1# Makefile for OpenWrt
2#
3# Copyright (C) 2007-2012 OpenWrt.org
4#
5# This is free software, licensed under the GNU General Public License v2.
6# See /LICENSE for more information.
7#
8
9RELEASE:=Designated Driver
10PREP_MK= OPENWRT_BUILD= QUIET=0
11
12export IS_TTY=$(shell tty -s && echo 1 || echo 0)
13
14include $(TOPDIR)/include/verbose.mk
15
16ifeq ($(SDK),1)
17  include $(TOPDIR)/include/version.mk
18else
19  REVISION:=$(shell $(TOPDIR)/scripts/getver.sh)
20endif
21
22HOSTCC ?= $(CC)
23export RELEASE
24export REVISION
25export GIT_CONFIG_PARAMETERS='core.autocrlf=false'
26export MAKE_JOBSERVER=$(filter --jobserver%,$(MAKEFLAGS))
27export SOURCE_DATE_EPOCH:=$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh)
28
29# prevent perforce from messing with the patch utility
30unexport P4PORT P4USER P4CONFIG P4CLIENT
31
32# prevent user defaults for quilt from interfering
33unexport QUILT_PATCHES QUILT_PATCH_OPTS
34
35unexport C_INCLUDE_PATH CROSS_COMPILE ARCH
36
37# prevent distro default LPATH from interfering
38unexport LPATH
39
40# make sure that a predefined CFLAGS variable does not disturb packages
41export CFLAGS=
42export LDFLAGS=
43
44empty:=
45space:= $(empty) $(empty)
46path:=$(subst :,$(space),$(PATH))
47path:=$(filter-out .%,$(path))
48path:=$(subst $(space),:,$(path))
49export PATH:=$(path)
50
51unexport TAR_OPTIONS
52
53ifneq ($(shell $(HOSTCC) 2>&1 | grep clang),)
54  export HOSTCC_REAL?=$(HOSTCC)
55  export HOSTCC_WRAPPER:=$(TOPDIR)/scripts/clang-gcc-wrapper
56else
57  export HOSTCC_WRAPPER:=$(HOSTCC)
58endif
59
60ifeq ($(FORCE),)
61  .config scripts/config/conf scripts/config/mconf: staging_dir/host/.prereq-build
62endif
63
64SCAN_COOKIE?=$(shell echo $$$$)
65export SCAN_COOKIE
66
67SUBMAKE:=umask 022; $(SUBMAKE)
68
69ULIMIT_FIX=_limit=`ulimit -n`; [ "$$_limit" = "unlimited" -o "$$_limit" -ge 1024 ] || ulimit -n 1024;
70
71prepare-mk: FORCE ;
72
73ifdef SDK
74  IGNORE_PACKAGES = linux
75endif
76
77_ignore = $(foreach p,$(IGNORE_PACKAGES),--ignore $(p))
78
79prepare-tmpinfo: FORCE
80	@+$(MAKE) -r -s staging_dir/host/.prereq-build $(PREP_MK)
81	mkdir -p tmp/info
82	$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="packageinfo" SCAN_DIR="package" SCAN_NAME="package" SCAN_DEPS="$(TOPDIR)/include/package*.mk $(TOPDIR)/overlay/*/*.mk" SCAN_DEPTH=5 SCAN_EXTRA=""
83	$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="targetinfo" SCAN_DIR="target/linux" SCAN_NAME="target" SCAN_DEPS="profiles/*.mk $(TOPDIR)/include/kernel*.mk $(TOPDIR)/include/target.mk" SCAN_DEPTH=2 SCAN_EXTRA="" SCAN_MAKEOPTS="TARGET_BUILD=1"
84	for type in package target; do \
85		f=tmp/.$${type}info; t=tmp/.config-$${type}.in; \
86		[ "$$t" -nt "$$f" ] || ./scripts/metadata.pl $(_ignore) $${type}_config "$$f" > "$$t" || { rm -f "$$t"; echo "Failed to build $$t"; false; break; }; \
87	done
88	[ tmp/.config-feeds.in -nt tmp/.packagesubdirs ] || ./scripts/feeds feed_config > tmp/.config-feeds.in
89	./scripts/metadata.pl package_mk tmp/.packageinfo > tmp/.packagedeps || { rm -f tmp/.packagedeps; false; }
90	./scripts/metadata.pl package_subdirs tmp/.packageinfo > tmp/.packagesubdirs || { rm -f tmp/.packagesubdirs; false; }
91	touch $(TOPDIR)/tmp/.build
92
93.config: ./scripts/config/conf $(if $(CONFIG_HAVE_DOT_CONFIG),,prepare-tmpinfo)
94	@+if [ \! -e .config ] || ! grep CONFIG_HAVE_DOT_CONFIG .config >/dev/null; then \
95		[ -e $(HOME)/.openwrt/defconfig ] && cp $(HOME)/.openwrt/defconfig .config; \
96		$(_SINGLE)$(NO_TRACE_MAKE) menuconfig $(PREP_MK); \
97	fi
98
99scripts/config/mconf:
100	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC_WRAPPER)"
101
102$(eval $(call rdep,scripts/config,scripts/config/mconf))
103
104scripts/config/conf:
105	@$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC_WRAPPER)"
106
107config: scripts/config/conf prepare-tmpinfo FORCE
108	$< Config.in
109
110config-clean: FORCE
111	$(_SINGLE)$(NO_TRACE_MAKE) -C scripts/config clean
112
113defconfig: scripts/config/conf prepare-tmpinfo FORCE
114	touch .config
115	@if [ -e $(HOME)/.openwrt/defconfig ]; then cp $(HOME)/.openwrt/defconfig .config; fi
116	$< --defconfig=.config Config.in
117
118confdefault-y=allyes
119confdefault-m=allmod
120confdefault-n=allno
121confdefault:=$(confdefault-$(CONFDEFAULT))
122
123oldconfig: scripts/config/conf prepare-tmpinfo FORCE
124	$< --$(if $(confdefault),$(confdefault),old)config Config.in
125
126menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
127	if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
128		cp $(HOME)/.openwrt/defconfig .config; \
129	fi
130	$< Config.in
131
132prepare_kernel_conf: .config FORCE
133
134ifeq ($(wildcard staging_dir/host/bin/quilt),)
135  prepare_kernel_conf:
136	@+$(SUBMAKE) -r tools/quilt/install
137else
138  prepare_kernel_conf: ;
139endif
140
141kernel_oldconfig: prepare_kernel_conf
142	$(_SINGLE)$(NO_TRACE_MAKE) -C target/linux oldconfig
143
144kernel_menuconfig: prepare_kernel_conf
145	$(_SINGLE)$(NO_TRACE_MAKE) -C target/linux menuconfig
146
147kernel_nconfig: prepare_kernel_conf
148	$(_SINGLE)$(NO_TRACE_MAKE) -C target/linux nconfig
149
150staging_dir/host/.prereq-build: include/prereq-build.mk
151	mkdir -p tmp
152	rm -f tmp/.host.mk
153	@$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
154		echo "Prerequisite check failed. Use FORCE=1 to override."; \
155		false; \
156	}
157  ifneq ($(realpath $(TOPDIR)/include/prepare.mk),)
158	@$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prepare.mk prepare 2>/dev/null || { \
159		echo "Preparation failed."; \
160		false; \
161	}
162  endif
163	touch $@
164
165printdb: FORCE
166	@$(_SINGLE)$(NO_TRACE_MAKE) -p $@ V=99 DUMP_TARGET_DB=1 2>&1
167
168download: .config FORCE
169	@+$(SUBMAKE) tools/download
170	@+$(SUBMAKE) toolchain/download
171	@+$(SUBMAKE) package/download
172	@+$(SUBMAKE) target/download
173
174clean dirclean: .config
175	@+$(SUBMAKE) -r $@
176
177prereq:: prepare-tmpinfo .config
178	@+$(NO_TRACE_MAKE) -r -s $@
179
180WARN_PARALLEL_ERROR = $(if $(BUILD_LOG),,$(and $(filter -j,$(MAKEFLAGS)),$(findstring s,$(OPENWRT_VERBOSE))))
181
182ifeq ($(SDK),1)
183
184%::
185	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
186	@./scripts/config/conf --defconfig=.config Config.in
187	@+$(ULIMIT_FIX) $(SUBMAKE) -r $@
188
189else
190
191%::
192	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
193	@( \
194		cp .config tmp/.config; \
195		./scripts/config/conf --defconfig=tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
196		if ./scripts/kconfig.pl '>' .config tmp/.config | grep -q CONFIG; then \
197			printf "$(_R)WARNING: your configuration is out of sync. Please run make menuconfig, oldconfig or defconfig!$(_N)\n" >&2; \
198		fi \
199	)
200	@+$(ULIMIT_FIX) $(SUBMAKE) -r $@ $(if $(WARN_PARALLEL_ERROR), || { \
201		printf "$(_R)Build failed - please re-run with -j1 to see the real error message$(_N)\n" >&2; \
202		false; \
203	} )
204
205endif
206
207# update all feeds, re-create index files, install symlinks
208package/symlinks:
209	./scripts/feeds update -a
210	./scripts/feeds install -a
211
212# re-create index files, install symlinks
213package/symlinks-install:
214	./scripts/feeds update -i
215	./scripts/feeds install -a
216
217# remove all symlinks, don't touch ./feeds
218package/symlinks-clean:
219	./scripts/feeds uninstall -a
220
221help:
222	cat README
223
224docs docs/compile: FORCE
225	@$(_SINGLE)$(SUBMAKE) -C docs compile
226
227docs/clean: FORCE
228	@$(_SINGLE)$(SUBMAKE) -C docs clean
229
230distclean:
231	rm -rf bin build_dir .config* dl feeds key-build* logs package/feeds package/openwrt-packages staging_dir tmp
232	@$(_SINGLE)$(SUBMAKE) -C scripts/config clean
233
234ifeq ($(findstring v,$(DEBUG)),)
235  .SILENT: symlinkclean clean dirclean distclean config-clean download help tmpinfo-clean .config scripts/config/mconf scripts/config/conf menuconfig staging_dir/host/.prereq-build tmp/.prereq-package prepare-tmpinfo
236endif
237.PHONY: help FORCE
238.NOTPARALLEL:
239
240