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# Makefile for uClibc
#
# Copyright (C) 2000 by Lineo, inc.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Library General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
# details.
#
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Derived in part from the Linux-8086 C library, the GNU C Library, and several
# other sundry sources. Files within this library are copyright by their
# respective copyright holders.
TOPDIR=../
include $(TOPDIR)Rules.mak
LIBC=$(TOPDIR)libc.a
DIRS:=
CSRC=execl.c execlp.c execv.c execvep.c execvp.c getcwd.c getopt.c \
sleep.c getpass.c sysconf_src.c
# TESTING -- comment this out if it breaks for you
ifeq ($(TARGET_ARCH), $(NATIVE_ARCH))
SYSCONF = sysconf_native
else
SYSCONF = sysconf_$(TARGET_ARCH).c
endif
COBJS=$(patsubst %.c,%.o, $(CSRC))
MSRC=gnu_getopt.c
MOBJ=_gnu_getopt_internal.o gnu_getopt_long.o gnu_getopt_long_only.o
# WARNING! MOBJ _must_ come after COBJS for link to pick getopt
# over gnu_getopt when appropriate.
OBJS=$(COBJS) $(MOBJ)
all: $(SYSCONF) $(OBJS) $(LIBC)
$(LIBC): ar-target subdirs
ar-target: $(OBJS)
$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
# We are cross-compiling so use the generic sysconf.c.
sysconf_$(TARGET_ARCH).c: sysconf.c
@echo warning: sysconf_$(NATIVE_ARCH).c is older then sysconf.c so using generic sysconf.c
@echo To build sysconf_$(NATIVE_ARCH).c run gen_sysconf \> sysconf_$(NATIVE_ARCH).c on
@echo your target platform, place in the unistd directory, and rebuild
cp -f sysconf.c sysconf_src.c
# We are compiling for the native platform, so build an optimized sysconf.c.
sysconf_native: sysconf.c
$(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c sysconf.c -o sysconf_tester.o
$(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c ../sysdeps/linux/common/getpagesize.c -o getpagesize_tester.o
@ld -r -o gen_sysconf_tester.o sysconf_tester.o getpagesize_tester.o
@if nm -s gen_sysconf_tester.o | grep -v "U errno" | grep " U " ;\
then \
echo warning: missing symbols in gen_sysconf_tester.o so using generic sysconf.c ;\
cp -f sysconf.c sysconf_src.c ;\
else \
if ../extra/gcc-uClibc/gcc-uClibc-$(NATIVE_ARCH) -static -D_UCLIBC_GENERATE_SYSCONF_MAIN sysconf.c sysconf_tester.o -o gen_sysconf && \
./gen_sysconf > sysconf_$(NATIVE_ARCH).c ;\
then \
echo successfully built sysconf_$(NATIVE_ARCH).c ;\
else \
echo warning: build of gen_sysconf failed so using generic sysconf.c ;\
cp -f sysconf.c sysconf_$(NATIVE_ARCH).c ;\
fi ;\
fi
sysconf_src.c: sysconf_$(TARGET_ARCH).c
cp -f sysconf_$(TARGET_ARCH).c sysconf_src.c
$(COBJS): %.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
$(MOBJ): $(MSRC)
$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
$(STRIPTOOL) -x -R .note -R .comment $*.o
$(OBJ): Makefile
subdirs: $(patsubst %, _dir_%, $(DIRS))
subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))
$(patsubst %, _dir_%, $(DIRS)) : dummy
$(MAKE) -C $(patsubst _dir_%, %, $@)
$(patsubst %, _dirclean_%, $(DIRS)) : dummy
$(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
.PHONY: dummy
dummy:
clean:
rm -f *.[oa] *~ core gen_sysconf sysconf_*.c
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