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* For tools replacing the malloc library (e.g. Memcheck, Helgrind, ...), the option --redzone-size=<number> allows to control the padding blocks (redzones) added before and after each client allocated block. Smaller redzones decrease the memory needed by Valgrind. Bigger redzones increase the chance to detect blocks overrun or underrun. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12807
100 lines
6.0 KiB
Plaintext
100 lines
6.0 KiB
Plaintext
usage: valgrind [options] prog-and-args
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tool-selection option, with default in [ ]:
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--tool=<name> use the Valgrind tool named <name> [memcheck]
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basic user options for all Valgrind tools, with defaults in [ ]:
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-h --help show this message
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--help-debug show this message, plus debugging options
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--version show version
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-q --quiet run silently; only print error msgs
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-v --verbose be more verbose -- show misc extra info
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--trace-children=no|yes Valgrind-ise child processes (follow execve)? [no]
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--trace-children-skip=patt1,patt2,... specifies a list of executables
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that --trace-children=yes should not trace into
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--trace-children-skip-by-arg=patt1,patt2,... same as --trace-children-skip=
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but check the argv[] entries for children, rather
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than the exe name, to make a follow/no-follow decision
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--child-silent-after-fork=no|yes omit child output between fork & exec? [no]
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--vgdb=no|yes|full activate gdbserver? [yes]
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full is slower but provides precise watchpoint/step
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--vgdb-error=<number> invoke gdbserver after <number> errors [999999999]
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to get started quickly, use --vgdb-error=0
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and follow the on-screen directions
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--track-fds=no|yes track open file descriptors? [no]
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--time-stamp=no|yes add timestamps to log messages? [no]
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--log-fd=<number> log messages to file descriptor [2=stderr]
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--log-file=<file> log messages to <file>
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--log-socket=ipaddr:port log messages to socket ipaddr:port
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user options for Valgrind tools that report errors:
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--xml=yes emit error output in XML (some tools only)
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--xml-fd=<number> XML output to file descriptor
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--xml-file=<file> XML output to <file>
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--xml-socket=ipaddr:port XML output to socket ipaddr:port
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--xml-user-comment=STR copy STR verbatim into XML output
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--demangle=no|yes automatically demangle C++ names? [yes]
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--num-callers=<number> show <number> callers in stack traces [12]
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--error-limit=no|yes stop showing new errors if too many? [yes]
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--error-exitcode=<number> exit code to return if errors found [0=disable]
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--show-below-main=no|yes continue stack traces below main() [no]
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--suppressions=<filename> suppress errors described in <filename>
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--gen-suppressions=no|yes|all print suppressions for errors? [no]
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--db-attach=no|yes start debugger when errors detected? [no]
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--db-command=<command> command to start debugger [... -nw %f %p]
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--input-fd=<number> file descriptor for input [0=stdin]
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--dsymutil=no|yes run dsymutil on Mac OS X when helpful? [no]
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--max-stackframe=<number> assume stack switch for SP changes larger
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than <number> bytes [2000000]
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--main-stacksize=<number> set size of main thread's stack (in bytes)
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[use current 'ulimit' value]
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user options for Valgrind tools that replace malloc:
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--alignment=<number> set minimum alignment of heap allocations [not used by this tool]
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--redzone-size=<number> set minimum size of redzones added before/after
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heap blocks (in bytes). [not used by this tool]
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uncommon user options for all Valgrind tools:
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--fullpath-after= (with nothing after the '=')
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show full source paths in call stacks
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--fullpath-after=string like --fullpath-after=, but only show the
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part of the path after 'string'. Allows removal
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of path prefixes. Use this flag multiple times
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to specify a set of prefixes to remove.
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--smc-check=none|stack|all|all-non-file [stack]
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checks for self-modifying code: none, only for
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code found in stacks, for all code, or for all
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code except that from file-backed mappings
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--read-var-info=yes|no read debug info on stack and global variables
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and use it to print better error messages in
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tools that make use of it (Memcheck, Helgrind,
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DRD) [no]
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--vgdb-poll=<number> gdbserver poll max every <number> basic blocks [5000]
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--vgdb-shadow-registers=no|yes let gdb see the shadow registers [no]
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--vgdb-prefix=<prefix> prefix for vgdb FIFOs [/tmp/vgdb-pipe]
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--run-libc-freeres=no|yes free up glibc memory at exit on Linux? [yes]
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--sim-hints=hint1,hint2,... known hints:
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lax-ioctls, enable-outer, fuse-compatible [none]
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--fair-sched=no|yes|try schedule threads fairly on multicore systems [no]
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--kernel-variant=variant1,variant2,... known variants: bproc [none]
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handle non-standard kernel variants
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--show-emwarns=no|yes show warnings about emulation limits? [no]
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--require-text-symbol=:sonamepattern:symbolpattern abort run if the
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stated shared object doesn't have the stated
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text symbol. Patterns can contain ? and *.
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--soname-synonyms=syn1=pattern1,syn2=pattern2,... synonym soname
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patterns for some Valgrind wrapping
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or replacement (such as malloc replacement)
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user options for Nulgrind:
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(none)
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Extra options read from ~/.valgrindrc, $VALGRIND_OPTS, ./.valgrindrc
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Nulgrind is Copyright (C) 2002-2011, and GNU GPL'd, by Nicholas Nethercote.
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Valgrind is Copyright (C) 2000-2011, and GNU GPL'd, by Julian Seward et al.
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LibVEX is Copyright (C) 2004-2011, and GNU GPL'd, by OpenWorks LLP et al.
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Bug reports, feedback, admiration, abuse, etc, to: www.valgrind.org.
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