1usage: valgrind [options] prog-and-args 2 3 tool-selection option, with default in [ ]: 4 --tool=<name> use the Valgrind tool named <name> [memcheck] 5 6 basic user options for all Valgrind tools, with defaults in [ ]: 7 -h --help show this message 8 --help-debug show this message, plus debugging options 9 --version show version 10 -q --quiet run silently; only print error msgs 11 -v --verbose be more verbose -- show misc extra info 12 --trace-children=no|yes Valgrind-ise child processes (follow execve)? [no] 13 --trace-children-skip=patt1,patt2,... specifies a list of executables 14 that --trace-children=yes should not trace into 15 --child-silent-after-fork=no|yes omit child output between fork & exec? [no] 16 --track-fds=no|yes track open file descriptors? [no] 17 --time-stamp=no|yes add timestamps to log messages? [no] 18 --log-fd=<number> log messages to file descriptor [2=stderr] 19 --log-file=<file> log messages to <file> 20 --log-socket=ipaddr:port log messages to socket ipaddr:port 21 22 user options for Valgrind tools that report errors: 23 --xml=yes emit error output in XML (some tools only) 24 --xml-fd=<number> XML output to file descriptor 25 --xml-file=<file> XML output to <file> 26 --xml-socket=ipaddr:port XML output to socket ipaddr:port 27 --xml-user-comment=STR copy STR verbatim into XML output 28 --demangle=no|yes automatically demangle C++ names? [yes] 29 --num-callers=<number> show <number> callers in stack traces [12] 30 --error-limit=no|yes stop showing new errors if too many? [yes] 31 --error-exitcode=<number> exit code to return if errors found [0=disable] 32 --show-below-main=no|yes continue stack traces below main() [no] 33 --suppressions=<filename> suppress errors described in <filename> 34 --gen-suppressions=no|yes|all print suppressions for errors? [no] 35 --db-attach=no|yes start debugger when errors detected? [no] 36 --db-command=<command> command to start debugger [... -nw %f %p] 37 --input-fd=<number> file descriptor for input [0=stdin] 38 --dsymutil=no|yes run dsymutil on Mac OS X when helpful? [no] 39 --max-stackframe=<number> assume stack switch for SP changes larger 40 than <number> bytes [2000000] 41 --main-stacksize=<number> set size of main thread's stack (in bytes) 42 [use current 'ulimit' value] 43 44 user options for Valgrind tools that replace malloc: 45 --alignment=<number> set minimum alignment of heap allocations [...] 46 47 uncommon user options for all Valgrind tools: 48 --fullpath-after= (with nothing after the '=') 49 show full source paths in call stacks 50 --fullpath-after=string like --fullpath-after=, but only show the 51 part of the path after 'string'. Allows removal 52 of path prefixes. Use this flag multiple times 53 to specify a set of prefixes to remove. 54 --smc-check=none|stack|all checks for self-modifying code: none, 55 only for code found in stacks, or all [stack] 56 --read-var-info=yes|no read debug info on stack and global variables 57 and use it to print better error messages in 58 tools that make use of it (Memcheck, Helgrind, 59 DRD) [no] 60 --run-libc-freeres=no|yes free up glibc memory at exit on Linux? [yes] 61 --sim-hints=hint1,hint2,... known hints: 62 lax-ioctls, enable-outer [none] 63 --kernel-variant=variant1,variant2,... known variants: bproc [none] 64 handle non-standard kernel variants 65 --show-emwarns=no|yes show warnings about emulation limits? [no] 66 --require-text-symbol=:sonamepattern:symbolpattern abort run if the 67 stated shared object doesn't have the stated 68 text symbol. Patterns can contain ? and *. 69 70 user options for Nulgrind: 71 (none) 72 73 debugging options for all Valgrind tools: 74 -d show verbose debugging output 75 --stats=no|yes show tool and core statistics [no] 76 --sanity-level=<number> level of sanity checking to do [1] 77 --trace-flags=<XXXXXXXX> show generated code? (X = 0|1) [00000000] 78 --profile-flags=<XXXXXXXX> ditto, but for profiling (X = 0|1) [00000000] 79 --trace-notbelow=<number> only show BBs above <number> [999999999] 80 --trace-syscalls=no|yes show all system calls? [no] 81 --trace-signals=no|yes show signal handling details? [no] 82 --trace-symtab=no|yes show symbol table details? [no] 83 --trace-symtab-patt=<patt> limit debuginfo tracing to obj name <patt> 84 --trace-cfi=no|yes show call-frame-info details? [no] 85 --debug-dump=syms mimic /usr/bin/readelf --syms 86 --debug-dump=line mimic /usr/bin/readelf --debug-dump=line 87 --debug-dump=frames mimic /usr/bin/readelf --debug-dump=frames 88 --trace-redir=no|yes show redirection details? [no] 89 --trace-sched=no|yes show thread scheduler details? [no] 90 --profile-heap=no|yes profile Valgrind's own space use 91 --wait-for-gdb=yes|no pause on startup to wait for gdb attach 92 --sym-offsets=yes|no show syms in form 'name+offset' ? [no] 93 --command-line-only=no|yes only use command line options [no] 94 95 Vex options for all Valgrind tools: 96 --vex-iropt-verbosity=<0..9> [0] 97 --vex-iropt-level=<0..2> [2] 98 --vex-iropt-precise-memory-exns=no|yes [no] 99 --vex-iropt-unroll-thresh=<0..400> [120] 100 --vex-guest-max-insns=<1..100> [50] 101 --vex-guest-chase-thresh=<0..99> [10] 102 --vex-guest-chase-cond=no|yes [no] 103 --trace-flags and --profile-flags values (omit the middle space): 104 1000 0000 show conversion into IR 105 0100 0000 show after initial opt 106 0010 0000 show after instrumentation 107 0001 0000 show after second opt 108 0000 1000 show after tree building 109 0000 0100 show selecting insns 110 0000 0010 show after reg-alloc 111 0000 0001 show final assembly 112 (Nb: you need --trace-notbelow with --trace-flags for full details) 113 114 debugging options for Valgrind tools that report errors 115 --dump-error=<number> show translation for basic block associated 116 with <number>'th error context [0=show none] 117 118 debugging options for Valgrind tools that replace malloc: 119 --trace-malloc=no|yes show client malloc details? [no] 120 121 debugging options for Nulgrind: 122 (none) 123 124 Extra options read from ~/.valgrindrc, $VALGRIND_OPTS, ./.valgrindrc 125 126 Nulgrind is Copyright (C) 2002-2010, and GNU GPL'd, by Nicholas Nethercote. 127 Valgrind is Copyright (C) 2000-2010, and GNU GPL'd, by Julian Seward et al. 128 LibVEX is Copyright (C) 2004-2010, and GNU GPL'd, by OpenWorks LLP et al. 129 130 Bug reports, feedback, admiration, abuse, etc, to: www.valgrind.org. 131 132