valgrind-3.13.0

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] --error-markers=<begin>,<end> add lines with begin/end markers before/after each error output in plain text mode [none] --show-below-main=no|yes continue stack traces below main() [no] --default-suppressions=yes|no load default suppressions [yes] --suppressions=<filename> suppress errors described in <filename> --gen-suppressions=no|yes|all print suppressions for errors? [no] --input-fd=<number> file descriptor for input [0=stdin] --dsymutil=no|yes run dsymutil on Mac OS X when helpful? [yes] --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 [16] --redzone-size=<number> set minimum size of redzones added before/after heap blocks (in bytes). [16] --xtree-memory=none|allocs|full profile heap memory in an xtree [none] and produces a report at the end of the execution none: no profiling, allocs: current allocated size/blocks, full: profile current and cumulative allocated size/blocks and freed size/blocks. --xtree-memory-file=<file> xtree memory report file [xtmemory.kcg.%p] 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 [all-non-file] 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-inline-info=yes|no read debug info about inlined function calls and use it to do better stack traces. [yes] on Linux/Android/Solaris for Memcheck/Helgrind/DRD only. [no] for all other tools and platforms. --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] --run-cxx-freeres=no|yes free up libstdc++ memory at exit on Linux and Solaris? [yes] --sim-hints=hint1,hint2,... activate unusual sim behaviours [none] where hint is one of: lax-ioctls lax-doors fuse-compatible enable-outer no-inner-prefix no-nptl-pthread-stackcache fallback-llsc none --fair-sched=no|yes|try schedule threads fairly on multicore systems [no] --kernel-variant=variant1,variant2,... handle non-standard kernel variants [none] where variant is one of: bproc android-no-hw-tls android-gpu-sgx5xx android-gpu-adreno3xx none --merge-recursive-frames=<number> merge frames between identical program counters in max <number> frames) [0] --num-transtab-sectors=<number> size of translated code cache [32] more sectors may increase performance, but use more memory. --avg-transtab-entry-size=<number> avg size in bytes of a translated basic block [0, meaning use tool provided default] --aspace-minaddr=0xPP avoid mapping memory below 0xPP [guessed] --valgrind-stacksize=<number> size of valgrind (host) thread's stack (in bytes) [1048576] --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] --resync-filter=no|yes|verbose [yes on MacOS, no on other OSes] attempt to avoid expensive address-space-resync operations --max-threads=<number> maximum number of threads that valgrind can handle [500] user options for Memcheck: --leak-check=no|summary|full search for memory leaks at exit? [summary] --leak-resolution=low|med|high differentiation of leak stack traces [high] --show-leak-kinds=kind1,kind2,.. which leak kinds to show? [definite,possible] --errors-for-leak-kinds=kind1,kind2,.. which leak kinds are errors? [definite,possible] where kind is one of: definite indirect possible reachable all none --leak-check-heuristics=heur1,heur2,... which heuristics to use for improving leak search false positive [all] where heur is one of: stdstring length64 newarray multipleinheritance all none --show-reachable=yes same as --show-leak-kinds=all --show-reachable=no --show-possibly-lost=yes same as --show-leak-kinds=definite,possible --show-reachable=no --show-possibly-lost=no same as --show-leak-kinds=definite --xtree-leak=no|yes output leak result in xtree format? [no] --xtree-leak-file=<file> xtree leak report file [xtleak.kcg.%p] --undef-value-errors=no|yes check for undefined value errors [yes] --track-origins=no|yes show origins of undefined values? [no] --partial-loads-ok=no|yes too hard to explain here; see manual [yes] --expensive-definedness-checks=no|yes Use extra-precise definedness tracking [no] --freelist-vol=<number> volume of freed blocks queue [20000000] --freelist-big-blocks=<number> releases first blocks with size>= [1000000] --workaround-gcc296-bugs=no|yes self explanatory [no]. Deprecated. Use --ignore-range-below-sp instead. --ignore-ranges=0xPP-0xQQ[,0xRR-0xSS] assume given addresses are OK --ignore-range-below-sp=<number>-<number> do not report errors for accesses at the given offsets below SP --malloc-fill=<hexnumber> fill malloc'd areas with given value --free-fill=<hexnumber> fill free'd areas with given value --keep-stacktraces=alloc|free|alloc-and-free|alloc-then-free|none stack trace(s) to keep for malloc'd/free'd areas [alloc-and-free] --show-mismatched-frees=no|yes show frees that don't match the allocator? [yes] Extra options read from ~/.valgrindrc, $VALGRIND_OPTS, ./.valgrindrc Memcheck is Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. Valgrind is Copyright (C) 2000-2017, and GNU GPL'd, by Julian Seward et al. LibVEX is Copyright (C) 2004-2017, and GNU GPL'd, by OpenWorks LLP et al. Bug reports, feedback, admiration, abuse, etc, to: www.valgrind.org.