3 # Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; version 2 of the License.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 # Set the following to `true' to make a debuggable build.
20 # Leave this set to `false' for production use.
26 INSTALL_DIR = /usr/local/bin
27 RELEASE_NAME = $(ROOT)-$(VERSION)
29 # override this to make udev look in a different location for it's config files
31 exec_prefix = ${prefix}
32 etcdir = ${prefix}/etc
33 sbindir = ${exec_prefix}/sbin
34 mandir = ${prefix}/usr/share/man
35 hotplugdir = ${etcdir}/hotplug.d/default
36 configdir = ${etcdir}/udev/
39 INSTALL = /usr/bin/install -c
40 INSTALL_PROGRAM = ${INSTALL}
41 INSTALL_DATA = ${INSTALL} -m 644
42 INSTALL_SCRIPT = ${INSTALL_PROGRAM}
45 # place to put our device nodes
46 udevdir = ${prefix}/udev/
48 # Comment out this line to build with something other
49 # than the local version of klibc
52 # If you are running a cross compiler, you may want to set this
53 # to something more interesting, like "arm-linux-". I you want
54 # to compile vs uClibc, that can be done here as well.
55 CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
59 RANLIB = $(CROSS)ranlib
61 export CROSS CC AR STRIP RANLIB
63 # code taken from uClibc to determine the current arch
64 ARCH := ${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
65 -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'}
67 # code taken from uClibc to determine the gcc include dir
68 GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
70 # code taken from uClibc to determine the libgcc.a filename
71 GCC_LIB := $(shell $(CC) -print-libgcc-file-name )
73 # use '-Os' optimization if available, else use -O2
74 OPTIMIZATION := ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
75 then echo "-Os"; else echo "-O2" ; fi}
77 # add -Wredundant-decls when libsysfs gets cleaned up
78 WARNINGS := -Wall -Wshadow -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations
80 # Some nice architecture specific optimizations
81 ifeq ($(strip $(TARGET_ARCH)),arm)
82 OPTIMIZATION+=-fstrict-aliasing
84 ifeq ($(strip $(TARGET_ARCH)),i386)
85 OPTIMIZATION+=-march=i386
86 OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
87 /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
88 OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \
89 /dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi}
95 # if DEBUG is enabled, then we do not strip or optimize
96 ifeq ($(strip $(DEBUG)),true)
97 CFLAGS += $(WARNINGS) -O1 -g -DDEBUG -D_GNU_SOURCE
98 LDFLAGS += -Wl,-warn-common
99 STRIPCMD = /bin/true -Since_we_are_debugging
101 CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
102 LDFLAGS += -s -Wl,-warn-common
103 STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
106 # If we are using our version of klibc, then we need to build and link it.
107 # Otherwise, use glibc and link statically.
108 ifeq ($(strip $(KLIBC)),true)
109 KLIBC_DIR = klibc/klibc
110 INCLUDE_DIR := $(KLIBC_DIR)/include
111 # arch specific objects
112 LIBGCC = $(shell $(CC) --print-libgcc)
114 $(KLIBC_DIR)/libc.a \
115 # $(KLIBC_DIR)/crt0.o \
117 # $(KLIBC_DIR)/bin-$(ARCH)/start.o \
118 # $(KLIBC_DIR)/bin-$(ARCH)/klibc.a
120 # LIB_OBJS = $(GCC_LIB)
122 LIBC = $(ARCH_LIB_OBJS) $(LIB_OBJS)
123 CFLAGS += -nostdinc -I$(INCLUDE_DIR) -I$(INCLUDE_DIR)/bits32 -I/home/greg/linux/linux-2.5/include -I$(GCCINCDIR) -D__KLIBC__
125 # LDFLAGS = --static --nostdlib -nostartfiles
128 CFLAGS += -I$(GCCINCDIR)
141 SYSFS = libsysfs/sysfs_bus.o \
142 libsysfs/sysfs_class.o \
143 libsysfs/sysfs_device.o \
144 libsysfs/sysfs_dir.o \
145 libsysfs/sysfs_driver.o \
146 libsysfs/sysfs_utils.o \
159 # header files automatically generated
160 GEN_HEADERS = udev_version.h
162 # Rules on how to create the generated header files
164 @echo \#define UDEV_VERSION \"$(VERSION)\" > $@
165 @echo \#define UDEV_CONFIG_DIR \"$(configdir)\" >> $@
166 @echo \#define UDEV_ROOT \"$(udevdir)\" >> $@
169 $(ROOT): $(GEN_HEADERS) $(OBJS)
170 $(CC) $(LDFLAGS) -o $(ROOT) $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
171 $(LD) $(LDFLAGS) -o $(ROOT) $(KLIBC_DIR)/crt0.o $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
175 -find . \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
177 -rm -f core $(ROOT) $(GEN_HEADERS)
178 $(MAKE) -C klibc clean