In preparation for moving linux_clone() to a MI path

introduce linux_set_upcall_kse().

2 files changed, 12 insertions, 1 deletions

diff --git a/sys/amd64/linux32/linux.h b/sys/amd64/linux32/linux.h
index 39d4a80..17eded4 100644
--- a/sys/amd64/linux32/linux.h
+++ b/sys/amd64/linux32/linux.h
@@ -920,4 +920,6 @@ struct linux_robust_list_head {
 	l_uintptr_t			pending_list;
 };
 
+int linux_set_upcall_kse(struct thread *td, register_t stack);
+
 #endif /* !_AMD64_LINUX_H_ */
diff --git a/sys/amd64/linux32/linux32_machdep.c b/sys/amd64/linux32/linux32_machdep.c
index d24b7b6..ac205b0 100644
--- a/sys/amd64/linux32/linux32_machdep.c
+++ b/sys/amd64/linux32/linux32_machdep.c
@@ -655,7 +655,7 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
 	 * intact.
 	 */
 	if (args->stack)
-		td2->td_frame->tf_rsp = PTROUT(args->stack);
+		linux_set_upcall_kse(td2, PTROUT(args->stack));
 
 	if (args->flags & LINUX_CLONE_SETTLS)
 		linux_set_cloned_tls(td2, args->tls);
@@ -694,6 +694,15 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
 	return (0);
 }
 
+int
+linux_set_upcall_kse(struct thread *td, register_t stack)
+{
+
+	td->td_frame->tf_rsp = stack;
+
+	return (0);
+}
+
 #define STACK_SIZE  (2 * 1024 * 1024)
 #define GUARD_SIZE  (4 * PAGE_SIZE)