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      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 (at) 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 /*--------------------------------------------------------------------*/
    115