SRCARCH=$(HEADER_ARCH) headers
else
$(Q)$(MAKE) $(hdr-inst)=include/uapi
$(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
endif
ifdef CONFIG_HEADERS_INSTALL
prepare: headers

1
lib/Kconfig.debug
View file

@ -473,7 +473,6 @@ config READABLE_ASM
config HEADERS_INSTALL
bool "Install uapi headers to usr/include"
depends on !UML
help
This option will install uapi headers (headers exported to user-space)
into the usr/include directory for use during the kernel build.