mjit_worker.c: support MJIT in forked Ruby process

by launching MJIT worker thread in child Ruby process.

See the comment before `mjit_child_after_fork` for details.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65785 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/thread.c b/thread.c
index 37950f0139..8420808c40 100644
--- a/thread.c
+++ b/thread.c
@@ -4438,6 +4438,8 @@ rb_thread_atfork(void)
 
     /* We don't want reproduce CVE-2003-0900. */
     rb_reset_random_seed();
+
+    /* For child, starting MJIT worker thread in this place which is safer than `after_fork_ruby`. */
     mjit_child_after_fork();
 }