Blame sysdeps/unix/sysv/linux/x86_64/profil-counter.h

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/* Low-level statistical profiling support function.  Linux/x86-64 version.
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   Copyright (C) 2001-2018 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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   <http://www.gnu.org/licenses/>.  */
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#include <signal.h>
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#include <sigcontextinfo.h>
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static void
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__profil_counter (int signo, SIGCONTEXT scp)
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{
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  profil_count ((void *) GET_PC (scp));
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  /* This is a hack to prevent the compiler from implementing the
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     above function call as a sibcall.  The sibcall would overwrite
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     the signal context.  */
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  asm volatile ("");
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}