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124 lines
2.6 KiB
124 lines
2.6 KiB
/*
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* strcpy test.
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*
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* Copyright (c) 2019-2020, Arm Limited.
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* SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mte.h"
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#include "stringlib.h"
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#include "stringtest.h"
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#define F(x, mte) {#x, x, mte},
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static const struct fun
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{
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const char *name;
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char *(*fun) (char *dest, const char *src);
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int test_mte;
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} funtab[] = {
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// clang-format off
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F(strcpy, 0)
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#if __aarch64__
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F(__strcpy_aarch64, 0)
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F(__strcpy_aarch64_mte, 1)
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# if __ARM_FEATURE_SVE
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F(__strcpy_aarch64_sve, 1)
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# endif
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#elif __arm__ && defined (__thumb2__) && !defined (__thumb__)
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F(__strcpy_arm, 0)
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#endif
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{0, 0, 0}
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// clang-format on
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};
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#undef F
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#define ALIGN 32
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#define LEN 512
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static char *dbuf;
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static char *sbuf;
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static char wbuf[LEN + 3 * ALIGN];
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static void *
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alignup (void *p)
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{
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return (void *) (((uintptr_t) p + ALIGN - 1) & -ALIGN);
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}
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static void
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test (const struct fun *fun, int dalign, int salign, int len)
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{
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char *src = alignup (sbuf);
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char *dst = alignup (dbuf);
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char *want = wbuf;
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char *s = src + salign;
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char *d = dst + dalign;
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char *w = want + dalign;
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void *p;
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int i;
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if (err_count >= ERR_LIMIT)
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return;
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if (len > LEN || dalign >= ALIGN || salign >= ALIGN)
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abort ();
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for (i = 0; i < len + ALIGN; i++)
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{
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src[i] = '?';
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want[i] = dst[i] = '*';
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}
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for (int i = 0; src + i < s; i++)
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src[i] = 0;
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for (int i = 1; i <= ALIGN; i++)
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s[len + i] = (len + salign) & 1 ? 1 : 0;
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for (i = 0; i < len; i++)
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s[i] = w[i] = 'a' + (i & 31);
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s[len] = w[len] = '\0';
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s = tag_buffer (s, len + 1, fun->test_mte);
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d = tag_buffer (d, len + 1, fun->test_mte);
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p = fun->fun (d, s);
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untag_buffer (s, len + 1, fun->test_mte);
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untag_buffer (d, len + 1, fun->test_mte);
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if (p != d)
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ERR ("%s (%p,..) returned %p\n", fun->name, d, p);
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for (i = 0; i < len + ALIGN; i++)
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{
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if (dst[i] != want[i])
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{
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ERR ("%s (align %d, align %d, %d) failed\n",
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fun->name, dalign, salign, len);
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quoteat ("got", dst, len + ALIGN, i);
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quoteat ("want", want, len + ALIGN, i);
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break;
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}
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}
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}
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int
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main (void)
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{
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sbuf = mte_mmap (LEN + 3 * ALIGN);
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dbuf = mte_mmap (LEN + 3 * ALIGN);
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int r = 0;
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for (int i = 0; funtab[i].name; i++)
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{
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err_count = 0;
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for (int d = 0; d < ALIGN; d++)
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for (int s = 0; s < ALIGN; s++)
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for (int n = 0; n < LEN; n++)
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test (funtab + i, d, s, n);
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char *pass = funtab[i].test_mte && mte_enabled () ? "MTE PASS" : "PASS";
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printf ("%s %s\n", err_count ? "FAIL" : pass, funtab[i].name);
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if (err_count)
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r = -1;
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}
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return r;
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}
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