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, see <http://www.gnu.org/licenses/>.
  26
  27    The GNU General Public License is contained in the file COPYING.
  28 */
  29
  30 #include "pub_core_basics.h"
  31 #include "pub_core_libcprint.h"
  32 #include "pub_core_vkiscnums.h"     /* self */
  33
  34 /* We have pub_{core,tool}_vkiscnums.h.  This is the matching implementation
  35    for that interface.
  36
  37    On Linux, the interface exports a bunch of "#define __NR_foo 42" style
  38    definitions, so there is no implementation.
  39 */
  40
  41 //---------------------------------------------------------------------------
  42 #if defined(VGO_linux)
  43 //---------------------------------------------------------------------------
  44
  45 const HChar* VG_(sysnum_string)(Word sysnum)
  46 {
  47    static HChar buf[20+1];   // large enough
  48
  49    VG_(sprintf)(buf, "%ld", sysnum);
  50    return buf;
  51 }
  52
  53 /* include/pub_tool_basics.h hardcodes the following syscall numbers
  54    on mips{32,64}-linux so as to avoid a module cycle.  We make that
  55    safe here by causing the build to fail if those numbers should ever
  56    change.  See comments in function sr_EQ in the mips{32,64}-linux
  57    section of include/pub_tool_basics.h for more details. */
  58 #if defined(VGP_mips32_linux)
  59 STATIC_ASSERT(__NR_pipe  == 4042);
  60 STATIC_ASSERT(__NR_pipe2 == 4328);
  61 #elif defined(VGP_mips64_linux) && defined(VGABI_N32)
  62 STATIC_ASSERT(__NR_pipe  == 6021);
  63 STATIC_ASSERT(__NR_pipe2 == 6291);
  64 #elif defined(VGP_mips64_linux)
  65 STATIC_ASSERT(__NR_pipe  == 5021);
  66 STATIC_ASSERT(__NR_pipe2 == 5287);
  67 #endif
  68
  69 //---------------------------------------------------------------------------
  70 #elif defined(VGO_freebsd)
  71 //---------------------------------------------------------------------------
  72
  73 const HChar* VG_(sysnum_string)(Word sysnum)
  74 {
  75    static HChar buf[20+1];   // large enough
  76
  77    VG_(snprintf)(buf, sizeof(buf), "%3ld", sysnum);
  78    return buf;
  79 }
  80
  81 #elif defined(VGO_darwin)
  82 //---------------------------------------------------------------------------
  83
  84 const HChar* VG_(sysnum_string)(Word sysnum)
  85 {
  86    static HChar buf[7+1+20+1];   // large enough
  87
  88    const HChar* classname = NULL;
  89    switch (VG_DARWIN_SYSNO_CLASS(sysnum)) {
  90       case VG_DARWIN_SYSCALL_CLASS_MACH: classname = "mach"; break;
  91       case VG_DARWIN_SYSCALL_CLASS_UNIX: classname = "unix"; break;
  92       case VG_DARWIN_SYSCALL_CLASS_MDEP: classname = "mdep"; break;
  93       case VG_DARWIN_SYSCALL_CLASS_DIAG: classname = "diag"; break;
  94       default: classname = "UNKNOWN"; break;
  95    }
  96    VG_(sprintf)(buf, "%s:%ld", classname, VG_DARWIN_SYSNO_INDEX(sysnum));
  97    return buf;
  98 }
  99
 100 //---------------------------------------------------------------------------
 101 #elif defined(VGO_solaris)
 102 //---------------------------------------------------------------------------
 103
 104 const HChar *VG_(sysnum_string)(Word sysnum)
 105 {
 106    static HChar buf[8+20+1];   // large enough
 107
 108    const HChar* classname = NULL;
 109    switch (VG_SOLARIS_SYSNO_CLASS(sysnum)) {
 110       case VG_SOLARIS_SYSCALL_CLASS_CLASSIC: classname = ""; break;
 111       case VG_SOLARIS_SYSCALL_CLASS_FASTTRAP: classname = "fast:"; break;
 112       default: classname = "UNKNOWN:"; break;
 113    }
 114    VG_(sprintf)(buf, "%s%ld", classname, VG_SOLARIS_SYSNO_INDEX(sysnum));
 115    return buf;
 116 }
 117
 118 //---------------------------------------------------------------------------
 119 #else
 120 //---------------------------------------------------------------------------
 121 #  error Unknown OS
 122 #endif
 123
 124 /*--------------------------------------------------------------------*/
 125 /*--- end                                                          ---*/
 126 /*--------------------------------------------------------------------*/