coregrind/m_syswrap/syswrap-linux-variants.c

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Handlers for syscalls on minor variants of Linux kernels.    ---*/
   4 /*---                                     syswrap-linux-variants.c ---*/
   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, see <http://www.gnu.org/licenses/>.
  26
  27    The GNU General Public License is contained in the file COPYING.
  28 */
  29
  30 #if defined(VGO_linux)
  31
  32 /* The files syswrap-generic.c, syswrap-linux.c, syswrap-*-linux.c,
  33    and associated vki*.h header files, constitute Valgrind's model of how a
  34    vanilla Linux kernel behaves with respect to syscalls.
  35
  36    On a few occasions, it is useful to run with a kernel that has some
  37    (minor) extensions to the vanilla model, either due to running on a
  38    hacked kernel, or using a vanilla kernel which has incorporated a
  39    custom kernel module.  Rather than clutter the standard model, all
  40    such variant handlers are placed in here.
  41
  42    Unlike the C files for the standard model, this file should also
  43    contain all constants/types needed for said wrappers.  The vki*.h
  44    headers should not be polluted with non-vanilla info. */
  45
  46
  47 #include "pub_core_basics.h"
  48 #include "pub_core_vki.h"
  49 #include "pub_core_threadstate.h"
  50 #include "pub_core_aspacemgr.h"
  51 #include "pub_core_debuginfo.h"    // VG_(di_notify_*)
  52 #include "pub_core_transtab.h"     // VG_(discard_translations)
  53 #include "pub_core_debuglog.h"
  54 #include "pub_core_libcbase.h"
  55 #include "pub_core_libcassert.h"
  56 #include "pub_core_libcfile.h"
  57 #include "pub_core_libcprint.h"
  58 #include "pub_core_libcproc.h"
  59 #include "pub_core_mallocfree.h"
  60 #include "pub_core_tooliface.h"
  61 #include "pub_core_options.h"
  62 #include "pub_core_scheduler.h"
  63 #include "pub_core_signals.h"
  64 #include "pub_core_syscall.h"
  65
  66 #include "priv_types_n_macros.h"
  67 #include "priv_syswrap-linux-variants.h"
  68
  69
  70 /* ---------------------------------------------------------------
  71    BProc wrappers
  72    ------------------------------------------------------------ */
  73
  74 /* Return 0 means hand to kernel, non-0 means fail w/ that value. */
  75 Int ML_(linux_variant_PRE_sys_bproc)( UWord arg1, UWord arg2,
  76                                       UWord arg3, UWord arg4,
  77                                       UWord arg5, UWord arg6 )
  78 {
  79    return 0;
  80 }
  81
  82 void ML_(linux_variant_POST_sys_bproc)( UWord arg1, UWord arg2,
  83                                         UWord arg3, UWord arg4,
  84                                         UWord arg5, UWord arg6 )
  85 {
  86 }
  87
  88 #endif // defined(VGO_linux)
  89
  90 /*--------------------------------------------------------------------*/
  91 /*--- end                                                          ---*/
  92 /*--------------------------------------------------------------------*/