内存缓存和ext4完整支持

third_party/lwext4_config/include/string.h

@@ -0,0 +1,15 @@
+#ifndef ZEROOS_STRING_H_
+#define ZEROOS_STRING_H_
+
+#include <stddef.h>
+
+void *memcpy(void *dest, const void *src, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+void *memset(void *dest, int c, size_t n);
+int memcmp(const void *a, const void *b, size_t n);
+size_t strlen(const char *s);
+int strcmp(const char *a, const char *b);
+int strncmp(const char *a, const char *b, size_t n);
+char *strcpy(char *dest, const char *src);
+
+#endif