| |
| /*--------------------------------------------------------------------*/ |
| /*--- Doing system calls. pub_core_syscall.h ---*/ |
| /*--------------------------------------------------------------------*/ |
| |
| /* |
| This file is part of Valgrind, a dynamic binary instrumentation |
| framework. |
| |
| Copyright (C) 2000-2005 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_SYSCALL_H |
| #define __PUB_CORE_SYSCALL_H |
| |
| //-------------------------------------------------------------------- |
| // PURPOSE: This module contains the code for actually executing syscalls. |
| //-------------------------------------------------------------------- |
| |
| /* Do a syscall on this platform, with 6 args, and return the result |
| in canonical format in a SysRes value. */ |
| |
| // We use a full prototype for VG_(do_syscall) rather than "..." to ensure |
| // that all arguments get converted to a UWord appropriately. Not doing so |
| // can cause problems when passing 32-bit integers on 64-bit platforms, |
| // because the top 32-bits might not be zeroed appropriately, eg. as would |
| // happen with the 6th arg on AMD64 which is passed on the stack. |
| |
| extern SysRes VG_(do_syscall) ( UWord sysno, |
| UWord, UWord, UWord, |
| UWord, UWord, UWord ); |
| |
| /* Macros make life easier. */ |
| |
| #define vgPlain_do_syscall0(s) VG_(do_syscall)((s),0,0,0,0,0,0) |
| #define vgPlain_do_syscall1(s,a) VG_(do_syscall)((s),(a),0,0,0,0,0) |
| #define vgPlain_do_syscall2(s,a,b) VG_(do_syscall)((s),(a),(b),0,0,0,0) |
| #define vgPlain_do_syscall3(s,a,b,c) VG_(do_syscall)((s),(a),(b),(c),0,0,0) |
| #define vgPlain_do_syscall4(s,a,b,c,d) VG_(do_syscall)((s),(a),(b),\ |
| (c),(d),0,0) |
| #define vgPlain_do_syscall5(s,a,b,c,d,e) VG_(do_syscall)((s),(a),(b),\ |
| (c),(d),(e),0) |
| #define vgPlain_do_syscall6(s,a,b,c,d,e,f) VG_(do_syscall)((s),(a),(b),\ |
| (c),(d),(e),(f)) |
| |
| extern SysRes VG_(mk_SysRes_x86_linux) ( Word val ); |
| extern SysRes VG_(mk_SysRes_amd64_linux) ( Word val ); |
| extern SysRes VG_(mk_SysRes_ppc32_linux) ( UInt val, UInt errflag ); |
| extern SysRes VG_(mk_SysRes_Error) ( UWord val ); |
| extern SysRes VG_(mk_SysRes_Success) ( UWord val ); |
| |
| // The _WRK function is handwritten assembly. It has some very magic |
| // properties. See comments at the top of |
| // VG_(fixup_guest_state_after_syscall_interrupted) below for details. |
| extern |
| void VG_(do_syscall_for_client_WRK)( Int syscallno, |
| void* guest_state, |
| const vki_sigset_t *syscall_mask, |
| const vki_sigset_t *restore_mask, |
| Int nsigwords ); |
| |
| #endif // __PUB_CORE_SYSCALL_H |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end ---*/ |
| /*--------------------------------------------------------------------*/ |
| |