| |
| /*--------------------------------------------------------------------*/ |
| /*--- POSIX signals. pub_core_signals.h ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2009 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_CORE_SIGNALS_H |
| #define __PUB_CORE_SIGNALS_H |
| |
| //-------------------------------------------------------------------- |
| // PURPOSE: This module implements all the signal handling stuff. |
| //-------------------------------------------------------------------- |
| |
| #include "pub_tool_signals.h" // I want to get rid of this header... |
| |
| /* Highest signal the kernel will let us use */ |
| extern Int VG_(max_signal); |
| |
| /* Use high signals because native pthreads wants to use low */ |
| #define VG_SIGVGKILL (VG_(max_signal)-0) |
| #define VG_SIGVGRTUSERMAX (VG_(max_signal)-1) |
| |
| extern void VG_(sigstartup_actions) ( void ); |
| |
| /* Poll a thread's set of pending signals, and update the Thread's |
| context to deliver one (viz, create signal frames if needed) */ |
| extern void VG_(poll_signals) ( ThreadId ); |
| |
| /* Fake system calls for signal handling. */ |
| extern SysRes VG_(do_sys_sigaltstack) ( ThreadId tid, vki_stack_t* ss, |
| vki_stack_t* oss ); |
| extern SysRes VG_(do_sys_sigaction) ( Int signo, |
| const struct vki_sigaction *new_act, |
| struct vki_sigaction *old_act ); |
| extern SysRes VG_(do_sys_sigprocmask) ( ThreadId tid, Int how, |
| vki_sigset_t* set, |
| vki_sigset_t* oldset ); |
| |
| extern void VG_(clear_out_queued_signals) |
| ( ThreadId tid, /* OUT */ vki_sigset_t* saved_mask ); |
| |
| extern void VG_(kill_self)(Int sigNo); |
| |
| /* These function synthesize a fault, as if the running instruction |
| had had a fault. These functions do not return - they longjmp back |
| into the scheduler so the signal can be delivered. */ |
| extern void VG_(synth_fault) (ThreadId tid); |
| extern void VG_(synth_fault_mapping)(ThreadId tid, Addr addr); |
| extern void VG_(synth_fault_perms) (ThreadId tid, Addr addr); |
| extern void VG_(synth_sigill) (ThreadId tid, Addr addr); |
| extern void VG_(synth_sigtrap) (ThreadId tid); |
| |
| /* Extend the stack to cover addr, if possible */ |
| extern Bool VG_(extend_stack)(Addr addr, UInt maxsize); |
| |
| /* Forces the client's signal handler to SIG_DFL - generally just |
| before using that signal to kill the process. */ |
| extern void VG_(set_default_handler)(Int sig); |
| |
| #endif // __PUB_CORE_SIGNALS_H |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |