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/*--- Command line options. pub_core_options.h ---*/
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.
// 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"
#include "pub_core_xarray.h"
/* 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);
enum {
Vg_VgdbNo, // Do not activate gdbserver.
Vg_VgdbYes, // Activate gdbserver (default).
Vg_VgdbFull, // ACtivate gdbserver in full mode, allowing
// a precise handling of watchpoints and single stepping
// at any moment.
/* if != Vg_VgdbNo, allows valgrind to serve vgdb/gdb. */
extern VgVgdb VG_(clo_vgdb);
/* if > 0, checks every VG_(clo_vgdb_poll) BBS if vgdb wants to be served. */
extern Int VG_(clo_vgdb_poll);
/* Specify when Valgrind gdbserver stops the execution and wait
for a GDB to connect. */
enum { // Stop :
VgdbStopAt_Startup, // just before the client starts to execute.
VgdbStopAt_Exit, // just before the client exits.
VgdbStopAt_ValgrindAbExit // on abnormal valgrind exit.
// Build mask to check or set VgdbStop_At a membership
#define VgdbStopAt2S(a) (1 << (a))
// VgdbStopAt a is member of the Set s ?
#define VgdbStopAtiS(a,s) ((s) & VgdbStopAt2S(a))
extern UInt VG_(clo_vgdb_stop_at); // A set of VgdbStopAt reasons.
/* prefix for the named pipes (FIFOs) used by vgdb/gdb to communicate with valgrind */
extern const HChar *VG_(clo_vgdb_prefix);
/* if True, gdbserver in valgrind will expose a target description containing
shadow registers */
extern Bool VG_(clo_vgdb_shadow_registers);
/* 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 const HChar* 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 */
/* Soname synonyms : a string containing a list of pairs
xxxxx=yyyyy separated by commas.
E.g. --soname-synonyms=somalloc=libtcmalloc*.so*,solibtruc=NONE */
extern const HChar* VG_(clo_soname_synonyms);
extern Bool VG_(clo_trace_children);
/* String containing comma-separated patterns for executable names
that should not be traced into even when --trace-children=yes */
extern const HChar* VG_(clo_trace_children_skip);
/* The same as VG_(clo_trace_children), except that these patterns are
tested against the arguments for child processes, rather than the
executable name. */
extern const HChar* VG_(clo_trace_children_skip_by_arg);
/* 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. Although note they become un-silent again
after the subsequent exec(). */
extern Bool VG_(clo_child_silent_after_fork);
/* If the user specified --log-file=STR and/or --xml-file=STR, these
hold STR after expansion of the %p and %q templates. */
extern const HChar* VG_(clo_log_fname_expanded);
extern const HChar* VG_(clo_xml_fname_expanded);
/* 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);
/* Whether or not to load the default suppressions. */
extern Bool VG_(clo_default_supp);
/* The names of the suppression files. */
extern XArray *VG_(clo_suppressions);
/* An array of strings harvested from --fullpath-after= flags. */
extern XArray *VG_(clo_fullpath_after);
/* Full path to additional path to search for debug symbols */
extern const HChar* VG_(clo_extra_debuginfo_path);
/* Address of a debuginfo server to use. Either an IPv4 address of
the form "d.d.d.d" or that plus a port spec, hence of the form
"d.d.d.d:d", where d is one or more digits. */
extern const HChar* VG_(clo_debuginfo_server);
/* Do we allow reading debuginfo from debuginfo objects that don't
match (in some sense) the main object? This is dangerous, so the
default is NO (False). In any case it applies only to objects
found either in _extra_debuginfo_path or via the
_debuginfo_server. */
extern Bool VG_(clo_allow_mismatched_debuginfo);
/* DEBUG: print generated code? default: 00000000 ( == NO ) */
extern UChar VG_(clo_trace_flags);
/* DEBUG: do SB profiling? default: False (== NO). NOTE: does not
have an associated command line flag. Is set to True whenever
--profile-flags= is specified. */
extern Bool VG_(clo_profyle_sbs);
/* DEBUG: if doing SB profiling, provides bits for which JIT stages
are shown. Same meaning as for clo_trace_flags. default: zero (==
show block counts only) */
extern UChar VG_(clo_profyle_flags);
/* DEBUG: if doing SB profiling, dump blocks and zero counters after
this-many back edges (event checks). default: zero (== show
profiling results only at the end of the run. */
extern ULong VG_(clo_profyle_interval);
/* DEBUG: if tracing codegen, be quiet until after this bb */
extern Int VG_(clo_trace_notbelow);
/* DEBUG: if tracing codegen, be quiet after this bb */
extern Int VG_(clo_trace_notabove);
/* 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 const 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);
/* Enable fair scheduling on multicore systems? default: NO */
enum FairSchedType { disable_fair_sched, enable_fair_sched, try_fair_sched };
extern enum FairSchedType VG_(clo_fair_sched);
/* 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);
#define MAX_REDZONE_SZB 128
// Maximum for the default values for core arenas and for client
// arena given by the tool.
// 128 is no special figure, just something not too big
#define MAX_CLO_REDZONE_SZB 4096
// We allow the user to increase the redzone size to 4Kb :
// This allows "off by one" in an array of pages to be detected.
extern Int VG_(clo_core_redzone_size);
// VG_(clo_redzone_size) has default value -1, indicating to keep
// the tool provided value.
extern Int VG_(clo_redzone_size);
/* 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. */
enum {
// Build mask to check or set SimHint a membership
#define SimHint2S(a) (1 << (a))
// SimHint h is member of the Set s ?
#define SimHintiS(h,s) ((s) & SimHint2S(h))
extern UInt VG_(clo_sim_hints);
/* Show symbols in the form 'name+offset' ? Default: NO */
extern Bool VG_(clo_sym_offsets);
/* Read DWARF3 inline info ? */
extern Bool VG_(clo_read_inline_info);
/* Read DWARF3 variable info even if tool doesn't ask for it? */
extern Bool VG_(clo_read_var_info);
/* Which prefix to strip from full source file paths, if any. */
extern const HChar* VG_(clo_prefix_to_strip);
/* An array of strings harvested from --require-text-symbol=
Each string specifies a pair: a soname pattern and a text symbol
name pattern, separated by a colon. The patterns can be written
using the normal "?" and "*" wildcards. For example:
These flags take effect when reading debuginfo from objects. If an
object is loaded and the object's soname matches the soname
component of one of the specified pairs, then Valgrind will examine
all the text symbol names in the object. If none of them match the
symbol name component of that same specification, then the run is
aborted, with an error message.
The purpose of this is to support reliable usage of marked-up
libraries. For example, suppose we have a version of GCC's which has been marked up with annotations to support
Helgrind. It is only too easy and confusing to load the 'wrong' into the application. So the idea is: add a text symbol
in the marked-up library (eg), "annotated_for_helgrind_3_6", and
then give the flag
so that when is loaded, we scan the symbol table, and if
the symbol isn't present the run is aborted, rather than continuing
silently with the un-marked-up library. Note that you should put
the entire flag in quotes to stop shells messing up the * and ?
wildcards. */
extern XArray *VG_(clo_req_tsyms);
/* 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);
/* 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);
/* If the same IP is found twice in a backtrace in a sequence of max
VG_(clo_merge_recursive_frames) frames, then the recursive call
is merged in the backtrace.
Note also that the merge is done during unwinding, to obtain
an much as possible significant backtrace.
Note that the value is changeable by a gdbsrv command. */
extern Int VG_(clo_merge_recursive_frames);
/* Max number of sectors that will be used by the translation code cache. */
extern UInt VG_(clo_num_transtab_sectors);
/* Only client requested fixed mapping can be done below
VG_(clo_aspacem_minAddr). */
extern Addr VG_(clo_aspacem_minAddr);
/* 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. */
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.
Vg_SmcAllNonFile // make all translations derived from
// non-file-backed memory self checking
/* Describe extent to which self-modifying-code should be
auto-detected. */
extern VgSmc VG_(clo_smc_check);
/* A set of minor kernel variants,
so they can be properly handled by m_syswrap. */
enum {
// Build mask to check or set KernelVariant a membership
#define KernelVariant2S(v) (1 << (v))
// KernelVariant v is member of the Set s ?
#define KernelVariantiS(v,s) ((s) & KernelVariant2S(v))
extern UInt VG_(clo_kernel_variant);
/* Darwin-specific: automatically run /usr/bin/dsymutil to update
.dSYM directories as necessary? */
extern Bool VG_(clo_dsymutil);
/* Should we trace into this child executable (across execve etc) ?
This involves considering --trace-children=,
--trace-children-skip=, --trace-children-skip-by-arg=, and the name
of the executable. 'child_argv' must not include the name of the
executable itself; iow child_argv[0] must be the first arg, if any,
for the child. */
extern Bool VG_(should_we_trace_this_child) ( const HChar* child_exe_name,
const HChar** child_argv );
/* Whether illegal instructions should be reported/diagnosed.
Can be explicitly set through --sigill-diagnostics otherwise
depends on verbosity (False if -q). */
extern Bool VG_(clo_sigill_diag);
/* Unwind using stack scanning (a nasty hack at the best of times)
when the normal CFI/FP-chain scan fails. If the number of
"normally" recovered frames is below this number, stack scanning
will be used (on platforms on which it is supported, currently only
arm-linux). The default value of zero has the effect of disabling
stack scanning. Default: zero*/
extern UInt VG_(clo_unw_stack_scan_thresh);
/* If stack scanning is used, this is how many frames it may recover.
Since it tends to pick up a lot of junk, this value is set pretty
low by default. Default: 5 */
extern UInt VG_(clo_unw_stack_scan_frames);
#endif // __PUB_CORE_OPTIONS_H
/*--- end ---*/