Makefile.klibc

   1 # Makefile for diethotplug
   2 #
   3 # Copyright (C) 2000,2001 Greg Kroah-Hartman <greg@kroah.com>
   4 #
   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.
   8 #
   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.
  13 #
  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
  17 #
  18
  19 # Set the following to `true' to make a debuggable build.
  20 # Leave this set to `false' for production use.
  21 DEBUG = true
  22
  23
  24 ROOT =          udev
  25 VERSION =       0.1
  26 INSTALL_DIR =   /usr/local/bin
  27 RELEASE_NAME =  $(ROOT)-$(VERSION)
  28
  29
  30 # Comment out this line to build with something other
  31 # than the local version of klibc
  32 KLIBC = true
  33
  34 # If you are running a cross compiler, you may want to set this
  35 # to something more interesting, like "arm-linux-".  I you want
  36 # to compile vs uClibc, that can be done here as well.
  37 CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
  38 CC = $(CROSS)gcc
  39 AR = $(CROSS)ar
  40 STRIP = $(CROSS)strip
  41
  42
  43 # code taken from uClibc to determine the current arch
  44 ARCH := ${shell $(CC) -dumpmachine | sed -e s'/-.*//' -e 's/i.86/i386/' -e 's/sparc.*/sparc/' \
  45         -e 's/arm.*/arm/g' -e 's/m68k.*/m68k/' -e 's/ppc/powerpc/g'}
  46
  47 # code taken from uClibc to determine the gcc include dir
  48 GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"}
  49
  50 # code taken from uClibc to determine the libgcc.a filename
  51 GCC_LIB := $(shell $(CC) -print-libgcc-file-name )
  52
  53 # use '-Os' optimization if available, else use -O2
  54 OPTIMIZATION := ${shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
  55                 then echo "-Os"; else echo "-O2" ; fi}
  56
  57 WARNINGS := -Wall -Wshadow -Wstrict-prototypes
  58
  59 # Some nice architecture specific optimizations
  60 ifeq ($(strip $(TARGET_ARCH)),arm)
  61         OPTIMIZATION+=-fstrict-aliasing
  62 endif
  63 ifeq ($(strip $(TARGET_ARCH)),i386)
  64         OPTIMIZATION+=-march=i386
  65         OPTIMIZATION += ${shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc \
  66                 /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi}
  67         OPTIMIZATION += ${shell if $(CC) -malign-functions=0 -malign-jumps=0 -S -o /dev/null -xc \
  68                 /dev/null >/dev/null 2>&1; then echo "-malign-functions=0 -malign-jumps=0"; fi}
  69         CFLAGS+=-pipe
  70 else
  71         CFLAGS+=-pipe
  72 endif
  73
  74 # if DEBUG is enabled, then we do not strip or optimize
  75 ifeq ($(strip $(DEBUG)),true)
  76         CFLAGS  += $(WARNINGS) -O1 -g -DDEBUG -D_GNU_SOURCE
  77         LDFLAGS += -Wl,-warn-common
  78         STRIPCMD = /bin/true -Since_we_are_debugging
  79 else
  80         CFLAGS  += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
  81         LDFLAGS += -s -Wl,-warn-common
  82         STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
  83 endif
  84
  85 # If we are using our version of klibc, then we need to build and link it.
  86 # Otherwise, use glibc and link statically.
  87 ifeq ($(strip $(KLIBC)),true)
  88         KLIBC_DIR       = /home/greg/src/klibc/klibc/klibc
  89         INCLUDE_DIR     := $(KLIBC_DIR)/include
  90         # arch specific objects
  91         LIBGCC          = $(shell $(CC) --print-libgcc)
  92         ARCH_LIB_OBJS = \
  93                         $(KLIBC_DIR)/libc.a     \
  94 #                       $(KLIBC_DIR)/crt0.o     \
  95 #                       $(LIBGCC)
  96 #                       $(KLIBC_DIR)/bin-$(ARCH)/start.o        \
  97 #                       $(KLIBC_DIR)/bin-$(ARCH)/klibc.a
  98
  99 #       LIB_OBJS =      $(GCC_LIB)
 100
 101         LIBC =  $(ARCH_LIB_OBJS) $(LIB_OBJS)
 102         CFLAGS += -nostdinc -I$(INCLUDE_DIR) -I$(INCLUDE_DIR)/bits32 -I/home/greg/linux/linux-2.5/include -I$(GCCINCDIR)
 103         LDFLAGS =
 104 #       LDFLAGS = --static --nostdlib -nostartfiles
 105 else
 106         LIBC =
 107         CFLAGS += -I$(GCCINCDIR)
 108         LIB_OBJS = -lc
 109         LDFLAGS = --static
 110 endif
 111
 112 all: $(LIBC) $(ROOT)
 113
 114 $(ARCH_LIB_OBJS) :
 115         $(MAKE) -C klibc
 116
 117 OBJS =  udev.o          \
 118         logging.o       \
 119         namedev.o
 120
 121
 122 # header files automatically generated
 123 GEN_HEADERS =   udev_version.h
 124
 125 # Rules on how to create the generated header files
 126 udev_version.h:
 127         @echo \#define UDEV_VERSION \"$(VERSION)\" > $@
 128
 129
 130 $(ROOT): $(GEN_HEADERS) $(OBJS)
 131 #       $(CC) $(LDFLAGS) -o $(ROOT) $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
 132         $(LD) $(LDFLAGS) -o $(ROOT) $(KLIBC_DIR)/crt0.o $(OBJS) $(LIB_OBJS) $(ARCH_LIB_OBJS)
 133         $(STRIPCMD) $(ROOT)
 134
 135 clean:
 136         -find . \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
 137          | xargs rm -f
 138         -rm -f core $(ROOT) $(GEN_HEADERS)
 139         $(MAKE) -C klibc clean
 140
 141 DISTFILES = $(shell find . \( -not -name '.' \) -print | grep -v CVS | grep -v "\.tar\.gz" | grep -v "\/\." | grep -v releases | grep -v BitKeeper | grep -v SCCS )
 142 DISTDIR := $(RELEASE_NAME)
 143 srcdir = .
 144 release: $(DISTFILES) clean
 145 #       @echo $(DISTFILES)
 146         @-rm -rf $(DISTDIR)
 147         @mkdir $(DISTDIR)
 148         @-chmod 777 $(DISTDIR)
 149         @for file in $(DISTFILES); do                   \
 150                 if test -d $$file; then                 \
 151                         mkdir $(DISTDIR)/$$file;        \
 152                 else                                    \
 153                         cp -p $$file $(DISTDIR)/$$file; \
 154                 fi;                                     \
 155         done
 156         @tar -c $(DISTDIR) | gzip -9 > $(RELEASE_NAME).tar.gz
 157         @rm -rf $(DISTDIR)
 158         @echo "Built $(RELEASE_NAME).tar.gz"