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/*--- A home for miscellaneous bits of information which pertain ---*/
/*--- to the client's state. ---*/
/*--- m_clientstate.c ---*/
This file is part of Valgrind, a dynamic binary instrumentation
Copyright (C) 2000-2013 Julian Seward
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
#include "pub_core_basics.h"
#include "pub_core_vki.h"
#include "pub_core_xarray.h"
#include "pub_core_clientstate.h"
/*--- ---*/
/*--- Basic globals about the address space. ---*/
/*--- ---*/
/* Client address space, lowest to highest (see top of ume.c) */
// TODO: get rid of as many of these as possible.
/* ***Initial*** lowest address of the stack segment of the main thread.
The main stack will grow if needed but VG_(clstk_start_base) will
not be changed according to the growth. */
Addr VG_(clstk_start_base) = 0;
/* Initial highest address of the stack segment of the main thread. */
Addr VG_(clstk_end) = 0;
UWord VG_(clstk_id) = 0;
/* linux only: where is the client auxv ? */
/* This is set up as part of setup_client_stack in initimg-linux.c. */
UWord* VG_(client_auxv) = NULL;
Addr VG_(brk_base) = 0; /* start of brk */
Addr VG_(brk_limit) = 0; /* current brk */
/* A fd which refers to the client executable. */
Int VG_(cl_exec_fd) = -1;
/* A fd which refers to the fake /proc/<pid>/cmdline in /tmp. */
Int VG_(cl_cmdline_fd) = -1;
/* A fd which refers to the fake /proc/<pid>/auxv in /tmp. */
Int VG_(cl_auxv_fd) = -1;
// Command line pieces, after they have been extracted from argv in
// m_main.main(). The payload vectors are allocated in VG_AR_CORE
// (the default arena). They are never freed.
/* Args for the client. */
XArray* /* of HChar* */ VG_(args_for_client) = NULL;
/* Args for V (augments, then those from the launcher). */
XArray* /* of HChar* */ VG_(args_for_valgrind) = NULL;
/* How many of the above not to pass on at execve time? */
Int VG_(args_for_valgrind_noexecpass) = 0;
/* The name of the client executable, as specified on the command
line. */
const HChar* VG_(args_the_exename) = NULL;
// Client's original rlimit data and rlimit stack
struct vki_rlimit VG_(client_rlimit_data);
struct vki_rlimit VG_(client_rlimit_stack);
// Name of the launcher, as extracted from VALGRIND_LAUNCHER at
// startup.
HChar* VG_(name_of_launcher) = NULL;
/* Application-visible file descriptor limits */
Int VG_(fd_soft_limit) = -1;
Int VG_(fd_hard_limit) = -1;
/* Useful addresses extracted from the client */
/* Where is the __libc_freeres_wrapper routine we made? */
Addr VG_(client___libc_freeres_wrapper) = 0;
/* x86-linux only: where is glibc's _dl_sysinfo_int80 function?
Finding it isn't essential, but knowing where it is does sometimes
help produce better back traces. See big comment in
VG_(get_StackTrace) in m_stacktrace.c for further info. */
Addr VG_(client__dl_sysinfo_int80) = 0;
/* Address of the (internal) glibc nptl pthread stack cache size,
declared as:
static size_t stack_cache_actsize;
in nptl/allocatestack.c */
SizeT* VG_(client__stack_cache_actsize__addr) = 0;
/*--- end ---*/