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      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) 2000-2011 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 /* ---------------------------------------------------------------------
     35    Command-line and environment stuff
     36    ------------------------------------------------------------------ */
     37 
     38 /* Client environment. */
     39 extern Char** VG_(client_envp);
     40 
     41 /* Looks up VG_(client_envp) */
     42 extern Char* VG_(getenv) ( Char* name );
     43 
     44 /* Path to all our library/aux files */
     45 extern const Char *VG_(libdir);
     46 
     47 // The name of the LD_PRELOAD-equivalent variable.  It varies across
     48 // platforms.
     49 extern const Char* VG_(LD_PRELOAD_var_name);
     50 
     51 /* ---------------------------------------------------------------------
     52    Important syscalls
     53    ------------------------------------------------------------------ */
     54 
     55 extern Int  VG_(waitpid)( Int pid, Int *status, Int options );
     56 extern Int  VG_(system) ( Char* cmd );
     57 extern Int  VG_(fork)   ( void);
     58 extern void VG_(execv)  ( Char* filename, Char** argv );
     59 
     60 /* ---------------------------------------------------------------------
     61    Resource limits and capabilities
     62    ------------------------------------------------------------------ */
     63 
     64 extern Int VG_(getrlimit) ( Int resource, struct vki_rlimit *rlim );
     65 extern Int VG_(setrlimit) ( Int resource, const struct vki_rlimit *rlim );
     66 extern Int VG_(prctl) (Int option,
     67                        ULong arg2, ULong arg3, ULong arg4, ULong arg5);
     68 
     69 /* ---------------------------------------------------------------------
     70    pids, etc
     71    ------------------------------------------------------------------ */
     72 
     73 extern Int VG_(gettid)  ( void );
     74 extern Int VG_(getpid)  ( void );
     75 extern Int VG_(getppid) ( void );
     76 extern Int VG_(getpgrp) ( void );
     77 extern Int VG_(geteuid) ( void );
     78 extern Int VG_(getegid) ( void );
     79 
     80 /* ---------------------------------------------------------------------
     81    Timing
     82    ------------------------------------------------------------------ */
     83 
     84 // Returns the number of milliseconds passed since the progam started
     85 // (roughly;  it gets initialised partway through Valgrind's initialisation
     86 // steps).
     87 extern UInt VG_(read_millisecond_timer) ( void );
     88 
     89 /* ---------------------------------------------------------------------
     90    atfork
     91    ------------------------------------------------------------------ */
     92 
     93 typedef void (*vg_atfork_t)(ThreadId);
     94 extern void VG_(atfork)(vg_atfork_t pre, vg_atfork_t parent, vg_atfork_t child);
     95 
     96 
     97 #endif   // __PUB_TOOL_LIBCPROC_H
     98 
     99 /*--------------------------------------------------------------------*/
    100 /*--- end                                                          ---*/
    101 /*--------------------------------------------------------------------*/
    102