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kernel-defaults: fix external kernel build when user_headers is missing
[openwrt/openwrt.git] / include / toplevel.mk
diff --git a/include/toplevel.mk b/include/toplevel.mk
index 2b3b55db9f75d79b4400a5ee2a90718a3d48fd2f..f5a2593a105c5bd2cec238c81f33d9f096525fa6 100644 (file)
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -1,14 +1,10 @@
-# Makefile for OpenWrt
-#
-# Copyright (C) 2007-2012 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
+# SPDX-License-Identifier: GPL-2.0-only
 #
+# Copyright (C) 2007-2020 OpenWrt.org
 
 PREP_MK= OPENWRT_BUILD= QUIET=0
 
-export IS_TTY=$(shell tty -s && echo 1 || echo 0)
+export IS_TTY=$(if $(MAKE_TERMOUT),1,0)
 
 include $(TOPDIR)/include/verbose.mk
 
@@ -19,7 +15,6 @@ else
   SOURCE_DATE_EPOCH:=$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh)
 endif
 
-HOSTCC ?= $(CC)
 export REVISION
 export SOURCE_DATE_EPOCH
 export GIT_CONFIG_PARAMETERS='core.autocrlf=false'
@@ -29,6 +24,12 @@ export GNU_HOST_NAME:=$(shell $(TOPDIR)/scripts/config.guess)
 export HOST_OS:=$(shell uname)
 export HOST_ARCH:=$(shell uname -m)
 
+ifeq ($(HOST_OS),Darwin)
+  ifneq ($(filter /Applications/Xcode.app/% /Library/Developer/%,$(MAKE)),)
+    $(error Please use a newer version of GNU make. The version shipped by Apple is not supported)
+  endif
+endif
+
 # prevent perforce from messing with the patch utility
 unexport P4PORT P4USER P4CONFIG P4CLIENT
 
@@ -53,13 +54,6 @@ export PATH:=$(path)
 
 unexport TAR_OPTIONS
 
-ifneq ($(shell $(HOSTCC) 2>&1 | grep clang),)
-  export HOSTCC_REAL?=$(HOSTCC)
-  export HOSTCC_WRAPPER:=$(TOPDIR)/scripts/clang-gcc-wrapper
-else
-  export HOSTCC_WRAPPER:=$(HOSTCC)
-endif
-
 ifeq ($(FORCE),)
   .config scripts/config/conf scripts/config/mconf: staging_dir/host/.prereq-build
 endif
@@ -91,6 +85,7 @@ prepare-tmpinfo: FORCE
        [ tmp/.config-feeds.in -nt tmp/.packageauxvars ] || ./scripts/feeds feed_config > tmp/.config-feeds.in
        ./scripts/package-metadata.pl mk tmp/.packageinfo > tmp/.packagedeps || { rm -f tmp/.packagedeps; false; }
        ./scripts/package-metadata.pl pkgaux tmp/.packageinfo > tmp/.packageauxvars || { rm -f tmp/.packageauxvars; false; }
+       ./scripts/package-metadata.pl usergroup tmp/.packageinfo > tmp/.packageusergroup || { rm -f tmp/.packageusergroup; false; }
        touch $(TOPDIR)/tmp/.build
 
 .config: ./scripts/config/conf $(if $(CONFIG_HAVE_DOT_CONFIG),,prepare-tmpinfo)
@@ -99,25 +94,22 @@ prepare-tmpinfo: FORCE
                $(_SINGLE)$(NO_TRACE_MAKE) menuconfig $(PREP_MK); \
        fi
 
+ifeq ($(RECURSIVE_DEP_IS_ERROR),1)
+  KCONF_FLAGS=--fatalrecursive
+endif
 ifneq ($(DISTRO_PKG_CONFIG),)
-scripts/config/mconf: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
+scripts/config/%onf: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
 endif
-scripts/config/mconf:
-       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config all CC="$(HOSTCC_WRAPPER)"
+scripts/config/%onf: CFLAGS+= -O2
+scripts/config/%onf:
+       @$(_SINGLE)$(SUBMAKE) $(if $(findstring s,$(OPENWRT_VERBOSE)),,-s) \
+               -C scripts/config $(notdir $@)
 
 $(eval $(call rdep,scripts/config,scripts/config/mconf))
 
-scripts/config/qconf:
-       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config qconf \
-               CC="$(HOSTCC_WRAPPER)" \
-               DISTRO-PKG-CONFIG="$(DISTRO_PKG_CONFIG)"
-
-scripts/config/conf:
-       @$(_SINGLE)$(SUBMAKE) -s -C scripts/config conf CC="$(HOSTCC_WRAPPER)"
-
 config: scripts/config/conf prepare-tmpinfo FORCE
        [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
-               $< Config.in
+               $< $(KCONF_FLAGS) Config.in
 
 config-clean: FORCE
        $(_SINGLE)$(NO_TRACE_MAKE) -C scripts/config clean
@@ -126,7 +118,7 @@ defconfig: scripts/config/conf prepare-tmpinfo FORCE
        touch .config
        @if [ ! -s .config -a -e $(HOME)/.openwrt/defconfig ]; then cp $(HOME)/.openwrt/defconfig .config; fi
        [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
-               $< --defconfig=.config Config.in
+               $< $(KCONF_FLAGS) --defconfig=.config Config.in
 
 confdefault-y=allyes
 confdefault-m=allmod
@@ -135,7 +127,7 @@ confdefault:=$(confdefault-$(CONFDEFAULT))
 
 oldconfig: scripts/config/conf prepare-tmpinfo FORCE
        [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
-               $< --$(if $(confdefault),$(confdefault),old)config Config.in
+               $< $(KCONF_FLAGS) --$(if $(confdefault),$(confdefault),old)config Config.in
 
 menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
        if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
@@ -144,6 +136,13 @@ menuconfig: scripts/config/mconf prepare-tmpinfo FORCE
        [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
                $< Config.in
 
+nconfig: scripts/config/nconf prepare-tmpinfo FORCE
+       if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
+               cp $(HOME)/.openwrt/defconfig .config; \
+       fi
+       [ -L .config ] && export KCONFIG_OVERWRITECONFIG=1; \
+               $< Config.in
+
 xconfig: scripts/config/qconf prepare-tmpinfo FORCE
        if [ \! -e .config -a -e $(HOME)/.openwrt/defconfig ]; then \
                cp $(HOME)/.openwrt/defconfig .config; \
@@ -165,6 +164,7 @@ kernel_oldconfig: prepare_kernel_conf
 ifneq ($(DISTRO_PKG_CONFIG),)
 kernel_menuconfig: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
 kernel_nconfig: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
+kernel_xconfig: export PATH:=$(dir $(DISTRO_PKG_CONFIG)):$(PATH)
 endif
 kernel_menuconfig: prepare_kernel_conf
        $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux menuconfig
@@ -172,6 +172,9 @@ kernel_menuconfig: prepare_kernel_conf
 kernel_nconfig: prepare_kernel_conf
        $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux nconfig
 
+kernel_xconfig: prepare_kernel_conf
+       $(_SINGLE)$(NO_TRACE_MAKE) -C target/linux xconfig
+
 staging_dir/host/.prereq-build: include/prereq-build.mk
        mkdir -p tmp
        @$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
@@ -216,7 +219,7 @@ ifeq ($(SDK),1)
 
 %::
        @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
-       @./scripts/config/conf --defconfig=.config Config.in
+       @./scripts/config/conf $(KCONF_FLAGS) --defconfig=.config Config.in
        @+$(ULIMIT_FIX) $(SUBMAKE) -r $@
 
 else
@@ -225,7 +228,7 @@ else
        @+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
        @( \
                cp .config tmp/.config; \
-               ./scripts/config/conf --defconfig=tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
+               ./scripts/config/conf $(KCONF_FLAGS) --defconfig=tmp/.config -w tmp/.config Config.in > /dev/null 2>&1; \
                if ./scripts/kconfig.pl '>' .config tmp/.config | grep -q CONFIG; then \
                        printf "$(_R)WARNING: your configuration is out of sync. Please run make menuconfig, oldconfig or defconfig!$(_N)\n" >&2; \
                fi \
@@ -252,10 +255,10 @@ package/symlinks-clean:
        ./scripts/feeds uninstall -a
 
 help:
-       cat README
+       cat README.md
 
 distclean:
-       rm -rf bin build_dir .config* dl feeds key-build* logs package/feeds package/openwrt-packages staging_dir tmp
+       rm -rf bin build_dir .ccache .config* dl feeds key-build* logs package/feeds staging_dir tmp
        @$(_SINGLE)$(SUBMAKE) -C scripts/config clean
 
 ifeq ($(findstring v,$(DEBUG)),)
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