3 # Copyright (C) 2000 by Lineo, inc.
4 # Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
6 # This program is free software; you can redistribute it and/or modify it under
7 # the terms of the GNU Library General Public License as published by the Free
8 # Software Foundation; either version 2 of the License, or (at your option) any
11 # This program is distributed in the hope that it will be useful, but WITHOUT
12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
16 # You should have received a copy of the GNU Library General Public License
17 # along with this program; if not, write to the Free Software Foundation, Inc.,
18 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 # Derived in part from the Linux-8086 C library, the GNU C Library, and several
21 # other sundry sources. Files within this library are copyright by their
22 # respective copyright holders.
24 #--------------------------------------------------------
26 #There are a number of configurable options in "Config"
28 #--------------------------------------------------------
31 include $(TOPDIR)Rules.mak
33 DIRS = misc pwd_grp stdio string termios inet signal stdlib sysdeps unistd
35 # Check if the target architecture has a version script for
36 # libc, and if so, include it when linking.
37 VERSION_SCRIPT:=${shell if [ -f sysdeps/linux/$(TARGET_ARCH)/libc.map ] ; then \
38 echo "--version-script sysdeps/linux/$(TARGET_ARCH)/libc.map"; fi}
40 LIBNAME_TARGET:=$(TOPDIR)lib/$(LIBNAME)
42 all: halfclean $(LIBNAME_TARGET) $(DO_SHARED)
44 # Some functions are duplicated across subdirs, and when you pass $(AR)
45 # the same object file more than once, it'll add it to the archive multiple
46 # times (boo!). So what we do here is:
47 # - import all the objects (thus we may have dupes)
48 # - delete all the dupes
49 # - re-import certain objects based upon preference
50 # - the sysdeps dir should override all other symbols for example
51 # We need to use shell globbing with obj.* because if we use make's wildcard,
52 # the wildcard will be evaluated when `make` is run instead of when the make
53 # target is evaluated. That means if you run `rm obj.* ; make`, the wildcard
54 # will evaluate to no files :(.
55 $(LIBNAME) shared_$(LIBNAME) ar-target: subdirs
56 $(RM) $(LIBNAME) shared_$(LIBNAME)
58 $(AR) $(ARFLAGS) $(LIBNAME) $$objs && \
59 $(AR) dN 2 $(LIBNAME) $$objs && \
60 $(AR) dN 2 $(LIBNAME) $$objs
61 @for objfile in obj.signal \
62 obj.string.generic obj.string.$(TARGET_ARCH) obj.string \
63 obj.sysdeps.common obj.sysdeps.$(TARGET_ARCH) ; do \
64 if [ -e $$objfile ] ; then \
65 if [ "$(MAKE_IS_SILENT)" = "n" ] ; then \
66 echo $(AR) $(ARFLAGS) $(LIBNAME) $$objfile ; \
68 objs=`cat $$objfile` ; \
70 $(AR) $(ARFLAGS) $(LIBNAME) $$objs || exit 1 ; \
72 cp $(LIBNAME) shared_$(LIBNAME)
73 $(AR) $(ARFLAGS) $(LIBNAME) misc/internals/static.o
76 $(LIBNAME_TARGET): $(LIBNAME)
77 $(INSTALL) -d $(TOPDIR)lib
78 $(RM) $(TOPDIR)lib/$(LIBNAME)
79 $(INSTALL) -m 644 $(LIBNAME) $(TOPDIR)lib
81 shared: shared_$(LIBNAME)
82 $(LD) $(LDFLAGS) $(VERSION_SCRIPT) -soname=$(SHARED_MAJORNAME) -o $(SHARED_FULLNAME) \
83 --whole-archive shared_$(LIBNAME) \
84 $(TOPDIR)libc/misc/internals/interp.o --no-whole-archive \
85 -init __uClibc_init $(TOPDIR)lib/$(UCLIBC_LDSO) $(LIBGCC) $(LDADD_LIBFLOAT)
87 $(INSTALL) -d $(TOPDIR)lib
88 $(RM) $(TOPDIR)lib/$(SHARED_FULLNAME)
89 $(INSTALL) -m 644 $(SHARED_FULLNAME) $(TOPDIR)lib
90 $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/libc.so
91 $(LN) -sf $(SHARED_FULLNAME) $(TOPDIR)lib/$(SHARED_MAJORNAME)
94 @$(RM) $(LIBNAME) shared_$(LIBNAME) uClibc_config.h
95 @$(RM) $(SHARED_FULLNAME) $(SHARED_MAJORNAME) uClibc-0.* libc.so*
100 clean: subdirs_clean halfclean
102 $(RM) include/asm include/linux include/bits
105 subdirs: $(patsubst %, _dir_%, $(DIRS))
106 subdirs_clean: $(patsubst %, _dirclean_%, $(DIRS))
108 $(patsubst %, _dir_%, $(DIRS)) : dummy
109 $(MAKE) -C $(patsubst _dir_%, %, $@)
111 $(patsubst %, _dirclean_%, $(DIRS)) : dummy
112 $(MAKE) -C $(patsubst _dirclean_%, %, $@) clean
114 .PHONY: dummy subdirs