From: Octavian Purdila <tavi.purdila@xxxxxxxxx>
This patch introduces the host operations that define the interface
between the LKL and the host. These operations must be provided either
by a host library or by the application itself.
Cc: Michael Zimmermann <sigmaepsilon92@xxxxxxxxx>
Cc: Patrick Collins <pscollins@xxxxxxxxxx>
Cc: Pierre-Hugues Husson <phh@xxxxxx>
Cc: Yuan Liu <liuyuan@xxxxxxxxxx>
Signed-off-by: Hajime Tazaki <thehajime@xxxxxxxxx>
Signed-off-by: Octavian Purdila <tavi.purdila@xxxxxxxxx>
---
arch/um/lkl/include/asm/host_ops.h | 10 ++++++++++
arch/um/lkl/include/uapi/asm/host_ops.h | 26 +++++++++++++++++++++++++
2 files changed, 36 insertions(+)
create mode 100644 arch/um/lkl/include/asm/host_ops.h
create mode 100644 arch/um/lkl/include/uapi/asm/host_ops.h
diff --git a/arch/um/lkl/include/asm/host_ops.h b/arch/um/lkl/include/asm/host_ops.h
new file mode 100644
index 000000000000..65850f394b79
--- /dev/null
+++ b/arch/um/lkl/include/asm/host_ops.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_LKL_HOST_OPS_H
+#define _ASM_LKL_HOST_OPS_H
+
+#include "irq.h"
+#include <uapi/asm/host_ops.h>
+
+extern struct lkl_host_operations *lkl_ops;
+
+#endif
diff --git a/arch/um/lkl/include/uapi/asm/host_ops.h b/arch/um/lkl/include/uapi/asm/host_ops.h
new file mode 100644
index 000000000000..7cfb0a93e6a6
--- /dev/null
+++ b/arch/um/lkl/include/uapi/asm/host_ops.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_UAPI_LKL_HOST_OPS_H
+#define _ASM_UAPI_LKL_HOST_OPS_H
+
+/* Defined in {posix,nt}-host.c */
+struct lkl_mutex;
+struct lkl_sem;
+struct lkl_tls_key;
+typedef unsigned long lkl_thread_t;
+struct lkl_jmp_buf {
+ unsigned long buf[32];
+};
+
+/**
+ * lkl_host_operations - host operations used by the Linux kernel
+ *
+ * These operations must be provided by a host library or by the application
+ * itself.
+ *
+ */
+struct lkl_host_operations {
+};
+
+void lkl_bug(const char *fmt, ...);
+
+#endif
--
2.21.0 (Apple Git-122.2)
