syswrap-linux-variants.c revision 0f157ddb404bcde7815a1c5bf2d7e41c114f3d73
1ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 2ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--------------------------------------------------------------------*/ 3ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--- Handlers for syscalls on minor variants of Linux kernels. ---*/ 4ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--- syswrap-linux-variants.c ---*/ 5ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--------------------------------------------------------------------*/ 6ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 7ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/* 8ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj This file is part of Valgrind, a dynamic binary instrumentation 9ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj framework. 10ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 110f157ddb404bcde7815a1c5bf2d7e41c114f3d73sewardj Copyright (C) 2000-2013 Julian Seward 12ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj jseward@acm.org 13ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 14ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj This program is free software; you can redistribute it and/or 15ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj modify it under the terms of the GNU General Public License as 16ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj published by the Free Software Foundation; either version 2 of the 17ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj License, or (at your option) any later version. 18ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 19ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj This program is distributed in the hope that it will be useful, but 20ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj WITHOUT ANY WARRANTY; without even the implied warranty of 21ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 22ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj General Public License for more details. 23ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 24ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj You should have received a copy of the GNU General Public License 25ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj along with this program; if not, write to the Free Software 26ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 27ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 02111-1307, USA. 28ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 29ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj The GNU General Public License is contained in the file COPYING. 30ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj*/ 31ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 328b68b64759254d514d98328c496cbd88cde4c9a5njn#if defined(VGO_linux) 338b68b64759254d514d98328c496cbd88cde4c9a5njn 348b68b64759254d514d98328c496cbd88cde4c9a5njn/* The files syswrap-generic.c, syswrap-linux.c, syswrap-*-linux.c, 358b68b64759254d514d98328c496cbd88cde4c9a5njn and associated vki*.h header files, constitute Valgrind's model of how a 368b68b64759254d514d98328c496cbd88cde4c9a5njn vanilla Linux kernel behaves with respect to syscalls. 37ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 38ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj On a few occasions, it is useful to run with a kernel that has some 39ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj (minor) extensions to the vanilla model, either due to running on a 40ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj hacked kernel, or using a vanilla kernel which has incorporated a 41ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj custom kernel module. Rather than clutter the standard model, all 42ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj such variant handlers are placed in here. 43ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 44ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj Unlike the C files for the standard model, this file should also 45ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj contain all constants/types needed for said wrappers. The vki*.h 46ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj headers should not be polluted with non-vanilla info. */ 47ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 48ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 49ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_basics.h" 504cfea4f9480393ed6799db463b2e0fb8865a1a2fsewardj#include "pub_core_vki.h" 516c591e15c1d6402a2a755310f005f795b68e7e38sewardj#include "pub_core_libcsetjmp.h" // to keep _threadstate.h happy 52ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_threadstate.h" 53ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_aspacemgr.h" 54ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_debuginfo.h" // VG_(di_notify_*) 55ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_transtab.h" // VG_(discard_translations) 56ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_debuglog.h" 57ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_libcbase.h" 58ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_libcassert.h" 59ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_libcfile.h" 60ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_libcprint.h" 61ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_libcproc.h" 62ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_mallocfree.h" 63ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_tooliface.h" 64ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_options.h" 65ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_scheduler.h" 66ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_signals.h" 67ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "pub_core_syscall.h" 68ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 69ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "priv_types_n_macros.h" 70ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj#include "priv_syswrap-linux-variants.h" 71ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 72ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 73ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/* --------------------------------------------------------------- 74ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj BProc wrappers 75ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj ------------------------------------------------------------ */ 76ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 77ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/* Return 0 means hand to kernel, non-0 means fail w/ that value. */ 78ce5a566e128da79452a69db9cfe2ecb81395fdccsewardjInt ML_(linux_variant_PRE_sys_bproc)( UWord arg1, UWord arg2, 79ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj UWord arg3, UWord arg4, 80ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj UWord arg5, UWord arg6 ) 81ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj{ 82ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj return 0; 83ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj} 84ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 85ce5a566e128da79452a69db9cfe2ecb81395fdccsewardjvoid ML_(linux_variant_POST_sys_bproc)( UWord arg1, UWord arg2, 86ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj UWord arg3, UWord arg4, 87ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj UWord arg5, UWord arg6 ) 88ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj{ 89ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj} 90ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 918b68b64759254d514d98328c496cbd88cde4c9a5njn#endif // defined(VGO_linux) 92ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj 93ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--------------------------------------------------------------------*/ 948b68b64759254d514d98328c496cbd88cde4c9a5njn/*--- end ---*/ 95ce5a566e128da79452a69db9cfe2ecb81395fdccsewardj/*--------------------------------------------------------------------*/ 96