usage: valgrind [options] prog-and-args tool-selection option, with default in [ ]: --tool= use the Valgrind tool named [memcheck] basic user options for all Valgrind tools, with defaults in [ ]: -h --help show this message --help-debug show this message, plus debugging options --version show version -q --quiet run silently; only print error msgs -v --verbose be more verbose -- show misc extra info --trace-children=no|yes Valgrind-ise child processes (follow execve)? [no] --trace-children-skip=patt1,patt2,... specifies a list of executables that --trace-children=yes should not trace into --child-silent-after-fork=no|yes omit child output between fork & exec? [no] --track-fds=no|yes track open file descriptors? [no] --time-stamp=no|yes add timestamps to log messages? [no] --log-fd= log messages to file descriptor [2=stderr] --log-file= log messages to --log-socket=ipaddr:port log messages to socket ipaddr:port user options for Valgrind tools that report errors: --xml=yes emit error output in XML (some tools only) --xml-fd= XML output to file descriptor --xml-file= XML output to --xml-socket=ipaddr:port XML output to socket ipaddr:port --xml-user-comment=STR copy STR verbatim into XML output --demangle=no|yes automatically demangle C++ names? [yes] --num-callers= show callers in stack traces [12] --error-limit=no|yes stop showing new errors if too many? [yes] --error-exitcode= exit code to return if errors found [0=disable] --show-below-main=no|yes continue stack traces below main() [no] --suppressions= suppress errors described in --gen-suppressions=no|yes|all print suppressions for errors? [no] --db-attach=no|yes start debugger when errors detected? [no] --db-command= command to start debugger [... -nw %f %p] --input-fd= file descriptor for input [0=stdin] --dsymutil=no|yes run dsymutil on Mac OS X when helpful? [no] --max-stackframe= assume stack switch for SP changes larger than bytes [2000000] --main-stacksize= set size of main thread's stack (in bytes) [use current 'ulimit' value] user options for Valgrind tools that replace malloc: --alignment= set minimum alignment of heap allocations [...] uncommon user options for all Valgrind tools: --fullpath-after= (with nothing after the '=') show full source paths in call stacks --fullpath-after=string like --fullpath-after=, but only show the part of the path after 'string'. Allows removal of path prefixes. Use this flag multiple times to specify a set of prefixes to remove. --smc-check=none|stack|all checks for self-modifying code: none, only for code found in stacks, or all [stack] --read-var-info=yes|no read debug info on stack and global variables and use it to print better error messages in tools that make use of it (Memcheck, Helgrind, DRD) [no] --run-libc-freeres=no|yes free up glibc memory at exit on Linux? [yes] --sim-hints=hint1,hint2,... known hints: lax-ioctls, enable-outer [none] --kernel-variant=variant1,variant2,... known variants: bproc [none] handle non-standard kernel variants --show-emwarns=no|yes show warnings about emulation limits? [no] --require-text-symbol=:sonamepattern:symbolpattern abort run if the stated shared object doesn't have the stated text symbol. Patterns can contain ? and *. user options for Nulgrind: (none) debugging options for all Valgrind tools: -d show verbose debugging output --stats=no|yes show tool and core statistics [no] --sanity-level= level of sanity checking to do [1] --trace-flags= show generated code? (X = 0|1) [00000000] --profile-flags= ditto, but for profiling (X = 0|1) [00000000] --trace-notbelow= only show BBs above [999999999] --trace-syscalls=no|yes show all system calls? [no] --trace-signals=no|yes show signal handling details? [no] --trace-symtab=no|yes show symbol table details? [no] --trace-symtab-patt= limit debuginfo tracing to obj name --trace-cfi=no|yes show call-frame-info details? [no] --debug-dump=syms mimic /usr/bin/readelf --syms --debug-dump=line mimic /usr/bin/readelf --debug-dump=line --debug-dump=frames mimic /usr/bin/readelf --debug-dump=frames --trace-redir=no|yes show redirection details? [no] --trace-sched=no|yes show thread scheduler details? [no] --profile-heap=no|yes profile Valgrind's own space use --wait-for-gdb=yes|no pause on startup to wait for gdb attach --sym-offsets=yes|no show syms in form 'name+offset' ? [no] --command-line-only=no|yes only use command line options [no] Vex options for all Valgrind tools: --vex-iropt-verbosity=<0..9> [0] --vex-iropt-level=<0..2> [2] --vex-iropt-precise-memory-exns=no|yes [no] --vex-iropt-unroll-thresh=<0..400> [120] --vex-guest-max-insns=<1..100> [50] --vex-guest-chase-thresh=<0..99> [10] --vex-guest-chase-cond=no|yes [no] --trace-flags and --profile-flags values (omit the middle space): 1000 0000 show conversion into IR 0100 0000 show after initial opt 0010 0000 show after instrumentation 0001 0000 show after second opt 0000 1000 show after tree building 0000 0100 show selecting insns 0000 0010 show after reg-alloc 0000 0001 show final assembly (Nb: you need --trace-notbelow with --trace-flags for full details) debugging options for Valgrind tools that report errors --dump-error= show translation for basic block associated with 'th error context [0=show none] debugging options for Valgrind tools that replace malloc: --trace-malloc=no|yes show client malloc details? [no] debugging options for Nulgrind: (none) Extra options read from ~/.valgrindrc, $VALGRIND_OPTS, ./.valgrindrc Nulgrind is Copyright (C) 2002-2010, and GNU GPL'd, by Nicholas Nethercote. Valgrind is Copyright (C) 2000-2010, and GNU GPL'd, by Julian Seward et al. LibVEX is Copyright (C) 2004-2010, and GNU GPL'd, by OpenWorks LLP et al. Bug reports, feedback, admiration, abuse, etc, to: www.valgrind.org.