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kbuild: trivial fixes in Makefile

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Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg 2006-06-25 00:07:55 +02:00
parent e838db685f
commit 070b98bfda
1 changed files with 41 additions and 41 deletions
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82
Makefile
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@ -71,7 +71,7 @@ endif
# In both cases the working directory must be the root of the kernel src. # In both cases the working directory must be the root of the kernel src.
# 1) O= # 1) O=
# Use "make O=dir/to/store/output/files/" # Use "make O=dir/to/store/output/files/"
# #
# 2) Set KBUILD_OUTPUT # 2) Set KBUILD_OUTPUT
# Set the environment variable KBUILD_OUTPUT to point to the directory # Set the environment variable KBUILD_OUTPUT to point to the directory
# where the output files shall be placed. # where the output files shall be placed.
@ -185,13 +185,13 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \ else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi) else echo sh; fi ; fi)
HOSTCC = gcc HOSTCC = gcc
HOSTCXX = g++ HOSTCXX = g++
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
HOSTCXXFLAGS = -O2 HOSTCXXFLAGS = -O2
# Decide whether to build built-in, modular, or both. # Decide whether to build built-in, modular, or both.
# Normally, just do built-in. # Normally, just do built-in.
KBUILD_MODULES := KBUILD_MODULES :=
KBUILD_BUILTIN := 1 KBUILD_BUILTIN := 1
@ -199,7 +199,7 @@ KBUILD_BUILTIN := 1
# If we have only "make modules", don't compile built-in objects. # If we have only "make modules", don't compile built-in objects.
# When we're building modules with modversions, we need to consider # When we're building modules with modversions, we need to consider
# the built-in objects during the descend as well, in order to # the built-in objects during the descend as well, in order to
# make sure the checksums are uptodate before we record them. # make sure the checksums are up to date before we record them.
ifeq ($(MAKECMDGOALS),modules) ifeq ($(MAKECMDGOALS),modules)
KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
@ -232,7 +232,7 @@ export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
# #
# If $(quiet) is empty, the whole command will be printed. # 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 "quiet_", only the short version will be printed.
# If it is set to "silent_", nothing wil be printed at all, since # If it is set to "silent_", nothing will be printed at all, since
# the variable $(silent_cmd_cc_o_c) doesn't exist. # the variable $(silent_cmd_cc_o_c) doesn't exist.
# #
# A simple variant is to prefix commands with $(Q) - that's useful # A simple variant is to prefix commands with $(Q) - that's useful
@ -268,7 +268,7 @@ MAKEFLAGS += --include-dir=$(srctree)
include $(srctree)/scripts/Kbuild.include include $(srctree)/scripts/Kbuild.include
# Do not use make's built-in rules and variables # Do not use make's built-in rules and variables
# This increases performance and avoid hard-to-debug behaviour # This increases performance and avoid hard-to-debug behavour
MAKEFLAGS += -rR MAKEFLAGS += -rR
# Make variables (CC, etc...) # Make variables (CC, etc...)
@ -306,21 +306,21 @@ LINUXINCLUDE := -Iinclude \
CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common -fno-strict-aliasing -fno-common
AFLAGS := -D__ASSEMBLY__ AFLAGS := -D__ASSEMBLY__
# Read KERNELRELEASE from include/config/kernel.release (if it exists) # Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \ export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \ export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \ export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
# When compiling out-of-tree modules, put MODVERDIR in the module # When compiling out-of-tree modules, put MODVERDIR in the module
@ -358,7 +358,7 @@ endif
# catch them early, and hand them over to scripts/kconfig/Makefile # catch them early, and hand them over to scripts/kconfig/Makefile
# It is allowed to specify more targets when calling make, including # It is allowed to specify more targets when calling make, including
# mixing *config targets and build targets. # mixing *config targets and build targets.
# For example 'make oldconfig all'. # For example 'make oldconfig all'.
# Detect when mixed targets is specified, and make a second invocation # Detect when mixed targets is specified, and make a second invocation
# of make so .config is not included in this case either (for *config). # of make so .config is not included in this case either (for *config).
@ -417,7 +417,7 @@ else
ifeq ($(KBUILD_EXTMOD),) ifeq ($(KBUILD_EXTMOD),)
# Additional helpers built in scripts/ # Additional helpers built in scripts/
# Carefully list dependencies so we do not try to build scripts twice # Carefully list dependencies so we do not try to build scripts twice
# in parrallel # in parallel
PHONY += scripts PHONY += scripts
scripts: scripts_basic include/config/auto.conf scripts: scripts_basic include/config/auto.conf
$(Q)$(MAKE) $(build)=$(@) $(Q)$(MAKE) $(build)=$(@)
@ -443,7 +443,7 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
# If .config is newer than include/config/auto.conf, someone tinkered # If .config is newer than include/config/auto.conf, someone tinkered
# with it and forgot to run make oldconfig. # with it and forgot to run make oldconfig.
# if auto.conf.cmd is missing then we are probarly in a cleaned tree so # 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 # we execute the config step to be sure to catch updated Kconfig files
include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
ifeq ($(KBUILD_EXTMOD),) ifeq ($(KBUILD_EXTMOD),)
@ -460,7 +460,7 @@ endif
# The all: target is the default when no target is given on the # The all: target is the default when no target is given on the
# command line. # command line.
# This allow a user to issue only 'make' to build a kernel including modules # This allow a user to issue only 'make' to build a kernel including modules
# Defaults vmlinux but it is usually overriden in the arch makefile # Defaults vmlinux but it is usually overridden in the arch makefile
all: vmlinux all: vmlinux
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
@ -492,11 +492,11 @@ CHECKFLAGS += $(NOSTDINC_FLAGS)
# warn about C99 declaration after statement # warn about C99 declaration after statement
CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
# disable pointer signedness warnings in gcc 4.0 # disable pointer signed / unsigned warnings in gcc 4.0
CFLAGS += $(call cc-option,-Wno-pointer-sign,) CFLAGS += $(call cc-option,-Wno-pointer-sign,)
# Default kernel image to build when no specific target is given. # Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the commandline or # KBUILD_IMAGE may be overruled on the command line or
# set in the environment # set in the environment
# Also any assignments in arch/$(ARCH)/Makefile take precedence over # Also any assignments in arch/$(ARCH)/Makefile take precedence over
# this default value # this default value
@ -510,7 +510,7 @@ export INSTALL_PATH ?= /boot
# #
# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
# relocations required by build roots. This is not defined in the # relocations required by build roots. This is not defined in the
# makefile but the arguement can be passed to make if needed. # makefile but the argument can be passed to make if needed.
# #
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
@ -556,7 +556,7 @@ libs-y := $(libs-y1) $(libs-y2)
# Build vmlinux # Build vmlinux
# --------------------------------------------------------------------------- # ---------------------------------------------------------------------------
# vmlinux is build from the objects selected by $(vmlinux-init) and # vmlinux is built from the objects selected by $(vmlinux-init) and
# $(vmlinux-main). Most are built-in.o files from top-level directories # $(vmlinux-main). Most are built-in.o files from top-level directories
# in the kernel tree, others are specified in arch/$(ARCH)Makefile. # in the kernel tree, others are specified in arch/$(ARCH)Makefile.
# Ordering when linking is important, and $(vmlinux-init) must be first. # Ordering when linking is important, and $(vmlinux-init) must be first.
@ -607,7 +607,7 @@ quiet_cmd_vmlinux_version = GEN .version
$(MAKE) $(build)=init $(MAKE) $(build)=init
# Generate System.map # Generate System.map
quiet_cmd_sysmap = SYSMAP quiet_cmd_sysmap = SYSMAP
cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
# Link of vmlinux # Link of vmlinux
@ -754,10 +754,10 @@ _localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f)))
localver = $(subst $(space),, \ localver = $(subst $(space),, \
$(shell cat /dev/null $(_localver)) \ $(shell cat /dev/null $(_localver)) \
$(patsubst "%",%,$(CONFIG_LOCALVERSION))) $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
# and if the SCM is know a tag from the SCM is appended. # and if the SCM is know a tag from the SCM is appended.
# The appended tag is determinded by the SCM used. # The appended tag is determined by the SCM used.
# #
# Currently, only git is supported. # Currently, only git is supported.
# Other SCMs can edit scripts/setlocalversion and add the appropriate # Other SCMs can edit scripts/setlocalversion and add the appropriate
@ -823,14 +823,14 @@ prepare0: archprepare FORCE
# All the preparing.. # All the preparing..
prepare prepare-all: prepare0 prepare prepare-all: prepare0
# Leave this as default for preprocessing vmlinux.lds.S, which is now # Leave this as default for preprocessing vmlinux.lds.S, which is now
# done in arch/$(ARCH)/kernel/Makefile # done in arch/$(ARCH)/kernel/Makefile
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
# FIXME: The asm symlink changes when $(ARCH) changes. That's # FIXME: The asm symlink changes when $(ARCH) changes. That's
# hard to detect, but I suppose "make mrproper" is a good idea # hard to detect, but I suppose "make mrproper" is a good idea
# before switching between archs anyway. # before switching between archs anyway.
include/asm: include/asm:
@echo ' SYMLINK $@ -> include/asm-$(ARCH)' @echo ' SYMLINK $@ -> include/asm-$(ARCH)'
@ -870,7 +870,7 @@ depend dep:
ifdef CONFIG_MODULES ifdef CONFIG_MODULES
# By default, build modules as well # By default, build modules as well
all: modules all: modules
@ -968,7 +968,7 @@ clean: archclean $(clean-dirs)
$(call cmd,rmdirs) $(call cmd,rmdirs)
$(call cmd,rmfiles) $(call cmd,rmfiles)
@find . $(RCS_FIND_IGNORE) \ @find . $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' \) \ -o -name '*.symtypes' \) \
-type f -print | xargs rm -f -type f -print | xargs rm -f
@ -993,9 +993,9 @@ PHONY += distclean
distclean: mrproper distclean: mrproper
@find $(srctree) $(RCS_FIND_IGNORE) \ @find $(srctree) $(RCS_FIND_IGNORE) \
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \ \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
-o -name '.*.rej' -o -size 0 \ -o -name '.*.rej' -o -size 0 \
-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
-type f -print | xargs rm -f -type f -print | xargs rm -f
@ -1088,7 +1088,7 @@ else # KBUILD_EXTMOD
# make M=dir modules Make all modules in specified dir # make M=dir modules Make all modules in specified dir
# make M=dir Same as 'make M=dir modules' # make M=dir Same as 'make M=dir modules'
# make M=dir modules_install # make M=dir modules_install
# Install the modules build in the module directory # Install the modules built in the module directory
# Assumes install directory is already created # Assumes install directory is already created
# We are always building modules # We are always building modules
@ -1147,7 +1147,7 @@ clean: rm-dirs := $(MODVERDIR)
clean: $(clean-dirs) clean: $(clean-dirs)
$(call cmd,rmdirs) $(call cmd,rmdirs)
@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
-type f -print | xargs rm -f -type f -print | xargs rm -f
@ -1186,7 +1186,7 @@ else
ALLINCLUDE_ARCHS := $(ARCH) ALLINCLUDE_ARCHS := $(ARCH)
endif endif
else else
#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour. #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour.
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
endif endif