# Makefile for uClibc # # Copyright (C) 2000 by Lineo, inc. # Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org> # # 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. #-------------------------------------------------------- # #There are a number of configurable options in "Config" # #-------------------------------------------------------- TOPDIR=../ include $(TOPDIR)Rules.mak DIRS = misc pwd_grp stdio string termios inet signal stdlib sysdeps unistd # Check if the target architecture has a version script for # libc, and if so, include it when linking. VERSION_SCRIPT:=${shell if [ -f sysdeps/linux/$(TARGET_ARCH)/libc.map ] ; then \ echo "--version-script sysdeps/linux/$(TARGET_ARCH)/libc.map"; fi} LIBNAME_TARGET:=$(TOPDIR)lib/$(LIBNAME) all: halfclean $(LIBNAME_TARGET) $(DO_SHARED) # Some functions are duplicated across subdirs, and when you pass $(AR) # the same object file more than once, it'll add it to the archive multiple # times (boo!). So what we do here is: # - import all the objects (thus we may have dupes) # - delete all the dupes # - re-import certain objects based upon preference # - the sysdeps dir should override all other symbols for example # We need to use shell globbing with obj.* because if we use make's wildcard, # the wildcard will be evaluated when `make` is run instead of when the make # target is evaluated. That means if you run `rm obj.* ; make`, the wildcard # will evaluate to no files :(. $(LIBNAME) shared_$(LIBNAME) ar-target: subdirs $(RM) $(LIBNAME) shared_$(LIBNAME) objs=`cat obj.*` ; \ $(AR) $(ARFLAGS) $(LIBNAME) $$objs && \ $(AR) dN 2 $(LIBNAME) $$objs && \ $(AR) dN 2 $(LIBNAME) $$objs @for objfile in obj.signal \ obj.string.generic obj.string.$(TARGET_ARCH) obj.string \ obj.sysdeps.common obj.sysdeps.$(TARGET_ARCH) ; do \ if [ -e $$objfile ] ; then \ echo $(AR) $(ARFLAGS) $(LIBNAME) $$objfile ; \ objs=`cat $$objfile` ; \ fi ; \ $(AR) $(ARFLAGS) $(LIBNAME) $$objs || exit 1 ; \ done cp $(LIBNAME) shared_$(LIBNAME) $(AR) $(ARFLAGS) $(LIBNAME) misc/internals/static.o $(RANLIB) $(LIBNAME) $(LIBNAME_TARGET): $(LIBNAME) $(INSTALL) -d $(TOPDIR)lib $(RM) $(TOPDIR)lib/$(LIBNAME) $(INSTALL) -m 644 $(LIBNAME) $(TOPDIR)lib shared: shared_$(LIBNAME) $(LD) $(LDFLAGS) $(VERSION_SCRIPT) -soname=$(SHARED_MAJORNAME) -o $(SHARED_FULLNAME) \ --whole-archive shared_$(LIBNAME) \ $(TOPDIR)libc/misc/internals/interp.o --no-whole-archive \ -init __uClibc_init $(TOPDIR)lib/ld-uClibc.so.0 $(LIBGCC) $(LDADD_LIBFLOAT) @true #$(RM) -r tmp $(INSTALL) -d $(TOPDIR)lib $(RM) $(TOPDIR)lib/$(SHARED_FULLNAME) $(INSTALL) -m 644 $(SHARED_FULLNAME) $(TOPDIR)lib $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/libc.so $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/$(SHARED_MAJORNAME) halfclean: @$(RM) $(LIBNAME) shared_$(LIBNAME) uClibc_config.h @$(RM) $(SHARED_FULLNAME) $(SHARED_MAJORNAME) uClibc-0.* libc.so* tags: ctags -R clean: subdirs_clean halfclean @$(RM) -r tmp $(RM) include/asm include/linux include/bits $(RM) obj.* 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 subdirs