Widen the error message string when invoking the entrypoint (#58)

Author: aldelaro5

src/bootstrap.c

@@ -114,8 +114,12 @@ void mono_doorstop_bootstrap(void *mono_domain) {
  LOG("Error invoking code!");
  if (mono.object_to_string) {
  void *str = mono.object_to_string(exc, NULL);
- char *exc_str = mono.string_to_utf8(str);
+ char *exc_str_n = mono.string_to_utf8(str);
+ char_t *exc_str = widen(exc_str_n);
  LOG("Error message: %s", exc_str);
+ LOG("\n");
+ free(exc_str);
+ mono.free(exc_str_n);
  }
  }
  LOG("Done");

src/runtimes/mono.h

@@ -27,6 +27,7 @@ DEF_CALL(void, config_parse, const char *filename)
 DEF_CALL(void, set_assemblies_path, const char *path)
 DEF_CALL(void *, object_to_string, void *obj, void **exc)
 DEF_CALL(char *, string_to_utf8, void *s)
+DEF_CALL(void, free, void *ptr)
 DEF_CALL(void *, image_open_from_data_with_name, void *data,
  unsigned long data_len, int need_copy, MonoImageOpenStatus *status,
  int refonly, const char *name)