This patch set consists of the makefiles, autoconf and a few C sources to build the libgm2/libm2min libraries.
------8<----------8<----------8<----------8<----------8<----------8<---- diff -ruw /dev/null gcc-git-devel-modula2/libgm2/libm2min/Makefile.am --- /dev/null 2022-08-24 16:22:16.888000070 +0100 +++ gcc-git-devel-modula2/libgm2/libm2min/Makefile.am 2022-10-07 20:21:18.738098020 +0100 @@ -0,0 +1,147 @@ +# 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: diff -ruw /dev/null gcc-git-devel-modula2/libgm2/libm2min/libc.c --- /dev/null 2022-08-24 16:22:16.888000070 +0100 +++ gcc-git-devel-modula2/libgm2/libm2min/libc.c 2022-10-07 20:21:18.738098020 +0100 @@ -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.mul...@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 (); +}
