Annotation of /tags/mkinitrd-6_3_3/klibc/Makefile

SRCROOT = .

# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

# kbuild compatibility
export srctree  := $(shell pwd)
export objtree  := $(shell pwd)
export KLIBCSRC := usr/klibc
export VERSION := $(shell cat $(srctree)/$(KLIBCSRC)/version)
export KLIBCINC := usr/include
export KLIBCOBJ := usr/klibc
export KLIBCKERNELSRC ?= linux
export KLIBCKERNELOBJ ?= $(KLIBCKERNELSRC)

export VPATH := $(srctree)

include $(srctree)/scripts/Kbuild.include

KLIBCROSS	?= $(CROSS_COMPILE)
export KLIBCROSS
export CC	:= $(KLIBCROSS)gcc
export LD	:= $(KLIBCROSS)ld
export AR	:= $(KLIBCROSS)ar
export RANLIB	:= $(KLIBCROSS)ranlib
export STRIP	:= $(KLIBCROSS)strip
export NM	:= $(KLIBCROSS)nm
export OBJCOPY  := $(KLIBCROSS)objcopy
export OBJDUMP  := $(KLIBCROSS)objdump

NOSTDINC_FLAGS := -nostdlib -nostdinc -isystem $(shell $(CC) -print-file-name=include)

ARCH	          := $(shell uname -m | sed -e s/i.86/i386/ -e s/parisc64/parisc/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/ -e s/sh.*/sh/)
export KLIBCARCH  ?= $(ARCH)
export KLIBCARCHDIR := $(shell echo $(KLIBCARCH) | sed -e s/s390x/s390/)

export HOSTCC     := gcc
export HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
export PERL       := perl

# Location for installation
export prefix      = /usr
export bindir      = $(prefix)/bin
export libdir      = $(prefix)/lib
export mandir      = $(prefix)/man
export INSTALLDIR  = $(prefix)/lib/klibc
export INSTALLROOT =

# Create a fake .config as present in the kernel tree
# But if it exists leave it alone
$(if $(wildcard $(objtree)/.config),,\
  $(shell cp $(srctree)/defconfig $(objtree)/.config))

# Prefix Make commands with $(Q) to silence them
# Use quiet_cmd_xxx, cmd_xxx to create nice output
# use make V=1 to get verbose output

ifdef V
  ifeq ("$(origin V)", "command line")
    KBUILD_VERBOSE = $(V)
  endif
endif
ifndef KBUILD_VERBOSE
  KBUILD_VERBOSE = 0
endif

ifeq ($(KBUILD_VERBOSE),1)
  quiet =
  Q =
else
  quiet=quiet_
  Q = @
endif

# If the user is running make -s (silent mode), suppress echoing of
# commands

ifneq ($(findstring s,$(MAKEFLAGS)),)
  quiet=silent_
endif

export quiet Q KBUILD_VERBOSE

# Do not print "Entering directory ..."
MAKEFLAGS += --no-print-directory

# Shorthand to call Kbuild.klibc
klibc := -f $(srctree)/scripts/Kbuild.klibc obj

# Very first target
.PHONY: all klcc klibc
all: klcc klibc

$(objtree)/.config: $(srctree)/defconfig $(KLIBCKERNELOBJ)
	@echo "defconfig has changed, please remove or edit .config"
	@false

$(KLIBCKERNELSRC):
	@echo "Cannot find kernel sources."
	@echo "Either make a 'linux' symlink point to a kernel tree "
	@echo "configured for the $(KLIBCARCH) architecture or specify "
	@echo "KLIBCKERNELSRC=<path> to the build."
	@false

rpmbuild = $(shell which rpmbuild 2>/dev/null || which rpm)

klibc.spec: klibc.spec.in $(KLIBCSRC)/version
	sed -e 's/@@VERSION@@/$(VERSION)/g' < $< > $@

# Build klcc - it is the first target
klcc: $(objtree)/.config
	$(Q)$(MAKE) $(klibc)=klcc

klibc: $(objtree)/.config
	$(Q)$(MAKE) $(klibc)=.

test: klibc
	$(Q)$(MAKE) $(klibc)=usr/klibc/tests

help:
	@echo	'Cleaning targets:'
	@echo	'  clean	- Remove most generated files'
	@echo	'  mrproper	- Remove all generated files + config'
	@echo	'  distclean	- mprproper + editor backup + patch files'
	@echo	''
	@echo	'Build targets:'
	@echo	'all		- Build all targets'
	@echo	'install	- Install klibc'
	@echo	'klcc		- Wrapper around gcc to compile against klibc'
	@echo	'test		- Run klibc tests'
	@echo
	@echo	'Build options:'
	@echo	'KLIBCKERNELSRC - Path to a configured linux-2.6 tree'
	@echo	'KLIBCKERNELOBJ - Path to kernel output dir (defaults to KLIBCKERNELSRC)'
	@echo	'make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
	@echo
	@echo	'Sample invocation:'
	@echo	'make  KLIBCKERNELSRC=`pwd`/../linux-2.6'

###
# allow one to say make dir/file.o
# Caveat: works only for .c files where we have a Kbuild file in same dir
%.o: %.c FORCE
	 $(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)

%.s: %.c FORCE
	 $(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)

%.i: %.c FORCE
	 $(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)

FORCE: ;
###
# clean: remove generated files
# mrproper does a full cleaning including .config and linux symlink
FIND_IGNORE := \( -name .git \) -prune -o
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),RM     $(wildcard $(rm-files)))
      cmd_rmfiles = rm -f $(rm-files)
clean:
	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.clean obj=.
	$(Q)find . $(FIND_IGNORE) \
		\( -name *.o -o -name *.a -o -name '.*.cmd' -o \
		   -name '.*.d' -o -name '.*.tmp' \) \
		-type f -print | xargs rm -f

rm-files := $(objtree)/.config linux
distclean mrproper: clean
	 $(Q)find . $(FIND_IGNORE) \
		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
		-o -name '.*.rej' -o -size 0 \
		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
		-type f -print | xargs rm -f
	$(call cmd,rmfiles)

install: all
	$(Q)$(MAKE) -f $(srctree)/scripts/Kbuild.install obj=.

# This does all the prep work needed to turn a freshly exported git repository
# into a release tarball tree
release: klibc.spec
	rm -f maketar.sh .config
1	niro	532	SRCROOT = .
2
3	niro	1122	# DOCUMENTATION
4			# To see a list of typical targets execute "make help"
5
6	niro	532	# kbuild compatibility
7			export srctree := $(shell pwd)
8			export objtree := $(shell pwd)
9			export KLIBCSRC := usr/klibc
10	niro	1122	export VERSION := $(shell cat $(srctree)/$(KLIBCSRC)/version)
11	niro	532	export KLIBCINC := usr/include
12			export KLIBCOBJ := usr/klibc
13	niro	1122	export KLIBCKERNELSRC ?= linux
14			export KLIBCKERNELOBJ ?= $(KLIBCKERNELSRC)
15	niro	532
16	niro	1122	export VPATH := $(srctree)
17
18			include $(srctree)/scripts/Kbuild.include
19
20	niro	532	KLIBCROSS ?= $(CROSS_COMPILE)
21			export KLIBCROSS
22			export CC := $(KLIBCROSS)gcc
23			export LD := $(KLIBCROSS)ld
24			export AR := $(KLIBCROSS)ar
25			export RANLIB := $(KLIBCROSS)ranlib
26			export STRIP := $(KLIBCROSS)strip
27			export NM := $(KLIBCROSS)nm
28			export OBJCOPY := $(KLIBCROSS)objcopy
29			export OBJDUMP := $(KLIBCROSS)objdump
30
31			NOSTDINC_FLAGS := -nostdlib -nostdinc -isystem $(shell $(CC) -print-file-name=include)
32
33	niro	1122	ARCH := $(shell uname -m \| sed -e s/i.86/i386/ -e s/parisc64/parisc/ -e s/sun4u/sparc64/ -e s/arm./arm/ -e s/sa110/arm/ -e s/sh./sh/)
34	niro	532	export KLIBCARCH ?= $(ARCH)
35			export KLIBCARCHDIR := $(shell echo $(KLIBCARCH) \| sed -e s/s390x/s390/)
36
37			export HOSTCC := gcc
38			export HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
39			export PERL := perl
40
41			# Location for installation
42			export prefix = /usr
43			export bindir = $(prefix)/bin
44			export libdir = $(prefix)/lib
45			export mandir = $(prefix)/man
46			export INSTALLDIR = $(prefix)/lib/klibc
47			export INSTALLROOT =
48
49			# Create a fake .config as present in the kernel tree
50			# But if it exists leave it alone
51	niro	1122	$(if $(wildcard $(objtree)/.config),,\
52			$(shell cp $(srctree)/defconfig $(objtree)/.config))
53	niro	532
54			# Prefix Make commands with $(Q) to silence them
55			# Use quiet_cmd_xxx, cmd_xxx to create nice output
56			# use make V=1 to get verbose output
57
58			ifdef V
59			ifeq ("$(origin V)", "command line")
60			KBUILD_VERBOSE = $(V)
61			endif
62			endif
63			ifndef KBUILD_VERBOSE
64			KBUILD_VERBOSE = 0
65			endif
66
67			ifeq ($(KBUILD_VERBOSE),1)
68			quiet =
69			Q =
70			else
71			quiet=quiet_
72			Q = @
73			endif
74
75			# If the user is running make -s (silent mode), suppress echoing of
76			# commands
77
78			ifneq ($(findstring s,$(MAKEFLAGS)),)
79			quiet=silent_
80			endif
81
82			export quiet Q KBUILD_VERBOSE
83
84			# Do not print "Entering directory ..."
85			MAKEFLAGS += --no-print-directory
86
87			# Shorthand to call Kbuild.klibc
88			klibc := -f $(srctree)/scripts/Kbuild.klibc obj
89
90			# Very first target
91			.PHONY: all klcc klibc
92			all: klcc klibc
93
94	niro	1122	$(objtree)/.config: $(srctree)/defconfig $(KLIBCKERNELOBJ)
95	niro	532	@echo "defconfig has changed, please remove or edit .config"
96			@false
97
98	niro	1122	$(KLIBCKERNELSRC):
99			@echo "Cannot find kernel sources."
100			@echo "Either make a 'linux' symlink point to a kernel tree "
101			@echo "configured for the $(KLIBCARCH) architecture or specify "
102			@echo "KLIBCKERNELSRC=<path> to the build."
103	niro	815	@false
104	niro	532
105			rpmbuild = $(shell which rpmbuild 2>/dev/null \|\| which rpm)
106
107			klibc.spec: klibc.spec.in $(KLIBCSRC)/version
108			sed -e 's/@@VERSION@@/$(VERSION)/g' < $< > $@
109
110			# Build klcc - it is the first target
111	niro	1122	klcc: $(objtree)/.config
112	niro	532	$(Q)$(MAKE) $(klibc)=klcc
113
114	niro	1122	klibc: $(objtree)/.config
115	niro	532	$(Q)$(MAKE) $(klibc)=.
116
117			test: klibc
118			$(Q)$(MAKE) $(klibc)=usr/klibc/tests
119
120	niro	1122	help:
121			@echo 'Cleaning targets:'
122			@echo ' clean - Remove most generated files'
123			@echo ' mrproper - Remove all generated files + config'
124			@echo ' distclean - mprproper + editor backup + patch files'
125			@echo ''
126			@echo 'Build targets:'
127			@echo 'all - Build all targets'
128			@echo 'install - Install klibc'
129			@echo 'klcc - Wrapper around gcc to compile against klibc'
130			@echo 'test - Run klibc tests'
131			@echo
132			@echo 'Build options:'
133			@echo 'KLIBCKERNELSRC - Path to a configured linux-2.6 tree'
134			@echo 'KLIBCKERNELOBJ - Path to kernel output dir (defaults to KLIBCKERNELSRC)'
135			@echo 'make V=0\|1 [targets] 0 => quiet build (default), 1 => verbose build'
136			@echo
137			@echo 'Sample invocation:'
138			@echo 'make KLIBCKERNELSRC=`pwd`/../linux-2.6'
139	niro	532
140			###
141			# allow one to say make dir/file.o
142			# Caveat: works only for .c files where we have a Kbuild file in same dir
143			%.o: %.c FORCE
144			$(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)
145
146			%.s: %.c FORCE
147			$(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)
148
149			%.i: %.c FORCE
150			$(Q)$(MAKE) $(klibc)=$(dir $<) $(dir $<)$(notdir $@)
151
152			FORCE: ;
153			###
154			# clean: remove generated files
155			# mrproper does a full cleaning including .config and linux symlink
156			FIND_IGNORE := \( -name .git \) -prune -o
157			quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),RM $(wildcard $(rm-files)))
158			cmd_rmfiles = rm -f $(rm-files)
159			clean:
160			$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.clean obj=.
161			$(Q)find . $(FIND_IGNORE) \
162			\( -name .o -o -name .a -o -name '.*.cmd' -o \
163			-name '..d' -o -name '..tmp' \) \
164			-type f -print \| xargs rm -f
165
166	niro	1122	rm-files := $(objtree)/.config linux
167	niro	532	distclean mrproper: clean
168			$(Q)find . $(FIND_IGNORE) \
169			\( -name '.orig' -o -name '.rej' -o -name '*~' \
170			-o -name '.bak' -o -name '##' -o -name '.*.orig' \
171			-o -name '.*.rej' -o -size 0 \
172			-o -name '%' -o -name '..cmd' -o -name 'core' \) \
173			-type f -print \| xargs rm -f
174			$(call cmd,rmfiles)
175
176			install: all
177			$(Q)$(MAKE) -f $(srctree)/scripts/Kbuild.install obj=.
178
179			# This does all the prep work needed to turn a freshly exported git repository
180			# into a release tarball tree
181			release: klibc.spec
182			rm -f maketar.sh .config