1 general valgrind monitor commands: 2 help [debug] : monitor command help. With debug: + debugging commands 3 v.wait [<ms>] : sleep <ms> (default 0) then continue 4 v.info all_errors : show all errors found so far 5 v.info last_error : show last error found 6 v.info location <addr> : show information about location <addr> 7 v.info n_errs_found [msg] : show the nr of errors found so far and the given msg 8 v.info open_fds : show open file descriptors (only if --track-fds=yes) 9 v.kill : kill the Valgrind process 10 v.set gdb_output : set valgrind output to gdb 11 v.set log_output : set valgrind output to log 12 v.set mixed_output : set valgrind output to log, interactive output to gdb 13 v.set merge-recursive-frames <num> : merge recursive calls in max <num> frames 14 v.set vgdb-error <errornr> : debug me at error >= <errornr> 15 memcheck monitor commands: 16 xb <addr> [<len>] 17 prints validity bits for <len> (or 1) bytes at <addr> 18 bit values 0 = valid, 1 = invalid, __ = unaddressable byte 19 Then prints the bytes values below the corresponding validity bits 20 in a layout similar to the gdb command 'x /<len>xb <addr>' 21 Example: xb 0x........ 10 22 get_vbits <addr> [<len>] 23 Similar to xb, but only prints the validity bytes by group of 4. 24 make_memory [noaccess|undefined 25 |defined|Definedifaddressable] <addr> [<len>] 26 mark <len> (or 1) bytes at <addr> with the given accessibility 27 check_memory [addressable|defined] <addr> [<len>] 28 check that <len> (or 1) bytes at <addr> have the given accessibility 29 and outputs a description of <addr> 30 leak_check [full*|summary] 31 [kinds kind1,kind2,...|reachable|possibleleak*|definiteleak] 32 [heuristics heur1,heur2,...] 33 [increased*|changed|any] 34 [unlimited*|limited <max_loss_records_output>] 35 * = defaults 36 where kind is one of: 37 definite indirect possible reachable all none 38 where heur is one of: 39 stdstring length64 newarray multipleinheritance all none* 40 Examples: leak_check 41 leak_check summary any 42 leak_check full kinds indirect,possible 43 leak_check full reachable any limited 100 44 block_list <loss_record_nr>|<loss_record_nr_from>..<loss_record_nr_to> 45 [unlimited*|limited <max_blocks>] 46 [heuristics heur1,heur2,...] 47 after a leak search, shows the list of blocks of <loss_record_nr> 48 (or of the range <loss_record_nr_from>..<loss_record_nr_to>). 49 With heuristics, only shows the blocks found via heur1,heur2,... 50 * = defaults 51 who_points_at <addr> [<len>] 52 shows places pointing inside <len> (default 1) bytes at <addr> 53 (with len 1, only shows "start pointers" pointing exactly to <addr>, 54 with len > 1, will also show "interior pointers") 55 general valgrind monitor commands: 56 help [debug] : monitor command help. With debug: + debugging commands 57 v.wait [<ms>] : sleep <ms> (default 0) then continue 58 v.info all_errors : show all errors found so far 59 v.info last_error : show last error found 60 v.info location <addr> : show information about location <addr> 61 v.info n_errs_found [msg] : show the nr of errors found so far and the given msg 62 v.info open_fds : show open file descriptors (only if --track-fds=yes) 63 v.kill : kill the Valgrind process 64 v.set gdb_output : set valgrind output to gdb 65 v.set log_output : set valgrind output to log 66 v.set mixed_output : set valgrind output to log, interactive output to gdb 67 v.set merge-recursive-frames <num> : merge recursive calls in max <num> frames 68 v.set vgdb-error <errornr> : debug me at error >= <errornr> 69 debugging valgrind internals monitor commands: 70 v.do expensive_sanity_check_general : do an expensive sanity check now 71 v.info gdbserver_status : show gdbserver status 72 v.info memory [aspacemgr] : show valgrind heap memory stats 73 (with aspacemgr arg, also shows valgrind segments on log output) 74 v.info exectxt : show stacktraces and stats of all execontexts 75 v.info scheduler : show valgrind thread state and stacktrace 76 v.info stats : show various valgrind and tool stats 77 v.info unwind <addr> [<len>] : show unwind debug info for <addr> .. <addr+len> 78 v.set debuglog <level> : set valgrind debug log level to <level> 79 v.set hostvisibility [yes*|no] : (en/dis)ables access by gdb/gdbserver to 80 Valgrind internal host status/memory 81 v.translate <addr> [<traceflags>] : debug translation of <addr> with <traceflags> 82 (default traceflags 0b00100000 : show after instrumentation) 83 An additional flag 0b100000000 allows to show gdbserver instrumentation 84 memcheck monitor commands: 85 xb <addr> [<len>] 86 prints validity bits for <len> (or 1) bytes at <addr> 87 bit values 0 = valid, 1 = invalid, __ = unaddressable byte 88 Then prints the bytes values below the corresponding validity bits 89 in a layout similar to the gdb command 'x /<len>xb <addr>' 90 Example: xb 0x........ 10 91 get_vbits <addr> [<len>] 92 Similar to xb, but only prints the validity bytes by group of 4. 93 make_memory [noaccess|undefined 94 |defined|Definedifaddressable] <addr> [<len>] 95 mark <len> (or 1) bytes at <addr> with the given accessibility 96 check_memory [addressable|defined] <addr> [<len>] 97 check that <len> (or 1) bytes at <addr> have the given accessibility 98 and outputs a description of <addr> 99 leak_check [full*|summary] 100 [kinds kind1,kind2,...|reachable|possibleleak*|definiteleak] 101 [heuristics heur1,heur2,...] 102 [increased*|changed|any] 103 [unlimited*|limited <max_loss_records_output>] 104 * = defaults 105 where kind is one of: 106 definite indirect possible reachable all none 107 where heur is one of: 108 stdstring length64 newarray multipleinheritance all none* 109 Examples: leak_check 110 leak_check summary any 111 leak_check full kinds indirect,possible 112 leak_check full reachable any limited 100 113 block_list <loss_record_nr>|<loss_record_nr_from>..<loss_record_nr_to> 114 [unlimited*|limited <max_blocks>] 115 [heuristics heur1,heur2,...] 116 after a leak search, shows the list of blocks of <loss_record_nr> 117 (or of the range <loss_record_nr_from>..<loss_record_nr_to>). 118 With heuristics, only shows the blocks found via heur1,heur2,... 119 * = defaults 120 who_points_at <addr> [<len>] 121 shows places pointing inside <len> (default 1) bytes at <addr> 122 (with len 1, only shows "start pointers" pointing exactly to <addr>, 123 with len > 1, will also show "interior pointers") 124 monitor command request to kill this process 125
