// SPDX-License-Identifier: GPL-2.0
|
#include <malloc.h>
|
#include <string.h>
|
#include <stdlib.h>
|
#include <stdbool.h>
|
|
#include "utils.h"
|
|
#define MAX_LEN 8192
|
#define MAX_OFFSET 16
|
#define MIN_REDZONE 128
|
#define BUFLEN (MAX_LEN+MAX_OFFSET+2*MIN_REDZONE)
|
#define POISON 0xa5
|
|
unsigned long COPY_LOOP(void *to, const void *from, unsigned long size);
|
|
static void do_one(char *src, char *dst, unsigned long src_off,
|
unsigned long dst_off, unsigned long len, void *redzone,
|
void *fill)
|
{
|
char *srcp, *dstp;
|
unsigned long ret;
|
unsigned long i;
|
|
srcp = src + MIN_REDZONE + src_off;
|
dstp = dst + MIN_REDZONE + dst_off;
|
|
memset(src, POISON, BUFLEN);
|
memset(dst, POISON, BUFLEN);
|
memcpy(srcp, fill, len);
|
|
ret = COPY_LOOP(dstp, srcp, len);
|
if (ret && ret != (unsigned long)dstp) {
|
printf("(%p,%p,%ld) returned %ld\n", dstp, srcp, len, ret);
|
abort();
|
}
|
|
if (memcmp(dstp, srcp, len)) {
|
printf("(%p,%p,%ld) miscompare\n", dstp, srcp, len);
|
printf("src: ");
|
for (i = 0; i < len; i++)
|
printf("%02x ", srcp[i]);
|
printf("\ndst: ");
|
for (i = 0; i < len; i++)
|
printf("%02x ", dstp[i]);
|
printf("\n");
|
abort();
|
}
|
|
if (memcmp(dst, redzone, dstp - dst)) {
|
printf("(%p,%p,%ld) redzone before corrupted\n",
|
dstp, srcp, len);
|
abort();
|
}
|
|
if (memcmp(dstp+len, redzone, dst+BUFLEN-(dstp+len))) {
|
printf("(%p,%p,%ld) redzone after corrupted\n",
|
dstp, srcp, len);
|
abort();
|
}
|
}
|
|
int test_copy_loop(void)
|
{
|
char *src, *dst, *redzone, *fill;
|
unsigned long len, src_off, dst_off;
|
unsigned long i;
|
|
src = memalign(BUFLEN, BUFLEN);
|
dst = memalign(BUFLEN, BUFLEN);
|
redzone = malloc(BUFLEN);
|
fill = malloc(BUFLEN);
|
|
if (!src || !dst || !redzone || !fill) {
|
fprintf(stderr, "malloc failed\n");
|
exit(1);
|
}
|
|
memset(redzone, POISON, BUFLEN);
|
|
/* Fill with sequential bytes */
|
for (i = 0; i < BUFLEN; i++)
|
fill[i] = i & 0xff;
|
|
for (len = 1; len < MAX_LEN; len++) {
|
for (src_off = 0; src_off < MAX_OFFSET; src_off++) {
|
for (dst_off = 0; dst_off < MAX_OFFSET; dst_off++) {
|
do_one(src, dst, src_off, dst_off, len,
|
redzone, fill);
|
}
|
}
|
}
|
|
return 0;
|
}
|
|
int main(void)
|
{
|
return test_harness(test_copy_loop, str(COPY_LOOP));
|
}
|
