6/19 modula2 front end: libgm2/libm2min contents
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This patch set consists of the makefiles, autoconf and a few C sources
to build the libgm2/libm2min libraries.
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+# Makefile for libm2min.
+# Copyright 2013-2022 Free Software Foundation, Inc.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+SUFFIXES = .c .mod .def .o .obj .lo .a .la
+
+ACLOCAL_AMFLAGS = -I . -I .. -I ../config
+
+VPATH = . @srcdir@/../../gcc/m2/gm2-libs-min
+
+# Multilib support.
+MAKEOVERRIDES=
+
+version := $(shell $(CC) -dumpversion)
+
+# Directory in which the compiler finds libraries etc.
+libsubdir = $(libdir)/gcc/$(target_alias)/$(version)
+# Used to install the shared libgcc.
+slibdir = @slibdir@
+
+toolexeclibdir=@toolexeclibdir@
+toolexecdir=@toolexecdir@
+GM2_FOR_TARGET=@GM2_FOR_TARGET@
+
+MULTIDIR := $(shell $(CC) $(CFLAGS) -print-multi-directory)
+MULTIOSDIR := $(shell $(CC) $(CFLAGS) -print-multi-os-directory)
+
+MULTIOSSUBDIR := $(shell if test x$(MULTIOSDIR) != x.; then echo /$(MULTIOSDIR); fi)
+inst_libdir = $(libsubdir)$(MULTISUBDIR)
+inst_slibdir = $(slibdir)$(MULTIOSSUBDIR)
+
+
+# Work around what appears to be a GNU make bug handling MAKEFLAGS
+# values defined in terms of make variables, as is the case for CC and
+# friends when we are called from the top level Makefile.
+AM_MAKEFLAGS = \
+ "GCC_DIR=$(GCC_DIR)" \
+ "GM2_SRC=$(GM2_SRC)" \
+ "AR_FLAGS=$(AR_FLAGS)" \
+ "CC_FOR_BUILD=$(CC_FOR_BUILD)" \
+ "CC_FOR_TARGET=$(CC_FOR_TARGET)" \
+ "GM2_FOR_TARGET=$(GM2_FOR_TARGET)" \
+ "CFLAGS=$(CFLAGS)" \
+ "CXXFLAGS=$(CXXFLAGS)" \
+ "CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \
+ "CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+ "INSTALL=$(INSTALL)" \
+ "INSTALL_DATA=$(INSTALL_DATA)" \
+ "INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
+ "INSTALL_SCRIPT=$(INSTALL_SCRIPT)" \
+ "LDFLAGS=$(LDFLAGS)" \
+ "LIBCFLAGS=$(LIBCFLAGS)" \
+ "LIBCFLAGS_FOR_TARGET=$(LIBCFLAGS_FOR_TARGET)" \
+ "MAKE=$(MAKE)" \
+ "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" \
+ "MULTISUBDIR=$(MULTISUBDIR)" \
+ "MULTIOSDIR=$(MULTIOSDIR)" \
+ "MULTIBUILDTOP=$(MULTIBUILDTOP)" \
+ "MULTIFLAGS=$(MULTIFLAGS)" \
+ "PICFLAG=$(PICFLAG)" \
+ "PICFLAG_FOR_TARGET=$(PICFLAG_FOR_TARGET)" \
+ "SHELL=$(SHELL)" \
+ "RUNTESTFLAGS=$(RUNTESTFLAGS)" \
+ "exec_prefix=$(exec_prefix)" \
+ "infodir=$(infodir)" \
+ "libdir=$(libdir)" \
+ "includedir=$(includedir)" \
+ "prefix=$(prefix)" \
+ "tooldir=$(tooldir)" \
+ "AR=$(AR)" \
+ "AS=$(AS)" \
+ "LD=$(LD)" \
+ "RANLIB=$(RANLIB)" \
+ "NM=$(NM)" \
+ "NM_FOR_BUILD=$(NM_FOR_BUILD)" \
+ "NM_FOR_TARGET=$(NM_FOR_TARGET)" \
+ "DESTDIR=$(DESTDIR)" \
+ "WERROR=$(WERROR)" \
+ "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
+
+# Subdir rules rely on $(FLAGS_TO_PASS)
+FLAGS_TO_PASS = $(AM_MAKEFLAGS)
+
+M2DEFS = libc.def M2RTS.def \
+ SYSTEM.def
+
+M2MODS = M2RTS.mod SYSTEM.mod
+
+libm2mindir = libm2min
+toolexeclib_LTLIBRARIES = libm2min.la
+libm2min_la_SOURCES = $(M2MODS) libc.c
+libm2min_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2min_la_SOURCES)))
+libm2min_la_CFLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs
+libm2min_la_M2FLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs -fno-exceptions \
+ -fno-m2-plugin -fno-scaffold-dynamic -fno-scaffold-main
+libm2min_la_LINK = $(LINK) -version-info $(libtool_VERSION)
+BUILT_SOURCES = SYSTEM.def
+CLEANFILES = SYSTEM.def
+
+M2LIBDIR = /m2/m2min/
+
+.mod.lo:
+ $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(GM2_FOR_TARGET) -c $(CFLAGS_FOR_TARGET) $(LIBCFLAGS) $(libm2min_la_M2FLAGS) $< -o $@
+
+libc.o: $(GM2_SRC)/gm2-libs-min/libc.c
+
+
+SYSTEM.def: Makefile
+ echo "CC = $(CC_FOR_BUILD) CC_FOR_TARGET = $(CC_FOR_TARGET) GM2 = $(GM2) GM2_FOR_TARGET = $(GM2_FOR_TARGET) GM2_FOR_BUILD = $(GM2_FOR_BUILD)"
+ bash $(GM2_SRC)/tools-src/makeSystem -fpim \
+ $(GM2_SRC)/gm2-libs-min/SYSTEM.def \
+ $(GM2_SRC)/gm2-libs-min/SYSTEM.mod \
+ -I$(GM2_SRC)/gm2-libs-min:$(GM2_SRC)/gm2-libs \
+ "$(GM2_FOR_TARGET) -fno-exceptions" $@
+
+install-data-local: force
+ mkdir -p $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)
+ $(INSTALL_DATA) .libs/libm2min.la $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)
+ chmod 644 $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)libm2min.la
+ $(INSTALL_DATA) .libs/libm2min.a $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)
+ chmod 644 $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)libm2min.a
+ $(RANLIB) $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)libm2min.a
+ for i in $(M2DEFS) $(M2MODS) ; do \
+ if [ -f $$i ] ; then \
+ $(INSTALL_DATA) $$i '$(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)'; \
+ elif [ -f @srcdir@/../../gcc/m2/gm2-libs-min/$$i ] ; then \
+ $(INSTALL_DATA) @srcdir@/../../gcc/m2/gm2-libs-min/$$i '$(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)'; \
+ else \
+ echo "cannot find $$i" ; exit 1 ; \
+ fi ; \
+ chmod 644 $(DESTDIR)$(inst_libdir)/$(MULTIDIR)$(M2LIBDIR)$$i ; \
+ done
+
+force:
@@ -0,0 +1,40 @@
+/* libc.c provides minimal stubs for expected symbols used by the rts.
+
+Copyright (C) 2010-2022 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
+
+This file is part of GNU Modula-2.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 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
+General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+void abort (void) __attribute__ ((noreturn));
+void exit (int) __attribute__ ((noreturn));
+
+void abort (void)
+{
+ /* you should add your system dependant code here. */
+ __builtin_unreachable ();
+}
+
+void exit (int i)
+{
+ /* you should add your system dependant code here. */
+ __builtin_unreachable ();
+}