1#include <string.h>
2#include <stdlib.h>
3#include <stdint.h>
4#include "test.h"
5
6static char buf[512];
7
8static void *(*volatile pmemcpy)(void *restrict, const void *restrict, size_t);
9
10static void *aligned(void *p) {
11	return (void*)(((uintptr_t)p + 63) & -64);
12}
13
14#define N 80
15static void test_align(int dalign, int salign, int len)
16{
17	char *src = aligned(buf);
18	char *dst = aligned(buf + 128);
19	char *want = aligned(buf + 256);
20	char *p;
21	int i;
22
23	if (salign + len > N || dalign + len > N)
24		abort();
25	for (i = 0; i < N; i++) {
26		src[i] = '#';
27		dst[i] = want[i] = ' ';
28	}
29	for (i = 0; i < len; i++)
30		src[salign+i] = want[dalign+i] = '0'+i;
31	p = pmemcpy(dst+dalign, src+salign, len);
32	if (p != dst+dalign)
33		t_error("memcpy(%p,...) returned %p\n", dst+dalign, p);
34	for (i = 0; i < N; i++)
35		if (dst[i] != want[i]) {
36			t_error("memcpy(align %d, align %d, %d) failed\n", dalign, salign, len);
37			t_printf("got : %.*s\n", dalign+len+1, dst);
38			t_printf("want: %.*s\n", dalign+len+1, want);
39			break;
40		}
41}
42
43int main(void)
44{
45	int i,j,k;
46
47	pmemcpy = memcpy;
48
49	for (i = 0; i < 16; i++)
50		for (j = 0; j < 16; j++)
51			for (k = 0; k < 64; k++)
52				test_align(i,j,k);
53
54	return t_status;
55}
56