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d08ae9c3fb
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-Id: <20230212111044.610942-12-bugaevc@gmail.com>
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* Machine-specific function to return the stack pointer. x86_64 version.
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Copyright (C) 1994-2023 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 _MACHINE_SP_H
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#define _MACHINE_SP_H
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/* Return the current stack pointer. */
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#define __thread_stack_pointer() ({ \
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register uintptr_t __sp__ asm("rsp"); \
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__sp__; \
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})
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#endif /* machine-sp.h */
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