1 2 /*--------------------------------------------------------------------*/ 3 /*--- Create/destroy signal delivery frames. ---*/ 4 /*--- pub_core_sigframe.h ---*/ 5 /*--------------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright (C) 2000-2017 Julian Seward 12 jseward@acm.org 13 14 This program is free software; you can redistribute it and/or 15 modify it under the terms of the GNU General Public License as 16 published by the Free Software Foundation; either version 2 of the 17 License, or (at your option) any later version. 18 19 This program is distributed in the hope that it will be useful, but 20 WITHOUT ANY WARRANTY; without even the implied warranty of 21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 22 General Public License for more details. 23 24 You should have received a copy of the GNU General Public License 25 along with this program; if not, write to the Free Software 26 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 27 02111-1307, USA. 28 29 The GNU General Public License is contained in the file COPYING. 30 */ 31 32 #ifndef __PUB_CORE_SIGFRAME_H 33 #define __PUB_CORE_SIGFRAME_H 34 35 #include "pub_core_basics.h" // VG_ macro 36 #include "pub_core_vki.h" // vki_sigset_t et al. 37 38 //-------------------------------------------------------------------- 39 // PURPOSE: This module creates and destroys signal delivery frames 40 // for client threads, saving/restoring the thread CPU state in the 41 // frame appropriately. 42 //-------------------------------------------------------------------- 43 44 /* This is an arbitrary si_code that we only use internally for SIGSEGV. 45 It corresponds to the value SI_KERNEL on Linux, but that's not really 46 of any significance. */ 47 #define VKI_SEGV_MADE_UP_GPF 0x80 48 49 /* Create a signal frame for thread 'tid'. */ 50 extern 51 void VG_(sigframe_create) ( ThreadId tid, 52 Bool on_altstack, 53 Addr sp_top_of_frame, 54 const vki_siginfo_t *siginfo, 55 const struct vki_ucontext *uc, 56 void *handler, 57 UInt flags, 58 const vki_sigset_t *mask, 59 void *restorer ); 60 61 /* Remove a signal frame from thread 'tid's stack, and 62 restore the CPU state from it. */ 63 extern 64 void VG_(sigframe_destroy)( ThreadId tid, Bool isRT ); 65 66 #if defined(VGO_solaris) 67 extern 68 void VG_(sigframe_return)(ThreadId tid, const vki_ucontext_t *uc); 69 #endif 70 71 #endif // __PUB_CORE_SIGFRAME_H 72 73 /*--------------------------------------------------------------------*/ 74 /*--- end pub_core_sigframe.h ---*/ 75 /*--------------------------------------------------------------------*/ 76