[warnings] knock out some 64bit warnings

app/stringtests/string_tests.c

@@ -72,7 +72,7 @@ static void bench_memcpy(void)
             mine = bench_memcpy_routine(&mymemcpy, srcalign, dstalign);
 
             printf("srcalign %zu, dstalign %zu: ", srcalign, dstalign);
-            //printf("   null memcpy %lu msecs\n", null);
+            printf("   null memcpy %lu msecs\n", null);
             printf("libc memcpy %lu msecs, %llu bytes/sec; ", libc, BUFFER_SIZE * ITERATIONS * 1000ULL / libc);
             printf("my memcpy %lu msecs, %llu bytes/sec; ", mine, BUFFER_SIZE * ITERATIONS * 1000ULL / mine);
             printf("\n");

app/tests/fibo.c

@@ -32,7 +32,7 @@
 
 static int fibo_thread(void *argv)
 {
-	int fibo = (int)argv;
+	long fibo = (intptr_t)argv;
 
 	thread_t *t[2];
 
@@ -73,7 +73,7 @@ int fibo(int argc, const cmd_args *argv)
 		return -1;
 	}
 
-	thread_t *t = thread_create("fibo", &fibo_thread, (void *)argv[1].u, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
+	thread_t *t = thread_create("fibo", &fibo_thread, (void *)(uintptr_t)argv[1].u, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
 	thread_resume(t);
 
 	int retcode;

app/tests/thread_tests.c

@@ -144,7 +144,7 @@ static int mutex_thread(void *arg)
 		if (shared != 0)
 			panic("someone else has messed with the shared data\n");
 
-		shared = (int)current_thread;
+		shared = (intptr_t)current_thread;
 		thread_yield();
 		shared = 0;
 
@@ -257,7 +257,7 @@ static int event_signaller(void *arg)
 
 static int event_waiter(void *arg)
 {
-	int count = (int)arg;
+	int count = (intptr_t)arg;
 
 	printf("event waiter starting\n");
 
@@ -347,7 +347,7 @@ static int context_switch_tester(void *arg)
 	int i;
 	uint total_count = 0;
 	const int iter = 100000;
-	int thread_count = (int)arg;
+	int thread_count = (intptr_t)arg;
 
 	event_wait(&context_switch_event);
 
@@ -402,7 +402,7 @@ static volatile int atomic_count;
 
 static int atomic_tester(void *arg)
 {
-	int add = (int)arg;
+	int add = (intptr_t)arg;
 	int i;
 
 	TRACEF("add %d\n", add);