Refactor `mk_mem_initializer_cpp()` so that it is usable externally via a new

function ``mk_mem_initializer_cpp_internal()`` which is called by a
new ``mk_mem_initializer_cpp.py`` script. This will allow other build systems to
generate the ``mem_initializer.cpp`` files.

scripts/mk_mem_initializer_cpp.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+"""
+Scans the source directories for
+memory initializers and finalizers and
+emits and implementation of
+``void mem_initialize()`` and
+``void mem_finalize()`` into ``mem_initializer.cpp``
+in the destination directory.
+"""
+import mk_util
+import argparse
+import logging
+import os
+import sys
+
+def check_dir(path):
+  if not os.path.exists(path):
+    logging.error('"{}" does not exist'.format(path))
+    return 1
+
+  if not os.path.isdir(path):
+    logging.error('"{}" is not a directory'.format(path))
+    return 1
+
+  return 0
+
+
+def main(args):
+  logging.basicConfig(level=logging.INFO)
+  parser = argparse.ArgumentParser(description=__doc__)
+  parser.add_argument("destination_dir", help="destination directory")
+  parser.add_argument("source_dirs", nargs="+",
+                      help="One or more source directories to search")
+  pargs = parser.parse_args(args)
+
+  if check_dir(pargs.destination_dir) != 0:
+    return 1
+
+  for source_dir in pargs.source_dirs:
+    if check_dir(source_dir) != 0:
+      return 1
+
+  mk_util.mk_mem_initializer_cpp_internal(pargs.source_dirs, pargs.destination_dir)
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))
+

scripts/mk_util.py

@@ -2752,6 +2752,13 @@ def mk_all_install_tactic_cpps():
 #    void mem_finalize()
 # These procedures are invoked by the Z3 memory_manager
 def mk_mem_initializer_cpp(cnames, path):
+  component_src_dirs = []
+  for cname in cnames:
+    c = get_component(cname)
+    component_src_dirs.append(c.src_dir)
+  mk_mem_initializer_cpp_internal(component_src_dirs, path)
+
+def mk_mem_initializer_cpp_internal(component_src_dirs, path):
     initializer_cmds = []
     finalizer_cmds   = []
     fullname = os.path.join(path, 'mem_initializer.cpp')
@@ -2761,12 +2768,11 @@ def mk_mem_initializer_cpp(cnames, path):
     # ADD_INITIALIZER with priority
     initializer_prio_pat = re.compile('[ \t]*ADD_INITIALIZER\(\'([^\']*)\',[ \t]*(-?[0-9]*)\)')
     finalizer_pat        = re.compile('[ \t]*ADD_FINALIZER\(\'([^\']*)\'\)')
-    for cname in cnames:
-        c = get_component(cname)
-        h_files = filter(lambda f: f.endswith('.h') or f.endswith('.hpp'), os.listdir(c.src_dir))
+    for component_src_dir in component_src_dirs:
+        h_files = filter(lambda f: f.endswith('.h') or f.endswith('.hpp'), os.listdir(component_src_dir))
         for h_file in h_files:
             added_include = False
-            fin = open(os.path.join(c.src_dir, h_file), 'r')
+            fin = open(os.path.join(component_src_dir, h_file), 'r')
             for line in fin:
                 m = initializer_pat.match(line)
                 if m: