From 6921d943735905ec1f6b7cc3216d957d7e26c755 Mon Sep 17 00:00:00 2001
From: "Bobby R. Bruce" <bbruce@ucdavis.edu>
Date: Mon, 11 Sep 2023 15:25:16 -0700
Subject: [PATCH] python: Recursively create checkpoint dir

While there was code present in "serialize.cc" to create the checkpoint
directory, it did not do recursively. This patch ensures all the
directories are created in a path to the checkpoint directory.

Change-Id: Ibcf7f800358fd89946f550b8cfb0cef8b51fceac
---
 src/python/m5/simulate.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/python/m5/simulate.py b/src/python/m5/simulate.py
index 70ed11a9b6..19d5604568 100644
--- a/src/python/m5/simulate.py
+++ b/src/python/m5/simulate.py
@@ -318,6 +318,10 @@ def checkpoint(dir):
 
     drain()
     memWriteback(root)
+
+    # Recursively create the checkpoint directory if it does not exist.
+    os.makedirs(dir, exist_ok=True)
+
     print("Writing checkpoint")
     _m5.core.serializeAll(dir)