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3f94e58859
The sources for the test-cases gdb.arch/i386-mpx*.exp contain have_mpx functions that test whether the processor supports mpx instructions. OTOH, the test-cases are compiled using -mmpx -fcheck-pointer-bounds, which instrument all functions with mpx instructions. So, the function that is supposed to test whether mpx instruction are supported contains mpx instructions, which is a bit odd. We could fix this by: - factoring out the have_mpx function into a single source file, and - compiling it without "-mmpx -fcheck-pointer-bounds". But having the mpx support test as part of the test-cases seems like an unnecessary complication that makes the test-cases more difficult to analyze, reason about and modify. So we go one step further and factor out the mpx support test in into a gdb_caching_proc. Tested on x86_64-linux. gdb/testsuite/ChangeLog: 2021-01-12 Tom de Vries <tdevries@suse.de> * gdb.arch/i386-mpx-call.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-call.exp: Use have_mpx. * gdb.arch/i386-mpx-map.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx-map.exp: Use have_mpx. * gdb.arch/i386-mpx-sigsegv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-sigsegv.exp: Use have_mpx. * gdb.arch/i386-mpx-simple_segv.c (have_mpx): Remove. (main): Remove call to have_mpx. * gdb.arch/i386-mpx-simple_segv.exp: Use have_mpx. * gdb.arch/i386-mpx.c (have_mpx): Remove. (main): Remote call to have_mpx. * gdb.arch/i386-mpx.exp: Use have_mpx. * lib/gdb.exp (have_mpx): New proc.
106 lines
2.0 KiB
C
106 lines
2.0 KiB
C
/* Test for inferior function calls MPX context.
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Copyright (C) 2017-2021 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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/* Defined size for arrays. */
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#define ARRAY_LENGTH 5
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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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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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return 0;
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}
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