1 2 /*--------------------------------------------------------------------*/ 3 /*--- Process-related libc stuff pub_tool_libcproc.h ---*/ 4 /*--------------------------------------------------------------------*/ 5 6 /* 7 This file is part of Valgrind, a dynamic binary instrumentation 8 framework. 9 10 Copyright (C) 2000-2017 Julian Seward 11 jseward (at) acm.org 12 13 This program is free software; you can redistribute it and/or 14 modify it under the terms of the GNU General Public License as 15 published by the Free Software Foundation; either version 2 of the 16 License, or (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, but 19 WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26 02111-1307, USA. 27 28 The GNU General Public License is contained in the file COPYING. 29 */ 30 31 #ifndef __PUB_TOOL_LIBCPROC_H 32 #define __PUB_TOOL_LIBCPROC_H 33 34 #include "pub_tool_basics.h" // VG_ macro 35 #include "pub_tool_vki.h" // vki_rlimit 36 37 /* --------------------------------------------------------------------- 38 Command-line and environment stuff 39 ------------------------------------------------------------------ */ 40 41 /* Client environment. */ 42 extern HChar** VG_(client_envp); 43 44 /* Looks up VG_(client_envp) */ 45 extern HChar* VG_(getenv) ( const HChar* name ); 46 47 /* Path to all our library/aux files */ 48 extern const HChar *VG_(libdir); 49 50 // The name of the LD_PRELOAD-equivalent variable. It varies across 51 // platforms. 52 extern const HChar* VG_(LD_PRELOAD_var_name); 53 54 /* Resolves filename of VG_(cl_exec_fd) and copies it to the buffer. 55 Buffer must not be NULL and buf_size must be at least 1. 56 If buffer is not large enough it is terminated with '\0' only 57 when 'terminate_with_NUL == True'. */ 58 extern void VG_(client_fname)(HChar *buffer, SizeT buf_size, 59 Bool terminate_with_NUL); 60 61 /* Concatenates client exename and command line arguments into 62 the buffer. Buffer must not be NULL and buf_size must be 63 at least 1. Buffer is always terminated with '\0'. */ 64 extern void VG_(client_cmd_and_args)(HChar *buffer, SizeT buf_size); 65 66 /* --------------------------------------------------------------------- 67 Important syscalls 68 ------------------------------------------------------------------ */ 69 70 extern Int VG_(waitpid)( Int pid, Int *status, Int options ); 71 extern Int VG_(system) ( const HChar* cmd ); 72 extern Int VG_(spawn) ( const HChar *filename, const HChar **argv ); 73 extern Int VG_(fork) ( void); 74 extern void VG_(execv) ( const HChar* filename, const HChar** argv ); 75 extern Int VG_(sysctl) ( Int *name, UInt namelen, void *oldp, SizeT *oldlenp, void *newp, SizeT newlen ); 76 77 /* --------------------------------------------------------------------- 78 Resource limits and capabilities 79 ------------------------------------------------------------------ */ 80 81 extern Int VG_(getrlimit) ( Int resource, struct vki_rlimit *rlim ); 82 extern Int VG_(setrlimit) ( Int resource, const struct vki_rlimit *rlim ); 83 extern Int VG_(prctl) (Int option, 84 ULong arg2, ULong arg3, ULong arg4, ULong arg5); 85 86 /* --------------------------------------------------------------------- 87 pids, etc 88 ------------------------------------------------------------------ */ 89 90 extern Int VG_(gettid) ( void ); 91 extern Int VG_(getpid) ( void ); 92 extern Int VG_(getppid) ( void ); 93 extern Int VG_(getpgrp) ( void ); 94 extern Int VG_(geteuid) ( void ); 95 extern Int VG_(getegid) ( void ); 96 97 /* --------------------------------------------------------------------- 98 Timing 99 ------------------------------------------------------------------ */ 100 101 // Returns the number of milliseconds passed since the progam started 102 // (roughly; it gets initialised partway through Valgrind's initialisation 103 // steps). 104 extern UInt VG_(read_millisecond_timer) ( void ); 105 extern Int VG_(gettimeofday)(struct vki_timeval *tv, struct vki_timezone *tz); 106 107 /* --------------------------------------------------------------------- 108 atfork 109 ------------------------------------------------------------------ */ 110 111 typedef void (*vg_atfork_t)(ThreadId); 112 extern void VG_(atfork)(vg_atfork_t pre, vg_atfork_t parent, vg_atfork_t child); 113 114 115 #endif // __PUB_TOOL_LIBCPROC_H 116 117 /*--------------------------------------------------------------------*/ 118 /*--- end ---*/ 119 /*--------------------------------------------------------------------*/ 120
