fix(examples/vhdl/array_axis_vcs): add stubs.c

Author: umarcor

examples/vhdl/array_axis_vcs/run.py

@@ -22,10 +22,15 @@
 
 # vu.set_sim_option('modelsim.init_files.after_load',['runall_addwave.do'])
 
+c_nobj = join(root, 'src', 'test', 'stubs.o')
 c_obj = join(root, 'src', 'test', 'main.o')
+print(os.popen('gcc -fPIC -rdynamic -c '+join(root, 'src/**/stubs.c')+' -o '+c_nobj).read())
 print(os.popen('gcc -fPIC -rdynamic -c '+join(root, 'src/**/main.c')+' -o '+c_obj).read())
 
+for tb in lib.get_test_benches(pattern='*tb_py_*', allow_empty=False):
+    tb.set_sim_option('ghdl.elab_flags', ["-Wl," + c_nobj], overwrite=False)
+
 for tb in lib.get_test_benches(pattern='*tb_c_*', allow_empty=False):
-    tb.set_sim_options.get('ghdl.elab_flags', ["-Wl," + " ".join([c_obj])], overwrite=False)
+    tb.set_sim_option('ghdl.elab_flags', ["-Wl," + c_obj], overwrite=False)
 
 vu.main()

examples/vhdl/array_axis_vcs/src/test/stubs.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+extern int ghdl_main (int argc, char **argv);
+
+// main is the entrypoint to the application.
+int main(int argc, char **argv) {
+
+  printf("This is an example of how to wrap a GHDL + VUnit simulation in a C application.\n");
+
+  ghdl_main(argc, argv);
+
+  return 0;
+}