1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- A home for miscellaneous bits of information which pertain ---*/ 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- to the client's state. ---*/ 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- m_clientstate.c ---*/ 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is part of Valgrind, a dynamic binary instrumentation 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown framework. 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 12436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov Copyright (C) 2000-2013 Julian Seward 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@acm.org 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is free software; you can redistribute it and/or 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modify it under the terms of the GNU General Public License as 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown published by the Free Software Foundation; either version 2 of the 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown License, or (at your option) any later version. 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is distributed in the hope that it will be useful, but 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WITHOUT ANY WARRANTY; without even the implied warranty of 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown General Public License for more details. 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown You should have received a copy of the GNU General Public License 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown along with this program; if not, write to the Free Software 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 02111-1307, USA. 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The GNU General Public License is contained in the file COPYING. 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include "pub_core_basics.h" 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include "pub_core_vki.h" 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include "pub_core_xarray.h" 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include "pub_core_clientstate.h" 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-----------------------------------------------------------------*/ 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- ---*/ 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- Basic globals about the address space. ---*/ 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- ---*/ 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*-----------------------------------------------------------------*/ 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Client address space, lowest to highest (see top of ume.c) */ 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// TODO: get rid of as many of these as possible. 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 47436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov/* ***Initial*** lowest address of the stack segment of the main thread. 48436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov The main stack will grow if needed but VG_(clstk_base) will 49436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov not be changed according to the growth. */ 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(clstk_base) = 0; 51436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov/* Initial highest address of the stack segment of the main thread. */ 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(clstk_end) = 0; 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownUWord VG_(clstk_id) = 0; 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 55b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov/* linux only: where is the client auxv ? */ 56b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov/* This is set up as part of setup_client_stack in initimg-linux.c. */ 57b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy StepanovUWord* VG_(client_auxv) = NULL; 58b32f58018498ea2225959b0ba11c18f0c433deefEvgeniy Stepanov 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(brk_base) = 0; /* start of brk */ 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(brk_limit) = 0; /* current brk */ 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* A fd which refers to the client executable. */ 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt VG_(cl_exec_fd) = -1; 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* A fd which refers to the fake /proc/<pid>/cmdline in /tmp. */ 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt VG_(cl_cmdline_fd) = -1; 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 68436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov/* A fd which refers to the fake /proc/<pid>/auxv in /tmp. */ 69436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy IvanovInt VG_(cl_auxv_fd) = -1; 70436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Command line pieces, after they have been extracted from argv in 72436e89c602e787e7a27dd6624b09beed41a0da8aDmitriy Ivanov// m_main.main(). The payload vectors are allocated in VG_AR_CORE 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// (the default arena). They are never freed. 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Args for the client. */ 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownXArray* /* of HChar* */ VG_(args_for_client) = NULL; 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Args for V (augments, then those from the launcher). */ 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownXArray* /* of HChar* */ VG_(args_for_valgrind) = NULL; 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* How many of the above not to pass on at execve time? */ 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt VG_(args_for_valgrind_noexecpass) = 0; 83ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 84ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* The name of the client executable, as specified on the command 85ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown line. */ 86ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownconst HChar* VG_(args_the_exename) = NULL; 87ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 88ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Client's original rlimit data and rlimit stack 89ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstruct vki_rlimit VG_(client_rlimit_data); 90ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownstruct vki_rlimit VG_(client_rlimit_stack); 91ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 92ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Name of the launcher, as extracted from VALGRIND_LAUNCHER at 93ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// startup. 94ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownHChar* VG_(name_of_launcher) = NULL; 95ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 96ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Application-visible file descriptor limits */ 97ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt VG_(fd_soft_limit) = -1; 98ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownInt VG_(fd_hard_limit) = -1; 99ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Useful addresses extracted from the client */ 101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Where is the __libc_freeres_wrapper routine we made? */ 102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(client___libc_freeres_wrapper) = 0; 103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* x86-linux only: where is glibc's _dl_sysinfo_int80 function? 105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Finding it isn't essential, but knowing where it is does sometimes 106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown help produce better back traces. See big comment in 107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown VG_(get_StackTrace) in m_stacktrace.c for further info. */ 108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownAddr VG_(client__dl_sysinfo_int80) = 0; 109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end ---*/ 113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 114