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