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1 #
2 # (C) Copyright 2006
3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 #
5 # See file CREDITS for list of people who contributed to this
6 # project.
7 #
8 # This program is free software; you can redistribute it and/or
9 # modify it under the terms of the GNU General Public License as
10 # published by the Free Software Foundation; either version 2 of
11 # the License, or (at your option) any later version.
12 #
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 # MA 02111-1307 USA
22 #
23
24 #########################################################################
25
26 _depend: $(obj).depend
27
28 # Split the source files into two camps: those in the current directory, and
29 # those somewhere else. For the first camp we want to support CPPFLAGS_<fname>
30 # and for the second we don't / can't.
31 PWD_SRCS := $(filter $(notdir $(SRCS)),$(SRCS))
32 OTHER_SRCS := $(filter-out $(notdir $(SRCS)),$(SRCS))
33
34 # This is a list of dependency files to generate
35 DEPS := $(basename $(patsubst %,$(obj).depend.%,$(PWD_SRCS)))
36
37 # Join all the dependencies into a single file, in three parts
38 # 1 .Concatenate all the generated depend files together
39 # 2. Add in the deps from OTHER_SRCS which we couldn't process
40 # 3. Add in the HOSTSRCS
41 $(obj).depend: $(src)Makefile $(TOPDIR)/config.mk $(DEPS) $(OTHER_SRCS) \
42 $(HOSTSRCS)
43 cat /dev/null $(DEPS) >$@
44 @for f in $(OTHER_SRCS); do \
45 g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
46 $(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
47 done
48 @for f in $(HOSTSRCS); do \
49 g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
50 $(HOSTCC) -M $(HOSTCPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
51 done
52
53 MAKE_DEPEND = $(CC) -M $(CPPFLAGS) $(EXTRA_CPPFLAGS_DEP) \
54 -MQ $(addsuffix .o,$(obj)$(basename $<)) $< >$@
55
56
57 $(obj).depend.%: %.c
58 $(MAKE_DEPEND)
59
60 $(obj).depend.%: %.S
61 $(MAKE_DEPEND)
62
63 $(HOSTOBJS): $(obj)%.o: %.c
64 $(HOSTCC) $(HOSTCFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
65 $(NOPEDOBJS): $(obj)%.o: %.c
66 $(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
67
68 #########################################################################