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https://sourceware.org/git/binutils-gdb.git
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132 lines
2.5 KiB
C
132 lines
2.5 KiB
C
/* Test for inferior function calls MPX context.
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Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <string.h>
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#include "x86-cpuid.h"
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/* Defined size for arrays. */
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#define ARRAY_LENGTH 5
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unsigned int
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have_mpx (void)
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{
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unsigned int eax, ebx, ecx, edx;
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if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
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return 0;
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if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
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{
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if (__get_cpuid_max (0, NULL) < 7)
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return 0;
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__cpuid_count (7, 0, eax, ebx, ecx, edx);
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if ((ebx & bit_MPX) == bit_MPX)
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return 1;
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else
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return 0;
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}
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return 0;
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}
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int
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upper (int *a, int *b, int *c, int *d, int len)
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{
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int value;
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value = *(a + len);
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value = *(b + len);
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value = *(c + len);
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value = *(d + len);
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value = value - *a + 1;
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return value;
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}
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int
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lower (int *a, int *b, int *c, int *d, int len)
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{
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int value;
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value = *(a - len);
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value = *(b - len);
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value = *(c - len);
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value = *(d - len);
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value = value - *a + 1;
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return value;
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}
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char
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char_upper (char *str, int length)
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{
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char ch;
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ch = *(str + length);
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return ch;
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}
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char
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char_lower (char *str, int length)
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{
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char ch;
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ch = *(str - length);
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return ch;
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}
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int
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main (void)
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{
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if (have_mpx ())
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{
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int sa[ARRAY_LENGTH];
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int sb[ARRAY_LENGTH];
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int sc[ARRAY_LENGTH];
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int sd[ARRAY_LENGTH];
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int *x, *a, *b, *c, *d;
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char mchar;
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char hello[] = "Hello";
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x = malloc (sizeof (int) * ARRAY_LENGTH);
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a = malloc (sizeof (int) * ARRAY_LENGTH);
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b = malloc (sizeof (int) * ARRAY_LENGTH);
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c = malloc (sizeof (int) * ARRAY_LENGTH);
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d = malloc (sizeof (int) * ARRAY_LENGTH);
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*x = upper (sa, sb, sc, sd, 0); /* bkpt 1. */
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*x = lower (a, b, c, d, 0);
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mchar = char_upper (hello, 10);
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mchar = char_lower (hello, 10);
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free (x);
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free (a);
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free (b);
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free (c);
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free (d);
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}
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return 0;
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}
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