From: Michalis Pappas <michalis@unikraft.io>
Date: Tue, 25 Mar 2025 14:46:10 +0000 (+0100)
Subject: include/uk/init: Add main thread to init ctx
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=d5a64db13f2143b6d268c7be8919957d7a541b46;p=unikraft%2Funikraft.git

include/uk/init: Add main thread to init ctx

Add a new field to init ctx for the thread that executes main().
If main() does not execute on a separate thread, this is set to
NULL.

Signed-off-by: Michalis Pappas <michalis@unikraft.io>
Approved-by: Andrei Tatar <andrei@unikraft.io>
Approved-by: Sergiu Moga <sergiu@unikraft.io>
Reviewed-by: Andrei Tatar <andrei@unikraft.io>
Reviewed-by: Sergiu Moga <sergiu@unikraft.io>
GitHub-Closes: #1620
---

diff --git a/include/uk/init.h b/include/uk/init.h
index 4bd6472bd..36b4bc153 100644
--- a/include/uk/init.h
+++ b/include/uk/init.h
@@ -39,6 +39,10 @@
 #include <uk/essentials.h>
 #include <uk/prio.h>
 
+#if CONFIG_LIBUKSCHED
+#include <uk/thread.h>
+#endif /* CONFIG_LIBUKSCHED */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -48,6 +52,12 @@ struct uk_init_ctx {
 		int    argc;
 		char **argv;
 	} cmdline;
+#if CONFIG_LIBUKSCHED
+	/* Set if main() executes on a separate thread,
+	 * otherwise NULL.
+	 */
+	struct uk_thread *tmain;
+#endif /* CONFIG_LIBUKSCHED */
 
 	/* reserved for future additions */
 };