build: move symvers files to kernel build dir
[oweals/openwrt.git] / include / toplevel.mk
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
9 PREP_MK= OPENWRT_BUILD= QUIET=0
10
11 export IS_TTY=$(shell tty -s && echo 1 || echo 0)
12
13 include $(TOPDIR)/include/verbose.mk
14
15 ifeq ($(SDK),1)
16   include $(TOPDIR)/include/version.mk
17 else
18   REVISION:=$(shell $(TOPDIR)/scripts/getver.sh)
19   SOURCE_DATE_EPOCH:=$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh)
20 endif
21
22 HOSTCC ?= $(CC)
23 export REVISION
24 export SOURCE_DATE_EPOCH
25 export GIT_CONFIG_PARAMETERS='core.autocrlf=false'
26 export GIT_ASKPASS:=/bin/true
27 export MAKE_JOBSERVER=$(filter --jobserver%,$(MAKEFLAGS))
28 export GNU_HOST_NAME:=$(shell $(TOPDIR)/scripts/config.guess)
29 export HOST_OS:=$(shell uname)
30 export HOST_ARCH:=$(shell uname -m)
31
32 # prevent perforce from messing with the patch utility
33 unexport P4PORT P4USER P4CONFIG P4CLIENT
34
35 # prevent user defaults for quilt from interfering
36 unexport QUILT_PATCHES QUILT_PATCH_OPTS
37
38 unexport C_INCLUDE_PATH CROSS_COMPILE ARCH
39
40 # prevent distro default LPATH from interfering
41 unexport LPATH
42
43 # make sure that a predefined CFLAGS variable does not disturb packages
44 export CFLAGS=
45 export LDFLAGS=
46
47 empty:=
48 space:= $(empty) $(empty)
49 path:=$(subst :,$(space),$(PATH))
50 path:=$(filter-out .%,$(path))
51 path:=$(subst $(space),:,$(path))
52 export PATH:=$(path)
53
54 unexport TAR_OPTIONS
55
56 ifneq ($(shell $(HOSTCC) 2>&1 | grep clang),)
57   export HOSTCC_REAL?=$(HOSTCC)
58   export HOSTCC_WRAPPER:=$(TOPDIR)/scripts/clang-gcc-wrapper
59 else
60   export HOSTCC_WRAPPER:=$(HOSTCC)
61 endif
62
63 ifeq ($(FORCE),)
64   .config scripts/config/conf scripts/config/mconf: staging_dir/host/.prereq-build
65 endif
66
67 SCAN_COOKIE?=$(shell echo $$$$)
68 export SCAN_COOKIE
69
70 SUBMAKE:=umask 022; $(SUBMAKE)
71
72 ULIMIT_FIX=_limit=`ulimit -n`; [ "$$_limit" = "unlimited" -o "$$_limit" -ge 1024 ] || ulimit -n 1024;
73
74 prepare-mk: staging_dir/host/.prereq-build FORCE ;
75
76 ifdef SDK
77   IGNORE_PACKAGES = linux
78 endif
79
80 _ignore = $(foreach p,$(IGNORE_PACKAGES),--ignore $(p))
81
82 prepare-tmpinfo: FORCE
83         @+$(MAKE) -r -s staging_dir/host/.prereq-build $(PREP_MK)
84         mkdir -p tmp/info
85         $(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="packageinfo" SCAN_DIR="package" SCAN_NAME="package" SCAN_DEPTH=5 SCAN_EXTRA=""
86         $(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f include/scan.mk SCAN_TARGET="targetinfo" SCAN_DIR="target/linux" SCAN_NAME="target" SCAN_DEPTH=2 SCAN_EXTRA="" SCAN_MAKEOPTS="TARGET_BUILD=1"
87         for type in package target; do \
88                 f=tmp/.$${type}info; t=tmp/.config-$${type}.in; \
89                 [ "$$t" -nt "$$f" ] || ./scripts/$${type}-metadata.pl $(_ignore) config "$$f" > "$$t" || { rm -f "$$t"; echo "Failed to build $$t"; false; break; }; \
90         done
91         [ tmp/.config-feeds.in -nt tmp/.packageauxvars ] || ./scripts/feeds feed_config > tmp/.config-feeds.in
92         ./scripts/package-metadata.pl mk tmp/.packageinfo > tmp/.packagedeps || { rm -f tmp/.packagedeps; false; }
93         ./scripts/package-metadata.pl pkgaux tmp/.packageinfo > tmp/.packageauxvars || { rm -f tmp/.packageauxvars; false; }
94         touch $(TOPDIR)/tmp/.build
95
96 .config: ./scripts/config/conf $(if $(CONFIG_HAVE_DOT_CONFIG),,prepare-tmpinfo)
97         @+if [ \! -e .config ] || ! grep CONFIG_HAVE_DOT_CONFIG .config >/dev/null; then \
98                 [ -e $(HOME)/.openwrt/defconfig ] && cp $(HOME)/.openwrt/defconfig .config; \
99                 $(_SINGLE)$(NO_TRACE_MAKE) menuconfig $(PREP_MK); \
100         fi
101
102 ifneq ($(DISTRO_PKG_CONFIG),)
103 scripts/config/mconf: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
104 endif
105 scripts/config/mconf:
106         @$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC_WRAPPER)"
107
108 $(eval $(call rdep,scripts/config,scripts/config/mconf))
109
110 scripts/config/qconf:
111         @$(_SINGLE)$(SUBMAKE) -s -C scripts/config qconf \
112                 CC="$(HOSTCC_WRAPPER)" \
113                 DISTRO-PKG-CONFIG="$(DISTRO_PKG_CONFIG)"
114
115 scripts/config/conf:
116         @$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC_WRAPPER)"
117
118 config: scripts/config/conf prepare-tmpinfo FORCE
119         [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
120                 $< Config.in
121
122 config-clean: FORCE
123         $(_SINGLE)$(NO_TRACE_MAKE) -C scripts/config clean
124
125 defconfig: scripts/config/conf prepare-tmpinfo FORCE
126         touch .config
127         @if [ ! -s .config -a -e $(HOME)/.openwrt/defconfig ]; then cp $(HOME)/.openwrt/defconfig .config; fi
128         [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
129                 $< --defconfig=.config Config.in
130
131 confdefault-y=allyes
132 confdefault-m=allmod
133 confdefault-n=allno
134 confdefault:=$(confdefault-$(CONFDEFAULT))
135
136 oldconfig: scripts/config/conf prepare-tmpinfo FORCE
137         [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
138                 $< --$(if $(confdefault),$(confdefault),old)config Config.in
139
140 menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
141         if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
142                 cp $(HOME)/.openwrt/defconfig .config; \
143         fi
144         [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
145                 $< Config.in
146
147 xconfig: scripts/config/qconf prepare-tmpinfo FORCE
148         if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
149                 cp $(HOME)/.openwrt/defconfig .config; \
150         fi
151         $< Config.in
152
153 prepare_kernel_conf: .config toolchain/install FORCE
154
155 ifeq ($(wildcard staging_dir/host/bin/quilt),)
156   prepare_kernel_conf:
157         @+$(SUBMAKE) -r tools/quilt/compile
158 else
159   prepare_kernel_conf: ;
160 endif
161
162 kernel_oldconfig: prepare_kernel_conf
163         $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux oldconfig
164
165 ifneq ($(DISTRO_PKG_CONFIG),)
166 kernel_menuconfig: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
167 kernel_nconfig: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
168 endif
169 kernel_menuconfig: prepare_kernel_conf
170         $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux menuconfig
171
172 kernel_nconfig: prepare_kernel_conf
173         $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux nconfig
174
175 staging_dir/host/.prereq-build: include/prereq-build.mk
176         mkdir -p tmp
177         @$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
178                 echo "Prerequisite check failed. Use FORCE=1 to override."; \
179                 false; \
180         }
181   ifneq ($(realpath $(TOPDIR)/include/prepare.mk),)
182         @$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prepare.mk prepare 2>/dev/null || { \
183                 echo "Preparation failed."; \
184                 false; \
185         }
186   endif
187         touch $@
188
189 printdb: FORCE
190         @$(_SINGLE)$(NO_TRACE_MAKE) -p $@ V=99 DUMP_TARGET_DB=1 2>&1
191
192 ifndef SDK
193   DOWNLOAD_DIRS = tools/download toolchain/download package/download target/download
194 else
195   DOWNLOAD_DIRS = package/download
196 endif
197
198 download: .config FORCE $(if $(wildcard $(TOPDIR)/staging_dir/host/bin/flock),,tools/flock/compile)
199         @+$(foreach dir,$(DOWNLOAD_DIRS),$(SUBMAKE) $(dir);)
200
201 clean dirclean: .config
202         @+$(SUBMAKE) -r $@
203
204 prereq:: prepare-tmpinfo .config
205         @+$(NO_TRACE_MAKE) -r -s $@
206
207 check: .config FORCE
208         @+$(NO_TRACE_MAKE) -r -s $@ QUIET= V=s
209
210 val.%: FORCE
211         @+$(NO_TRACE_MAKE) -r -s $@ QUIET= V=s
212
213 WARN_PARALLEL_ERROR = $(if $(BUILD_LOG),,$(and $(filter -j,$(MAKEFLAGS)),$(findstring s,$(OPENWRT_VERBOSE))))
214
215 ifeq ($(SDK),1)
216
217 %::
218         @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
219         @./scripts/config/conf --defconfig=.config Config.in
220         @+$(ULIMIT_FIX) $(SUBMAKE) -r $@
221
222 else
223
224 %::
225         @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
226         @( \
227                 cp .config tmp/.config; \
228                 ./scripts/config/conf --defconfig=tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
229                 if ./scripts/kconfig.pl '>' .config tmp/.config | grep -q CONFIG; then \
230                         printf "$(_R)WARNING: your configuration is out of sync. Please run make menuconfig, oldconfig or defconfig!$(_N)\n" >&2; \
231                 fi \
232         )
233         @+$(ULIMIT_FIX) $(SUBMAKE) -r $@ $(if $(WARN_PARALLEL_ERROR), || { \
234                 printf "$(_R)Build failed - please re-run with -j1 to see the real error message$(_N)\n" >&2; \
235                 false; \
236         } )
237
238 endif
239
240 # update all feeds, re-create index files, install symlinks
241 package/symlinks:
242         ./scripts/feeds update -a
243         ./scripts/feeds install -a
244
245 # re-create index files, install symlinks
246 package/symlinks-install:
247         ./scripts/feeds update -i
248         ./scripts/feeds install -a
249
250 # remove all symlinks, don't touch ./feeds
251 package/symlinks-clean:
252         ./scripts/feeds uninstall -a
253
254 help:
255         cat README
256
257 distclean:
258         rm -rf bin build_dir .config* dl feeds key-build* logs package/feeds package/openwrt-packages staging_dir tmp
259         @$(_SINGLE)$(SUBMAKE) -C scripts/config clean
260
261 ifeq ($(findstring v,$(DEBUG)),)
262   .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
263 endif
264 .PHONY: help FORCE
265 .NOTPARALLEL:
266