Add missing declarations to gcc/m2/gm2-libs-min/M2RTS.{def,mod}

This patch adds two missing procedures to
gcc/m2/gm2-libs-min/M2RTS.{def,mod} required for linking.  The
patch also includes test code, changes to
gcc/testsuite/lib/gm2.exp and an expect tcl script to test the
min libraries.

gcc/m2/ChangeLog:

	* gm2-libs-min/M2RTS.def (ConstructModules): New procedure
	declaration.
	(DeconstructModules): New procedure declaration.
	* gm2-libs-min/M2RTS.mod (ConstructModules): New procedure
	dummy implementation.
	(DeconstructModules): New procedure dummy implementation.

gcc/testsuite:

	* lib/gm2.exp (gm2_init_minx): New procedure.
	(gm2_init_min): New procedure calls gm2_init_min with
	dialect flags.
	* gm2/link/min/pass/tiny.mod: New test case.
	* gm2/link/min/pass/link-min-pass.exp: New file.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>

5 files changed, 99 insertions, 0 deletions

diff --git a/gcc/m2/gm2-libs-min/M2RTS.def b/gcc/m2/gm2-libs-min/M2RTS.def
index e3e13b7..147024e 100644
--- a/gcc/m2/gm2-libs-min/M2RTS.def
+++ b/gcc/m2/gm2-libs-min/M2RTS.def
@@ -38,6 +38,10 @@ TYPE
    all these procedures do nothing except satisfy the linker.
 *)
 
+PROCEDURE ConstructModules (applicationmodule: ADDRESS;
+                            argc: INTEGER; argv, envp: ADDRESS) ;
+PROCEDURE DeconstructModules (applicationmodule: ADDRESS;
+                              argc: INTEGER; argv, envp: ADDRESS) ;
 PROCEDURE RegisterModule (name: ADDRESS;
                           init, fini:  ArgCVEnvP;
                           dependencies: PROC) ;
diff --git a/gcc/m2/gm2-libs-min/M2RTS.mod b/gcc/m2/gm2-libs-min/M2RTS.mod
index 643156d..8400567 100644
--- a/gcc/m2/gm2-libs-min/M2RTS.mod
+++ b/gcc/m2/gm2-libs-min/M2RTS.mod
@@ -30,6 +30,18 @@ IMPORT libc, SYSTEM ;
 (* we reference these to ensure they are dragged in to the link *)
 
 
+PROCEDURE ConstructModules (applicationmodule: ADDRESS;
+                            argc: INTEGER; argv, envp: ADDRESS) ;
+BEGIN
+END ConstructModules ;
+
+
+PROCEDURE DeconstructModules (applicationmodule: ADDRESS;
+                              argc: INTEGER; argv, envp: ADDRESS) ;
+BEGIN
+END DeconstructModules ;
+
+
 (* all these procedures do nothing except satisfy the linker.  *)
 
 PROCEDURE ExecuteTerminationProcedures ;
diff --git a/gcc/testsuite/gm2/link/min/pass/link-min-pass.exp b/gcc/testsuite/gm2/link/min/pass/link-min-pass.exp
new file mode 100644
index 0000000..6a6051f
--- /dev/null
+++ b/gcc/testsuite/gm2/link/min/pass/link-min-pass.exp
@@ -0,0 +1,37 @@
+# Expect driver script for GCC Regression Tests
+# Copyright (C) 2023 Free Software Foundation, Inc.
+
+# This program 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 GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# This file was written by Gaius Mulley (gaiusmod2@gmail.com)
+# for GNU Modula-2.
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+# load support procs
+load_lib gm2-torture.exp
+
+gm2_init_min "${srcdir}/gm2/min/pass"
+
+foreach testcase [lsort [glob -nocomplain $srcdir/$subdir/*.mod]] {
+    # If we're only testing specific files and this isn't one of them, skip it.
+    if ![runtest_file_p $runtests $testcase] then {
+	continue
+    }
+
+    gm2-torture $testcase
+}
diff --git a/gcc/testsuite/gm2/link/min/pass/tiny.mod b/gcc/testsuite/gm2/link/min/pass/tiny.mod
new file mode 100644
index 0000000..e1165ed
--- /dev/null
+++ b/gcc/testsuite/gm2/link/min/pass/tiny.mod
@@ -0,0 +1,7 @@
+MODULE tiny ;
+
+(* Does nothing at all, but it should link if -flibs=min is used.  *)
+
+BEGIN
+
+END tiny.
diff --git a/gcc/testsuite/lib/gm2.exp b/gcc/testsuite/lib/gm2.exp
index 450cb4c..9eba195 100644
--- a/gcc/testsuite/lib/gm2.exp
+++ b/gcc/testsuite/lib/gm2.exp
@@ -496,3 +496,42 @@ proc gm2_init_cor { {path ""} args } {
     gm2_link_lib "m2cor m2pim m2iso"
     gm2_init {*}${theIpath} -fpim {*}${theLpath} {*}${args};
 }
+
+
+#
+#  gm2_init_minx - set the default libraries to choose MIN library and
+#                  choose Modula-2, dialect.
+#
+#
+
+proc gm2_init_minx { dialect {path ""} args } {
+    global srcdir;
+    global gccpath;
+
+    set gm2src ${srcdir}/../m2;
+
+    send_log "srcdir is $srcdir\n"
+    send_log "gccpath is $gccpath\n"
+    send_log "gm2src is $gm2src\n"
+
+    set minIpath "${gccpath}/libgm2/libm2min";
+    set minLpath "${gccpath}/libgm2/libm2min/.libs";
+
+    set theIpath "-I${minIpath}";
+    set theLpath "-L${minLpath}";
+
+    if { $path != "" } then {
+	append theIpath " -I"
+	append theIpath ${path}
+    }
+    gm2_init {*}${theIpath} {*}${dialect} {*}${theLpath} {*}${args};
+}
+
+#
+#  gm2_init_min - set the default libraries to choose MIN libraries
+#                 and pim dialect.
+#
+
+proc gm2_init_min { {path ""} args } {
+    gm2_init_minx -fpim {*}${path} {*}${args};
+}