原始版本

RT_Thread/libcpu/risc-v/common64/asm-generic.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2006-2023 RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-03-12     WangXiaoyao  the first version
+ */
+#ifndef __ASM_GENERIC_H__
+#define __ASM_GENERIC_H__
+
+/* use to mark a start point where every task start from */
+#define START_POINT(funcname)               \
+    .global funcname;                       \
+    .type funcname, %function;	            \
+    funcname:                               \
+    .cfi_sections .debug_frame, .eh_frame;  \
+    .cfi_startproc;                         \
+    .cfi_undefined ra
+
+#define START_POINT_END(name)   \
+    .cfi_endproc;               \
+    .size name, .-name;
+
+#endif /* __ASM_GENERIC_H__ */