111 lines
4.5 KiB
Plaintext
111 lines
4.5 KiB
Plaintext
## Automake asm file rules.
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# Copyright 1996, 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
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# Inc.
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#
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# This file is part of the GNU MP Library.
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#
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# The GNU MP Library is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or (at your
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# option) any later version.
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#
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# The GNU MP Library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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# COMPILE minus CC.
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#
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COMPILE_FLAGS = $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
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$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
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# Flags used for preprocessing (in ansi2knr rules).
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#
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PREPROCESS_FLAGS = $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
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$(CPPFLAGS)
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# Recent versions of automake (1.5 and up for instance) append automake
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# generated suffixes to this $(SUFFIXES) list. This is essential for us,
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# since .c must come after .s, .S and .asm. If .c is before .s, for
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# instance, then in the mpn directory "make" will see add_n.c mentioned in
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# an explicit rule (the ansi2knr stuff) and decide it must have add_n.c,
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# even if add_n.c doesn't exist but add_n.s does. See GNU make
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# documentation "(make)Implicit Rule Search", part 5c.
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#
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# On IRIX 6 native make this doesn't work properly though. Somehow .c
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# remains ahead of .s, perhaps because .c.s is a builtin rule. .asm works
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# fine though, and mpn/mips3 uses this.
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#
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SUFFIXES = .s .S .asm
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# .s assembler, no preprocessing.
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#
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.s.o:
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$(CCAS) $(COMPILE_FLAGS) `test -f '$<' || echo '$(srcdir)/'`$<
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.s.obj:
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$(CCAS) $(COMPILE_FLAGS) `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(srcdir)/$<'; fi`
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.s.lo:
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$(LIBTOOL) --mode=compile --tag=CC $(CCAS) $(COMPILE_FLAGS) `test -f '$<' || echo '$(srcdir)/'`$<
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# can be overridden during development, eg. "make RM_TMP=: mul_1.lo"
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RM_TMP = rm -f
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# .S assembler, preprocessed with cpp.
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#
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# It's necessary to run $(CPP) separately, since it seems not all compilers
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# recognise .S files, in particular "cc" on HP-UX 10 and 11 doesn't (and
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# will silently do nothing if given a .S).
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#
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# For .lo we need a helper script, as described below for .asm.lo.
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#
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.S.o:
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$(CPP) $(PREPROCESS_FLAGS) `test -f '$<' || echo '$(srcdir)/'`$< | grep -v '^#' >tmp-$*.s
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$(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
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$(RM_TMP) tmp-$*.s
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.S.obj:
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$(CPP) $(PREPROCESS_FLAGS) `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(srcdir)/$<'; fi` | grep -v '^#' >tmp-$*.s
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$(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
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$(RM_TMP) tmp-$*.s
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.S.lo:
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$(LIBTOOL) --mode=compile --tag=CC $(top_srcdir)/mpn/cpp-ccas --cpp="$(CPP) $(PREPROCESS_FLAGS)" $(CCAS) $(COMPILE_FLAGS) `test -f '$<' || echo '$(srcdir)/'`$<
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# .asm assembler, preprocessed with m4.
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#
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# .o and .obj are non-PIC and just need m4 followed by a compile.
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#
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# .lo is a bit tricky. Libtool (as of version 1.5) has foo.lo as a little
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# text file, and .libs/foo.o and foo.o as the PIC and non-PIC objects,
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# respectively. It'd be asking for lots of trouble to try to create foo.lo
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# ourselves, so instead arrange to invoke libtool like a --mode=compile, but
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# with a special m4-ccas script which first m4 preprocesses, then compiles.
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# --tag=CC is necessary since foo.asm is otherwise unknown to libtool.
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#
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# Libtool adds -DPIC when building a shared object and the .asm files look
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# for that. But it should be noted that the other PIC flags are on occasion
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# important too, in particular FreeBSD 2.2.8 gas 1.92.3 requires -k before
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# it accepts PIC constructs like @GOT, and gcc adds that flag only under
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# -fPIC. (Later versions of gas are happy to accept PIC stuff any time.)
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#
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.asm.o:
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$(M4) -DOPERATION_$* `test -f '$<' || echo '$(srcdir)/'`$< >tmp-$*.s
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$(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
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$(RM_TMP) tmp-$*.s
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.asm.obj:
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$(M4) -DOPERATION_$* `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(srcdir)/$<'; fi` >tmp-$*.s
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$(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
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$(RM_TMP) tmp-$*.s
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.asm.lo:
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$(LIBTOOL) --mode=compile --tag=CC $(top_srcdir)/mpn/m4-ccas --m4="$(M4)" $(CCAS) $(COMPILE_FLAGS) `test -f '$<' || echo '$(srcdir)/'`$<
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