rtt更新

rt-thread/components/lwp/vdso/kernel/vdso.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2006-2024 RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2024-07-04     rcitach        init ver.
+ */
+
+#ifndef _VDSO_H
+#define _VDSO_H
+
+#include <lwp.h>
+#include <mmu.h>
+#include <vdso_config.h>
+#include <vdso_datapage.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char __vdso_text_start[];
+extern char __vdso_text_end[];
+
+#define ELF_HEAD "\177ELF"
+#define ELF_HEAD_LEN 4
+#define MAX_PAGES 5
+
+#define __page_aligned_data	__attribute__((section(".data.vdso.datapage"))) __attribute__((aligned(VDSO_PAGE_SIZE)))
+
+int arch_setup_additional_pages(struct rt_lwp *lwp);
+void rt_vdso_update_glob_time(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VDSO_H */

rt-thread/components/lwp/vdso/kernel/vdso_data.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2006-2024 RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2024-07-04     rcitach        init ver.
+ */
+
+#ifndef _VDSO_KDATA_H
+#define _VDSO_KDATA_H
+
+#include <rtatomic.h>
+#include <vdso_datapage.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern struct vdso_data *vdso_data;
+
+rt_inline
+struct vdso_data *_get_k_vdso_data(void)
+{
+    return vdso_data;
+}
+#define get_k_vdso_data _get_k_vdso_data
+
+rt_inline
+void rt_vdso_write_begin(struct vdso_data *vd)
+{
+    rt_atomic_add(&vd[CS_HRES_COARSE].seq, 1);
+    rt_atomic_add(&vd[CS_RAW].seq, 1);
+}
+
+rt_inline
+void rt_vdso_write_end(struct vdso_data *vd)
+{
+    rt_atomic_add(&vd[CS_HRES_COARSE].seq, 1);
+    rt_atomic_add(&vd[CS_RAW].seq, 1);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VDSO_KDATA_H */

rt-thread/components/lwp/vdso/kernel/vdso_text.S

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2024-07-04     rcitach        init ver.
+ */
+ 
+#include <vdso_config.h>    
+
+    .globl __vdso_text_start, __vdso_text_end
+    .section .rodata
+    .balign VDSO_PAGE_SIZE
+__vdso_text_start:
+    .incbin VDSO_PATH
+    .balign VDSO_PAGE_SIZE
+__vdso_text_end:
+
+    .previous