coregrind/m_vkiscnums.c

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Notional "implementation" for m_vkiscnums.                   ---*/
   4 /*---                                                m_vkiscnums.c ---*/
   5 /*--------------------------------------------------------------------*/
   6
   7 /*
   8    This file is part of Valgrind, a dynamic binary instrumentation
   9    framework.
  10
  11    Copyright (C) 2006-2017 OpenWorks LLP
  12       info@open-works.co.uk
  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 #include "pub_core_basics.h"
  33 #include "pub_core_libcprint.h"
  34 #include "pub_core_vkiscnums.h"     /* self */
  35
  36 /* We have pub_{core,tool}_vkiscnums.h.  This is the matching implementation
  37    for that interface.
  38
  39    On Linux, the interface exports a bunch of "#define __NR_foo 42" style
  40    definitions, so there is no implementation.
  41 */
  42
  43 //---------------------------------------------------------------------------
  44 #if defined(VGO_linux)
  45 //---------------------------------------------------------------------------
  46
  47 const HChar* VG_(sysnum_string)(Word sysnum)
  48 {
  49    static HChar buf[20+1];   // large enough
  50
  51    VG_(sprintf)(buf, "%ld", sysnum);
  52    return buf;
  53 }
  54
  55 /* include/pub_tool_basics.h hardcodes the following syscall numbers
  56    on mips{32,64}-linux so as to avoid a module cycle.  We make that
  57    safe here by causing the build to fail if those numbers should ever
  58    change.  See comments in function sr_EQ in the mips{32,64}-linux
  59    section of include/pub_tool_basics.h for more details. */
  60 #if defined(VGP_mips32_linux)
  61 STATIC_ASSERT(__NR_pipe  == 4042);
  62 STATIC_ASSERT(__NR_pipe2 == 4328);
  63 #elif defined(VGP_mips64_linux)
  64 STATIC_ASSERT(__NR_pipe  == 5021);
  65 STATIC_ASSERT(__NR_pipe2 == 5287);
  66 #endif
  67
  68 //---------------------------------------------------------------------------
  69 #elif defined(VGO_darwin)
  70 //---------------------------------------------------------------------------
  71
  72 const HChar* VG_(sysnum_string)(Word sysnum)
  73 {
  74    static HChar buf[7+1+20+1];   // large enough
  75
  76    const HChar* classname = NULL;
  77    switch (VG_DARWIN_SYSNO_CLASS(sysnum)) {
  78       case VG_DARWIN_SYSCALL_CLASS_MACH: classname = "mach"; break;
  79       case VG_DARWIN_SYSCALL_CLASS_UNIX: classname = "unix"; break;
  80       case VG_DARWIN_SYSCALL_CLASS_MDEP: classname = "mdep"; break;
  81       case VG_DARWIN_SYSCALL_CLASS_DIAG: classname = "diag"; break;
  82       default: classname = "UNKNOWN"; break;
  83    }
  84    VG_(sprintf)(buf, "%s:%ld", classname, VG_DARWIN_SYSNO_INDEX(sysnum));
  85    return buf;
  86 }
  87
  88 //---------------------------------------------------------------------------
  89 #elif defined(VGO_solaris)
  90 //---------------------------------------------------------------------------
  91
  92 const HChar *VG_(sysnum_string)(Word sysnum)
  93 {
  94    static HChar buf[8+20+1];   // large enough
  95
  96    const HChar* classname = NULL;
  97    switch (VG_SOLARIS_SYSNO_CLASS(sysnum)) {
  98       case VG_SOLARIS_SYSCALL_CLASS_CLASSIC: classname = ""; break;
  99       case VG_SOLARIS_SYSCALL_CLASS_FASTTRAP: classname = "fast:"; break;
 100       default: classname = "UNKNOWN:"; break;
 101    }
 102    VG_(sprintf)(buf, "%s%ld", classname, VG_SOLARIS_SYSNO_INDEX(sysnum));
 103    return buf;
 104 }
 105
 106 //---------------------------------------------------------------------------
 107 #else
 108 //---------------------------------------------------------------------------
 109 #  error Unknown OS
 110 #endif
 111
 112 /*--------------------------------------------------------------------*/
 113 /*--- end                                                          ---*/
 114 /*--------------------------------------------------------------------*/