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# SPDX-License-Identifier: GPL-2.0 |
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VERSION = 5 |
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PATCHLEVEL = 4 |
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SUBLEVEL = 55 |
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EXTRAVERSION = |
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NAME = Kleptomaniac Octopus |
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# *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. |
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# That's our default target when none is given on the command line PHONY := _all _all: |
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# We are using a recursive build, so we need to do a little thinking # to get the ordering right. # # 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 |
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# unavoidable when linking the built-in.a targets which finally |
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# 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. # # 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. |
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ifneq ($(sub_make_done),1) |
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# Do not use make's built-in rules and variables # (this increases performance and avoids hard-to-debug behaviour) MAKEFLAGS += -rR # Avoid funny character set dependencies unexport LC_ALL LC_COLLATE=C LC_NUMERIC=C export LC_COLLATE LC_NUMERIC # Avoid interference with shell env settings unexport GREP_OPTIONS |
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# Beautify output # --------------------------------------------------------------------------- # # 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. # # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< # # 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. # # A simple variant is to prefix commands with $(Q) - that's useful # for commands that shall be hidden in non-verbose mode. # # $(Q)ln $@ :< # # If KBUILD_VERBOSE equals 0 then the above command will be hidden. # If KBUILD_VERBOSE equals 1 then the above command is displayed. # |
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# To put more focus on warnings, be less verbose as default # Use 'make V=1' to see the full commands |
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ifeq ("$(origin V)", "command line") KBUILD_VERBOSE = $(V) |
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endif ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif |
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ifeq ($(KBUILD_VERBOSE),1) quiet = Q = else quiet=quiet_ Q = @ endif # If the user is running make -s (silent mode), suppress echoing of # commands |
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ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),) |
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quiet=silent_ endif |
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export quiet Q KBUILD_VERBOSE |
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# Kbuild will save output files in the current working directory. # This does not need to match to the root of the kernel source tree. # # For example, you can do this: # # cd /dir/to/store/output/files; make -f /dir/to/kernel/source/Makefile # # If you want to save output files in a different location, there are # two syntaxes to specify it. # |
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# 1) O= # Use "make O=dir/to/store/output/files/" |
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# |
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# 2) Set KBUILD_OUTPUT |
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# Set the environment variable KBUILD_OUTPUT to point to the output directory. # export KBUILD_OUTPUT=dir/to/store/output/files/; make |
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# # The O= assignment takes precedence over the KBUILD_OUTPUT environment # variable. |
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# Do we want to change the working directory? |
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ifeq ("$(origin O)", "command line") KBUILD_OUTPUT := $(O) |
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endif |
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ifneq ($(KBUILD_OUTPUT),) # Make's built-in functions such as $(abspath ...), $(realpath ...) cannot # expand a shell special character '~'. We use a somewhat tedious way here. abs_objtree := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) && pwd) $(if $(abs_objtree),, \ $(error failed to create output directory "$(KBUILD_OUTPUT)")) # $(realpath ...) resolves symlinks abs_objtree := $(realpath $(abs_objtree)) else abs_objtree := $(CURDIR) endif # ifneq ($(KBUILD_OUTPUT),) ifeq ($(abs_objtree),$(CURDIR)) # Suppress "Entering directory ..." unless we are changing the work directory. MAKEFLAGS += --no-print-directory else need-sub-make := 1 |
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endif |
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abs_srctree := $(realpath $(dir $(lastword $(MAKEFILE_LIST)))) |
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ifneq ($(words $(subst :, ,$(abs_srctree))), 1) $(error source directory cannot contain spaces or colons) endif |
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ifneq ($(abs_srctree),$(abs_objtree)) |
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# Look for make include files relative to root of kernel src # # This does not become effective immediately because MAKEFLAGS is re-parsed |
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# once after the Makefile is read. We need to invoke sub-make. MAKEFLAGS += --include-dir=$(abs_srctree) |
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need-sub-make := 1 |
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endif |
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ifneq ($(filter 3.%,$(MAKE_VERSION)),) # 'MAKEFLAGS += -rR' does not immediately become effective for GNU Make 3.x # We need to invoke sub-make to avoid implicit rules in the top Makefile. need-sub-make := 1 # Cancel implicit rules for this Makefile. $(lastword $(MAKEFILE_LIST)): ; endif |
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export abs_srctree abs_objtree |
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export sub_make_done := 1 |
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ifeq ($(need-sub-make),1) |
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PHONY += $(MAKECMDGOALS) sub-make |
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$(filter-out _all sub-make $(lastword $(MAKEFILE_LIST)), $(MAKECMDGOALS)) _all: sub-make |
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@: |
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# Invoke a second make in the output directory, passing relevant variables |
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sub-make: |
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$(Q)$(MAKE) -C $(abs_objtree) -f $(abs_srctree)/Makefile $(MAKECMDGOALS) |
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endif # need-sub-make |
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endif # sub_make_done |
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# We process the rest of the Makefile if this is the final invocation of make |
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ifeq ($(need-sub-make),) |
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# Do not print "Entering directory ...", # but we want to display it when entering to the output directory # so that IDEs/editors are able to understand relative filenames. MAKEFLAGS += --no-print-directory |
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# Call a source code checker (by default, "sparse") as part of the # C compilation. # # 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. # |
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# See the file "Documentation/dev-tools/sparse.rst" for more details, # including where to get the "sparse" utility. |
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ifeq ("$(origin C)", "command line") KBUILD_CHECKSRC = $(C) endif ifndef KBUILD_CHECKSRC KBUILD_CHECKSRC = 0 endif |
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# Use make M=dir or set the environment variable KBUILD_EXTMOD to specify the # directory of external module to build. Setting M= takes precedence. |
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ifeq ("$(origin M)", "command line") KBUILD_EXTMOD := $(M) endif |
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export KBUILD_CHECKSRC KBUILD_EXTMOD |
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extmod-prefix = $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/) |
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ifeq ($(abs_srctree),$(abs_objtree)) |
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# building in the source tree srctree := . |
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building_out_of_srctree := |
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else |
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ifeq ($(abs_srctree)/,$(dir $(abs_objtree))) |
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# building in a subdirectory of the source tree srctree := .. else |
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srctree := $(abs_srctree) |
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endif |
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building_out_of_srctree := 1 |
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endif |
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ifneq ($(KBUILD_ABS_SRCTREE),) srctree := $(abs_srctree) endif |
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objtree := . |
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VPATH := $(srctree) |
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export building_out_of_srctree srctree objtree VPATH |
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# 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). version_h := include/generated/uapi/linux/version.h old_version_h := include/linux/version.h |
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clean-targets := %clean mrproper cleandocs no-dot-config-targets := $(clean-targets) \ |
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cscope gtags TAGS tags help% %docs check% coccicheck \ |
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$(version_h) headers headers_% archheaders archscripts \ |
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%asm-generic kernelversion %src-pkg |
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no-sync-config-targets := $(no-dot-config-targets) install %install \ kernelrelease |
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single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.s %.symtypes %/ |
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config-build := mixed-build := need-config := 1 may-sync-config := 1 |
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single-build := |
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ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
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need-config := |
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endif endif |
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ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),) ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),) |
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may-sync-config := |
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endif endif ifneq ($(KBUILD_EXTMOD),) |
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may-sync-config := |
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endif |
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ifeq ($(KBUILD_EXTMOD),) ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
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config-build := 1 |
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ifneq ($(words $(MAKECMDGOALS)),1) |
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mixed-build := 1 |
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endif endif endif |
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# We cannot build single targets and the others at the same time ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),) single-build := 1 ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),) mixed-build := 1 endif endif |
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# For "make -j clean all", "make -j mrproper defconfig all", etc. ifneq ($(filter $(clean-targets),$(MAKECMDGOALS)),) ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),) |
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mixed-build := 1 |
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endif endif |
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# install and modules_install need also be processed one by one ifneq ($(filter install,$(MAKECMDGOALS)),) ifneq ($(filter modules_install,$(MAKECMDGOALS)),) |
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mixed-build := 1 |
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endif endif |
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ifdef mixed-build |
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# =========================================================================== # We're called with mixed targets (*config and build targets). # Handle them one by one. PHONY += $(MAKECMDGOALS) __build_one_by_one $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one @: __build_one_by_one: $(Q)set -e; \ for i in $(MAKECMDGOALS); do \ $(MAKE) -f $(srctree)/Makefile $$i; \ done |
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else # !mixed-build |
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include scripts/Kbuild.include # Read KERNELRELEASE from include/config/kernel.release (if it exists) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
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include scripts/subarch.include |
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# Cross compiling and selecting different set of gcc/bin-utils # --------------------------------------------------------------------------- # # 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 |
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ARCH ?= $(SUBARCH) |
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# Architecture as present in compile.h |
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UTS_MACHINE := $(ARCH) SRCARCH := $(ARCH) |
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# Additional ARCH settings for x86 ifeq ($(ARCH),i386) SRCARCH := x86 endif ifeq ($(ARCH),x86_64) SRCARCH := x86 endif |
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# Additional ARCH settings for sparc |
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ifeq ($(ARCH),sparc32) SRCARCH := sparc endif |
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ifeq ($(ARCH),sparc64) |
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SRCARCH := sparc |
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endif |
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# Additional ARCH settings for sh ifeq ($(ARCH),sh64) SRCARCH := sh endif |
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KCONFIG_CONFIG ?= .config |
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export KCONFIG_CONFIG |
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# SHELL used by kbuild |
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CONFIG_SHELL := sh |
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HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) |
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HOSTCC = gcc HOSTCXX = g++ |
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KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \ |
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-fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \ $(HOSTCFLAGS) KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) |
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# Make variables (CC, etc...) |
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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 |
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OBJSIZE = $(CROSS_COMPILE)size |
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PAHOLE = pahole |
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LEX = flex YACC = bison |
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AWK = awk |
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INSTALLKERNEL := installkernel |
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DEPMOD = /sbin/depmod |
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PERL = perl |
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PYTHON = python |
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PYTHON2 = python2 PYTHON3 = python3 |
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CHECK = sparse |
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BASH = bash |
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CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
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-Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF) |
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NOSTDINC_FLAGS := |
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CFLAGS_MODULE = AFLAGS_MODULE = LDFLAGS_MODULE = |
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CFLAGS_KERNEL = AFLAGS_KERNEL = |
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LDFLAGS_vmlinux = |
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# Use USERINCLUDE when you must reference the UAPI directories only. USERINCLUDE := \ |
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-I$(srctree)/arch/$(SRCARCH)/include/uapi \ -I$(objtree)/arch/$(SRCARCH)/include/generated/uapi \ |
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-I$(srctree)/include/uapi \ |
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-I$(objtree)/include/generated/uapi \ |
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-include $(srctree)/include/linux/kconfig.h |
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# Use LINUXINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option |
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LINUXINCLUDE := \ |
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-I$(srctree)/arch/$(SRCARCH)/include \ -I$(objtree)/arch/$(SRCARCH)/include/generated \ |
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$(if $(building_out_of_srctree),-I$(srctree)/include) \ |
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-I$(objtree)/include \ $(USERINCLUDE) |
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KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE |
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KBUILD_CFLAGS := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \ |
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-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \ |
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-Werror=implicit-function-declaration -Werror=implicit-int \ |
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-Wno-format-security \ |
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-std=gnu89 KBUILD_CPPFLAGS := -D__KERNEL__ |
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KBUILD_AFLAGS_KERNEL := KBUILD_CFLAGS_KERNEL := |
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KBUILD_AFLAGS_MODULE := -DMODULE KBUILD_CFLAGS_MODULE := -DMODULE |
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KBUILD_LDFLAGS_MODULE := export KBUILD_LDS_MODULE := $(srctree)/scripts/module-common.lds |
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KBUILD_LDFLAGS := |
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GCC_PLUGINS_CFLAGS := |
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CLANG_FLAGS := |
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|
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export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC |
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export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE |
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export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS |
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export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE CFLAGS_UBSAN |
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export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
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export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
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export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
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|
456 |
# Files to ignore in find ... statements |
ae63b2d7b
|
457 458 459 |
export 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 |
450c6076a
|
460 461 |
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ --exclude CVS --exclude .pc --exclude .hg --exclude .git |
1da177e4c
|
462 463 464 |
# =========================================================================== # Rules shared between *config targets and build targets |
312a3d091
|
465 |
# Basic helpers built in scripts/basic/ |
4f1933620
|
466 |
PHONY += scripts_basic |
1da177e4c
|
467 468 |
scripts_basic: $(Q)$(MAKE) $(build)=scripts/basic |
638adb056
|
469 |
$(Q)rm -f .tmp_quiet_recordmcount |
1da177e4c
|
470 |
|
4f1933620
|
471 |
PHONY += outputmakefile |
e8e83a236
|
472 |
# Before starting out-of-tree build, make sure the source tree is clean. |
fd5f0cd6b
|
473 474 475 |
# outputmakefile generates a Makefile in the output directory, if using a # separate output directory. This allows convenient use of make in the # output directory. |
3a51ff344
|
476 477 |
# At the same time when output Makefile generated, generate .gitignore to # ignore whole output directory |
1da177e4c
|
478 |
outputmakefile: |
051f278e9
|
479 |
ifdef building_out_of_srctree |
e8e83a236
|
480 481 482 483 484 485 486 487 488 |
$(Q)if [ -f $(srctree)/.config -o \ -d $(srctree)/include/config -o \ -d $(srctree)/arch/$(SRCARCH)/include/generated ]; then \ echo >&2 "***"; \ echo >&2 "*** The source tree is not clean, please run 'make$(if $(findstring command line, $(origin ARCH)), ARCH=$(ARCH)) mrproper'"; \ echo >&2 "*** in $(abs_srctree)";\ echo >&2 "***"; \ false; \ fi |
929799973
|
489 |
$(Q)ln -fsn $(srctree) source |
4fd61277f
|
490 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) |
156e7cbb3
|
491 492 |
$(Q)test -e .gitignore || \ { echo "# this is build directory, ignore it"; echo "*"; } > .gitignore |
fd5f0cd6b
|
493 |
endif |
1da177e4c
|
494 |
|
995167420
|
495 |
ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) |
ae6b289a3
|
496 |
ifneq ($(CROSS_COMPILE),) |
5241ab4cf
|
497 |
CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) |
ad15006cc
|
498 |
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit)) |
5835e6d59
|
499 |
CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE)) |
ef8c4ed9d
|
500 |
GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) |
ae6b289a3
|
501 502 |
endif ifneq ($(GCC_TOOLCHAIN),) |
238bcbc4e
|
503 |
CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN) |
ae6b289a3
|
504 |
endif |
876a06008
|
505 |
ifeq ($(shell $(AS) --version 2>&1 | head -n 1 | grep clang),) |
238bcbc4e
|
506 |
CLANG_FLAGS += -no-integrated-as |
876a06008
|
507 |
endif |
589834b3a
|
508 |
CLANG_FLAGS += -Werror=unknown-warning-option |
238bcbc4e
|
509 510 |
KBUILD_CFLAGS += $(CLANG_FLAGS) KBUILD_AFLAGS += $(CLANG_FLAGS) |
3bd980509
|
511 |
export CLANG_FLAGS |
ae6b289a3
|
512 |
endif |
315bab4e9
|
513 514 515 516 |
# The expansion should be delayed until arch/$(SRCARCH)/Makefile is included. # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile. # CC_VERSION_TEXT is referenced from Kconfig (so it needs export), # and from include/config/auto.conf.cmd to detect the compiler upgrade. |
902a6898b
|
517 |
CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1) |
315bab4e9
|
518 |
|
2042b5486
|
519 |
ifdef config-build |
1da177e4c
|
520 521 522 523 524 525 526 |
# =========================================================================== # *config targets only - make sure prerequisites are updated, and descend # in scripts/kconfig to make the *config target # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. # KBUILD_DEFCONFIG may point out an alternative default configuration # used for 'make defconfig' |
a436bb7b8
|
527 |
include arch/$(SRCARCH)/Makefile |
315bab4e9
|
528 |
export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT |
1da177e4c
|
529 |
|
36de077b2
|
530 |
config: outputmakefile scripts_basic FORCE |
31110ebbe
|
531 |
$(Q)$(MAKE) $(build)=scripts/kconfig $@ |
36de077b2
|
532 |
%config: outputmakefile scripts_basic FORCE |
1da177e4c
|
533 |
$(Q)$(MAKE) $(build)=scripts/kconfig $@ |
2042b5486
|
534 |
else #!config-build |
1da177e4c
|
535 536 537 |
# =========================================================================== # Build targets only - this includes vmlinux, arch specific targets, clean # targets and others. In general all targets except *config targets. |
2c1f4f125
|
538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 |
# If building an external module we do not care about the all: rule # but instead _all depend on modules PHONY += all ifeq ($(KBUILD_EXTMOD),) _all: all else _all: modules endif # 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. |
2c1f4f125
|
554 |
ifeq ($(MAKECMDGOALS),modules) |
e4f7a7260
|
555 |
KBUILD_BUILTIN := |
2c1f4f125
|
556 557 558 559 560 |
endif # If we have "make <whatever> modules", compile modules # in addition to whatever we do anyway. # Just "make" or "make all" shall build modules as well |
d85103ac7
|
561 |
ifneq ($(filter all _all modules nsdeps,$(MAKECMDGOALS)),) |
2c1f4f125
|
562 563 564 565 566 567 568 569 |
KBUILD_MODULES := 1 endif ifeq ($(MAKECMDGOALS),) KBUILD_MODULES := 1 endif export KBUILD_MODULES KBUILD_BUILTIN |
2042b5486
|
570 |
ifdef need-config |
d93a18f27
|
571 572 |
include include/config/auto.conf endif |
1da177e4c
|
573 |
ifeq ($(KBUILD_EXTMOD),) |
1da177e4c
|
574 575 |
# Objects we will link into vmlinux / subdirs we need to visit init-y := init/ |
f96182e95
|
576 |
drivers-y := drivers/ sound/ |
d93a18f27
|
577 |
drivers-$(CONFIG_SAMPLES) += samples/ |
1da177e4c
|
578 579 580 |
net-y := net/ libs-y := lib/ core-y := usr/ |
37d9fe478
|
581 |
virt-y := virt/ |
1da177e4c
|
582 |
endif # KBUILD_EXTMOD |
315bab4e9
|
583 584 585 586 587 588 589 590 591 |
# 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 to vmlinux, but the arch makefile usually adds further targets all: vmlinux CFLAGS_GCOV := -fprofile-arcs -ftest-coverage \ $(call cc-option,-fno-tree-loop-im) \ $(call cc-disable-warning,maybe-uninitialized,) |
5aadfdeb8
|
592 |
export CFLAGS_GCOV |
315bab4e9
|
593 |
|
b1f4ff74f
|
594 595 596 597 |
# The arch Makefiles can override CC_FLAGS_FTRACE. We may also append it later. ifdef CONFIG_FUNCTION_TRACER CC_FLAGS_FTRACE := -pg endif |
669e06b19
|
598 599 600 601 602 603 604 605 |
RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register RETPOLINE_VDSO_CFLAGS_GCC := -mindirect-branch=thunk-inline -mindirect-branch-register RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk RETPOLINE_VDSO_CFLAGS_CLANG := -mretpoline RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG))) RETPOLINE_VDSO_CFLAGS := $(call cc-option,$(RETPOLINE_VDSO_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_VDSO_CFLAGS_CLANG))) export RETPOLINE_CFLAGS export RETPOLINE_VDSO_CFLAGS |
315bab4e9
|
606 |
include arch/$(SRCARCH)/Makefile |
1da177e4c
|
607 |
|
2042b5486
|
608 609 |
ifdef need-config ifdef may-sync-config |
315bab4e9
|
610 611 612 |
# Read in dependencies to all Kconfig* files, make sure to run syncconfig if # changes are detected. This should be included after arch/$(SRCARCH)/Makefile # because some architectures define CROSS_COMPILE there. |
d2f8ae0e4
|
613 |
include include/config/auto.conf.cmd |
1da177e4c
|
614 |
|
058507195
|
615 616 617 618 619 620 621 622 |
$(KCONFIG_CONFIG): @echo >&2 '***' @echo >&2 '*** Configuration file "$@" not found!' @echo >&2 '***' @echo >&2 '*** Please run some configurator (e.g. "make oldconfig" or' @echo >&2 '*** "make menuconfig" or "make xconfig").' @echo >&2 '***' @/bin/false |
1da177e4c
|
623 |
|
61277981d
|
624 625 626 |
# The actual configuration files used during the build are stored in # include/generated/ and include/config/. Update them if .config is newer than # include/config/auto.conf (which mirrors .config). |
9390dff66
|
627 628 629 630 |
# # This exploits the 'multi-target pattern rule' trick. # The syncconfig should be executed only once to make all the targets. %/auto.conf %/auto.conf.cmd %/tristate.conf: $(KCONFIG_CONFIG) |
911a91c39
|
631 |
$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig |
2042b5486
|
632 |
else # !may-sync-config |
d79424137
|
633 634 635 |
# External modules and some install targets need include/generated/autoconf.h # and include/config/auto.conf but do not care if they are up-to-date. # Use auto.conf to trigger the test |
9ee4e3365
|
636 637 638 |
PHONY += include/config/auto.conf include/config/auto.conf: |
264a26838
|
639 |
$(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
5369f5502
|
640 641 642 643 644 |
echo >&2; \ echo >&2 " ERROR: Kernel configuration is invalid."; \ echo >&2 " include/generated/autoconf.h or $@ are missing.";\ echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ echo >&2 ; \ |
9ee4e3365
|
645 |
/bin/false) |
d79424137
|
646 |
endif # may-sync-config |
2042b5486
|
647 |
endif # need-config |
1da177e4c
|
648 |
|
a1c48bb16
|
649 |
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) |
ef6000b4c
|
650 |
KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,) |
bd664f6b3
|
651 652 |
KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation) KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow) |
6f303d605
|
653 |
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) |
a1c48bb16
|
654 |
|
15f5db60a
|
655 656 657 658 659 660 |
ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE KBUILD_CFLAGS += -O2 else ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 KBUILD_CFLAGS += -O3 else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE KBUILD_CFLAGS += -Os |
815eb71e7
|
661 |
endif |
1da177e4c
|
662 |
|
69102311a
|
663 664 |
# Tell gcc to never replace conditional load with a non-conditional one KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) |
10cfaa745
|
665 |
KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races) |
69102311a
|
666 |
|
d677a4d60
|
667 |
include scripts/Makefile.kcov |
6b90bd4ba
|
668 |
include scripts/Makefile.gcc-plugins |
1873e870f
|
669 670 671 672 673 674 675 676 677 |
ifdef CONFIG_READABLE_ASM # Disable optimizations that make assembler listings hard to read. # reorder blocks reorders the control in the function # ipa clone creates specialized cloned functions # partial inlining inlines only parts of functions KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ $(call cc-option,-fno-ipa-cp-clone,) \ $(call cc-option,-fno-partial-inlining) endif |
08f67461c
|
678 |
ifneq ($(CONFIG_FRAME_WARN),0) |
35bb5b1e0
|
679 680 |
KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif |
2a61f4747
|
681 |
stackp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector |
050e9baa9
|
682 683 |
stackp-flags-$(CONFIG_STACKPROTECTOR) := -fstack-protector stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong |
2a61f4747
|
684 685 |
KBUILD_CFLAGS += $(stackp-flags-y) |
e06b8b98d
|
686 |
|
076f421da
|
687 |
ifdef CONFIG_CC_IS_CLANG |
a14943043
|
688 689 690 |
KBUILD_CPPFLAGS += -Qunused-arguments KBUILD_CFLAGS += -Wno-format-invalid-specifier KBUILD_CFLAGS += -Wno-gnu |
cfe17c9bb
|
691 |
# Quiet clang warning: comparison of unsigned expression < 0 is always false |
a14943043
|
692 |
KBUILD_CFLAGS += -Wno-tautological-compare |
cfe17c9bb
|
693 694 695 |
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the # source of a reference will be _MergedGlobals and not on of the whitelisted names. # See modpost pattern 2 |
a14943043
|
696 |
KBUILD_CFLAGS += -mno-global-merge |
cfe17c9bb
|
697 698 699 700 |
else # These warnings generated too much noise in a regular build. # Use make W=1 to enable them (see scripts/Makefile.extrawarn) |
9df3e7a7d
|
701 |
KBUILD_CFLAGS += -Wno-unused-but-set-variable |
e2079e93f
|
702 703 704 705 706 |
# Warn about unmarked fall-throughs in switch statement. # Disabled for clang while comment to attribute conversion happens and # https://github.com/ClangBuiltLinux/linux/issues/636 is discussed. KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough,) |
cfe17c9bb
|
707 |
endif |
0a5f41767
|
708 |
KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable) |
1da177e4c
|
709 |
ifdef CONFIG_FRAME_POINTER |
a0f97e06a
|
710 |
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
1da177e4c
|
711 |
else |
7e9501fde
|
712 713 714 715 716 717 |
# Some targets (ARM with Thumb2, for example), can't be built with frame # pointers. For those, we don't have FUNCTION_TRACER automatically # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is # incompatible with -fomit-frame-pointer with current GCC, so we don't use # -fomit-frame-pointer with FUNCTION_TRACER. ifndef CONFIG_FUNCTION_TRACER |
a0f97e06a
|
718 |
KBUILD_CFLAGS += -fomit-frame-pointer |
1da177e4c
|
719 |
endif |
7e9501fde
|
720 |
endif |
1da177e4c
|
721 |
|
709a972ef
|
722 723 724 725 |
# Initialize all stack variables with a pattern, if desired. ifdef CONFIG_INIT_STACK_ALL KBUILD_CFLAGS += -ftrivial-auto-var-init=pattern endif |
1e88e415e
|
726 |
DEBUG_CFLAGS := $(call cc-option, -fno-var-tracking-assignments) |
2062afb4f
|
727 |
|
1da177e4c
|
728 |
ifdef CONFIG_DEBUG_INFO |
866ced950
|
729 |
ifdef CONFIG_DEBUG_INFO_SPLIT |
9d9374440
|
730 |
DEBUG_CFLAGS += -gsplit-dwarf |
866ced950
|
731 |
else |
1e88e415e
|
732 |
DEBUG_CFLAGS += -g |
866ced950
|
733 |
endif |
2288328ce
|
734 |
KBUILD_AFLAGS += -Wa,-gdwarf-2 |
1da177e4c
|
735 |
endif |
bfaf2dd35
|
736 |
ifdef CONFIG_DEBUG_INFO_DWARF4 |
9d9374440
|
737 |
DEBUG_CFLAGS += -gdwarf-4 |
bfaf2dd35
|
738 |
endif |
1da177e4c
|
739 |
|
d6f4ceb79
|
740 |
ifdef CONFIG_DEBUG_INFO_REDUCED |
1e88e415e
|
741 |
DEBUG_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |
e82c4bb8b
|
742 |
$(call cc-option,-fno-var-tracking) |
d6f4ceb79
|
743 |
endif |
1e88e415e
|
744 745 |
KBUILD_CFLAGS += $(DEBUG_CFLAGS) export DEBUG_CFLAGS |
606576ce8
|
746 |
ifdef CONFIG_FUNCTION_TRACER |
07d040812
|
747 748 749 750 751 752 |
ifdef CONFIG_FTRACE_MCOUNT_RECORD # gcc 5 supports generating the mcount tables directly ifeq ($(call cc-option-yn,-mrecord-mcount),y) CC_FLAGS_FTRACE += -mrecord-mcount export CC_USING_RECORD_MCOUNT := 1 endif |
2f4df0017
|
753 754 755 756 757 758 |
ifdef CONFIG_HAVE_NOP_MCOUNT ifeq ($(call cc-option-yn, -mnop-mcount),y) CC_FLAGS_FTRACE += -mnop-mcount CC_FLAGS_USING += -DCC_USING_NOP_MCOUNT endif endif |
07d040812
|
759 |
endif |
a2546fae0
|
760 |
ifdef CONFIG_HAVE_FENTRY |
f28bc3c32
|
761 762 763 764 |
ifeq ($(call cc-option-yn, -mfentry),y) CC_FLAGS_FTRACE += -mfentry CC_FLAGS_USING += -DCC_USING_FENTRY endif |
a2546fae0
|
765 |
endif |
f28bc3c32
|
766 767 768 |
export CC_FLAGS_FTRACE KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_FLAGS_USING) KBUILD_AFLAGS += $(CC_FLAGS_USING) |
72441cb1f
|
769 |
ifdef CONFIG_DYNAMIC_FTRACE |
cf4db2597
|
770 |
ifdef CONFIG_HAVE_C_RECORDMCOUNT |
72441cb1f
|
771 772 773 774 |
BUILD_C_RECORDMCOUNT := y export BUILD_C_RECORDMCOUNT endif endif |
16444a8a4
|
775 |
endif |
91341d4b2
|
776 777 778 779 |
# We trigger additional mismatches with less inlining ifdef CONFIG_DEBUG_SECTION_MISMATCH KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) endif |
90ad4052e
|
780 |
ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION |
e85d1d65c
|
781 782 |
KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections LDFLAGS_vmlinux += --gc-sections |
90ad4052e
|
783 |
endif |
43bd3a95c
|
784 785 786 |
ifdef CONFIG_LIVEPATCH KBUILD_CFLAGS += $(call cc-option, -flive-patching=inline-clone) endif |
e8e699317
|
787 |
# arch Makefile may override CC so keep this after arch Makefile is included |
e08d6de4e
|
788 |
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
e8e699317
|
789 |
|
1da177e4c
|
790 |
# warn about C99 declaration after statement |
a33e7ae29
|
791 |
KBUILD_CFLAGS += -Wdeclaration-after-statement |
1da177e4c
|
792 |
|
0bb95f80a
|
793 |
# Variable Length Arrays (VLAs) should not be used anywhere in the kernel |
8289f913f
|
794 |
KBUILD_CFLAGS += -Wvla |
0bb95f80a
|
795 |
|
070b98bfd
|
796 |
# disable pointer signed / unsigned warnings in gcc 4.0 |
fb073a4b4
|
797 |
KBUILD_CFLAGS += -Wno-pointer-sign |
1da177e4c
|
798 |
|
217c3e019
|
799 800 |
# disable stringop warnings in gcc 8+ KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) |
a740b68fd
|
801 802 |
# We'll want to enable this eventually, but it's not going away for 5.7 at least KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) |
9ba07a72f
|
803 |
KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) |
b8e7b9333
|
804 |
KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) |
a740b68fd
|
805 |
|
dff2ce179
|
806 807 |
# Another good warning that we'll want to enable eventually KBUILD_CFLAGS += $(call cc-disable-warning, restrict) |
8f6a84167
|
808 809 |
# Enabled with W=2, disabled by default as noisy KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) |
fe8d0a410
|
810 |
# disable invalid "can't wrap" optimizations for signed / pointers |
a137802ee
|
811 |
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
d0115552c
|
812 |
|
87e0d4f0f
|
813 814 815 816 817 818 819 820 |
# clang sets -fmerge-all-constants by default as optimization, but this # is non-conforming behavior for C and in fact breaks the kernel, so we # need to disable it here generally. KBUILD_CFLAGS += $(call cc-option,-fno-merge-all-constants) # for gcc -fno-merge-all-constants disables everything, but it is fine # to have actual conforming behavior enabled. KBUILD_CFLAGS += $(call cc-option,-fmerge-constants) |
3ce120b16
|
821 822 |
# Make sure -fstack-check isn't enabled (like gentoo apparently did) KBUILD_CFLAGS += $(call cc-option,-fno-stack-check,) |
8f7f5c9fc
|
823 824 |
# conserve stack if available KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
fe7c36c7b
|
825 826 |
# Prohibit date/time macros, which would make the build non-deterministic KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) |
ea8daa7b9
|
827 828 |
# enforce correct pointer usage KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types) |
c834f0e8a
|
829 830 |
# Require designated initializers for all marked structures KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init) |
a73619a84
|
831 832 |
# change __FILE__ to the relative path from the srctree KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) |
29be86d7f
|
833 834 835 836 837 |
# ensure -fcf-protection is disabled when using retpoline as it is # incompatible with -mindirect-branch=thunk-extern ifdef CONFIG_RETPOLINE KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none) endif |
a436bb7b8
|
838 839 |
include scripts/Makefile.kasan include scripts/Makefile.extrawarn |
c6d308534
|
840 |
include scripts/Makefile.ubsan |
a86fe3537
|
841 |
|
8cc7af751
|
842 843 844 845 |
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments KBUILD_CPPFLAGS += $(KCPPFLAGS) KBUILD_AFLAGS += $(KAFLAGS) KBUILD_CFLAGS += $(KCFLAGS) |
52bcc3308
|
846 |
|
89ff7131f
|
847 848 |
KBUILD_LDFLAGS_MODULE += --build-id LDFLAGS_vmlinux += --build-id |
18991197b
|
849 |
|
5d7d18f5b
|
850 |
ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
d79a27195
|
851 |
LDFLAGS_vmlinux += $(call ld-option, -X,) |
5d7d18f5b
|
852 |
endif |
5cf896fb6
|
853 854 855 |
ifeq ($(CONFIG_RELR),y) LDFLAGS_vmlinux += --pack-dyn-relocs=relr endif |
80591e61a
|
856 857 |
# make the checker run with the right architecture CHECKFLAGS += --arch=$(ARCH) |
145167650
|
858 859 |
# insure the checker run with the right endianness CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) |
1f2f01b12
|
860 861 |
# the checker needs the correct machine size CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) |
1da177e4c
|
862 |
# Default kernel image to build when no specific target is given. |
070b98bfd
|
863 |
# KBUILD_IMAGE may be overruled on the command line or |
1da177e4c
|
864 865 866 867 868 869 870 871 872 873 874 |
# set in the environment # Also any assignments in arch/$(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 # |
f4d4ffc03
|
875 876 877 878 879 880 881 |
# INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as # an argument if needed. Otherwise it defaults to the kernel install path # export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) # |
1da177e4c
|
882 883 |
# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the |
070b98bfd
|
884 |
# makefile but the argument can be passed to make if needed. |
1da177e4c
|
885 |
# |
df9df036d
|
886 |
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
1da177e4c
|
887 |
export MODLIB |
ac031f26e
|
888 |
# |
3fbb43df9
|
889 890 891 892 |
# 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 value will be used as the options to the strip command. |
2ea038917
|
893 |
|
ac031f26e
|
894 895 |
ifdef INSTALL_MOD_STRIP ifeq ($(INSTALL_MOD_STRIP),1) |
2ea038917
|
896 |
mod_strip_cmd = $(STRIP) --strip-debug |
ac031f26e
|
897 |
else |
2ea038917
|
898 |
mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
ac031f26e
|
899 900 |
endif # INSTALL_MOD_STRIP=1 else |
2ea038917
|
901 |
mod_strip_cmd = true |
ac031f26e
|
902 903 |
endif # INSTALL_MOD_STRIP export mod_strip_cmd |
beb50df39
|
904 905 906 907 908 909 910 |
# CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed # after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP # or CONFIG_MODULE_COMPRESS_XZ. mod_compress_cmd = true ifdef CONFIG_MODULE_COMPRESS ifdef CONFIG_MODULE_COMPRESS_GZIP |
3d1450d54
|
911 |
mod_compress_cmd = gzip -n -f |
beb50df39
|
912 913 |
endif # CONFIG_MODULE_COMPRESS_GZIP ifdef CONFIG_MODULE_COMPRESS_XZ |
3d1450d54
|
914 |
mod_compress_cmd = xz -f |
beb50df39
|
915 916 917 |
endif # CONFIG_MODULE_COMPRESS_XZ endif # CONFIG_MODULE_COMPRESS export mod_compress_cmd |
d9d8d7ed4
|
918 |
ifdef CONFIG_MODULE_SIG_ALL |
3ee550f12
|
919 920 921 |
$(eval $(call config_filename,MODULE_SIG_KEY)) mod_sign_cmd = scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY) certs/signing_key.x509 |
e2a666d52
|
922 923 924 925 |
else mod_sign_cmd = true endif export mod_sign_cmd |
056d28d13
|
926 |
HOST_LIBELF_LIBS = $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf) |
9f0c18aec
|
927 928 |
ifdef CONFIG_STACK_VALIDATION has_libelf := $(call try-run,\ |
056d28d13
|
929 |
echo "int main() {}" | $(HOSTCC) -xc -o /dev/null $(HOST_LIBELF_LIBS) -,1,0) |
9f0c18aec
|
930 931 932 |
ifeq ($(has_libelf),1) objtool_target := tools/objtool FORCE else |
9f0c18aec
|
933 934 935 936 |
SKIP_STACK_VALIDATION := 1 export SKIP_STACK_VALIDATION endif endif |
e00d88804
|
937 |
PHONY += prepare0 |
e2a666d52
|
938 |
|
394053f4a
|
939 |
export MODORDER := $(extmod-prefix)modules.order |
47801c97d
|
940 |
|
1da177e4c
|
941 |
ifeq ($(KBUILD_EXTMOD),) |
cfc411e7f
|
942 |
core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ |
1da177e4c
|
943 944 945 |
vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
37d9fe478
|
946 |
$(net-y) $(net-m) $(libs-y) $(libs-m) $(virt-y))) |
1da177e4c
|
947 |
|
1eaca4b98
|
948 949 950 |
vmlinux-alldirs := $(sort $(vmlinux-dirs) Documentation \ $(patsubst %/,%,$(filter %/, $(init-) $(core-) \ $(drivers-) $(net-) $(libs-) $(virt-)))) |
1da177e4c
|
951 |
|
c99f3918c
|
952 |
build-dirs := $(vmlinux-dirs) |
76cd306d7
|
953 |
clean-dirs := $(vmlinux-alldirs) |
c99f3918c
|
954 |
|
f49821ee3
|
955 956 957 958 |
init-y := $(patsubst %/, %/built-in.a, $(init-y)) core-y := $(patsubst %/, %/built-in.a, $(core-y)) drivers-y := $(patsubst %/, %/built-in.a, $(drivers-y)) net-y := $(patsubst %/, %/built-in.a, $(net-y)) |
1da177e4c
|
959 |
libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
f49821ee3
|
960 961 |
libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y))) virt-y := $(patsubst %/, %/built-in.a, $(virt-y)) |
1da177e4c
|
962 |
|
1f2bfbd00
|
963 |
# Externally visible symbols (used by link-vmlinux.sh) |
d151e9719
|
964 965 |
export KBUILD_VMLINUX_OBJS := $(head-y) $(init-y) $(core-y) $(libs-y2) \ $(drivers-y) $(net-y) $(virt-y) |
3a166fc2d
|
966 |
export KBUILD_VMLINUX_LIBS := $(libs-y1) |
956985705
|
967 |
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
1f2bfbd00
|
968 |
export LDFLAGS_vmlinux |
85f0ae7e4
|
969 |
# used by scripts/Makefile.package |
233c741dc
|
970 |
export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) LICENSES arch include scripts tools) |
9bb482476
|
971 |
|
d151e9719
|
972 |
vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS) |
1da177e4c
|
973 |
|
3fdc7d3fe
|
974 975 |
# Recurse until adjust_autoksyms.sh is satisfied PHONY += autoksyms_recursive |
2441e78b1
|
976 |
ifdef CONFIG_TRIM_UNUSED_KSYMS |
c99f3918c
|
977 |
autoksyms_recursive: descend modules.order |
ba79d401f
|
978 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \ |
865563924
|
979 |
"$(MAKE) -f $(srctree)/Makefile vmlinux" |
2441e78b1
|
980 |
endif |
23121ca2b
|
981 |
|
1f50b80a0
|
982 983 984 985 986 987 |
# For the kernel to actually contain only the needed exported symbols, # we have to build modules as well to determine what those symbols are. # (this can be evaluated only once include/config/auto.conf has been included) ifdef CONFIG_TRIM_UNUSED_KSYMS KBUILD_MODULES := 1 endif |
07a422bb2
|
988 989 990 991 992 |
autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h) $(autoksyms_h): $(Q)mkdir -p $(dir $@) $(Q)touch $@ |
23121ca2b
|
993 |
|
fbe6e37da
|
994 995 996 |
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink) # Final link of vmlinux with optional arch pass after final link |
312a3d091
|
997 |
cmd_link-vmlinux = \ |
d503ac531
|
998 |
$(CONFIG_SHELL) $< $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_vmlinux) ; \ |
fbe6e37da
|
999 |
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) |
2441e78b1
|
1000 |
|
3fdc7d3fe
|
1001 |
vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE |
1f2bfbd00
|
1002 |
+$(call if_changed,link-vmlinux) |
741f98fe2
|
1003 |
|
392885ee8
|
1004 |
targets := vmlinux |
38385f8f0
|
1005 |
# The actual objects are generated when descending, |
1da177e4c
|
1006 |
# make sure no implicit rule kicks in |
c99f3918c
|
1007 |
$(sort $(vmlinux-deps)): descend ; |
1da177e4c
|
1008 |
|
ba97df455
|
1009 |
filechk_kernel.release = \ |
0d0e7718a
|
1010 |
echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
0d0e7718a
|
1011 |
|
83a35e360
|
1012 |
# Store (new) KERNELRELEASE string in include/config/kernel.release |
24512795d
|
1013 |
include/config/kernel.release: FORCE |
0d0e7718a
|
1014 |
$(call filechk,kernel.release) |
cb58455c4
|
1015 |
|
d8821622c
|
1016 1017 1018 1019 |
# Additional helpers built in scripts/ # Carefully list dependencies so we do not try to build scripts twice # in parallel PHONY += scripts |
60df1aee2
|
1020 |
scripts: scripts_basic scripts_dtc |
d8821622c
|
1021 |
$(Q)$(MAKE) $(build)=$(@) |
cb58455c4
|
1022 |
|
1da177e4c
|
1023 |
# Things we need to do before we recursively start building the kernel |
5bb782690
|
1024 1025 1026 1027 |
# 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. |
1da177e4c
|
1028 |
|
a5139fb36
|
1029 |
PHONY += prepare archprepare |
5bb782690
|
1030 |
|
36de077b2
|
1031 |
archprepare: outputmakefile archheaders archscripts scripts include/config/kernel.release \ |
30527cefb
|
1032 |
asm-generic $(version_h) $(autoksyms_h) include/generated/utsrelease.h |
5bb782690
|
1033 |
|
65bba0423
|
1034 |
prepare0: archprepare |
60df1aee2
|
1035 |
$(Q)$(MAKE) $(build)=scripts/mod |
8d36a6236
|
1036 |
$(Q)$(MAKE) $(build)=. |
86feeaa81
|
1037 |
|
1da177e4c
|
1038 |
# All the preparing.. |
b9ab5ebb1
|
1039 |
prepare: prepare0 prepare-objtool |
2c1f4f125
|
1040 |
# Support for using generic headers in asm-generic |
7d0e5c205
|
1041 |
asm-generic := -f $(srctree)/scripts/Makefile.asm-generic obj |
2c1f4f125
|
1042 1043 |
PHONY += asm-generic uapi-asm-generic asm-generic: uapi-asm-generic |
037fc3368
|
1044 1045 |
$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/asm \ generic=include/asm-generic |
2c1f4f125
|
1046 |
uapi-asm-generic: |
037fc3368
|
1047 1048 |
$(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/uapi/asm \ generic=include/uapi/asm-generic |
2c1f4f125
|
1049 |
|
b9ab5ebb1
|
1050 |
PHONY += prepare-objtool |
3b27a0c85
|
1051 |
prepare-objtool: $(objtool_target) |
ef7cfd00b
|
1052 1053 1054 1055 1056 1057 1058 1059 |
ifeq ($(SKIP_STACK_VALIDATION),1) ifdef CONFIG_UNWINDER_ORC @echo "error: Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel" >&2 @false else @echo "warning: Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel" >&2 endif endif |
1da177e4c
|
1060 |
|
1da177e4c
|
1061 1062 1063 1064 1065 1066 1067 |
# Generate some files # --------------------------------------------------------------------------- # KERNELRELEASE can change from a few different places, meaning version.h # needs to be updated, so this check is forced on all builds uts_len := 64 |
63104eec2
|
1068 1069 1070 1071 1072 |
define filechk_utsrelease.h if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ exit 1; \ fi; \ |
ad7740863
|
1073 |
echo \#define UTS_RELEASE \"$(KERNELRELEASE)\" |
63104eec2
|
1074 |
endef |
1da177e4c
|
1075 1076 |
define filechk_version.h |
ad7740863
|
1077 |
echo \#define LINUX_VERSION_CODE $(shell \ |
450c6076a
|
1078 |
expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
ad7740863
|
1079 |
echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))' |
1da177e4c
|
1080 |
endef |
43fee2b23
|
1081 |
$(version_h): FORCE |
1da177e4c
|
1082 |
$(call filechk,version.h) |
223c24a7d
|
1083 |
$(Q)rm -f $(old_version_h) |
1da177e4c
|
1084 |
|
273b281fa
|
1085 |
include/generated/utsrelease.h: include/config/kernel.release FORCE |
63104eec2
|
1086 |
$(call filechk,utsrelease.h) |
179efcb47
|
1087 1088 |
PHONY += headerdep headerdep: |
9663d9890
|
1089 1090 |
$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
179efcb47
|
1091 |
|
1da177e4c
|
1092 |
# --------------------------------------------------------------------------- |
8d730cfb5
|
1093 |
# Kernel headers |
8d730cfb5
|
1094 |
|
e6883b187
|
1095 1096 |
#Default location for installed headers export INSTALL_HDR_PATH = $(objtree)/usr |
6d7162758
|
1097 |
|
59b2bd05f
|
1098 1099 1100 1101 1102 |
quiet_cmd_headers_install = INSTALL $(INSTALL_HDR_PATH)/include cmd_headers_install = \ mkdir -p $(INSTALL_HDR_PATH); \ rsync -mrl --include='*/' --include='*\.h' --exclude='*' \ usr/include $(INSTALL_HDR_PATH) |
e6883b187
|
1103 |
|
8d730cfb5
|
1104 |
PHONY += headers_install |
59b2bd05f
|
1105 1106 |
headers_install: headers $(call cmd,headers_install) |
6520fe556
|
1107 |
|
59b2bd05f
|
1108 |
PHONY += archheaders archscripts |
e6883b187
|
1109 |
|
a5bae54c1
|
1110 |
hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj |
6d7162758
|
1111 |
|
59b2bd05f
|
1112 1113 |
PHONY += headers headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts |
9d022c540
|
1114 |
$(if $(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/Kbuild),, \ |
10b63956f
|
1115 |
$(error Headers not exportable for the $(SRCARCH) architecture)) |
d5470d144
|
1116 1117 |
$(Q)$(MAKE) $(hdr-inst)=include/uapi $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi |
1f85712e6
|
1118 |
|
ecd77a326
|
1119 |
# Deprecated. It is no-op now. |
684753599
|
1120 |
PHONY += headers_check |
ecd77a326
|
1121 1122 |
headers_check: @: |
684753599
|
1123 |
|
e949f4c2d
|
1124 |
ifdef CONFIG_HEADERS_INSTALL |
59b2bd05f
|
1125 |
prepare: headers |
e949f4c2d
|
1126 |
endif |
684753599
|
1127 |
|
bdd7714b6
|
1128 1129 1130 |
PHONY += scripts_unifdef scripts_unifdef: scripts_basic $(Q)$(MAKE) $(build)=scripts scripts/unifdef |
8d730cfb5
|
1131 |
# --------------------------------------------------------------------------- |
5a5da78b3
|
1132 1133 1134 1135 |
# Kernel selftest PHONY += kselftest kselftest: |
2bc84526d
|
1136 |
$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests |
5a5da78b3
|
1137 |
|
17eac6c2d
|
1138 1139 |
kselftest-%: FORCE $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $* |
dcb825a9f
|
1140 |
|
3d6dee7af
|
1141 1142 1143 |
PHONY += kselftest-merge kselftest-merge: $(if $(wildcard $(objtree)/.config),, $(error No .config exists, config your kernel first!)) |
6d3db46c8
|
1144 1145 |
$(Q)find $(srctree)/tools/testing/selftests -name config | \ xargs $(srctree)/scripts/kconfig/merge_config.sh -m $(objtree)/.config |
3e4c6948e
|
1146 |
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig |
3d6dee7af
|
1147 |
|
5a5da78b3
|
1148 |
# --------------------------------------------------------------------------- |
37c8a5faf
|
1149 1150 1151 1152 1153 1154 1155 |
# Devicetree files ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) dtstree := arch/$(SRCARCH)/boot/dts endif ifneq ($(dtstree),) |
a5139fb36
|
1156 |
%.dtb: include/config/kernel.release scripts_dtc |
37c8a5faf
|
1157 |
$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ |
df8e98b00
|
1158 |
PHONY += dtbs dtbs_install dtbs_check |
87863a742
|
1159 |
dtbs: include/config/kernel.release scripts_dtc |
37c8a5faf
|
1160 |
$(Q)$(MAKE) $(build)=$(dtstree) |
87863a742
|
1161 1162 1163 |
ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),) dtbs: dt_binding_check endif |
4f0e3a57d
|
1164 |
dtbs_check: export CHECK_DTBS=1 |
87863a742
|
1165 |
dtbs_check: dtbs |
4f0e3a57d
|
1166 |
|
37c8a5faf
|
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 |
dtbs_install: $(Q)$(MAKE) $(dtbinst)=$(dtstree) ifdef CONFIG_OF_EARLY_FLATTREE all: dtbs endif endif PHONY += scripts_dtc scripts_dtc: scripts_basic $(Q)$(MAKE) $(build)=scripts/dtc |
df8e98b00
|
1179 |
PHONY += dt_binding_check |
4f0e3a57d
|
1180 1181 |
dt_binding_check: scripts_dtc $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings |
37c8a5faf
|
1182 |
# --------------------------------------------------------------------------- |
1da177e4c
|
1183 1184 1185 |
# Modules ifdef CONFIG_MODULES |
070b98bfd
|
1186 |
# By default, build modules as well |
1da177e4c
|
1187 |
|
73d1393eb
|
1188 |
all: modules |
1da177e4c
|
1189 |
|
e4f7a7260
|
1190 1191 1192 1193 1194 1195 |
# 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. ifdef CONFIG_MODVERSIONS KBUILD_BUILTIN := 1 endif |
3fbb43df9
|
1196 |
# Build modules |
551559e13
|
1197 |
# |
3fbb43df9
|
1198 1199 1200 |
# A module can be listed more than once in obj-m resulting in # duplicate lines in modules.order files. Those are removed # using awk while concatenating to the final file. |
1da177e4c
|
1201 |
|
4f1933620
|
1202 |
PHONY += modules |
68980b470
|
1203 |
modules: $(if $(KBUILD_BUILTIN),vmlinux) modules.order modules.builtin |
b805aa0e7
|
1204 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
3a48a9190
|
1205 |
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh |
1da177e4c
|
1206 |
|
c99f3918c
|
1207 1208 |
modules.order: descend $(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(build-dirs)) > $@ |
68980b470
|
1209 |
|
c99f3918c
|
1210 |
modbuiltin-dirs := $(addprefix _modbuiltin_, $(build-dirs)) |
a6c366324
|
1211 |
|
50ef0cdf5
|
1212 |
modules.builtin: $(modbuiltin-dirs) |
c99f3918c
|
1213 |
$(Q)$(AWK) '!x[$$0]++' $(addsuffix /$@, $(build-dirs)) > $@ |
a6c366324
|
1214 |
|
50ef0cdf5
|
1215 1216 1217 1218 1219 |
PHONY += $(modbuiltin-dirs) # tristate.conf is not included from this Makefile. Add it as a prerequisite # here to make it self-healing in case somebody accidentally removes it. $(modbuiltin-dirs): include/config/tristate.conf $(Q)$(MAKE) $(modbuiltin)=$(patsubst _modbuiltin_%,%,$@) |
1da177e4c
|
1220 1221 |
# Target to prepare building external modules |
4f1933620
|
1222 |
PHONY += modules_prepare |
059bc9fc3
|
1223 |
modules_prepare: prepare |
1da177e4c
|
1224 1225 |
# Target to install modules |
4f1933620
|
1226 |
PHONY += modules_install |
1da177e4c
|
1227 |
modules_install: _modinst_ _modinst_post |
4f1933620
|
1228 |
PHONY += _modinst_ |
2da30e703
|
1229 |
_modinst_: |
1da177e4c
|
1230 1231 1232 |
@rm -rf $(MODLIB)/kernel @rm -f $(MODLIB)/source @mkdir -p $(MODLIB)/kernel |
8e9b46679
|
1233 |
@ln -s $(abspath $(srctree)) $(MODLIB)/source |
1da177e4c
|
1234 1235 |
@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ rm -f $(MODLIB)/build ; \ |
7e1c04779
|
1236 |
ln -s $(CURDIR) $(MODLIB)/build ; \ |
1da177e4c
|
1237 |
fi |
1bd9a4680
|
1238 1239 |
@sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order @sed 's:^:kernel/:' modules.builtin > $(MODLIB)/modules.builtin |
898490c01
|
1240 |
@cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ |
b805aa0e7
|
1241 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1242 |
|
50a8ec31c
|
1243 |
# This depmod is only for convenience to give the initial |
1da177e4c
|
1244 1245 |
# boot a modules.dep even before / is mounted read-write. However the # boot script depmod is the master version. |
4f1933620
|
1246 |
PHONY += _modinst_post |
6d128e1e7
|
1247 |
_modinst_post: _modinst_ |
50a8ec31c
|
1248 |
$(call cmd,depmod) |
1da177e4c
|
1249 |
|
d890f510c
|
1250 1251 1252 1253 1254 |
ifeq ($(CONFIG_MODULE_SIG), y) PHONY += modules_sign modules_sign: $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign endif |
1da177e4c
|
1255 1256 1257 1258 |
else # CONFIG_MODULES # Modules not configured # --------------------------------------------------------------------------- |
612e47cec
|
1259 1260 |
PHONY += modules modules_install modules modules_install: |
5369f5502
|
1261 1262 1263 1264 1265 |
@echo >&2 @echo >&2 "The present kernel configuration has modules disabled." @echo >&2 "Type 'make config' and enable loadable module support." @echo >&2 "Then build a kernel with module support enabled." @echo >&2 |
1da177e4c
|
1266 1267 1268 |
@exit 1 endif # CONFIG_MODULES |
1da177e4c
|
1269 1270 1271 1272 1273 1274 1275 1276 |
### # Cleaning is done on three levels. # make clean Delete most generated files # Leave enough to build external modules # make mrproper Delete the current configuration, and all generated files # make distclean Remove editor backup files, patch leftover files and the like # Directories & files removed with 'make clean' |
b7dca6dd1
|
1277 |
CLEAN_DIRS += include/ksym |
898490c01
|
1278 |
CLEAN_FILES += modules.builtin.modinfo |
1da177e4c
|
1279 1280 |
# Directories & files removed with 'make mrproper' |
d6fc9fcba
|
1281 |
MRPROPER_DIRS += include/config include/generated \ |
46a63d4b0
|
1282 1283 |
arch/$(SRCARCH)/include/generated .tmp_objdiff \ debian/ snap/ tar-install/ |
278ae6040
|
1284 |
MRPROPER_FILES += .config .config.old .version \ |
46457133a
|
1285 |
Module.symvers \ |
fb1179499
|
1286 1287 |
signing_key.pem signing_key.priv signing_key.x509 \ x509.genkey extra_certificates signing_key.x509.keyid \ |
46a63d4b0
|
1288 1289 |
signing_key.x509.signer vmlinux-gdb.py \ *.spec |
1da177e4c
|
1290 |
|
46457133a
|
1291 1292 1293 |
# Directories & files removed with 'make distclean' DISTCLEAN_DIRS += DISTCLEAN_FILES += tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS |
1da177e4c
|
1294 1295 1296 1297 |
# clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) |
1da177e4c
|
1298 |
|
76cd306d7
|
1299 |
PHONY += archclean vmlinuxclean |
1da177e4c
|
1300 |
|
bd1ee804a
|
1301 1302 |
vmlinuxclean: $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
fbe6e37da
|
1303 |
$(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) clean) |
bd1ee804a
|
1304 1305 |
clean: archclean vmlinuxclean |
1da177e4c
|
1306 1307 1308 1309 1310 |
# mrproper - Delete all generated files, including .config # mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
cb43fb577
|
1311 |
mrproper-dirs := $(addprefix _mrproper_,scripts) |
1da177e4c
|
1312 |
|
b421b8a6c
|
1313 |
PHONY += $(mrproper-dirs) mrproper |
1da177e4c
|
1314 1315 |
$(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
b421b8a6c
|
1316 |
mrproper: clean $(mrproper-dirs) |
1da177e4c
|
1317 1318 1319 1320 1321 |
$(call cmd,rmdirs) $(call cmd,rmfiles) # distclean # |
46457133a
|
1322 1323 |
distclean: rm-dirs := $(wildcard $(DISTCLEAN_DIRS)) distclean: rm-files := $(wildcard $(DISTCLEAN_FILES)) |
4f1933620
|
1324 |
PHONY += distclean |
1da177e4c
|
1325 1326 |
distclean: mrproper |
46457133a
|
1327 1328 |
$(call cmd,rmdirs) $(call cmd,rmfiles) |
1da177e4c
|
1329 |
@find $(srctree) $(RCS_FIND_IGNORE) \ |
070b98bfd
|
1330 |
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
f78271dfb
|
1331 1332 |
-o -name '*.bak' -o -name '#*#' -o -name '*%' \ -o -name 'core' \) \ |
1da177e4c
|
1333 1334 1335 1336 1337 |
-type f -print | xargs rm -f # Packaging of the kernel to various formats # --------------------------------------------------------------------------- |
1da177e4c
|
1338 |
|
bafb67470
|
1339 |
%src-pkg: FORCE |
000ec95fb
|
1340 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@ |
031ecc6de
|
1341 |
%pkg: include/config/kernel.release FORCE |
000ec95fb
|
1342 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@ |
1da177e4c
|
1343 1344 1345 |
# Brief documentation of the typical targets used # --------------------------------------------------------------------------- |
5dffbe811
|
1346 |
boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
a1e7b7bb1
|
1347 |
boards := $(sort $(notdir $(boards))) |
5dffbe811
|
1348 1349 |
board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1da177e4c
|
1350 |
|
fe69b420d
|
1351 |
PHONY += help |
1da177e4c
|
1352 1353 |
help: @echo 'Cleaning targets:' |
5ea084ef9
|
1354 |
@echo ' clean - Remove most generated files but keep the config and' |
5cc8d246d
|
1355 |
@echo ' enough build support to build external modules' |
5ea084ef9
|
1356 |
@echo ' mrproper - Remove all generated files + config + various backup files' |
5cc8d246d
|
1357 |
@echo ' distclean - mrproper + remove editor backup and patch files' |
1da177e4c
|
1358 1359 1360 1361 1362 1363 1364 1365 |
@echo '' @echo 'Configuration targets:' @$(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' |
9cc5d74c8
|
1366 |
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1da177e4c
|
1367 |
@echo ' dir/ - Build all files in dir and below' |
40ab87a40
|
1368 |
@echo ' dir/file.[ois] - Build specified target only' |
433db3e26
|
1369 1370 |
@echo ' dir/file.ll - Build the LLVM assembly file' @echo ' (requires compiler support for LLVM assembly generation)' |
627189797
|
1371 1372 |
@echo ' dir/file.lst - Build specified mixed source/assembly target only' @echo ' (requires a recent binutils and recent build (System.map))' |
155ad605b
|
1373 |
@echo ' dir/file.ko - Build module including final link' |
c4d5ee67c
|
1374 |
@echo ' modules_prepare - Set up for building external modules' |
1da177e4c
|
1375 1376 |
@echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' |
f4ed1009f
|
1377 |
@echo ' gtags - Generate GNU GLOBAL index' |
3f1d9a6ce
|
1378 1379 1380 |
@echo ' kernelrelease - Output the release version string (use with make -s)' @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' @echo ' image_name - Output the image name (use with make -s)' |
2fb9b1bd9
|
1381 |
@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
59df3230f
|
1382 |
echo ' (default: $(INSTALL_HDR_PATH))'; \ |
2fb9b1bd9
|
1383 |
echo '' |
31b8cc807
|
1384 |
@echo 'Static analysers:' |
1da177e4c
|
1385 1386 |
@echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' |
aa025e7d5
|
1387 |
@echo ' versioncheck - Sanity check on version.h usage' |
ec2d987f9
|
1388 |
@echo ' includecheck - Check for duplicate included header files' |
295ac0518
|
1389 |
@echo ' export_report - List the usages of all exported symbols' |
74425eee7
|
1390 |
@echo ' headerdep - Detect inclusion cycles in headers' |
7f855fc80
|
1391 |
@echo ' coccicheck - Check with Coccinelle' |
74425eee7
|
1392 |
@echo '' |
eb8305aec
|
1393 1394 1395 |
@echo 'Tools:' @echo ' nsdeps - Generate missing symbol namespace dependencies' @echo '' |
31b8cc807
|
1396 |
@echo 'Kernel selftest:' |
5a5da78b3
|
1397 1398 1399 |
@echo ' kselftest - Build and run kernel selftest (run as root)' @echo ' Build, install, and boot kernel before' @echo ' running kselftest on it' |
dcb825a9f
|
1400 |
@echo ' kselftest-clean - Remove all generated kselftest files' |
bbfe63b60
|
1401 |
@echo ' kselftest-merge - Merge all the config dependencies of kselftest to existing' |
3d6dee7af
|
1402 |
@echo ' .config.' |
5a5da78b3
|
1403 |
@echo '' |
37c8a5faf
|
1404 1405 |
@$(if $(dtstree), \ echo 'Devicetree:'; \ |
7aa8dd91d
|
1406 1407 1408 1409 |
echo '* dtbs - Build device tree blobs for enabled boards'; \ echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'; \ echo ' dt_binding_check - Validate device tree binding documents'; \ echo ' dtbs_check - Validate device tree source files';\ |
37c8a5faf
|
1410 |
echo '') |
31b8cc807
|
1411 1412 1413 1414 |
@echo 'Userspace tools targets:' @echo ' use "make tools/help"' @echo ' or "cd tools; make help"' @echo '' |
1da177e4c
|
1415 |
@echo 'Kernel packaging:' |
000ec95fb
|
1416 |
@$(MAKE) -f $(srctree)/scripts/Makefile.package help |
1da177e4c
|
1417 1418 |
@echo '' @echo 'Documentation targets:' |
cb43fb577
|
1419 |
@$(MAKE) -f $(srctree)/Documentation/Makefile dochelp |
1da177e4c
|
1420 |
@echo '' |
01dee1881
|
1421 |
@echo 'Architecture specific targets ($(SRCARCH)):' |
1da177e4c
|
1422 |
@$(if $(archhelp),$(archhelp),\ |
01dee1881
|
1423 |
echo ' No architecture specific help defined for $(SRCARCH)') |
1da177e4c
|
1424 1425 1426 1427 1428 1429 |
@echo '' @$(if $(boards), \ $(foreach b, $(boards), \ printf " %-24s - Build for %s\ " $(b) $(subst _defconfig,,$(b));) \ echo '') |
5dffbe811
|
1430 1431 1432 1433 1434 1435 1436 |
@$(if $(board-dirs), \ $(foreach b, $(board-dirs), \ printf " %-16s - Show %s-specific targets\ " help-$(b) $(b);) \ printf " %-16s - Show all of the above\ " help-boards; \ echo '') |
1da177e4c
|
1437 1438 |
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
45d506bd6
|
1439 |
@echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1da177e4c
|
1440 |
@echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
9ba26a728
|
1441 |
@echo ' make C=1 [targets] Check re-compiled c source with $$CHECK (sparse by default)' |
701842e3b
|
1442 |
@echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
af07ce3e7
|
1443 |
@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
e27128db6
|
1444 |
@echo ' make W=n [targets] Enable extra build checks, n=1,2,3 where' |
28bc20dcc
|
1445 1446 1447 |
@echo ' 1: warnings which may be relevant and do not occur too often' @echo ' 2: warnings which occur quite often but may still be relevant' @echo ' 3: more obscure warnings, can most likely be ignored' |
a6de553da
|
1448 |
@echo ' Multiple levels can be combined with W=12 or W=123' |
1da177e4c
|
1449 1450 1451 |
@echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' |
5dffbe811
|
1452 1453 1454 |
help-board-dirs := $(addprefix help-,$(board-dirs)) help-boards: $(help-board-dirs) |
fbae4d585
|
1455 |
boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))) |
5dffbe811
|
1456 1457 1458 1459 1460 1461 1462 1463 |
$(help-board-dirs): help-%: @echo 'Architecture specific targets ($(SRCARCH) $*):' @$(if $(boards-per-dir), \ $(foreach b, $(boards-per-dir), \ printf " %-24s - Build for %s\ " $*/$(b) $(subst _defconfig,,$(b));) \ echo '') |
1da177e4c
|
1464 1465 |
# Documentation targets # --------------------------------------------------------------------------- |
e8939222d
|
1466 1467 |
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ linkcheckdocs dochelp refcheckdocs |
22cba31ba
|
1468 |
PHONY += $(DOC_TARGETS) |
bc7b752a7
|
1469 |
$(DOC_TARGETS): |
cb43fb577
|
1470 |
$(Q)$(MAKE) $(build)=Documentation $@ |
1da177e4c
|
1471 |
|
67274c083
|
1472 1473 1474 1475 |
# Misc # --------------------------------------------------------------------------- PHONY += scripts_gdb |
7a739ce51
|
1476 |
scripts_gdb: prepare0 |
1e5ff84ff
|
1477 |
$(Q)$(MAKE) $(build)=scripts/gdb |
8d2e52003
|
1478 |
$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py) |
67274c083
|
1479 1480 1481 1482 |
ifdef CONFIG_GDB_SCRIPTS all: scripts_gdb endif |
1da177e4c
|
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 |
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 |
070b98bfd
|
1499 |
# Install the modules built in the module directory |
1da177e4c
|
1500 1501 1502 1503 |
# Assumes install directory is already created # We are always building modules KBUILD_MODULES := 1 |
1da177e4c
|
1504 |
|
4f1933620
|
1505 |
PHONY += $(objtree)/Module.symvers |
1da177e4c
|
1506 1507 1508 1509 1510 1511 |
$(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 ) |
c99f3918c
|
1512 1513 1514 |
build-dirs := $(KBUILD_EXTMOD) PHONY += modules modules: descend $(objtree)/Module.symvers |
b805aa0e7
|
1515 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1da177e4c
|
1516 |
|
4f1933620
|
1517 |
PHONY += modules_install |
a67dc21a3
|
1518 |
modules_install: _emodinst_ _emodinst_post |
e63046630
|
1519 |
|
4f1933620
|
1520 1521 |
install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) PHONY += _emodinst_ |
a67dc21a3
|
1522 |
_emodinst_: |
a67dc21a3
|
1523 |
$(Q)mkdir -p $(MODLIB)/$(install-dir) |
b805aa0e7
|
1524 |
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1da177e4c
|
1525 |
|
4f1933620
|
1526 |
PHONY += _emodinst_post |
a67dc21a3
|
1527 1528 |
_emodinst_post: _emodinst_ $(call cmd,depmod) |
76cd306d7
|
1529 |
clean-dirs := $(KBUILD_EXTMOD) |
88d7be031
|
1530 |
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1da177e4c
|
1531 |
|
d4945049a
|
1532 1533 1534 |
PHONY += / /: @echo >&2 '"$(MAKE) /" is no longer supported. Please use "$(MAKE) ./" instead.' |
fe69b420d
|
1535 |
PHONY += help |
1da177e4c
|
1536 1537 1538 1539 1540 1541 1542 1543 |
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 '' |
06300b21f
|
1544 |
|
059bc9fc3
|
1545 |
PHONY += prepare |
1da177e4c
|
1546 |
endif # KBUILD_EXTMOD |
c15a3d8f5
|
1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 |
# Single targets # --------------------------------------------------------------------------- # To build individual files in subdirectories, you can do like this: # # make foo/bar/baz.s # # The supported suffixes for single-target are listed in 'single-targets' # # To build only under specific subdirectories, you can do like this: # # make foo/bar/baz/ ifdef single-build # .ko is special because modpost is needed single-ko := $(sort $(filter %.ko, $(MAKECMDGOALS))) single-no-ko := $(sort $(patsubst %.ko,%.mod, $(MAKECMDGOALS))) $(single-ko): single_modpost @: $(single-no-ko): descend @: ifeq ($(KBUILD_EXTMOD),) # For the single build of in-tree modules, use a temporary file to avoid # the situation of modules_install installing an invalid modules.order. MODORDER := .modules.tmp endif PHONY += single_modpost single_modpost: $(single-no-ko) $(Q){ $(foreach m, $(single-ko), echo $(extmod-prefix)$m;) } > $(MODORDER) $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost KBUILD_MODULES := 1 export KBUILD_SINGLE_TARGETS := $(addprefix $(extmod-prefix), $(single-no-ko)) # trim unrelated directories build-dirs := $(foreach d, $(build-dirs), \ $(if $(filter $(d)/%, $(KBUILD_SINGLE_TARGETS)), $(d))) endif |
c99f3918c
|
1590 1591 1592 1593 1594 1595 1596 1597 |
# Handle descending into subdirectories listed in $(build-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 PHONY += descend $(build-dirs) descend: $(build-dirs) $(build-dirs): prepare |
c15a3d8f5
|
1598 1599 1600 |
$(Q)$(MAKE) $(build)=$@ \ single-build=$(if $(filter-out $@/, $(single-no-ko)),1) \ need-builtin=1 need-modorder=1 |
c99f3918c
|
1601 |
|
76cd306d7
|
1602 1603 1604 1605 |
clean-dirs := $(addprefix _clean_, $(clean-dirs)) PHONY += $(clean-dirs) clean $(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
88d7be031
|
1606 1607 1608 |
clean: $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) |
43f67c981
|
1609 |
@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
ef46d9b3d
|
1610 |
\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \ |
4f0e3a57d
|
1611 1612 |
-o -name '*.ko.*' \ -o -name '*.dtb' -o -name '*.dtb.S' -o -name '*.dt.yaml' \ |
ef46d9b3d
|
1613 |
-o -name '*.dwo' -o -name '*.lst' \ |
1d082773f
|
1614 |
-o -name '*.su' -o -name '*.mod' -o -name '*.ns_deps' \ |
88d7be031
|
1615 |
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
9a8dfb394
|
1616 |
-o -name '*.lex.c' -o -name '*.tab.[ch]' \ |
4fa8bc949
|
1617 |
-o -name '*.asn1.[ch]' \ |
88d7be031
|
1618 1619 |
-o -name '*.symtypes' -o -name 'modules.order' \ -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
6b90bd4ba
|
1620 |
-o -name '*.c.[012]*.*' \ |
433db3e26
|
1621 |
-o -name '*.ll' \ |
88d7be031
|
1622 |
-o -name '*.gcno' \) -type f -print | xargs rm -f |
1da177e4c
|
1623 1624 |
# Generate tags for editors # --------------------------------------------------------------------------- |
a680eedc6
|
1625 |
quiet_cmd_tags = GEN $@ |
858805b33
|
1626 |
cmd_tags = $(BASH) $(srctree)/scripts/tags.sh $@ |
1da177e4c
|
1627 |
|
f4ed1009f
|
1628 |
tags TAGS cscope gtags: FORCE |
1da177e4c
|
1629 |
$(call cmd,tags) |
eb8305aec
|
1630 1631 1632 1633 1634 1635 1636 1637 |
# Script to generate missing namespace dependencies # --------------------------------------------------------------------------- PHONY += nsdeps nsdeps: modules $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost nsdeps $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1da177e4c
|
1638 1639 |
# Scripts to check various things for consistency # --------------------------------------------------------------------------- |
279f3dd35
|
1640 |
PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
1da177e4c
|
1641 |
includecheck: |
436f876cc
|
1642 |
find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1da177e4c
|
1643 |
-name '*.[hcS]' -type f -print | sort \ |
800074345
|
1644 |
| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1da177e4c
|
1645 1646 |
versioncheck: |
2ee2d2928
|
1647 |
find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1da177e4c
|
1648 |
-name '*.[hcS]' -type f -print | sort \ |
800074345
|
1649 |
| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1da177e4c
|
1650 |
|
74425eee7
|
1651 |
coccicheck: |
858805b33
|
1652 |
$(Q)$(BASH) $(srctree)/scripts/$@ |
74425eee7
|
1653 |
|
1da177e4c
|
1654 1655 |
namespacecheck: $(PERL) $(srctree)/scripts/namespace.pl |
295ac0518
|
1656 1657 |
export_report: $(PERL) $(srctree)/scripts/export_report.pl |
c398ff00f
|
1658 |
PHONY += checkstack kernelrelease kernelversion image_name |
e3ccf6e36
|
1659 |
|
011e3a9ad
|
1660 1661 1662 1663 1664 1665 1666 1667 1668 |
# 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 CHECKSTACK_ARCH := $(ARCH) endif |
1da177e4c
|
1669 1670 |
checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
75dd47472
|
1671 |
$(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1da177e4c
|
1672 |
|
7b8ea53d7
|
1673 1674 |
kernelrelease: @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
01ab17887
|
1675 |
|
cb58455c4
|
1676 |
kernelversion: |
2244cbd8a
|
1677 |
@echo $(KERNELVERSION) |
1da177e4c
|
1678 |
|
c398ff00f
|
1679 1680 |
image_name: @echo $(KBUILD_IMAGE) |
ea01fa9f6
|
1681 |
# Clear a bunch of variables before executing the submake |
f47a23ce2
|
1682 1683 1684 1685 |
ifeq ($(quiet),silent_) tools_silent=s endif |
ea01fa9f6
|
1686 |
tools/: FORCE |
bf35182ff
|
1687 |
$(Q)mkdir -p $(objtree)/tools |
75dd47472
|
1688 |
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ |
ea01fa9f6
|
1689 1690 |
tools/%: FORCE |
bf35182ff
|
1691 |
$(Q)mkdir -p $(objtree)/tools |
75dd47472
|
1692 |
$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $* |
ea01fa9f6
|
1693 |
|
38385f8f0
|
1694 |
# FIXME Should go into a make.lib or something |
1da177e4c
|
1695 1696 1697 1698 1699 1700 1701 |
# =========================================================================== 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) |
bc3c26fe6
|
1702 |
# Run depmod only if we have System.map and depmod is executable |
50a8ec31c
|
1703 |
quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
569658ddd
|
1704 |
cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
5a144a1ac
|
1705 |
$(KERNELRELEASE) |
50a8ec31c
|
1706 |
|
392885ee8
|
1707 1708 |
# read saved command lines for existing targets existing-targets := $(wildcard $(sort $(targets))) |
1da177e4c
|
1709 |
|
b999923c2
|
1710 |
-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) |
1da177e4c
|
1711 |
|
2042b5486
|
1712 1713 1714 |
endif # config-targets endif # mixed-build endif # need-sub-make |
1da177e4c
|
1715 |
|
4f1933620
|
1716 |
PHONY += FORCE |
1da177e4c
|
1717 |
FORCE: |
4f1933620
|
1718 |
|
bd412d81b
|
1719 |
# Declare the contents of the PHONY variable as phony. We keep that |
fe8d0a410
|
1720 |
# information in a variable so we can use it in if_changed and friends. |
4f1933620
|
1721 |
.PHONY: $(PHONY) |