summaryrefslogtreecommitdiffstats
path: root/Makefile
diff options
context:
space:
mode:
authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-07-06 12:07:12 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-07-11 00:05:09 +0900
commit051f278e9d81bed253bf89c66c80b8b921aafa8a (patch)
tree188b90e6cd434ca30972e6166bfbc88e273d9474 /Makefile
parent75dd47472b92c320304436c9e38638bc04ae7a4a (diff)
downloadlinux-051f278e9d81bed253bf89c66c80b8b921aafa8a.tar.gz
linux-051f278e9d81bed253bf89c66c80b8b921aafa8a.tar.bz2
linux-051f278e9d81bed253bf89c66c80b8b921aafa8a.zip
kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree
Commit 25b146c5b8ce ("kbuild: allow Kbuild to start from any directory") deprecated KBUILD_SRCTREE. It is only used in tools/testing/selftest/ to distinguish out-of-tree build. Replace it with a new boolean flag, building_out_of_srctree. I also replaced the conditional ($(srctree),.) because the next commit will allow an absolute path to be used for $(srctree) even when building in the source tree. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile19
1 files changed, 8 insertions, 11 deletions
diff --git a/Makefile b/Makefile
index 99336b60f1a4..91ad737ff538 100644
--- a/Makefile
+++ b/Makefile
@@ -228,9 +228,12 @@ ifeq ("$(origin M)", "command line")
KBUILD_EXTMOD := $(M)
endif
+export KBUILD_CHECKSRC KBUILD_EXTMOD
+
ifeq ($(abs_srctree),$(abs_objtree))
# building in the source tree
srctree := .
+ building_out_of_srctree :=
else
ifeq ($(abs_srctree)/,$(dir $(abs_objtree)))
# building in a subdirectory of the source tree
@@ -238,19 +241,13 @@ else
else
srctree := $(abs_srctree)
endif
-
- # TODO:
- # KBUILD_SRC is only used to distinguish in-tree/out-of-tree build.
- # Replace it with $(srctree) or something.
- KBUILD_SRC := $(abs_srctree)
+ building_out_of_srctree := 1
endif
-export KBUILD_CHECKSRC KBUILD_EXTMOD KBUILD_SRC
-
objtree := .
VPATH := $(srctree)
-export srctree objtree VPATH
+export building_out_of_srctree srctree objtree VPATH
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
@@ -453,7 +450,7 @@ USERINCLUDE := \
LINUXINCLUDE := \
-I$(srctree)/arch/$(SRCARCH)/include \
-I$(objtree)/arch/$(SRCARCH)/include/generated \
- $(if $(filter .,$(srctree)),,-I$(srctree)/include) \
+ $(if $(building_out_of_srctree),-I$(srctree)/include) \
-I$(objtree)/include \
$(USERINCLUDE)
@@ -514,7 +511,7 @@ PHONY += outputmakefile
# At the same time when output Makefile generated, generate .gitignore to
# ignore whole output directory
outputmakefile:
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
$(Q)ln -fsn $(srctree) source
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
$(Q)test -e .gitignore || \
@@ -1101,7 +1098,7 @@ PHONY += prepare archprepare prepare1 prepare3
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
prepare3: include/config/kernel.release
-ifneq ($(srctree),.)
+ifdef building_out_of_srctree
@$(kecho) ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config -o \
-d $(srctree)/include/config -o \