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1fabdb9908
Since legacy bitmap doesn't cover jitted code generated by legacy JIT engine, it isn't very useful. This patch removes ARCH_CET_LEGACY_BITMAP and treats indirect branch tracking similar to shadow stack by removing legacy bitmap support. Tested on CET Linux/x86-64 and non-CET Linux/x86-64. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/* Linux/x86 CET initializers function.
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Copyright (C) 2018-2020 Free Software Foundation, Inc.
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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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#include <sys/prctl.h>
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#include <asm/prctl.h>
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static inline int __attribute__ ((always_inline))
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dl_cet_disable_cet (unsigned int cet_feature)
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{
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return (int) INTERNAL_SYSCALL_CALL (arch_prctl, ARCH_CET_DISABLE,
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cet_feature);
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}
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static inline int __attribute__ ((always_inline))
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dl_cet_lock_cet (void)
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{
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return (int) INTERNAL_SYSCALL_CALL (arch_prctl, ARCH_CET_LOCK, 0);
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}
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