1 /* Test program for MPX registers.
3 Copyright 2013-2014 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "i386-cpuid.h"
24 #define NOINLINE __attribute__ ((noinline))
27 unsigned int have_mpx (void) NOINLINE;
32 unsigned int eax, ebx, ecx, edx;
34 if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
37 if ((ecx & bit_OSXSAVE) == bit_OSXSAVE)
39 if (__get_cpuid_max (0, NULL) < 7)
42 __cpuid_count (7, 0, eax, ebx, ecx, edx);
44 if ((ebx & bit_MPX) == bit_MPX)
52 main (int argc, char **argv)
57 asm ("mov $10, %rax\n\t"
59 "bndmk (%rax,%rdx), %bnd0\n\t"
62 "bndmk (%rax,%rdx), %bnd1\n\t"
65 "bndmk (%rax,%rdx), %bnd2\n\t"
68 "bndmk (%rax,%rdx), %bnd3\n\t"
69 "bndstx %bnd3, (%rax) \n\t"
73 asm ("mov $10, %eax\n\t"
75 "bndmk (%eax,%edx), %bnd0\n\t"
78 "bndmk (%eax,%edx), %bnd1\n\t"
81 "bndmk (%eax,%edx), %bnd2\n\t"
84 "bndmk (%eax,%edx), %bnd3\n\t"
85 "bndstx %bnd3, (%eax)\n\t"
89 asm ("nop\n\t"); /* break here. */