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/*
* stpcpy test.
*
* Copyright (c) 2019-2022, Arm Limited.
* SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mte.h"
#include "stringlib.h"
#include "stringtest.h"
#define F(x, mte) {#x, x, mte},
static const struct fun
{
const char *name;
char *(*fun) (char *dest, const char *src);
int test_mte;
} funtab[] = {
// clang-format off
F(stpcpy, 0)
#if __aarch64__
F(__stpcpy_aarch64, 1)
# if __ARM_FEATURE_SVE
F(__stpcpy_aarch64_sve, 1)
# endif
#endif
{0, 0, 0}
// clang-format on
};
#undef F
#define ALIGN 32
#define LEN 512
static char *dbuf;
static char *sbuf;
static char wbuf[LEN + 3 * ALIGN];
static void *
alignup (void *p)
{
return (void *) (((uintptr_t) p + ALIGN - 1) & -ALIGN);
}
static void
test (const struct fun *fun, int dalign, int salign, int len)
{
char *src = alignup (sbuf);
char *dst = alignup (dbuf);
char *want = wbuf;
char *s = src + salign;
char *d = dst + dalign;
char *w = want + dalign;
void *p;
int i;
if (err_count >= ERR_LIMIT)
return;
if (len > LEN || dalign >= ALIGN || salign >= ALIGN)
abort ();
for (i = 0; i < len + ALIGN; i++)
{
src[i] = '?';
want[i] = dst[i] = '*';
}
for (int i = 0; src + i < s; i++)
src[i] = 0;
for (int i = 1; i <= ALIGN; i++)
s[len + i] = (len + salign) & 1 ? 1 : 0;
for (i = 0; i < len; i++)
s[i] = w[i] = 'a' + (i & 31);
s[len] = w[len] = '\0';
s = tag_buffer (s, len + 1, fun->test_mte);
d = tag_buffer (d, len + 1, fun->test_mte);
p = fun->fun (d, s);
untag_buffer (s, len + 1, fun->test_mte);
untag_buffer (d, len + 1, fun->test_mte);
if (p != d + len)
ERR ("%s (%p,..) returned %p expected %p\n", fun->name, d, p, d + len);
for (i = 0; i < len + ALIGN; i++)
{
if (dst[i] != want[i])
{
ERR ("%s (align %d, align %d, %d) failed\n",
fun->name, dalign, salign, len);
quoteat ("got", dst, len + ALIGN, i);
quoteat ("want", want, len + ALIGN, i);
break;
}
}
}
int
main (void)
{
sbuf = mte_mmap (LEN + 3 * ALIGN);
dbuf = mte_mmap (LEN + 3 * ALIGN);
int r = 0;
for (int i = 0; funtab[i].name; i++)
{
err_count = 0;
for (int d = 0; d < ALIGN; d++)
for (int s = 0; s < ALIGN; s++)
for (int n = 0; n < LEN; n++)
test (funtab + i, d, s, n);
char *pass = funtab[i].test_mte && mte_enabled () ? "MTE PASS" : "PASS";
printf ("%s %s\n", err_count ? "FAIL" : pass, funtab[i].name);
if (err_count)
r = -1;
}
return r;
}
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