/usr/include/valgrind/pub_tool_libcsignal.h is in valgrind 1:3.13.0-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*--- Signal-related libc stuff. pub_tool_libcsignal.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2017 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PUB_TOOL_LIBCBSIGNAL_H
#define __PUB_TOOL_LIBCBSIGNAL_H
#include "pub_tool_basics.h" // VG_ macro
#include "pub_tool_vki.h" // vki_sigset
/* Note that these use the vki_ (kernel) structure
definitions, which are different in places from those that glibc
defines. Since we're operating right at the kernel interface, glibc's view
of the world is entirely irrelevant. */
/* --- Signal set ops (only the ops used by tools) --- */
extern Int VG_(sigdelset) ( vki_sigset_t* set, Int signum );
/* Other Signal set ops are in pub_core_libcsignal.h and must be moved
here if needed by tools. */
/* --- Mess with the kernel's sig state --- */
extern Int VG_(sigprocmask) ( Int how, const vki_sigset_t* set,
vki_sigset_t* oldset );
#endif // __PUB_TOOL_LIBCBSIGNAL_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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