| usage: valgrind [options] prog-and-args | |
| tool-selection option, with default in [ ]: | |
| --tool=<name> use the Valgrind tool named <name> [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 | |
| --trace-children-skip-by-arg=patt1,patt2,... same as --trace-children-skip= | |
| but check the argv[] entries for children, rather | |
| than the exe name, to make a follow/no-follow decision | |
| --child-silent-after-fork=no|yes omit child output between fork & exec? [no] | |
| --vgdb=no|yes|full activate gdbserver? [yes] | |
| full is slower but provides precise watchpoint/step | |
| --vgdb-error=<number> invoke gdbserver after <number> errors [999999999] | |
| to get started quickly, use --vgdb-error=0 | |
| and follow the on-screen directions | |
| --vgdb-stop-at=event1,event2,... invoke gdbserver for given events [none] | |
| where event is one of startup exit valgrindabexit all none | |
| --track-fds=no|yes track open file descriptors? [no] | |
| --time-stamp=no|yes add timestamps to log messages? [no] | |
| --log-fd=<number> log messages to file descriptor [2=stderr] | |
| --log-file=<file> log messages to <file> | |
| --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=<number> XML output to file descriptor | |
| --xml-file=<file> XML output to <file> | |
| --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=<number> show <number> callers in stack traces [12] | |
| --error-limit=no|yes stop showing new errors if too many? [yes] | |
| --error-exitcode=<number> exit code to return if errors found [0=disable] | |
| --show-below-main=no|yes continue stack traces below main() [no] | |
| --suppressions=<filename> suppress errors described in <filename> | |
| --gen-suppressions=no|yes|all print suppressions for errors? [no] | |
| --db-attach=no|yes start debugger when errors detected? [no] | |
| --db-command=<command> command to start debugger [... -nw %f %p] | |
| --input-fd=<number> file descriptor for input [0=stdin] | |
| --dsymutil=no|yes run dsymutil on Mac OS X when helpful? [no] | |
| --max-stackframe=<number> assume stack switch for SP changes larger | |
| than <number> bytes [2000000] | |
| --main-stacksize=<number> set size of main thread's stack (in bytes) | |
| [min(max(current 'ulimit' value,1MB),16MB)] | |
| user options for Valgrind tools that replace malloc: | |
| --alignment=<number> set minimum alignment of heap allocations [not used by this tool] | |
| --redzone-size=<number> set minimum size of redzones added before/after | |
| heap blocks (in bytes). [not used by this tool] | |
| 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. | |
| --extra-debuginfo-path=path absolute path to search for additional | |
| debug symbols, in addition to existing default | |
| well known search paths. | |
| --debuginfo-server=ipaddr:port also query this server | |
| (valgrind-di-server) for debug symbols | |
| --allow-mismatched-debuginfo=no|yes [no] | |
| for the above two flags only, accept debuginfo | |
| objects that don't "match" the main object | |
| --smc-check=none|stack|all|all-non-file [stack] | |
| checks for self-modifying code: none, only for | |
| code found in stacks, for all code, or for all | |
| code except that from file-backed mappings | |
| --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] | |
| --vgdb-poll=<number> gdbserver poll max every <number> basic blocks [5000] | |
| --vgdb-shadow-registers=no|yes let gdb see the shadow registers [no] | |
| --vgdb-prefix=<prefix> prefix for vgdb FIFOs [/tmp/vgdb-pipe] | |
| --run-libc-freeres=no|yes free up glibc memory at exit on Linux? [yes] | |
| --sim-hints=hint1,hint2,... known hints: | |
| lax-ioctls, enable-outer, fuse-compatible [none] | |
| --fair-sched=no|yes|try schedule threads fairly on multicore systems [no] | |
| --kernel-variant=variant1,variant2,... known variants: bproc [none] | |
| handle non-standard kernel variants | |
| --merge-recursive-frames=<number> merge frames between identical | |
| program counters in max <number> frames) [0] | |
| --num-transtab-sectors=<number> size of translated code cache [16] | |
| more sectors may increase performance, but use more memory. | |
| --aspace-minaddr=0xPP avoid mapping memory below 0xPP [guessed] | |
| --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 *. | |
| --soname-synonyms=syn1=pattern1,syn2=pattern2,... synonym soname | |
| specify patterns for function wrapping or replacement. | |
| To use a non-libc malloc library that is | |
| in the main exe: --soname-synonyms=somalloc=NONE | |
| in libxyzzy.so: --soname-synonyms=somalloc=libxyzzy.so | |
| --sigill-diagnostics=yes|no warn about illegal instructions? [yes] | |
| --unw-stack-scan-thresh=<number> Enable stack-scan unwind if fewer | |
| than <number> good frames found [0, meaning "disabled"] | |
| NOTE: stack scanning is only available on arm-linux. | |
| --unw-stack-scan-frames=<number> Max number of frames that can be | |
| recovered by stack scanning [5] | |
| user options for Nulgrind: | |
| (none) | |
| Extra options read from ~/.valgrindrc, $VALGRIND_OPTS, ./.valgrindrc | |
| Nulgrind is Copyright (C) 2002-2013, and GNU GPL'd, by Nicholas Nethercote. | |
| Valgrind is Copyright (C) 2000-2013, and GNU GPL'd, by Julian Seward et al. | |
| LibVEX is Copyright (C) 2004-2013, and GNU GPL'd, by OpenWorks LLP et al. | |
| Bug reports, feedback, admiration, abuse, etc, to: www.valgrind.org. | |