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kbuild: Use HOST*FLAGS options from the command line

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Now that we have the rename in place, reuse the HOST*FLAGS options as
something that can be set from the command line and included with the
rest of the flags.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Laura Abbott 2018-07-09 17:46:02 -07:00 committed by Masahiro Yamada
parent 8377bd2b9e
commit f92d19e0ef
2 changed files with 21 additions and 4 deletions
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16
Documentation/kbuild/kbuild.txt
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@ -50,6 +50,22 @@ LDFLAGS_MODULE
-------------------------------------------------- --------------------------------------------------
Additional options used for $(LD) when linking modules. Additional options used for $(LD) when linking modules.
HOSTCFLAGS
--------------------------------------------------
Additional flags to be passed to $(HOSTCC) when building host programs.
HOSTCXXFLAGS
--------------------------------------------------
Additional flags to be passed to $(HOSTCXX) when building host programs.
HOSTLDFLAGS
--------------------------------------------------
Additional flags to be passed when linking host programs.
HOSTLDLIBS
--------------------------------------------------
Additional libraries to link against when building host programs.
KBUILD_KCONFIG KBUILD_KCONFIG
-------------------------------------------------- --------------------------------------------------
Set the top-level Kconfig file to the value of this environment Set the top-level Kconfig file to the value of this environment

9
Makefile
View File

@ -360,10 +360,11 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
HOSTCC = gcc HOSTCC = gcc
HOSTCXX = g++ HOSTCXX = g++
KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
# Make variables (CC, etc...) # Make variables (CC, etc...)
AS = $(CROSS_COMPILE)as AS = $(CROSS_COMPILE)as