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/* Test program for MPX map allocated bounds.
Copyright 2015-2018 Free Software Foundation, Inc.
Contributed by Intel Corp. <walfred.tedeschi@intel.com>
<mircea.gherzan@intel.com>
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include "x86-cpuid.h"
#ifndef NOINLINE
#define NOINLINE __attribute__ ((noinline))
#endif
#define SIZE 5
typedef int T;
unsigned int have_mpx (void) NOINLINE;
unsigned int NOINLINE
have_mpx (void)
{
unsigned int eax, ebx, ecx, edx;
if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
return 0;
if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
{
if (__get_cpuid_max (0, NULL) < 7)
return 0;
__cpuid_count (7, 0, eax, ebx, ecx, edx);
if ((ebx & bit_MPX) == bit_MPX)
return 1;
else
return 0;
}
return 0;
}
void
foo (T *p)
{
T *x;
#if defined __GNUC__ && !defined __INTEL_COMPILER
__bnd_store_ptr_bounds (p, &p);
#endif
x = p + SIZE - 1;
#if defined __GNUC__ && !defined __INTEL_COMPILER
__bnd_store_ptr_bounds (x, &x);
#endif
/* Dummy assign. */
x = x + 1; /* after-assign */
return;
}
int
main (void)
{
if (have_mpx ())
{
T *a = NULL;
a = calloc (SIZE, sizeof (T)); /* after-decl */
#if defined __GNUC__ && !defined __INTEL_COMPILER
__bnd_store_ptr_bounds (a, &a);
#endif
foo (a); /* after-alloc */
free (a);
}
return 0;
}
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