coregrind/pub_core_libcproc.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Process-related libc stuff.              pub_core_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@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, see <http://www.gnu.org/licenses/>.
  25
  26    The GNU General Public License is contained in the file COPYING.
  27 */
  28
  29 #ifndef __PUB_CORE_LIBCPROC_H
  30 #define __PUB_CORE_LIBCPROC_H
  31
  32 //--------------------------------------------------------------------
  33 // PURPOSE: This module contains libc code related to the process.
  34 // It's a bit of a mixed bag.
  35 //--------------------------------------------------------------------
  36
  37 #include "config.h"           // Crucial: ensure we get ENABLE_INNER
  38 #include "pub_tool_libcproc.h"
  39
  40 /* The directory we look for all our auxiliary files in.  Useful for
  41    running Valgrind out of a build tree without having to do "make
  42    install".  Inner valgrinds require a different lib variable, else
  43    they end up picking up .so's etc intended for the outer
  44    valgrind. */
  45 #ifdef ENABLE_INNER
  46 #  define VALGRIND_LIB     "VALGRIND_LIB_INNER"
  47 #else
  48 #  define VALGRIND_LIB     "VALGRIND_LIB"
  49 #endif
  50
  51 /* Additional command-line arguments; they are overridden by actual
  52    command-line option.  Each argument is separated by spaces.  There
  53    is no quoting mechanism.  */
  54 #define VALGRIND_OPTS    "VALGRIND_OPTS"
  55
  56 /* The full name of Valgrind's stage1 (launcher) executable.  This is
  57    set by stage1 and read by stage2, and is used for recursive
  58    invocations of Valgrind on child processes.
  59
  60    For self-hosting, the inner and outer Valgrinds must use different
  61    names to avoid collisions.  */
  62 #ifdef ENABLE_INNER
  63 #  define VALGRIND_LAUNCHER  "VALGRIND_LAUNCHER_INNER"
  64 #else
  65 #  define VALGRIND_LAUNCHER  "VALGRIND_LAUNCHER"
  66 #endif
  67
  68
  69 // Environment manipulations
  70 extern HChar **VG_(env_setenv)   ( HChar ***envp, const HChar* varname,
  71                                    const HChar *val );
  72 extern void    VG_(env_unsetenv) ( HChar **env, const HChar *varname,
  73                                    void (*free_fn) ( void *) );
  74 extern void    VG_(env_remove_valgrind_env_stuff) ( HChar** env,
  75                                                     Bool ro_strings,
  76                                                     void (*free_fn) (void *) );
  77 extern HChar **VG_(env_clone)    ( HChar **env_clone );
  78
  79 // misc
  80 extern Int  VG_(getgroups)( Int size, UInt* list );
  81 extern Int  VG_(ptrace)( Int request, Int pid, void *addr, void *data );
  82
  83 // atfork
  84 extern void VG_(do_atfork_pre)    ( ThreadId tid );
  85 extern void VG_(do_atfork_parent) ( ThreadId tid );
  86 extern void VG_(do_atfork_child)  ( ThreadId tid );
  87
  88 #if defined(VGO_freebsd)
  89 // sysctlbyname, getosreldate, is32on64
  90 extern Int VG_(sysctlbyname)(const HChar *name, void *oldp, SizeT *oldlenp, const void *newp, SizeT newlen);
  91 extern Bool VG_(is32on64)(void);
  92
  93 struct auxv {
  94    Word a_type;
  95    union {
  96       void *a_ptr;
  97       Word a_val;
  98    } u;
  99 };
 100
 101 #endif
 102
 103 // icache invalidation
 104 extern void VG_(invalidate_icache) ( void *ptr, SizeT nbytes );
 105
 106 // dcache flushing
 107 extern void VG_(flush_dcache) ( void *ptr, SizeT nbytes );
 108
 109 #endif   // __PUB_CORE_LIBCPROC_H
 110
 111 /*--------------------------------------------------------------------*/
 112 /*--- end                                                          ---*/
 113 /*--------------------------------------------------------------------*/