rusage: Refactor test programs

Change-Id: I846a6416acf903f7fa19db98d4d937c51c10b4af

test/rusage/016_mck.c

@@ -0,0 +1,43 @@
+#define _GNU_SOURCE         /* See feature_test_macros(7) */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <string.h>
+#include "util.h"
+
+#define DEBUG
+
+int sz_anon[] = {
+	4 * (1ULL<<10),
+	2 * (1ULL<<20),
+	1 * (1ULL<<30),
+	134217728};
+
+#define SZ_INDEX 0
+#define NUM_AREAS 1
+
+int main(int argc, char **argv)
+{
+	void *mem;
+	void *newmem;
+	int ret = 0;
+
+	mem = mmap(0, sz_anon[SZ_INDEX], PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	CHKANDJUMP(mem == MAP_FAILED, 255, "mmap failed\n");
+	*((unsigned long *)mem) = 0x123456789abcdef0;
+
+	newmem = mremap(mem, sz_anon[SZ_INDEX], sz_anon[SZ_INDEX + 1],
+			MREMAP_MAYMOVE);
+	CHKANDJUMP(newmem == MAP_FAILED, 255, "mmap failed\n");
+	*((unsigned long *)mem) = 0xbeefbeefbeefbeef;
+
+	munmap(newmem, sz_anon[SZ_INDEX + 1]);
+
+ fn_exit:
+	return ret;
+ fn_fail:
+	goto fn_exit;
+}