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rom/riscv3/romlib/romlib_sec_init.c

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+/****************************************************************************
+ *
+ * Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
+ *
+ * This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
+ * be copied by any method or incorporated into another program without
+ * the express written consent of Aerospace C.Power. This Information or any portion
+ * thereof remains the property of Aerospace C.Power. The Information contained herein
+ * is believed to be accurate and Aerospace C.Power assumes no responsibility or
+ * liability for its use in any way and conveys no license or title under
+ * any patent or copyright and makes no representation or warranty that this
+ * Information is free from patent or copyright infringement.
+ *
+ * ****************************************************************************/
+#include "os_types.h"
+#include "sections.h"
+
+void* memcpy(void* aa, const void* bb, size_t n);
+
+void* memset(void* s, int32_t c, uint32_t size);
+
+static void romlib_data_init(void)
+{
+    uint8_t *start = (uint8_t*)&_data_start;
+    uint8_t *end = (uint8_t*)&_data_end;
+    uint8_t *load = (uint8_t*)&_data_load_addr;
+    int len = (end - start);
+
+    memcpy(start, load, len);
+}
+
+static void romlib_bss_init(void)
+{
+    uint8_t *start = (uint8_t*)&_bss_start;
+    uint8_t *end = (uint8_t*)&_bss_end;
+    int len = (end - start);
+
+    memset(start, 0x0, len);
+}
+
+void romlib_section_init(void) {
+    romlib_data_init();
+    romlib_bss_init();
+}