diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2007-07-05 18:01:13 +0200 |
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committer | Sascha Hauer <sha@octopus.labnet.pengutronix.de> | 2007-07-05 18:01:13 +0200 |
commit | c56078afcc581ab9f3f564702cdbe07ea352c6a7 (patch) | |
tree | 4fe5d175660a263b7a1d66810496ada2a646bbab /Makefile | |
parent | 88271e5177476a45e7749e29a708c15234b55383 (diff) | |
download | barebox-c56078afcc581ab9f3f564702cdbe07ea352c6a7.tar.gz barebox-c56078afcc581ab9f3f564702cdbe07ea352c6a7.tar.xz |
svn_rev_008
add missing Kconfig
Diffstat (limited to 'Makefile')
-rw-r--r-- | Makefile | 2383 |
1 files changed, 1401 insertions, 982 deletions
@@ -1,1067 +1,1486 @@ +VERSION = 2 +PATCHLEVEL = 6 +SUBLEVEL = 20 +EXTRAVERSION =-rc5 +NAME = Homicidal Dwarf Hamster + +# *DOCUMENTATION* +# To see a list of typical targets execute "make help" +# More info can be located in ./README +# Comments in this file are targeted only to the developer, do not +# expect to learn how to build the kernel reading this file. + +# Do not: +# o use make's built-in rules and variables +# (this increases performance and avoid hard-to-debug behavour); +# o print "Entering directory ..."; +MAKEFLAGS += -rR --no-print-directory + +# We are using a recursive build, so we need to do a little thinking +# to get the ordering right. # -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# Most importantly: sub-Makefiles should only ever modify files in +# their own directory. If in some directory we have a dependency on +# a file in another dir (which doesn't happen often, but it's often +# unavoidable when linking the built-in.o targets which finally +# turn into vmlinux), we will call a sub make in that other dir, and +# after that we are sure that everything which is in that other dir +# is now up to date. # -# See file CREDITS for list of people who contributed to this -# project. +# The only cases where we need to modify files which have global +# effects are thus separated out and done before the recursive +# descending is started. They are now explicitly listed as the +# prepare rule. + +# To put more focus on warnings, be less verbose as default +# Use 'make V=1' to see the full commands + +ifdef V + ifeq ("$(origin V)", "command line") + KBUILD_VERBOSE = $(V) + endif +endif +ifndef KBUILD_VERBOSE + KBUILD_VERBOSE = 0 +endif + +# Call a source code checker (by default, "sparse") as part of the +# C compilation. # -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License as -# published by the Free Software Foundatio; either version 2 of -# the License, or (at your option) any later version. +# Use 'make C=1' to enable checking of only re-compiled files. +# Use 'make C=2' to enable checking of *all* source files, regardless +# of whether they are re-compiled or not. # -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. +# See the file "Documentation/sparse.txt" for more details, including +# where to get the "sparse" utility. + +ifdef C + ifeq ("$(origin C)", "command line") + KBUILD_CHECKSRC = $(C) + endif +endif +ifndef KBUILD_CHECKSRC + KBUILD_CHECKSRC = 0 +endif + +# Use make M=dir to specify directory of external module to build +# Old syntax make ... SUBDIRS=$PWD is still supported +# Setting the environment variable KBUILD_EXTMOD take precedence +ifdef SUBDIRS + KBUILD_EXTMOD ?= $(SUBDIRS) +endif +ifdef M + ifeq ("$(origin M)", "command line") + KBUILD_EXTMOD := $(M) + endif +endif + + +# kbuild supports saving output files in a separate directory. +# To locate output files in a separate directory two syntaxes are supported. +# In both cases the working directory must be the root of the kernel src. +# 1) O= +# Use "make O=dir/to/store/output/files/" # -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, -# MA 02111-1307 USA +# 2) Set KBUILD_OUTPUT +# Set the environment variable KBUILD_OUTPUT to point to the directory +# where the output files shall be placed. +# export KBUILD_OUTPUT=dir/to/store/output/files/ +# make # +# The O= assignment takes precedence over the KBUILD_OUTPUT environment +# variable. + + +# KBUILD_SRC is set on invocation of make in OBJ directory +# KBUILD_SRC is not intended to be used by the regular user (for now) +ifeq ($(KBUILD_SRC),) + +# OK, Make called in directory where kernel src resides +# Do we want to locate output files in a separate directory? +ifdef O + ifeq ("$(origin O)", "command line") + KBUILD_OUTPUT := $(O) + endif +endif + +# That's our default target when none is given on the command line +PHONY := _all +_all: + +ifneq ($(KBUILD_OUTPUT),) +# Invoke a second make in the output directory, passing relevant variables +# check that the output directory actually exists +saved-output := $(KBUILD_OUTPUT) +KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) +$(if $(KBUILD_OUTPUT),, \ + $(error output directory "$(saved-output)" does not exist)) + +PHONY += $(MAKECMDGOALS) + +$(filter-out _all,$(MAKECMDGOALS)) _all: + $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ + KBUILD_SRC=$(CURDIR) \ + KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@ + +# Leave processing to above invocation of make +skip-makefile := 1 +endif # ifneq ($(KBUILD_OUTPUT),) +endif # ifeq ($(KBUILD_SRC),) + +# We process the rest of the Makefile if this is the final invocation of make +ifeq ($(skip-makefile),) + +# If building an external module we do not care about the all: rule +# but instead _all depend on modules +PHONY += all +ifeq ($(KBUILD_EXTMOD),) +_all: all +else +_all: modules +endif -VERSION = 1 -PATCHLEVEL = 2 -SUBLEVEL = 0 -EXTRAVERSION = -U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) -VERSION_FILE = $(obj)include/version_autogenerated.h +srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) +TOPDIR := $(srctree) +# FIXME - TOPDIR is obsolete, use srctree/objtree +objtree := $(CURDIR) +src := $(srctree) +obj := $(objtree) -HOSTARCH := $(shell uname -m | \ - sed -e s/i.86/i386/ \ - -e s/sun4u/sparc64/ \ - -e s/arm.*/arm/ \ - -e s/sa110/arm/ \ - -e s/powerpc/ppc/ \ - -e s/macppc/ppc/) +VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) -HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ - sed -e 's/\(cygwin\).*/cygwin/') +export srctree objtree VPATH TOPDIR -export HOSTARCH HOSTOS -# Deal with colliding definitions from tcsh etc. -VENDOR= +# SUBARCH tells the usermode build what the underlying arch is. That is set +# first, and if a usermode build is happening, the "ARCH=um" on the command +# line overrides the setting of ARCH below. If a native build is happening, +# then ARCH is assigned, getting whatever value it gets normally, and +# SUBARCH is subsequently ignored. -######################################################################### +SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ + -e s/arm.*/arm/ -e s/sa110/arm/ \ + -e s/s390x/s390/ -e s/parisc64/parisc/ \ + -e s/ppc.*/powerpc/ -e s/mips.*/mips/ ) + +# Cross compiling and selecting different set of gcc/bin-utils +# --------------------------------------------------------------------------- # -# U-boot build supports producing a object files to the separate external -# directory. Two use cases are supported: +# When performing cross compilation for other architectures ARCH shall be set +# to the target architecture. (See arch/* for the possibilities). +# ARCH can be set during invocation of make: +# make ARCH=ia64 +# Another way is to have ARCH set in the environment. +# The default ARCH is the host where make is executed. + +# CROSS_COMPILE specify the prefix used for all executables used +# during compilation. Only gcc and related bin-utils executables +# are prefixed with $(CROSS_COMPILE). +# CROSS_COMPILE can be set on the command line +# make CROSS_COMPILE=ia64-linux- +# Alternatively CROSS_COMPILE can be set in the environment. +# Default value for CROSS_COMPILE is not to prefix executables +# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile + +ARCH ?= $(SUBARCH) +CROSS_COMPILE ?= + +# Architecture as present in compile.h +UTS_MACHINE := $(ARCH) + +KCONFIG_CONFIG ?= .config + +# SHELL used by kbuild +CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ + else if [ -x /bin/bash ]; then echo /bin/bash; \ + else echo sh; fi ; fi) + +HOSTCC = gcc +HOSTCXX = g++ +HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer +HOSTCXXFLAGS = -O2 + +# Decide whether to build built-in, modular, or both. +# Normally, just do built-in. + +KBUILD_MODULES := +KBUILD_BUILTIN := 1 + +# If we have only "make modules", don't compile built-in objects. +# When we're building modules with modversions, we need to consider +# the built-in objects during the descend as well, in order to +# make sure the checksums are up to date before we record them. + +ifeq ($(MAKECMDGOALS),modules) + KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) +endif + +# If we have "make <whatever> modules", compile modules +# in addition to whatever we do anyway. +# Just "make" or "make all" shall build modules as well + +ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) + KBUILD_MODULES := 1 +endif + +ifeq ($(MAKECMDGOALS),) + KBUILD_MODULES := 1 +endif + +export KBUILD_MODULES KBUILD_BUILTIN +export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD + +# Beautify output +# --------------------------------------------------------------------------- # -# 1) Add O= to the make command line -# 'make O=/tmp/build all' +# Normally, we echo the whole command before executing it. By making +# that echo $($(quiet)$(cmd)), we now have the possibility to set +# $(quiet) to choose other forms of output instead, e.g. # -# 2) Set environement variable BUILD_DIR to point to the desired location -# 'export BUILD_DIR=/tmp/build' -# 'make' +# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ +# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< # -# The second approach can also be used with a MAKEALL script -# 'export BUILD_DIR=/tmp/build' -# './MAKEALL' +# If $(quiet) is empty, the whole command will be printed. +# If it is set to "quiet_", only the short version will be printed. +# If it is set to "silent_", nothing will be printed at all, since +# the variable $(silent_cmd_cc_o_c) doesn't exist. # -# Command line 'O=' setting overrides BUILD_DIR environent variable. +# A simple variant is to prefix commands with $(Q) - that's useful +# for commands that shall be hidden in non-verbose mode. # -# When none of the above methods is used the local build is performed and -# the object files are placed in the source directory. +# $(Q)ln $@ :< # +# If KBUILD_VERBOSE equals 0 then the above command will be hidden. +# If KBUILD_VERBOSE equals 1 then the above command is displayed. -ifdef O -ifeq ("$(origin O)", "command line") -BUILD_DIR := $(O) -endif +ifeq ($(KBUILD_VERBOSE),1) + quiet = + Q = +else + quiet=quiet_ + Q = @ endif -ifneq ($(BUILD_DIR),) -saved-output := $(BUILD_DIR) - -# Attempt to create a output directory. -$(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR}) +# If the user is running make -s (silent mode), suppress echoing of +# commands -# Verify if it was successful. -BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd) -$(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist)) -endif # ifneq ($(BUILD_DIR),) +ifneq ($(findstring s,$(MAKEFLAGS)),) + quiet=silent_ +endif -OBJTREE := $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR)) -SRCTREE := $(CURDIR) -TOPDIR := $(SRCTREE) -LNDIR := $(OBJTREE) -export TOPDIR SRCTREE OBJTREE +export quiet Q KBUILD_VERBOSE + + +# Look for make include files relative to root of kernel src +MAKEFLAGS += --include-dir=$(srctree) + +# We need some generic definitions. +include $(srctree)/scripts/Kbuild.include + +# Make variables (CC, etc...) + +AS = $(CROSS_COMPILE)as +LD = $(CROSS_COMPILE)ld +CC = $(CROSS_COMPILE)gcc +CPP = $(CC) -E +AR = $(CROSS_COMPILE)ar +NM = $(CROSS_COMPILE)nm +STRIP = $(CROSS_COMPILE)strip +OBJCOPY = $(CROSS_COMPILE)objcopy +OBJDUMP = $(CROSS_COMPILE)objdump +AWK = awk +GENKSYMS = scripts/genksyms/genksyms +DEPMOD = /sbin/depmod +KALLSYMS = scripts/kallsyms +PERL = perl +CHECK = sparse + +CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF) +MODFLAGS = -DMODULE +CFLAGS_MODULE = $(MODFLAGS) +AFLAGS_MODULE = $(MODFLAGS) +LDFLAGS_MODULE = -r +CFLAGS_KERNEL = +AFLAGS_KERNEL = + + +# Use LINUXINCLUDE when you must reference the include/ directory. +# Needed to be compatible with the O= option +LINUXINCLUDE := -Iinclude \ + $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ + -include include/linux/autoconf.h + +CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) + +CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ + -fno-strict-aliasing -fno-common +AFLAGS := -D__ASSEMBLY__ + +# Read KERNELRELEASE from include/config/kernel.release (if it exists) +KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) +KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) + +export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION +export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC +export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE +export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS + +export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS +export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE +export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE + +# When compiling out-of-tree modules, put MODVERDIR in the module +# tree rather than in the kernel tree. The kernel tree might +# even be read-only. +export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions + +# Files to ignore in find ... statements + +RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o +export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git + +# =========================================================================== +# Rules shared between *config targets and build targets + +# Basic helpers built in scripts/ +PHONY += scripts_basic +scripts_basic: + $(Q)$(MAKE) $(build)=scripts/basic + +# To avoid any implicit rule to kick in, define an empty command. +scripts/basic/%: scripts_basic ; + +PHONY += outputmakefile +# outputmakefile generates a Makefile in the output directory, if using a +# separate output directory. This allows convenient use of make in the +# output directory. +outputmakefile: +ifneq ($(KBUILD_SRC),) + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ + $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) +endif -MKCONFIG := $(SRCTREE)/mkconfig -export MKCONFIG +# To make sure we do not include .config for any of the *config targets +# catch them early, and hand them over to scripts/kconfig/Makefile +# It is allowed to specify more targets when calling make, including +# mixing *config targets and build targets. +# For example 'make oldconfig all'. +# Detect when mixed targets is specified, and make a second invocation +# of make so .config is not included in this case either (for *config). + +no-dot-config-targets := clean mrproper distclean \ + cscope TAGS tags help %docs check% \ + include/linux/version.h headers_% \ + kernelrelease kernelversion + +config-targets := 0 +mixed-targets := 0 +dot-config := 1 + +ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) + ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) + dot-config := 0 + endif +endif -ifneq ($(OBJTREE),$(SRCTREE)) -REMOTE_BUILD := 1 -export REMOTE_BUILD +ifeq ($(KBUILD_EXTMOD),) + ifneq ($(filter config %config,$(MAKECMDGOALS)),) + config-targets := 1 + ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) + mixed-targets := 1 + endif + endif endif -# $(obj) and (src) are defined in config.mk but here in main Makefile -# we also need them before config.mk is included which is the case for -# some targets like unconfig, clean, clobber, distclean, etc. -ifneq ($(OBJTREE),$(SRCTREE)) -obj := $(OBJTREE)/ -src := $(SRCTREE)/ +ifeq ($(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= $@ + else -obj := -src := -endif -export obj src +ifeq ($(config-targets),1) +# =========================================================================== +# *config targets only - make sure prerequisites are updated, and descend +# in scripts/kconfig to make the *config target -######################################################################### +# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. +# KBUILD_DEFCONFIG may point out an alternative default configuration +# used for 'make defconfig' +include $(srctree)/arch/$(ARCH)/Makefile +export KBUILD_DEFCONFIG -ifeq ($(OBJTREE)/include/config.mk,$(wildcard $(OBJTREE)/include/config.mk)) +config %config: scripts_basic outputmakefile FORCE + $(Q)mkdir -p include/linux include/config + $(Q)$(MAKE) $(build)=scripts/kconfig $@ -# load ARCH, BOARD, and CPU configuration -include $(OBJTREE)/include/config.mk -export ARCH CPU BOARD VENDOR SOC +else +# =========================================================================== +# Build targets only - this includes vmlinux, arch specific targets, clean +# targets and others. In general all targets except *config targets. + +ifeq ($(KBUILD_EXTMOD),) +# Additional helpers built in scripts/ +# Carefully list dependencies so we do not try to build scripts twice +# in parallel +PHONY += scripts +scripts: scripts_basic include/config/auto.conf + $(Q)$(MAKE) $(build)=$(@) + +# Objects we will link into vmlinux / subdirs we need to visit +#init-y := init/ +#drivers-y := drivers/ sound/ +#net-y := net/ +#libs-y := lib/ +#core-y := usr/ +endif # KBUILD_EXTMOD + +ifeq ($(dot-config),1) +# Read in config +-include include/config/auto.conf + +ifeq ($(KBUILD_EXTMOD),) +# Read in dependencies to all Kconfig* files, make sure to run +# oldconfig if changes are detected. +-include include/config/auto.conf.cmd + +# To avoid any implicit rule to kick in, define an empty command +$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; + +# If .config is newer than include/config/auto.conf, someone tinkered +# with it and forgot to run make oldconfig. +# if auto.conf.cmd is missing then we are probably in a cleaned tree so +# we execute the config step to be sure to catch updated Kconfig files +include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd + $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig +else +# external modules needs include/linux/autoconf.h and include/config/auto.conf +# but do not care if they are up-to-date. Use auto.conf to trigger the test +PHONY += include/config/auto.conf + +include/config/auto.conf: + $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ + echo; \ + echo " ERROR: Kernel configuration is invalid."; \ + echo " include/linux/autoconf.h or $@ are missing."; \ + echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ + echo; \ + /bin/false) + +endif # KBUILD_EXTMOD -ifndef CROSS_COMPILE -ifeq ($(HOSTARCH),ppc) -CROSS_COMPILE = else -ifeq ($(ARCH),ppc) -CROSS_COMPILE = powerpc-linux- -endif -ifeq ($(ARCH),arm) -CROSS_COMPILE = arm-linux- -endif -ifeq ($(ARCH),i386) -ifeq ($(HOSTARCH),i386) -CROSS_COMPILE = +# Dummy target needed, because used as prerequisite +include/config/auto.conf: ; +endif # $(dot-config) + +# The all: target is the default when no target is given on the +# command line. +# This allow a user to issue only 'make' to build a kernel including modules +# Defaults vmlinux but it is usually overridden in the arch makefile +all: vmlinux + +ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE +CFLAGS += -Os else -CROSS_COMPILE = i386-linux- -endif -endif -ifeq ($(ARCH),mips) -CROSS_COMPILE = mips_4KC- -endif -ifeq ($(ARCH),nios) -CROSS_COMPILE = nios-elf- -endif -ifeq ($(ARCH),nios2) -CROSS_COMPILE = nios2-elf- -endif -ifeq ($(ARCH),m68k) -CROSS_COMPILE = m68k-elf- -endif -ifeq ($(ARCH),microblaze) -CROSS_COMPILE = mb- -endif -ifeq ($(ARCH),blackfin) -CROSS_COMPILE = bfin-elf- -endif -ifeq ($(ARCH),avr32) -CROSS_COMPILE = avr32- +CFLAGS += -O2 endif + +include $(srctree)/arch/$(ARCH)/Makefile + +ifdef CONFIG_FRAME_POINTER +CFLAGS += -fno-omit-frame-pointer $(call cc-option,-fno-optimize-sibling-calls,) +else +CFLAGS += -fomit-frame-pointer endif + +ifdef CONFIG_DEBUG_INFO +CFLAGS += -g endif -export CROSS_COMPILE +# Force gcc to behave correct even for buggy distributions +CFLAGS += $(call cc-option, -fno-stack-protector) -# load other configuration -include $(TOPDIR)/config.mk +# arch Makefile may override CC so keep this after arch Makefile is included +NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) +CHECKFLAGS += $(NOSTDINC_FLAGS) -######################################################################### -# U-Boot objects....order is important (i.e. start must be first) +# warn about C99 declaration after statement +CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) -OBJS = cpu/$(CPU)/start.o -ifeq ($(CPU),i386) -OBJS += cpu/$(CPU)/start16.o -OBJS += cpu/$(CPU)/reset.o -endif -ifeq ($(CPU),ppc4xx) -OBJS += cpu/$(CPU)/resetvec.o -endif -ifeq ($(CPU),mpc85xx) -OBJS += cpu/$(CPU)/resetvec.o -endif -ifeq ($(CPU),mpc86xx) -OBJS += cpu/$(CPU)/resetvec.o +# disable pointer signed / unsigned warnings in gcc 4.0 +CFLAGS += $(call cc-option,-Wno-pointer-sign,) + +# Default kernel image to build when no specific target is given. +# KBUILD_IMAGE may be overruled on the command line or +# set in the environment +# Also any assignments in arch/$(ARCH)/Makefile take precedence over +# this default value +export KBUILD_IMAGE ?= vmlinux + +# +# INSTALL_PATH specifies where to place the updated kernel and system map +# images. Default is /boot, but you can set it to other values +export INSTALL_PATH ?= /boot + +# +# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory +# relocations required by build roots. This is not defined in the +# makefile but the argument can be passed to make if needed. +# + +MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) +export MODLIB + +# +# INSTALL_MOD_STRIP, if defined, will cause modules to be +# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then +# the default option --strip-debug will be used. Otherwise, +# INSTALL_MOD_STRIP will used as the options to the strip command. + +ifdef INSTALL_MOD_STRIP +ifeq ($(INSTALL_MOD_STRIP),1) +mod_strip_cmd = $(STRIP) --strip-debug +else +mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) +endif # INSTALL_MOD_STRIP=1 +else +mod_strip_cmd = true +endif # INSTALL_MOD_STRIP +export mod_strip_cmd + + +ifeq ($(KBUILD_EXTMOD),) +#core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ + +vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ + $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ + $(net-y) $(net-m) $(libs-y) $(libs-m))) + +vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ + $(init-n) $(init-) \ + $(core-n) $(core-) $(drivers-n) $(drivers-) \ + $(net-n) $(net-) $(libs-n) $(libs-)))) + +#init-y := $(patsubst %/, %/built-in.o, $(init-y)) +#core-y := $(patsubst %/, %/built-in.o, $(core-y)) +#drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) +#net-y := $(patsubst %/, %/built-in.o, $(net-y)) +#libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) +#libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) +#libs-y := $(libs-y1) $(libs-y2) + +# Build vmlinux +# --------------------------------------------------------------------------- +# vmlinux is built from the objects selected by $(vmlinux-init) and +# $(vmlinux-main). Most are built-in.o files from top-level directories +# in the kernel tree, others are specified in arch/$(ARCH)Makefile. +# Ordering when linking is important, and $(vmlinux-init) must be first. +# +# vmlinux +# ^ +# | +# +-< $(vmlinux-init) +# | +--< init/version.o + more +# | +# +--< $(vmlinux-main) +# | +--< driver/built-in.o mm/built-in.o + more +# | +# +-< kallsyms.o (see description in CONFIG_KALLSYMS section) +# +# vmlinux version (uname -v) cannot be updated during normal +# descending-into-subdirs phase since we do not yet know if we need to +# update vmlinux. +# Therefore this step is delayed until just before final link of vmlinux - +# except in the kallsyms case where it is done just before adding the +# symbols to the kernel. +# +# System.map is generated to document addresses of all kernel symbols + +vmlinux-init := $(head-y) $(init-y) +vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) +vmlinux-all := $(vmlinux-init) $(vmlinux-main) +vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds + +# Rule to link vmlinux - also used during CONFIG_KALLSYMS +# May be overridden by arch/$(ARCH)/Makefile +quiet_cmd_vmlinux__ ?= LD $@ + cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ + -T $(vmlinux-lds) $(vmlinux-init) \ + --start-group $(vmlinux-main) --end-group \ + $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^) + +# Generate new vmlinux version +quiet_cmd_vmlinux_version = GEN .version + cmd_vmlinux_version = set -e; \ + if [ ! -r .version ]; then \ + rm -f .version; \ + echo 1 >.version; \ + else \ + mv .version .old_version; \ + expr 0$$(cat .old_version) + 1 >.version; \ + fi; \ + $(MAKE) $(build)=init + +# Generate System.map +quiet_cmd_sysmap = SYSMAP + cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap + +# Link of vmlinux +# If CONFIG_KALLSYMS is set .version is already updated +# Generate System.map and verify that the content is consistent +# Use + in front of the vmlinux_version rule to silent warning with make -j2 +# First command is ':' to allow us to use + in front of the rule +define rule_vmlinux__ + : + $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) + + $(call cmd,vmlinux__) + $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd + + $(Q)$(if $($(quiet)cmd_sysmap), \ + echo ' $($(quiet)cmd_sysmap) System.map' &&) \ + $(cmd_sysmap) $@ System.map; \ + if [ $$? -ne 0 ]; then \ + rm -f $@; \ + /bin/false; \ + fi; + $(verify_kallsyms) +endef + + +ifdef CONFIG_KALLSYMS +# Generate section listing all symbols and add it into vmlinux $(kallsyms.o) +# It's a three stage process: +# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is +# empty +# Running kallsyms on that gives us .tmp_kallsyms1.o with +# the right size - vmlinux version (uname -v) is updated during this step +# o .tmp_vmlinux2 now has a __kallsyms section of the right size, +# but due to the added section, some addresses have shifted. +# From here, we generate a correct .tmp_kallsyms2.o +# o The correct .tmp_kallsyms2.o is linked into the final vmlinux. +# o Verify that the System.map from vmlinux matches the map from +# .tmp_vmlinux2, just in case we did not generate kallsyms correctly. +# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using +# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a +# temporary bypass to allow the kernel to be built while the +# maintainers work out what went wrong with kallsyms. + +ifdef CONFIG_KALLSYMS_EXTRA_PASS +last_kallsyms := 3 +else +last_kallsyms := 2 endif -ifeq ($(CPU),bf533) -OBJS += cpu/$(CPU)/start1.o cpu/$(CPU)/interrupt.o cpu/$(CPU)/cache.o -OBJS += cpu/$(CPU)/cplbhdlr.o cpu/$(CPU)/cplbmgr.o cpu/$(CPU)/flush.o + +kallsyms.o := .tmp_kallsyms$(last_kallsyms).o + +define verify_kallsyms + $(Q)$(if $($(quiet)cmd_sysmap), \ + echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ + $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map + $(Q)cmp -s System.map .tmp_System.map || \ + (echo Inconsistent kallsyms data; \ + echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ + rm .tmp_kallsyms* ; /bin/false ) +endef + +# Update vmlinux version before link +# Use + in front of this rule to silent warning about make -j1 +# First command is ':' to allow us to use + in front of this rule +cmd_ksym_ld = $(cmd_vmlinux__) +define rule_ksym_ld + : + +$(call cmd,vmlinux_version) + $(call cmd,vmlinux__) + $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd +endef + +# Generate .S file with all kernel symbols +quiet_cmd_kallsyms = KSYM $@ + cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ + $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ + +.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE + $(call if_changed_dep,as_o_S) + +.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) + $(call cmd,kallsyms) + +# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version +.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE + $(call if_changed_rule,ksym_ld) + +.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE + $(call if_changed,vmlinux__) + +.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE + $(call if_changed,vmlinux__) + +# Needs to visit scripts/ before $(KALLSYMS) can be used. +$(KALLSYMS): scripts ; + +# Generate some data for debugging strange kallsyms problems +debug_kallsyms: .tmp_map$(last_kallsyms) + +.tmp_map%: .tmp_vmlinux% FORCE + ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ + +.tmp_map3: .tmp_map2 + +.tmp_map2: .tmp_map1 + +endif # ifdef CONFIG_KALLSYMS + +# vmlinux image - including updated kernel symbols +vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE +ifdef CONFIG_HEADERS_CHECK + $(Q)$(MAKE) -f $(srctree)/Makefile headers_check endif + $(call if_changed_rule,vmlinux__) + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ + $(Q)rm -f .old_version + +# The actual objects are generated when descending, +# make sure no implicit rule kicks in +$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; -OBJS := $(addprefix $(obj),$(OBJS)) +# Handle descending into subdirectories listed in $(vmlinux-dirs) +# Preset locale variables to speed up the build process. Limit locale +# tweaks to this spot to avoid wrong language settings when running +# make menuconfig etc. +# Error messages still appears in the original language -LIBS = lib_generic/libgeneric.a -LIBS += board/$(BOARDDIR)/lib$(BOARD).a -LIBS += cpu/$(CPU)/lib$(CPU).a -ifdef SOC -LIBS += cpu/$(CPU)/$(SOC)/lib$(SOC).a +PHONY += $(vmlinux-dirs) +$(vmlinux-dirs): prepare scripts + $(Q)$(MAKE) $(build)=$@ + +# Build the kernel release string +# +# The KERNELRELEASE value built here is stored in the file +# include/config/kernel.release, and is used when executing several +# make targets, such as "make install" or "make modules_install." +# +# The eventual kernel release string consists of the following fields, +# shown in a hierarchical format to show how smaller parts are concatenated +# to form the larger and final value, with values coming from places like +# the Makefile, kernel config options, make command line options and/or +# SCM tag information. +# +# $(KERNELVERSION) +# $(VERSION) eg, 2 +# $(PATCHLEVEL) eg, 6 +# $(SUBLEVEL) eg, 18 +# $(EXTRAVERSION) eg, -rc6 +# $(localver-full) +# $(localver) +# localversion* (all localversion* files) +# $(CONFIG_LOCALVERSION) (from kernel config setting) +# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) +# ./scripts/setlocalversion (SCM tag, if one exists) +# $(LOCALVERSION) (from make command line if provided) +# +# Note how the final $(localver-auto) string is included *only* if the +# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the +# moment, only git is supported but other SCMs can edit the script +# scripts/setlocalversion and add the appropriate checks as needed. + +nullstring := +space := $(nullstring) # end of line + +___localver = $(objtree)/localversion* $(srctree)/localversion* +__localver = $(sort $(wildcard $(___localver))) +# skip backup files (containing '~') +_localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f))) + +localver = $(subst $(space),, \ + $(shell cat /dev/null $(_localver)) \ + $(patsubst "%",%,$(CONFIG_LOCALVERSION))) + +# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called +# and if the SCM is know a tag from the SCM is appended. +# The appended tag is determined by the SCM used. +# +# Currently, only git is supported. +# Other SCMs can edit scripts/setlocalversion and add the appropriate +# checks as needed. +ifdef CONFIG_LOCALVERSION_AUTO + _localver-auto = $(shell $(CONFIG_SHELL) \ + $(srctree)/scripts/setlocalversion $(srctree)) + localver-auto = $(LOCALVERSION)$(_localver-auto) endif -LIBS += lib_$(ARCH)/lib$(ARCH).a -LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \ - fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a -LIBS += net/libnet.a -LIBS += disk/libdisk.a -LIBS += rtc/librtc.a -LIBS += dtt/libdtt.a -LIBS += drivers/libdrivers.a -LIBS += drivers/nand/libnand.a -LIBS += drivers/nand_legacy/libnand_legacy.a -ifeq ($(CPU),mpc83xx) -LIBS += drivers/qe/qe.a + +localver-full = $(localver)$(localver-auto) + +# Store (new) KERNELRELASE string in include/config/kernel.release +kernelrelease = $(KERNELVERSION)$(localver-full) +include/config/kernel.release: include/config/auto.conf FORCE + $(Q)rm -f $@ + $(Q)echo $(kernelrelease) > $@ + + +# Things we need to do before we recursively start building the kernel +# or the modules are listed in "prepare". +# A multi level approach is used. prepareN is processed before prepareN-1. +# archprepare is used in arch Makefiles and when processed asm symlink, +# version.h and scripts_basic is processed / created. + +# Listed in dependency order +PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 + +# prepare-all is deprecated, use prepare as valid replacement +PHONY += prepare-all + +# prepare3 is used to check if we are building in a separate output directory, +# and if so do: +# 1) Check that make has not been executed in the kernel src $(srctree) +# 2) Create the include2 directory, used for the second asm symlink +prepare3: include/config/kernel.release +ifneq ($(KBUILD_SRC),) + @echo ' Using $(srctree) as source for kernel' + $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ + echo " $(srctree) is not clean, please run 'make mrproper'";\ + echo " in the '$(srctree)' directory.";\ + /bin/false; \ + fi; + $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi; + $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm endif -LIBS += drivers/sk98lin/libsk98lin.a -LIBS += post/libpost.a post/cpu/libcpu.a -LIBS += common/libcommon.a -LIBS += $(BOARDLIBS) - -LIBS := $(addprefix $(obj),$(LIBS)) -.PHONY : $(LIBS) - -# Add GCC lib -PLATFORM_LIBS += -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc - -# The "tools" are needed early, so put this first -# Don't include stuff already done in $(LIBS) -SUBDIRS = tools \ - examples \ - post \ - post/cpu -.PHONY : $(SUBDIRS) - -ifeq ($(CONFIG_NAND_U_BOOT),y) -NAND_SPL = nand_spl -U_BOOT_NAND = $(obj)u-boot-nand.bin + +# prepare2 creates a makefile if using a separate output directory +prepare2: prepare3 outputmakefile + +prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ + include/asm include/config/auto.conf +ifneq ($(KBUILD_MODULES),) + $(Q)mkdir -p $(MODVERDIR) + $(Q)rm -f $(MODVERDIR)/* endif -__OBJS := $(subst $(obj),,$(OBJS)) -__LIBS := $(subst $(obj),,$(LIBS)) +archprepare: prepare1 scripts_basic -######################################################################### -######################################################################### +prepare0: archprepare FORCE + $(Q)$(MAKE) $(build)=. -ALL = $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map $(U_BOOT_NAND) +# All the preparing.. +prepare prepare-all: prepare0 -all: $(ALL) +# Leave this as default for preprocessing vmlinux.lds.S, which is now +# done in arch/$(ARCH)/kernel/Makefile -$(obj)u-boot.hex: $(obj)u-boot - $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ +export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) -$(obj)u-boot.srec: $(obj)u-boot - $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ +# FIXME: The asm symlink changes when $(ARCH) changes. That's +# hard to detect, but I suppose "make mrproper" is a good idea +# before switching between archs anyway. -$(obj)u-boot.bin: $(obj)u-boot - $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ +include/asm: + @echo ' SYMLINK $@ -> include/asm-$(ARCH)' + $(Q)if [ ! -d include ]; then mkdir -p include; fi; + @ln -fsn asm-$(ARCH) $@ -$(obj)u-boot.img: $(obj)u-boot.bin - ./tools/mkimage -A $(ARCH) -T firmware -C none \ - -a $(TEXT_BASE) -e 0 \ - -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \ - sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \ - -d $< $@ +# Generate some files +# --------------------------------------------------------------------------- -$(obj)u-boot.dis: $(obj)u-boot - $(OBJDUMP) -d $< > $@ +# KERNELRELEASE can change from a few different places, meaning version.h +# needs to be updated, so this check is forced on all builds -$(obj)u-boot: depend version $(SUBDIRS) $(OBJS) $(LIBS) $(LDSCRIPT) - UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) |sed -n -e 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ - cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \ - --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \ - -Map u-boot.map -o u-boot +uts_len := 64 +define filechk_utsrelease.h + if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ + echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ + exit 1; \ + fi; \ + (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) +endef -$(OBJS): - $(MAKE) -C cpu/$(CPU) $(if $(REMOTE_BUILD),$@,$(notdir $@)) +define filechk_version.h + (echo \#define LINUX_VERSION_CODE $(shell \ + expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ + echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) +endef -$(LIBS): - $(MAKE) -C $(dir $(subst $(obj),,$@)) +include/linux/version.h: $(srctree)/Makefile FORCE + $(call filechk,version.h) -$(SUBDIRS): - $(MAKE) -C $@ all +include/linux/utsrelease.h: include/config/kernel.release FORCE + $(call filechk,utsrelease.h) -$(NAND_SPL): version - $(MAKE) -C nand_spl/board/$(BOARDDIR) all +# --------------------------------------------------------------------------- -$(U_BOOT_NAND): $(NAND_SPL) $(obj)u-boot.bin - cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin +PHONY += depend dep +depend dep: + @echo '*** Warning: make $@ is unnecessary now.' -version: - @echo -n "#define U_BOOT_VERSION \"U-Boot " > $(VERSION_FILE); \ - echo -n "$(U_BOOT_VERSION)" >> $(VERSION_FILE); \ - echo -n $(shell $(CONFIG_SHELL) $(TOPDIR)/tools/setlocalversion \ - $(TOPDIR)) >> $(VERSION_FILE); \ - echo "\"" >> $(VERSION_FILE) +# --------------------------------------------------------------------------- +# Kernel headers +INSTALL_HDR_PATH=$(objtree)/usr +export INSTALL_HDR_PATH -gdbtools: - $(MAKE) -C tools/gdb all || exit 1 +HDRARCHES=$(filter-out generic,$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild))) -updater: - $(MAKE) -C tools/updater all || exit 1 +PHONY += headers_install_all +headers_install_all: include/linux/version.h scripts_basic FORCE + $(Q)$(MAKE) $(build)=scripts scripts/unifdef + $(Q)for arch in $(HDRARCHES); do \ + $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\ + done -env: - $(MAKE) -C tools/env all || exit 1 +PHONY += headers_install +headers_install: include/linux/version.h scripts_basic FORCE + @if [ ! -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \ + echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \ + exit 1 ; fi + $(Q)$(MAKE) $(build)=scripts scripts/unifdef + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include -depend dep: - for dir in $(SUBDIRS) ; do $(MAKE) -C $$dir _depend ; done - -tags ctags: - ctags -w -o $(OBJTREE)/ctags `find $(SUBDIRS) include \ - lib_generic board/$(BOARDDIR) cpu/$(CPU) lib_$(ARCH) \ - fs/cramfs fs/fat fs/fdos fs/jffs2 \ - net disk rtc dtt drivers drivers/sk98lin common \ - \( -name CVS -prune \) -o \( -name '*.[ch]' -print \)` - -etags: - etags -a -o $(OBJTREE)/etags `find $(SUBDIRS) include \ - lib_generic board/$(BOARDDIR) cpu/$(CPU) lib_$(ARCH) \ - fs/cramfs fs/fat fs/fdos fs/jffs2 \ - net disk rtc dtt drivers drivers/sk98lin common \ - \( -name CVS -prune \) -o \( -name '*.[ch]' -print \)` - -$(obj)System.map: $(obj)u-boot - @$(NM) $< | \ - grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ - sort > $(obj)System.map - -######################################################################### -else -all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin \ -$(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot \ -$(SUBDIRS) version gdbtools updater env depend \ -dep tags ctags etags $(obj)System.map: - @echo "System not configured - see README" >&2 - @ exit 1 -endif +PHONY += headers_check +headers_check: headers_install + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include HDRCHECK=1 -.PHONY : CHANGELOG -CHANGELOG: - git log --no-merges U-Boot-1_1_5.. | \ - unexpand -a | sed -e 's/\s\s*$$//' > $@ - -######################################################################### - -unconfig: - @rm -f $(obj)include/config.h $(obj)include/config.mk \ - $(obj)board/*/config.tmp $(obj)board/*/*/config.tmp - -#======================================================================== -# PowerPC -#======================================================================== - -######################################################################### -## MPC5xx Systems -######################################################################### - -canmb_config: unconfig - @$(MKCONFIG) -a canmb ppc mpc5xxx canmb - -PATI_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc5xx pati mpl - -######################################################################### -## MPC5xxx Systems -######################################################################### - -aev_config: unconfig - @$(MKCONFIG) -a aev ppc mpc5xxx tqm5200 - -BC3450_config: unconfig - @$(MKCONFIG) -a BC3450 ppc mpc5xxx bc3450 - -hmi1001_config: unconfig - @$(MKCONFIG) hmi1001 ppc mpc5xxx hmi1001 - -v38b_config: unconfig - @./mkconfig -a v38b ppc mpc5xxx v38b - -mcc200_config \ -mcc200_SDRAM_config \ -mcc200_highboot_config \ -mcc200_COM12_config \ -mcc200_COM12_SDRAM_config \ -mcc200_COM12_highboot_config \ -mcc200_COM12_highboot_SDRAM_config \ -mcc200_highboot_SDRAM_config \ -prs200_config \ -prs200_DDR_config \ -prs200_highboot_config \ -prs200_highboot_DDR_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)board/mcc200 - @ >$(obj)include/config.h - @[ -n "$(findstring highboot,$@)" ] || \ - { echo "... with lowboot configuration" ; \ - } - @[ -z "$(findstring highboot,$@)" ] || \ - { echo "TEXT_BASE = 0xFFF00000" >$(obj)board/mcc200/config.tmp ; \ - echo "... with highboot configuration" ; \ - } - @[ -n "$(findstring _SDRAM,$@)" ] || \ - { if [ -n "$(findstring mcc200,$@)" ]; \ - then \ - echo "... with DDR" ; \ - else \ - if [ -n "$(findstring _DDR,$@)" ];\ - then \ - echo "... with DDR" ; \ - else \ - echo "#define CONFIG_MCC200_SDRAM" >>$(obj)include/config.h ;\ - echo "... with SDRAM" ; \ - fi; \ - fi; \ - } - @[ -z "$(findstring _SDRAM,$@)" ] || \ - { echo "#define CONFIG_MCC200_SDRAM" >>$(obj)include/config.h ; \ - echo "... with SDRAM" ; \ - } - @[ -z "$(findstring COM12,$@)" ] || \ - { echo "#define CONFIG_CONSOLE_COM12" >>$(obj)include/config.h ; \ - echo "... with console on COM12" ; \ - } - @[ -z "$(findstring prs200,$@)" ] || \ - { echo "#define CONFIG_PRS200" >>$(obj)include/config.h ;\ - } - @$(MKCONFIG) -n $@ -a mcc200 ppc mpc5xxx mcc200 - -smmaco4_config: unconfig - @$(MKCONFIG) -a smmaco4 ppc mpc5xxx tqm5200 - -spieval_config: unconfig - @$(MKCONFIG) -a spieval ppc mpc5xxx tqm5200 - -TB5200_B_config \ -TB5200_config: unconfig - @mkdir -p $(obj)include - @[ -z "$(findstring _B,$@)" ] || \ - { echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; \ - echo "... with MPC5200B processor" ; \ - } - @$(MKCONFIG) -n $@ -a TB5200 ppc mpc5xxx tqm5200 - -MINI5200_config \ -EVAL5200_config \ -TOP5200_config: unconfig - @mkdir -p $(obj)include - @ echo "#define CONFIG_$(@:_config=) 1" >$(obj)include/config.h - @$(MKCONFIG) -n $@ -a TOP5200 ppc mpc5xxx top5200 emk - -Total5100_config \ -Total5200_config \ -Total5200_lowboot_config \ -Total5200_Rev2_config \ -Total5200_Rev2_lowboot_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)board/total5200 - @ >$(obj)include/config.h - @[ -z "$(findstring 5100,$@)" ] || \ - { echo "#define CONFIG_MGT5100" >>$(obj)include/config.h ; \ - echo "... with MGT5100 processor" ; \ - } - @[ -z "$(findstring 5200,$@)" ] || \ - { echo "#define CONFIG_MPC5200" >>$(obj)include/config.h ; \ - echo "... with MPC5200 processor" ; \ - } - @[ -n "$(findstring Rev,$@)" ] || \ - { echo "#define CONFIG_TOTAL5200_REV 1" >>$(obj)include/config.h ; \ - echo "... revision 1 board" ; \ - } - @[ -z "$(findstring Rev2_,$@)" ] || \ - { echo "#define CONFIG_TOTAL5200_REV 2" >>$(obj)include/config.h ; \ - echo "... revision 2 board" ; \ - } - @[ -z "$(findstring lowboot_,$@)" ] || \ - { echo "TEXT_BASE = 0xFE000000" >$(obj)board/total5200/config.tmp ; \ - echo "... with lowboot configuration" ; \ - } - @$(MKCONFIG) -a Total5200 ppc mpc5xxx total5200 - -cam5200_config \ -fo300_config \ -MiniFAP_config \ -TQM5200S_config \ -TQM5200S_HIGHBOOT_config \ -TQM5200_B_config \ -TQM5200_B_HIGHBOOT_config \ -TQM5200_config \ -TQM5200_STK100_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)board/tqm5200 - @ >$(obj)include/config.h - @[ -z "$(findstring cam5200,$@)" ] || \ - { echo "#define CONFIG_CAM5200" >>$(obj)include/config.h ; \ - echo "#define CONFIG_TQM5200S" >>$(obj)include/config.h ; \ - echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; \ - echo "... TQM5200S on Cam5200" ; \ - } - @[ -z "$(findstring fo300,$@)" ] || \ - { echo "#define CONFIG_FO300" >>$(obj)include/config.h ; \ - echo "... TQM5200 on FO300" ; \ - } - @[ -z "$(findstring MiniFAP,$@)" ] || \ - { echo "#define CONFIG_MINIFAP" >>$(obj)include/config.h ; \ - echo "... TQM5200_AC on MiniFAP" ; \ - } - @[ -z "$(findstring STK100,$@)" ] || \ - { echo "#define CONFIG_STK52XX_REV100" >>$(obj)include/config.h ; \ - echo "... on a STK52XX.100 base board" ; \ - } - @[ -z "$(findstring TQM5200_B,$@)" ] || \ - { echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; \ - } - @[ -z "$(findstring TQM5200S,$@)" ] || \ - { echo "#define CONFIG_TQM5200S" >>$(obj)include/config.h ; \ - echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; \ - } - @[ -z "$(findstring HIGHBOOT,$@)" ] || \ - { echo "TEXT_BASE = 0xFFF00000" >$(obj)board/tqm5200/config.tmp ; \ - } - @$(MKCONFIG) -n $@ -a TQM5200 ppc mpc5xxx tqm5200 - -######################################################################### -## MPC8xx Systems -######################################################################### - -Adder_config \ -Adder87x_config \ -AdderII_config \ - : unconfig - @mkdir -p $(obj)include - $(if $(findstring AdderII,$@), \ - @echo "#define CONFIG_MPC852T" > $(obj)include/config.h) - @$(MKCONFIG) -a Adder ppc mpc8xx adder - -EP88x_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx ep88x - -xtract_ICU862 = $(subst _100MHz,,$(subst _config,,$1)) - -KUP4K_config : unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx kup4k kup - -KUP4X_config : unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx kup4x kup - -quantum_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx quantum - -spc1920_config: - @$(MKCONFIG) $(@:_config=) ppc mpc8xx spc1920 - -stxxtc_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx stxxtc - -# EMK MPC8xx based modules -TOP860_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx top860 emk - -# Play some tricks for configuration selection -# Only 855 and 860 boards may come with FEC -# and only 823 boards may have LCD support -xtract_8xx = $(subst _LCD,,$(subst _config,,$1)) - -uc100_config : unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8xx uc100 - -######################################################################### -## PPC4xx Systems -######################################################################### -xtract_4xx = $(subst _25,,$(subst _33,,$(subst _BA,,$(subst _ME,,$(subst _HI,,$(subst _config,,$1)))))) - -alpr_config: unconfig - @./mkconfig $(@:_config=) ppc ppc4xx alpr prodrive - -csb272_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx csb272 - -csb472_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx csb472 - -KAREF_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx karef sandburst - -METROBOX_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx metrobox sandburst - -MIP405_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx mip405 mpl - -MIP405T_config: unconfig - @mkdir -p $(obj)include - @echo "#define CONFIG_MIP405T" >$(obj)include/config.h - @echo "Enable subset config for MIP405T" - @$(MKCONFIG) -a MIP405 ppc ppc4xx mip405 mpl - -ml300_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx ml300 xilinx - -p3p440_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx p3p440 prodrive - -PIP405_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx pip405 mpl - -PMC405_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx pmc405 esd - -rainier_config: unconfig - @mkdir -p $(obj)include - @echo "#define CONFIG_RAINIER" > $(obj)include/config.h - @echo "Configuring for rainier board as subset of sequoia..." - @$(MKCONFIG) -a sequoia ppc ppc4xx sequoia amcc - -rainier_nand_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)nand_spl - @mkdir -p $(obj)board/amcc/sequoia - @echo "#define CONFIG_RAINIER" > $(obj)include/config.h - @echo "Configuring for rainier board as subset of sequoia..." - @echo "#define CONFIG_NAND_U_BOOT" >> $(obj)include/config.h - @echo "Compile NAND boot image for sequoia" - @$(MKCONFIG) -a sequoia ppc ppc4xx sequoia amcc - @echo "TEXT_BASE = 0x01000000" > $(obj)board/amcc/sequoia/config.tmp - @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk +# --------------------------------------------------------------------------- +# Modules -sequoia_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx sequoia amcc +ifdef CONFIG_MODULES -sequoia_nand_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)nand_spl - @mkdir -p $(obj)board/amcc/sequoia - @echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h - @echo "Compile NAND boot image for sequoia" - @$(MKCONFIG) -a sequoia ppc ppc4xx sequoia amcc - @echo "TEXT_BASE = 0x01000000" > $(obj)board/amcc/sequoia/config.tmp - @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk +# By default, build modules as well -yosemite_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx yosemite amcc +all: modules -yellowstone_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc ppc4xx yellowstone amcc +# Build modules -######################################################################### -## MPC8220 Systems -######################################################################### +PHONY += modules +modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) + @echo ' Building modules, stage 2.'; + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost -sorcery_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8220 sorcery -######################################################################### -## MPC824x Systems -######################################################################### -xtract_82xx = $(subst _BIGFLASH,,$(subst _ROMBOOT,,$(subst _L2,,$(subst _266MHz,,$(subst _300MHz,,$(subst _config,,$1)))))) - -eXalion_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc824x eXalion - -kvme080_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc824x kvme080 etin - -PN62_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc824x pn62 - -######################################################################### -## MPC8260 Systems -######################################################################### - -ep8248_config \ -ep8248E_config : unconfig - @$(MKCONFIG) ep8248 ppc mpc8260 ep8248 - -ep82xxm_config: unconfig - @./mkconfig $(@:_config=) ppc mpc8260 ep82xxm - -ISPAN_config \ -ISPAN_REVB_config: unconfig - @mkdir -p $(obj)include - @if [ "$(findstring _REVB_,$@)" ] ; then \ - echo "#define CFG_REV_B" > $(obj)include/config.h ; \ - fi - @$(MKCONFIG) -a ISPAN ppc mpc8260 ispan - -Rattler8248_config \ -Rattler_config: unconfig - @mkdir -p $(obj)include - $(if $(findstring 8248,$@), \ - @echo "#define CONFIG_MPC8248" > $(obj)include/config.h) - @$(MKCONFIG) -a Rattler ppc mpc8260 rattler - -TQM8272_config: unconfig - @$(MKCONFIG) -a TQM8272 ppc mpc8260 tqm8272 - -ZPC1900_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc8260 zpc1900 - -######################################################################### -## Coldfire -######################################################################### - -M5271EVB_config : unconfig - @$(MKCONFIG) $(@:_config=) m68k mcf52x2 m5271evb - -r5200_config : unconfig - @$(MKCONFIG) $(@:_config=) m68k mcf52x2 r5200 - -######################################################################### -## MPC83xx Systems -######################################################################### - -TQM834x_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc83xx tqm834x - -MPC8349EMDS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc83xx mpc8349emds - -MPC8360EMDS_config \ -MPC8360EMDS_HOST_33_config \ -MPC8360EMDS_HOST_66_config \ -MPC8360EMDS_SLAVE_config: unconfig - @echo "" >include/config.h ; \ - if [ "$(findstring _HOST_,$@)" ] ; then \ - echo -n "... PCI HOST " ; \ - echo "#define CONFIG_PCI" >>include/config.h ; \ - fi ; \ - if [ "$(findstring _SLAVE_,$@)" ] ; then \ - echo "...PCI SLAVE 66M" ; \ - echo "#define CONFIG_PCI" >>include/config.h ; \ - echo "#define CONFIG_PCISLAVE" >>include/config.h ; \ - fi ; \ - if [ "$(findstring _33_,$@)" ] ; then \ - echo -n "...33M ..." ; \ - echo "#define PCI_33M" >>include/config.h ; \ - fi ; \ - if [ "$(findstring _66_,$@)" ] ; then \ - echo -n "...66M..." ; \ - echo "#define PCI_66M" >>include/config.h ; \ - fi ; - @$(MKCONFIG) -a MPC8360EMDS ppc mpc83xx mpc8360emds - -MPC8349ITX_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc83xx mpc8349itx - -######################################################################### -## MPC85xx Systems -######################################################################### - -MPC8540ADS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx mpc8540ads - -MPC8560ADS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx mpc8560ads - -MPC8541CDS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx mpc8541cds cds - -MPC8548CDS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx mpc8548cds cds - -MPC8555CDS_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx mpc8555cds cds - -PM854_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx pm854 - -PM856_config: unconfig - @$(MKCONFIG) $(@:_config=) ppc mpc85xx pm856 - -sbc8540_config \ -sbc8540_33_config \ -sbc8540_66_config: unconfig - @mkdir -p $(obj)include - @if [ "$(findstring _66_,$@)" ] ; then \ - echo "#define CONFIG_PCI_66" >>$(obj)include/config.h ; \ - echo "... 66 MHz PCI" ; \ - else \ - >$(obj)include/config.h ; \ - echo "... 33 MHz PCI" ; \ +# Target to prepare building external modules +PHONY += modules_prepare +modules_prepare: prepare scripts + +# Target to install modules +PHONY += modules_install +modules_install: _modinst_ _modinst_post + +PHONY += _modinst_ +_modinst_: + @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ + echo "Warning: you may need to install module-init-tools"; \ + echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ + sleep 1; \ fi - @$(MKCONFIG) -a SBC8540 ppc mpc85xx sbc8560 - -sbc8560_config \ -sbc8560_33_config \ -sbc8560_66_config: unconfig - @mkdir -p $(obj)include - @if [ "$(findstring _66_,$@)" ] ; then \ - echo "#define CONFIG_PCI_66" >>$(obj)include/config.h ; \ - echo "... 66 MHz PCI" ; \ - else \ - >$(obj)include/config.h ; \ - echo "... 33 MHz PCI" ; \ + @rm -rf $(MODLIB)/kernel + @rm -f $(MODLIB)/source + @mkdir -p $(MODLIB)/kernel + @ln -s $(srctree) $(MODLIB)/source + @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ + rm -f $(MODLIB)/build ; \ + ln -s $(objtree) $(MODLIB)/build ; \ fi - @$(MKCONFIG) -a sbc8560 ppc mpc85xx sbc8560 - -TQM8540_config \ -TQM8541_config \ -TQM8555_config \ -TQM8560_config: unconfig - @mkdir -p $(obj)include - @CTYPE=$(subst TQM,,$(@:_config=)); \ - >$(obj)include/config.h ; \ - echo "... TQM"$${CTYPE}; \ - echo "#define CONFIG_MPC$${CTYPE}">>$(obj)include/config.h; \ - echo "#define CONFIG_TQM$${CTYPE}">>$(obj)include/config.h; \ - echo "#define CONFIG_HOSTNAME tqm$${CTYPE}">>$(obj)include/config.h; \ - echo "#define CONFIG_BOARDNAME \"TQM$${CTYPE}\"">>$(obj)include/config.h; \ - echo "#define CFG_BOOTFILE \"bootfile=/tftpboot/tqm$${CTYPE}/uImage\0\"">>$(obj)include/config.h - @$(MKCONFIG) -a TQM85xx ppc mpc85xx tqm85xx - -######################################################################### -## MPC86xx Systems -######################################################################### - -MPC8641HPCN_config: unconfig - @./mkconfig $(@:_config=) ppc mpc86xx mpc8641hpcn - - -######################################################################### -## 74xx/7xx Systems -######################################################################### - -CPCI750_config: unconfig - @$(MKCONFIG) CPCI750 ppc 74xx_7xx cpci750 esd - -DB64360_config: unconfig - @$(MKCONFIG) DB64360 ppc 74xx_7xx db64360 Marvell - -DB64460_config: unconfig - @$(MKCONFIG) DB64460 ppc 74xx_7xx db64460 Marvell - -p3m750_config \ -p3m7448_config: unconfig - @mkdir -p $(obj)include - @if [ "$(findstring 750_,$@)" ] ; then \ - echo "#define CONFIG_P3M750" >>$(obj)include/config.h ; \ - else \ - echo "#define CONFIG_P3M7448" >>$(obj)include/config.h ; \ - fi - @$(MKCONFIG) -a p3mx ppc 74xx_7xx p3mx prodrive - -#======================================================================== -# ARM -#======================================================================== -######################################################################### -## StrongARM Systems -######################################################################### - -assabet_config : unconfig - @$(MKCONFIG) $(@:_config=) arm sa1100 assabet - -######################################################################### -## ARM92xT Systems -######################################################################### - -xtract_omap1610xxx = $(subst _cs0boot,,$(subst _cs3boot,,$(subst _cs_autoboot,,$(subst _config,,$1)))) - -csb637_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm920t csb637 NULL at91rm9200 - - -######################################################################## -## ARM Integrator boards - see doc/README-integrator for more info. -integratorap_config \ -ap_config \ -ap966_config \ -ap922_config \ -ap922_XA10_config \ -ap7_config \ -ap720t_config \ -ap920t_config \ -ap926ejs_config \ -ap946es_config: unconfig - @board/integratorap/split_by_variant.sh $@ - -integratorcp_config \ -cp_config \ -cp920t_config \ -cp926ejs_config \ -cp946es_config \ -cp1136_config \ -cp966_config \ -cp922_config \ -cp922_XA10_config \ -cp1026_config: unconfig - @board/integratorcp/split_by_variant.sh $@ - -kb9202_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm920t kb9202 NULL at91rm9200 - -mx1ads_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm920t mx1ads NULL imx - -omap1510inn_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm925t omap1510inn - -omap5912osk_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm926ejs omap5912osk NULL omap - -SX1_config : unconfig - @$(MKCONFIG) $(@:_config=) arm arm925t sx1 - -#======================================================================== -# ARM supplied Versatile development boards -#======================================================================== -versatile_config \ -versatileab_config \ -versatilepb_config : unconfig - @board/versatile/split_by_variant.sh $@ - -voiceblue_smallflash_config \ -voiceblue_config: unconfig - @mkdir -p $(obj)include - @mkdir -p $(obj)board/voiceblue - @if [ "$(findstring _smallflash_,$@)" ] ; then \ - echo "... boot from lower flash bank" ; \ - echo "#define VOICEBLUE_SMALL_FLASH" >>$(obj)include/config.h ; \ - echo "VOICEBLUE_SMALL_FLASH=y" >$(obj)board/voiceblue/config.tmp ; \ + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst + +# If System.map exists, run depmod. This deliberately does not have a +# dependency on System.map since that would run the dependency tree on +# vmlinux. This depmod is only for convenience to give the initial +# boot a modules.dep even before / is mounted read-write. However the +# boot script depmod is the master version. +ifeq "$(strip $(INSTALL_MOD_PATH))" "" +depmod_opts := +else +depmod_opts := -b $(INSTALL_MOD_PATH) -r +endif +PHONY += _modinst_post +_modinst_post: _modinst_ + if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi + +else # CONFIG_MODULES + +# Modules not configured +# --------------------------------------------------------------------------- + +modules modules_install: FORCE + @echo + @echo "The present kernel configuration has modules disabled." + @echo "Type 'make config' and enable loadable module support." + @echo "Then build a kernel with module support enabled." + @echo + @exit 1 + +endif # CONFIG_MODULES + +### +# Cleaning is done on three levels. +# make clean Delete most generated files +# Leave enough to build external modules +# make mrproper Delete the current configuration, and all generated files +# make distclean Remove editor backup files, patch leftover files and the like + +# Directories & files removed with 'make clean' +CLEAN_DIRS += $(MODVERDIR) +CLEAN_FILES += vmlinux System.map \ + .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map + +# Directories & files removed with 'make mrproper' +MRPROPER_DIRS += include/config include2 usr/include +MRPROPER_FILES += .config .config.old include/asm .version .old_version \ + include/linux/autoconf.h include/linux/version.h \ + include/linux/utsrelease.h \ + Module.symvers tags TAGS cscope* + +# clean - Delete most, but leave enough to build external modules +# +clean: rm-dirs := $(CLEAN_DIRS) +clean: rm-files := $(CLEAN_FILES) +clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs)) + +PHONY += $(clean-dirs) clean archclean +$(clean-dirs): + $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) + +clean: archclean $(clean-dirs) + $(call cmd,rmdirs) + $(call cmd,rmfiles) + @find . $(RCS_FIND_IGNORE) \ + \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ + -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ + -o -name '*.symtypes' \) \ + -type f -print | xargs rm -f + +# mrproper - Delete all generated files, including .config +# +mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) +mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) +mrproper-dirs := $(addprefix _mrproper_,scripts) + +PHONY += $(mrproper-dirs) mrproper archmrproper +$(mrproper-dirs): + $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) + +mrproper: clean archmrproper $(mrproper-dirs) + $(call cmd,rmdirs) + $(call cmd,rmfiles) + +# distclean +# +PHONY += distclean + +distclean: mrproper + @find $(srctree) $(RCS_FIND_IGNORE) \ + \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ + -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ + -o -name '.*.rej' -o -size 0 \ + -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ + -type f -print | xargs rm -f + + +# Packaging of the kernel to various formats +# --------------------------------------------------------------------------- +# rpm target kept for backward compatibility +package-dir := $(srctree)/scripts/package + +%pkg: include/config/kernel.release FORCE + $(Q)$(MAKE) $(build)=$(package-dir) $@ +rpm: include/config/kernel.release FORCE + $(Q)$(MAKE) $(build)=$(package-dir) $@ + + +# Brief documentation of the typical targets used +# --------------------------------------------------------------------------- + +boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig) +boards := $(notdir $(boards)) + +help: + @echo 'Cleaning targets:' + @echo ' clean - Remove most generated files but keep the config and' + @echo ' enough build support to build external modules' + @echo ' mrproper - Remove all generated files + config + various backup files' + @echo ' distclean - mrproper + remove editor backup and patch files' + @echo '' + @echo 'Configuration targets:' + @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help + @echo '' + @echo 'Other generic targets:' + @echo ' all - Build all targets marked with [*]' + @echo '* vmlinux - Build the bare kernel' + @echo '* modules - Build all modules' + @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' + @echo ' dir/ - Build all files in dir and below' + @echo ' dir/file.[ois] - Build specified target only' + @echo ' dir/file.ko - Build module including final link' + @echo ' rpm - Build a kernel as an RPM package' + @echo ' tags/TAGS - Generate tags file for editors' + @echo ' cscope - Generate cscope index' + @echo ' kernelrelease - Output the release version string' + @echo ' kernelversion - Output the version stored in Makefile' + @if [ -r include/asm-$(ARCH)/Kbuild ]; then \ + echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ + fi + @echo ' (default: $(INSTALL_HDR_PATH))' + @echo '' + @echo 'Static analysers' + @echo ' checkstack - Generate a list of stack hogs' + @echo ' namespacecheck - Name space analysis on compiled kernel' + @if [ -r include/asm-$(ARCH)/Kbuild ]; then \ + echo ' headers_check - Sanity check on exported headers'; \ + fi + @echo '' + @echo 'Kernel packaging:' + @$(MAKE) $(build)=$(package-dir) help + @echo '' + @echo 'Documentation targets:' + @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp + @echo '' + @echo 'Architecture specific targets ($(ARCH)):' + @$(if $(archhelp),$(archhelp),\ + echo ' No architecture specific help defined for $(ARCH)') + @echo '' + @$(if $(boards), \ + $(foreach b, $(boards), \ + printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ + echo '') + + @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' + @echo ' make V=2 [targets] 2 => give reason for rebuild of target' + @echo ' make O=dir [targets] Locate all output files in "dir", including .config' + @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' + @echo ' make C=2 [targets] Force check of all c source with $$CHECK' + @echo '' + @echo 'Execute "make" or "make all" to build all targets marked with [*] ' + @echo 'For further info see the ./README file' + +else # KBUILD_EXTMOD + +### +# External module support. +# When building external modules the kernel used as basis is considered +# read-only, and no consistency checks are made and the make +# system is not used on the basis kernel. If updates are required +# in the basis kernel ordinary make commands (without M=...) must +# be used. +# +# The following are the only valid targets when building external +# modules. +# make M=dir clean Delete all automatically generated files +# make M=dir modules Make all modules in specified dir +# make M=dir Same as 'make M=dir modules' +# make M=dir modules_install +# Install the modules built in the module directory +# Assumes install directory is already created + +# We are always building modules +KBUILD_MODULES := 1 +PHONY += crmodverdir +crmodverdir: + $(Q)mkdir -p $(MODVERDIR) + $(Q)rm -f $(MODVERDIR)/* + +PHONY += $(objtree)/Module.symvers +$(objtree)/Module.symvers: + @test -e $(objtree)/Module.symvers || ( \ + echo; \ + echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ + echo " is missing; modules will have no dependencies and modversions."; \ + echo ) + +module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) +PHONY += $(module-dirs) modules +$(module-dirs): crmodverdir $(objtree)/Module.symvers + $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) + +modules: $(module-dirs) + @echo ' Building modules, stage 2.'; + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost + +PHONY += modules_install +modules_install: _emodinst_ _emodinst_post + +install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) +PHONY += _emodinst_ +_emodinst_: + $(Q)mkdir -p $(MODLIB)/$(install-dir) + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst + +# Run depmod only is we have System.map and depmod is executable +quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) + cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \ + $(DEPMOD) -ae -F System.map \ + $(if $(strip $(INSTALL_MOD_PATH)), \ + -b $(INSTALL_MOD_PATH) -r) \ + $(KERNELRELEASE); \ + fi + +PHONY += _emodinst_post +_emodinst_post: _emodinst_ + $(call cmd,depmod) + +clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) + +PHONY += $(clean-dirs) clean +$(clean-dirs): + $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) + +clean: rm-dirs := $(MODVERDIR) +clean: $(clean-dirs) + $(call cmd,rmdirs) + @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ + \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ + -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ + -type f -print | xargs rm -f + +help: + @echo ' Building external modules.' + @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' + @echo '' + @echo ' modules - default target, build the module(s)' + @echo ' modules_install - install the module' + @echo ' clean - remove generated files in module directory only' + @echo '' + +# Dummies... +PHONY += prepare scripts +prepare: ; +scripts: ; +endif # KBUILD_EXTMOD + +# Generate tags for editors +# --------------------------------------------------------------------------- + +#We want __srctree to totally vanish out when KBUILD_OUTPUT is not set +#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file. +#Adding $(srctree) adds about 20M on i386 to the size of the output file! + +ifeq ($(src),$(obj)) +__srctree = +else +__srctree = $(srctree)/ +endif + +ifeq ($(ALLSOURCE_ARCHS),) +ifeq ($(ARCH),um) +ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH) +else +ALLINCLUDE_ARCHS := $(ARCH) +endif +else +#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour. +ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) +endif + +ALLSOURCE_ARCHS := $(ARCH) + +define find-sources + ( find $(__srctree) $(RCS_FIND_IGNORE) \ + \( -name include -o -name arch \) -prune -o \ + -name $1 -print; \ + for ARCH in $(ALLSOURCE_ARCHS) ; do \ + find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \ + -name $1 -print; \ + done ; \ + find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ + -name $1 -print; \ + find $(__srctree)include $(RCS_FIND_IGNORE) \ + \( -name config -o -name 'asm-*' \) -prune \ + -o -name $1 -print; \ + for ARCH in $(ALLINCLUDE_ARCHS) ; do \ + find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \ + -name $1 -print; \ + done ; \ + find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ + -name $1 -print ) +endef + +define all-sources + $(call find-sources,'*.[chS]') +endef +define all-kconfigs + $(call find-sources,'Kconfig*') +endef +define all-defconfigs + $(call find-sources,'defconfig') +endef + +define xtags + if $1 --version 2>&1 | grep -iq exuberant; then \ + $(all-sources) | xargs $1 -a \ + -I __initdata,__exitdata,__acquires,__releases \ + -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ + --extra=+f --c-kinds=+px \ + --regex-asm='/ENTRY\(([^)]*)\).*/\1/'; \ + $(all-kconfigs) | xargs $1 -a \ + --langdef=kconfig \ + --language-force=kconfig \ + --regex-kconfig='/^[[:blank:]]*config[[:blank:]]+([[:alnum:]_]+)/\1/'; \ + $(all-defconfigs) | xargs -r $1 -a \ + --langdef=dotconfig \ + --language-force=dotconfig \ + --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \ + elif $1 --version 2>&1 | grep -iq emacs; then \ + $(all-sources) | xargs $1 -a; \ + $(all-kconfigs) | xargs $1 -a \ + --regex='/^[ \t]*config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \ + $(all-defconfigs) | xargs -r $1 -a \ + --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \ else \ - echo "... boot from upper flash bank" ; \ - >$(obj)include/config.h ; \ - echo "VOICEBLUE_SMALL_FLASH=n" >$(obj)board/voiceblue/config.tmp ; \ + $(all-sources) | xargs $1 -a; \ fi - @$(MKCONFIG) -a voiceblue arm arm925t voiceblue - -######################################################################### -## S3C44B0 Systems -######################################################################### - -######################################################################### -## ARM720T Systems -######################################################################### - -######################################################################### -## XScale Systems -######################################################################### - -adsvix_config : unconfig - @$(MKCONFIG) $(@:_config=) arm pxa adsvix - -delta_config : - @$(MKCONFIG) $(@:_config=) arm pxa delta - -pxa255_idp_config: unconfig - @$(MKCONFIG) $(@:_config=) arm pxa pxa255_idp - -######################################################################### -## ARM1136 Systems -######################################################################### - -#======================================================================== -# i386 -#======================================================================== -######################################################################### -## AMD SC520 CDP -######################################################################### - -#======================================================================== -# MIPS -#======================================================================== -######################################################################### -## MIPS32 4Kc -######################################################################### - -######################################################################### -## MIPS32 AU1X00 -######################################################################### - -######################################################################### -## MIPS64 5Kc -######################################################################### - -#======================================================================== -# Nios -#======================================================================== -######################################################################### -## Nios32 -######################################################################### - -######################################################################### -## Nios-II -######################################################################### - -EP1C20_config : unconfig - @$(MKCONFIG) EP1C20 nios2 nios2 ep1c20 altera - -EP1S10_config : unconfig - @$(MKCONFIG) EP1S10 nios2 nios2 ep1s10 altera - -EP1S40_config : unconfig - @$(MKCONFIG) EP1S40 nios2 nios2 ep1s40 altera - -PK1C20_config : unconfig - @$(MKCONFIG) PK1C20 nios2 nios2 pk1c20 psyent - -PCI5441_config : unconfig - @$(MKCONFIG) PCI5441 nios2 nios2 pci5441 psyent - -#======================================================================== -# MicroBlaze -#======================================================================== -######################################################################### -## Microblaze -######################################################################### - -######################################################################### -## Blackfin -######################################################################### - -stamp_config : unconfig - @$(MKCONFIG) $(@:_config=) blackfin bf533 stamp - -dspstamp_config : unconfig - @$(MKCONFIG) $(@:_config=) blackfin bf533 dsp_stamp - -#======================================================================== -# AVR32 -#======================================================================== -######################################################################### -## AT32AP7xxx -######################################################################### - -######################################################################### -######################################################################### -######################################################################### - -clean: - find $(OBJTREE) -type f \ - \( -name 'core' -o -name '*.bak' -o -name '*~' \ - -o -name '*.o' -o -name '*.a' \) -print \ - | xargs rm -f - rm -f $(obj)examples/hello_world $(obj)examples/timer \ - $(obj)examples/eepro100_eeprom $(obj)examples/sched \ - $(obj)examples/mem_to_mem_idma2intr $(obj)examples/82559_eeprom \ - $(obj)examples/smc91111_eeprom $(obj)examples/interrupt \ - $(obj)examples/test_burst - rm -f $(obj)tools/img2srec $(obj)tools/mkimage $(obj)tools/envcrc \ - $(obj)tools/gen_eth_addr - rm -f $(obj)tools/mpc86x_clk $(obj)tools/ncb - rm -f $(obj)tools/easylogo/easylogo $(obj)tools/bmp_logo - rm -f $(obj)tools/gdb/astest $(obj)tools/gdb/gdbcont $(obj)tools/gdb/gdbsend - rm -f $(obj)tools/env/fw_printenv $(obj)tools/env/fw_setenv - rm -f $(obj)board/voiceblue/eeprom - rm -f $(obj)board/integratorap/u-boot.lds $(obj)board/integratorcp/u-boot.lds - rm -f $(obj)include/bmp_logo.h - rm -f $(obj)nand_spl/u-boot-spl $(obj)nand_spl/u-boot-spl.map - -clobber: clean - find $(OBJTREE) -type f \( -name .depend \ - -o -name '*.srec' -o -name '*.bin' -o -name u-boot.img \) \ - -print0 \ - | xargs -0 rm -f - rm -f $(OBJS) $(obj)*.bak $(obj)ctags $(obj)etags $(obj)TAGS $(obj)include/version_autogenerated.h - rm -fr $(obj)*.*~ - rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL) - rm -f $(obj)tools/crc32.c $(obj)tools/environment.c $(obj)tools/env/crc32.c - rm -f $(obj)tools/inca-swap-bytes $(obj)cpu/mpc824x/bedbug_603e.c - rm -f $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm - [ ! -d $(OBJTREE)/nand_spl ] || find $(obj)nand_spl -lname "*" -print | xargs rm -f - -ifeq ($(OBJTREE),$(SRCTREE)) -mrproper \ -distclean: clobber unconfig +endef + +quiet_cmd_cscope-file = FILELST cscope.files + cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files + +quiet_cmd_cscope = MAKE cscope.out + cmd_cscope = cscope -b + +cscope: FORCE + $(call cmd,cscope-file) + $(call cmd,cscope) + +quiet_cmd_TAGS = MAKE $@ +define cmd_TAGS + rm -f $@; \ + $(call xtags,etags) +endef + +TAGS: FORCE + $(call cmd,TAGS) + +quiet_cmd_tags = MAKE $@ +define cmd_tags + rm -f $@; \ + $(call xtags,ctags) +endef + +tags: FORCE + $(call cmd,tags) + + +# Scripts to check various things for consistency +# --------------------------------------------------------------------------- + +includecheck: + find * $(RCS_FIND_IGNORE) \ + -name '*.[hcS]' -type f -print | sort \ + | xargs $(PERL) -w scripts/checkincludes.pl + +versioncheck: + find * $(RCS_FIND_IGNORE) \ + -name '*.[hcS]' -type f -print | sort \ + | xargs $(PERL) -w scripts/checkversion.pl + +namespacecheck: + $(PERL) $(srctree)/scripts/namespace.pl + +endif #ifeq ($(config-targets),1) +endif #ifeq ($(mixed-targets),1) + +PHONY += checkstack kernelrelease kernelversion + +# UML needs a little special treatment here. It wants to use the host +# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone +# else wants $(ARCH), including people doing cross-builds, which means +# that $(SUBARCH) doesn't work here. +ifeq ($(ARCH), um) +CHECKSTACK_ARCH := $(SUBARCH) else -mrproper \ -distclean: clobber unconfig - rm -rf $(OBJTREE)/* +CHECKSTACK_ARCH := $(ARCH) endif +checkstack: + $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ + $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) + +kernelrelease: + $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ + $(error kernelrelease not valid - run 'make prepare' to update it)) +kernelversion: + @echo $(KERNELVERSION) + +# Single targets +# --------------------------------------------------------------------------- +# Single targets are compatible with: +# - build whith mixed source and output +# - build with separate output dir 'make O=...' +# - external modules +# +# target-dir => where to store outputfile +# build-dir => directory in kernel source tree to use + +ifeq ($(KBUILD_EXTMOD),) + build-dir = $(patsubst %/,%,$(dir $@)) + target-dir = $(dir $@) +else + zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) + build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) + target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) +endif + +%.s: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.i: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.o: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.lst: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.s: %.S prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.o: %.S prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) +%.symtypes: %.c prepare scripts FORCE + $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) + +# Modules +/ %/: prepare scripts FORCE + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) +%.ko: prepare scripts FORCE + $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ + $(build)=$(build-dir) $(@:.ko=.o) + $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost + +# FIXME Should go into a make.lib or something +# =========================================================================== + +quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) + cmd_rmdirs = rm -rf $(rm-dirs) + +quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) + cmd_rmfiles = rm -f $(rm-files) + + +a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \ + $(NOSTDINC_FLAGS) $(CPPFLAGS) \ + $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) + +quiet_cmd_as_o_S = AS $@ +cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< + +# read all saved command lines + +targets := $(wildcard $(sort $(targets))) +cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) + +ifneq ($(cmd_files),) + $(cmd_files): ; # Do not try to update included dependency files + include $(cmd_files) +endif + +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir +# Usage: +# $(Q)$(MAKE) $(clean)=dir +clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj + +endif # skip-makefile + +PHONY += FORCE +FORCE: -backup: - F=`basename $(TOPDIR)` ; cd .. ; \ - gtar --force-local -zcvf `date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F +# Cancel implicit rules on top Makefile, `-rR' will apply to sub-makes. +Makefile: ; -######################################################################### +# Declare the contents of the .PHONY variable as phony. We keep that +# information in a variable se we can use it in if_changed and friends. +.PHONY: $(PHONY) |