6 files changed, 165 insertions, 0 deletions
diff --git a/testsuite/gna/issue1623/load.c b/testsuite/gna/issue1623/load.c
new file mode 100644
index 000000000..5e45b3a70
--- /dev/null
+++ b/testsuite/gna/issue1623/load.c
@@ -0,0 +1,28 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv) {
+
+  void* h = dlopen(argv[1], RTLD_LAZY);
+  if (!h){
+    fprintf(stderr, "dlopen: %s\n", dlerror());
+    exit(1);
+  }
+
+  typedef int main_t(int, char**);
+
+  main_t* entry = (main_t*)dlsym(h, "entry");
+  if (!entry){
+    fprintf(stderr, "dlsym: %s\n", dlerror());
+    exit(2);
+  }
+
+  printf("Call entry\n");
+  printf("Return from entry: %d\n", entry(0, NULL));
+
+  dlclose(h);
+
+  return 0;
+
+}
diff --git a/testsuite/gna/issue1623/main.c b/testsuite/gna/issue1623/main.c
new file mode 100644
index 000000000..9ab757316
--- /dev/null
+++ b/testsuite/gna/issue1623/main.c
@@ -0,0 +1,27 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+
+extern int ghdl_main(int argc, void** argv);
+
+void sigabrtHandler(int sig_num) {
+  // Reset handler to catch SIGABRT next time. Refer http://en.cppreference.com/w/c/program/signal
+  signal(SIGABRT, sigabrtHandler);
+  printf("SIGABRT caught %d!\n", sig_num);
+  fflush(stdout);
+}
+
+static void exit_handler(void) {
+  printf("This is the exit handler.\n");
+}
+
+int entry(int argc, void** argv) {
+  signal(SIGABRT, sigabrtHandler);
+  atexit(exit_handler);
+
+  printf("Hello entry!\n");
+  int ecode = ghdl_main(argc, argv);
+  printf("Bye entry <%d>!\n", ecode);
+
+  return ecode;
+}
diff --git a/testsuite/gna/issue1623/pyaux.py b/testsuite/gna/issue1623/pyaux.py
new file mode 100644
index 000000000..f7ac33a61
--- /dev/null
+++ b/testsuite/gna/issue1623/pyaux.py
@@ -0,0 +1,42 @@
+from sys import platform
+from pathlib import Path
+import ctypes
+import _ctypes
+from sys import stdout, stderr
+
+
+def dlopen(path):
+    if not Path(path).exists():
+        print('Executable binary not found: ' + path)
+        exit(1)
+    try:
+        return ctypes.CDLL(path)
+    except OSError:
+        print('Loading executables dynamically seems not to be supported on this platform')
+        exit(1)
+
+
+def dlclose(obj):
+    if platform == "win32":
+        _ctypes.FreeLibrary(obj._handle)
+    else:
+        _ctypes.dlclose(obj._handle)
+
+
+def enc_args(args):
+    xargs = (ctypes.POINTER(ctypes.c_char) * len(args))()
+    for idx, arg in enumerate(args):
+        xargs[idx] = ctypes.create_string_buffer(arg.encode('utf-8'))
+    return xargs
+
+
+def run(path, argc, argv):
+    print("PY RUN ENTER")
+    ghdl = dlopen(path)
+    _ret = ghdl.entry(argc, argv)
+    stdout.flush()
+    stderr.flush()
+    dlclose(ghdl)
+    print("PY RUN EXIT <%d>" % _ret)
+    stdout.flush()
+    stderr.flush()
diff --git a/testsuite/gna/issue1623/run.sh b/testsuite/gna/issue1623/run.sh
new file mode 100755
index 000000000..164b68422
--- /dev/null
+++ b/testsuite/gna/issue1623/run.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env sh
+
+set -e
+
+cd $(dirname "$0")
+
+_ext='so'
+case "$(uname)" in
+  MINGW*) _ext='dll';;
+  Darwin*) _ext='dylib';;
+esac
+
+gcc load.c -o load -ldl
+
+for std in '08' '93'; do
+
+  echo "> [$std] Analyze tb.vhd"
+  $GHDL -a --std="$std" tb.vhd
+
+  echo ""
+
+  for item in 'pass' 'fail'; do
+    echo "> [$std] Build tb-${item}.${_ext}"
+    $GHDL -e --std="$std" -shared -Wl,-fPIC -Wl,main.c tb ${item}
+    echo ""
+
+    echo "> [$std] C load and run tb-${item}.${_ext}"
+    ./load "./tb-${item}.${_ext}"
+    echo ""
+
+    echo "> [$std] Python load and run tb-${item}.${_ext}"
+    python3 -c 'from pyaux import run; run("./tb-'"${item}.${_ext}"'", 0, None)'
+    echo ""
+  done
+
+done
+
+rm -rf *.o *."${_ext}" *.cf
diff --git a/testsuite/gna/issue1623/tb.vhd b/testsuite/gna/issue1623/tb.vhd
new file mode 100644
index 000000000..bed04ddac
--- /dev/null
+++ b/testsuite/gna/issue1623/tb.vhd
@@ -0,0 +1,18 @@
+entity tb is
+end entity;
+
+architecture pass of tb is
+begin
+  process begin
+    report "Hello wrapping/exitcb [pass]!" severity note;
+    wait;
+  end process;
+end;
+
+architecture fail of tb is
+begin
+  process begin
+    report "Hello wrapping/exitcb [fail]!" severity failure;
+    wait;
+  end process;
+end;
diff --git a/testsuite/gna/issue1623/testsuite.sh b/testsuite/gna/issue1623/testsuite.sh
new file mode 100755
index 000000000..48122abbb
--- /dev/null
+++ b/testsuite/gna/issue1623/testsuite.sh
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+exit 0
+. ../../testenv.sh
+
+export GHDL_STD_FLAGS=--std=08
+analyze repro.vhdl
+elab_simulate repro
+
+clean
+
+echo "Test successful"