kernel: port sandbox components

vm/memblock.c

@@ -19,12 +19,10 @@
     contributors may be used to endorse or promote products derived from this
     software without specific prior written permission.
  */
-#include "socks/types.h"
-#include <stdio.h>
 #include <stdbool.h>
 #include <limits.h>
-#include <stdlib.h>
-#include <string.h>
+#include <socks/types.h>
+#include <socks/libc/string.h>
 #include <socks/memblock.h>
 
 #define MIN(a, b) ((a) < (b) ? (a) : (b))
@@ -252,8 +250,7 @@ static phys_addr_t do_alloc(size_t size)
 	}
 
 	if (allocated_base == ADDR_MAX) {
-		fprintf(stderr, "memblock: cannot allocate %zu byte buffer!\n", size);
-		abort();
+		return 0;
 	}
 
 	int status = memblock_add_range(&memblock.reserved, allocated_base, size, MEMBLOCK_ALLOC);