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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* AArch64 tests for GCS.
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef TST_GCS_HELPER_H
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#define TST_GCS_HELPER_H
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#include <support/check.h>
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#include <support/support.h>
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#include <support/test-driver.h>
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#include <stdio.h>
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#include <sys/auxv.h>
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static bool __check_gcs_status (void)
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{
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register unsigned long x16 asm ("x16");
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asm volatile (
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"mov x16, #1 /* _CHKFEAT_GCS */\n"
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"hint 40 /* CHKFEAT_X16 */\n"
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: "=r" (x16));
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return x16 ^ 1;
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}
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#endif // POINTER_GUARD_H
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