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Subject[PATCH] kbuild: support simultaneous "make %config" and "make all"
Date
Kbuild is supposed to support mixed targets. (%config and build targets)

But "make all" did nothing if it was run with configuration targets.
For example,

$ LANG=C make defconfig all
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
SHIPPED scripts/kconfig/zconf.tab.c
SHIPPED scripts/kconfig/zconf.lex.c
SHIPPED scripts/kconfig/zconf.hash.c
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
*** Default configuration is based on 'x86_64_defconfig'
#
# configuration written to .config
#
make: Nothing to be done for `all'.

This commits allows "make %config all" and makes sure
mixed targets are built one by one in the given order.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Michal Marek <mmarek@suse.cz>
CC: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 12 ++++++++++--
scripts/mkmakefile | 15 ++++-----------
2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index 4eadf2d..40f731b 100644
--- a/Makefile
+++ b/Makefile
@@ -486,8 +486,16 @@ ifeq ($(mixed-targets),1)
# We're called with mixed targets (*config and build targets).
# Handle them one by one.

-%:: FORCE
- $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
+PHONY += $(MAKECMDGOALS) __build_one_by_one
+
+$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
+ @:
+
+__build_one_by_one:
+ $(Q)set -e; \
+ for i in $(MAKECMDGOALS); do \
+ $(MAKE) -f $(srctree)/Makefile $$i; \
+ done

else
ifeq ($(config-targets),1)
diff --git a/scripts/mkmakefile b/scripts/mkmakefile
index 0cc0442..84af27b 100644
--- a/scripts/mkmakefile
+++ b/scripts/mkmakefile
@@ -42,18 +42,11 @@ MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$

MAKEFLAGS += --no-print-directory

-.PHONY: all \$(MAKECMDGOALS)
+.PHONY: __sub-make \$(MAKECMDGOALS)

-all := \$(filter-out all Makefile,\$(MAKECMDGOALS))
+__sub-make:
+ \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS)

-all:
- \$(Q)\$(MAKE) \$(MAKEARGS) \$(all)
-
-Makefile:;
-
-\$(all): all
- @:
-
-%/: all
+\$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make
@:
EOF
--
1.8.3.2


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