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 /*--------------------------------------------------------------------*/
115