1 2 /*--------------------------------------------------------------------*/ 3 /*--- Misc client state info pub_core_clientstate.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_CORE_CLIENTSTATE_H 32 #define __PUB_CORE_CLIENTSTATE_H 33 34 //-------------------------------------------------------------------- 35 // PURPOSE: This module holds various bits of client state which don't 36 // live comfortably anywhere else. Note that the ThreadStates for the 37 // client don't live here; they instead live in m_threadstate.h. Most 38 // of these values are set once at startup and not changed later. 39 //-------------------------------------------------------------------- 40 41 #include "pub_tool_clientstate.h" 42 43 // Address space globals 44 45 extern Addr VG_(clstk_base); // client stack range 46 extern Addr VG_(clstk_end); 47 extern UWord VG_(clstk_id); // client stack id 48 49 /* linux only: where is the client auxv ? */ 50 /* This is setup as part of setup_client_stack in initimg-linux.c. */ 51 extern UWord* VG_(client_auxv); 52 53 extern Addr VG_(brk_base); // start of brk 54 extern Addr VG_(brk_limit); // current brk 55 56 /* A fd which refers to the client executable. */ 57 extern Int VG_(cl_exec_fd); 58 59 /* A fd which refers to the fake /proc/<pid>/cmdline in /tmp. The 60 idea is: make up the /proc/<pid>/cmdline file the client would 61 expect to see if it was running natively. Copy into a file in 62 /tmp. When the client then does an open of /proc/<pid>/cmdline or 63 /proc/self/cmdline, instead give it a file handle to the file in 64 /tmp. The problem of deleting said file when Valgrind exits is 65 neatly sidestepped by unlinking it as soon as it has been created, 66 but holding on to the file handle. That causes the kernel to keep 67 the file contents alive exactly until the process exits. */ 68 extern Int VG_(cl_cmdline_fd); 69 70 // Client's original rlimit data and rlimit stack 71 extern struct vki_rlimit VG_(client_rlimit_data); 72 extern struct vki_rlimit VG_(client_rlimit_stack); 73 74 // Name of the launcher, as extracted from VALGRIND_LAUNCHER at 75 // startup. 76 extern HChar* VG_(name_of_launcher); 77 78 /* Application-visible file descriptor limits */ 79 extern Int VG_(fd_soft_limit); 80 extern Int VG_(fd_hard_limit); 81 82 /* Useful addresses extracted from the client */ 83 /* Where is the __libc_freeres_wrapper routine we made? */ 84 extern Addr VG_(client___libc_freeres_wrapper); 85 86 /* x86-linux only: where is ld.so's _dl_sysinfo_int80 function? 87 Finding it isn't essential, but knowing where it is does sometimes 88 help produce better back traces. See big comment in 89 VG_(get_StackTrace) in m_stacktrace.c for further info. */ 90 extern Addr VG_(client__dl_sysinfo_int80); 91 92 93 #endif // __PUB_CORE_CLIENTSTATE_H 94 95 /*--------------------------------------------------------------------*/ 96 /*--- end ---*/ 97 /*--------------------------------------------------------------------*/ 98
