
/*--------------------------------------------------------------------*/
/*--- Command line options.                     pub_core_options.h ---*/
/*--------------------------------------------------------------------*/

/*
   This file is part of Valgrind, a dynamic binary instrumentation
   framework.

   Copyright (C) 2000-2008 Julian Seward
      jseward@acm.org

   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
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   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.
*/

#ifndef __PUB_CORE_OPTIONS_H
#define __PUB_CORE_OPTIONS_H

//--------------------------------------------------------------------
// PURPOSE: This module holds the variables for all command line options,
// plus some functions and macros for manipulating them.  Almost every
// other module imports this one, if only for VG_(clo_verbosity).
//--------------------------------------------------------------------

#include "pub_tool_options.h"

/* The max number of suppression files. */
#define VG_CLO_MAX_SFILES 100

/* Should we stop collecting errors if too many appear?  default: YES */
extern Bool  VG_(clo_error_limit);
/* Alternative exit code to hand to parent if errors were found.
   default: 0 (no, return the application's exit code in the normal
   way. */
extern Int   VG_(clo_error_exitcode);
/* Enquire about whether to attach to a debugger at errors?   default: NO */
extern Bool  VG_(clo_db_attach);
/* The debugger command?  default: whatever gdb ./configure found */
extern Char* VG_(clo_db_command);
/* Generating a suppression for each error?   default: 0 (NO)
   Other values: 1 (yes, but ask user), 2 (yes, don't ask user) */
extern Int   VG_(clo_gen_suppressions);
/* Sanity-check level: 0 = none, 1 (default), > 1 = expensive. */
extern Int   VG_(clo_sanity_level);
/* Automatically attempt to demangle C++ names?  default: YES */
extern Bool  VG_(clo_demangle);
/* Simulate child processes? default: NO */
extern Bool  VG_(clo_trace_children);
/* After a fork, the child's output can become confusingly
   intermingled with the parent's output.  This is especially
   problematic when VG_(clo_xml) is True.  Setting
   VG_(clo_child_silent_after_fork) causes children to fall silent
   after fork() calls. */
extern Bool  VG_(clo_child_silent_after_fork);

/* Where logging output is to be sent to.

   With --log-fd (and by default), clo_log_fd holds the file id, and is
   taken from the command line.  (fd 2, stderr, is the default.)
   clo_log_name is irrelevant.

   With --log-file, clo_log_name holds the log-file name, and is taken from
   the command line (and possibly has process ID/env var contents in it, if
   the %p or %q format specifiers are used).  clo_log_fd is then made to
   hold the relevant file id, by opening clo_log_name (concatenated with the
   process ID) for writing.

   With --log-socket, clo_log_name holds the hostname:portnumber pair,
   and is taken from the command line.  clo_log_fd is then made to hold
   the relevant file handle, by opening a connection to that
   hostname:portnumber pair. 

   Global default is to set log_to == VgLogTo_Fd and log_fd == 2
   (stderr). */
extern Int   VG_(clo_log_fd);
extern Char* VG_(clo_log_name);

/* Add timestamps to log messages?  default: NO */
extern Bool  VG_(clo_time_stamp);

/* The file descriptor to read for input.  default: 0 == stdin */
extern Int   VG_(clo_input_fd);
/* The number of suppression files specified. */
extern Int   VG_(clo_n_suppressions);
/* The names of the suppression files. */
extern Char* VG_(clo_suppressions)[VG_CLO_MAX_SFILES];

/* DEBUG: print generated code?  default: 00000000 ( == NO ) */
extern UChar VG_(clo_trace_flags);
/* DEBUG: do bb profiling?  default: 00000000 ( == NO ) */
extern UChar VG_(clo_profile_flags);
/* DEBUG: if tracing codegen, be quiet until after this bb ( 0 ) */
extern Int   VG_(clo_trace_notbelow);
/* DEBUG: print system calls?  default: NO */
extern Bool  VG_(clo_trace_syscalls);
/* DEBUG: print signal details?  default: NO */
extern Bool  VG_(clo_trace_signals);
/* DEBUG: print symtab details?  default: NO */
extern Bool  VG_(clo_trace_symtab);
/* DEBUG: restrict symtab etc details to object name pattern.  Default: "*" */
extern HChar* VG_(clo_trace_symtab_patt);
/* DEBUG: print call-frame-info details?  default: NO */
extern Bool  VG_(clo_trace_cfi);
/* DEBUG:  mimic /usr/bin/readelf --syms?  default: NO */
extern Bool  VG_(clo_debug_dump_syms);
/* DEBUG: mimic /usr/bin/readelf --debug-dump=line?  default: NO */
extern Bool  VG_(clo_debug_dump_line);
/* DEBUG: mimic  /usr/bin/readelf --debug-dump=frames?  default: NO */
extern Bool  VG_(clo_debug_dump_frames);
/* DEBUG: print redirection details?  default: NO */
extern Bool  VG_(clo_trace_redir);
/* DEBUG: print thread scheduling events?  default: NO */
extern Bool  VG_(clo_trace_sched);
/* DEBUG: do heap profiling?  default: NO */
extern Bool  VG_(clo_profile_heap);
/* DEBUG: display gory details for the k'th most popular error.
   default: Infinity. */
extern Int   VG_(clo_dump_error);
/* Engage miscellaneous weird hacks needed for some progs. */
extern Char* VG_(clo_sim_hints);
/* Show symbols in the form 'name+offset' ?  Default: NO */
extern Bool VG_(clo_sym_offsets);
/* Read DWARF3 variable info even if tool doesn't ask for it? */
extern Bool VG_(clo_read_var_info);

/* Track open file descriptors? */
extern Bool  VG_(clo_track_fds);

/* Should we run __libc_freeres at exit?  Sometimes causes crashes.
   Default: YES.  Note this is subservient to VG_(needs).libc_freeres;
   if the latter says False, then the setting of VG_(clo_run_libc_freeres)
   is ignored.  Ie if a tool says no, I don't want this to run, that
   cannot be overridden from the command line. */
extern Bool  VG_(clo_run_libc_freeres);
/* Continue stack traces below main()?  Default: NO */
extern Bool VG_(clo_show_below_main);

/* Should we show VEX emulation warnings?  Default: NO */
extern Bool VG_(clo_show_emwarns);

/* How much does the stack pointer have to change before tools
   consider a stack switch to have happened?  Default: 2000000 bytes
   NB: must be host-word-sized to be correct (hence Word). */
extern Word VG_(clo_max_stackframe);
/* How large should Valgrind allow the primary thread's guest stack to
   be? */
extern Word VG_(clo_main_stacksize);

/* Delay startup to allow GDB to be attached?  Default: NO */
extern Bool VG_(clo_wait_for_gdb);

/* To what extent should self-checking translations be made?  These
   are needed to deal with self-modifying code on uncooperative
   platforms. */
typedef 
   enum { 
      Vg_SmcNone,  // never generate self-checking translations
      Vg_SmcStack, // generate s-c-t's for code found in stacks
                   // (this is the default)
      Vg_SmcAll    // make all translations self-checking.
   } 
   VgSmc;

/* Describe extent to which self-modifying-code should be
   auto-detected. */
extern VgSmc VG_(clo_smc_check);

/* String containing comma-separated names of minor kernel variants,
   so they can be properly handled by m_syswrap. */
extern HChar* VG_(clo_kernel_variant);

/* --------- Functions --------- */

/* Call this if the executable is missing.  This function prints an
   error message, then shuts down the entire system. */
__attribute__((noreturn))
extern void VG_(err_missing_prog) ( void );

/* Similarly - complain and stop if there is some kind of config
   error. */
__attribute__((noreturn))
extern void VG_(err_config_error) ( Char* msg );


#endif   // __PUB_CORE_OPTIONS_H

/*--------------------------------------------------------------------*/
/*--- end                                                          ---*/
/*--------------------------------------------------------------------*/