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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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f53053e7c9
When investigating Valgrind out of memory situation, it is useful to be able to output the list of segments of the aspacemgr at any moment. The GDB monitor command "v.info memory" has now an optional argument allowing to output this list of segments git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12544
85 lines
4.4 KiB
Plaintext
85 lines
4.4 KiB
Plaintext
general valgrind monitor commands:
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help [debug] : monitor command help. With debug: + debugging commands
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v.wait [<ms>] : sleep <ms> (default 0) then continue
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v.info all_errors : show all errors found so far
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v.info last_error : show last error found
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v.info n_errs_found : show the nr of errors found so far
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v.kill : kill the Valgrind process
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v.set gdb_output : set valgrind output to gdb
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v.set log_output : set valgrind output to log
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v.set mixed_output : set valgrind output to log, interactive output to gdb
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v.set vgdb-error <errornr> : debug me at error >= <errornr>
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memcheck monitor commands:
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get_vbits <addr> [<len>]
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returns validity bits for <len> (or 1) bytes at <addr>
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bit values 0 = valid, 1 = invalid, __ = unaddressable byte
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Example: get_vbits 0x........ 10
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make_memory [noaccess|undefined
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|defined|Definedifaddressable] <addr> [<len>]
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mark <len> (or 1) bytes at <addr> with the given accessibility
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check_memory [addressable|defined] <addr> [<len>]
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check that <len> (or 1) bytes at <addr> have the given accessibility
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and outputs a description of <addr>
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leak_check [full*|summary] [reachable|possibleleak*|definiteleak]
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[increased*|changed|any]
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[unlimited*|limited <max_loss_records_output>]
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* = defaults
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Examples: leak_check
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leak_check summary any
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leak_check full reachable any limited 100
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block_list <loss_record_nr>
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after a leak search, shows the list of blocks of <loss_record_nr>
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who_points_at <addr> [<len>]
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shows places pointing inside <len> (default 1) bytes at <addr>
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(with len 1, only shows "start pointers" pointing exactly to <addr>,
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with len > 1, will also show "interior pointers")
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general valgrind monitor commands:
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help [debug] : monitor command help. With debug: + debugging commands
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v.wait [<ms>] : sleep <ms> (default 0) then continue
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v.info all_errors : show all errors found so far
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v.info last_error : show last error found
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v.info n_errs_found : show the nr of errors found so far
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v.kill : kill the Valgrind process
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v.set gdb_output : set valgrind output to gdb
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v.set log_output : set valgrind output to log
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v.set mixed_output : set valgrind output to log, interactive output to gdb
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v.set vgdb-error <errornr> : debug me at error >= <errornr>
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debugging valgrind internals monitor commands:
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v.info gdbserver_status : show gdbserver status
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v.info memory [aspacemgr] : show valgrind heap memory stats
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(with aspacemgr arg, also shows valgrind segments on log ouput)
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v.info scheduler : show valgrind thread state and stacktrace
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v.set debuglog <level> : set valgrind debug log level to <level>
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v.translate <addr> [<traceflags>] : debug translation of <addr> with <traceflags>
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(default traceflags 0b00100000 : show after instrumentation)
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An additional flag 0b100000000 allows to show gdbserver instrumentation
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memcheck monitor commands:
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get_vbits <addr> [<len>]
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returns validity bits for <len> (or 1) bytes at <addr>
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bit values 0 = valid, 1 = invalid, __ = unaddressable byte
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Example: get_vbits 0x........ 10
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make_memory [noaccess|undefined
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|defined|Definedifaddressable] <addr> [<len>]
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mark <len> (or 1) bytes at <addr> with the given accessibility
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check_memory [addressable|defined] <addr> [<len>]
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check that <len> (or 1) bytes at <addr> have the given accessibility
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and outputs a description of <addr>
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leak_check [full*|summary] [reachable|possibleleak*|definiteleak]
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[increased*|changed|any]
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[unlimited*|limited <max_loss_records_output>]
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* = defaults
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Examples: leak_check
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leak_check summary any
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leak_check full reachable any limited 100
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block_list <loss_record_nr>
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after a leak search, shows the list of blocks of <loss_record_nr>
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who_points_at <addr> [<len>]
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shows places pointing inside <len> (default 1) bytes at <addr>
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(with len 1, only shows "start pointers" pointing exactly to <addr>,
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with len > 1, will also show "interior pointers")
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monitor command request to kill this process
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