gdb gnu debugger

Compile program with -g to create symbol table for gdb.

gdb [--silent|-q|--quiet] --args program --args … [core |running Process ID]

Did you want to try lldb

GDB is part of the GNU framework, and was created to work alongside of g++ , which is the GNU C++ compiler.
LLDB is part of the LLVM framework, and was created to work alongside of clang++ , which is the LLVM C++ compiler.

`running`		`breakpoints`
`tracepoints`	Tracing without stopping the program
`data`	Examining	files
`stack`		`status`
`aliases`	of other commands	`support`	Support facilities
`user-defined`	User-defined commands
`help command`	for full documentation.	`help class`		`help all`
`apropos word`	to search for commands related to "word".	`internals`	Maintenance commands
`obscure`	Obscure features

Unambiguous command name abbreviations are allowed i.e. i b for info breakpoints,

[enter] repeats the last command.

Examine memory
`fmt [count] [format] [size]` . `count` for repeat Default: 1 `format`: `x` hex, `d`ecimal, `u`nsigned decimal, `t`inary, `f`loat, `a`ddress, `i`nstruction, `c`har and `s`tring.octal. Default: last used `size`: `b`yte, `h`alfword, `w`ord, `g`iant, 8 bytes. Default: last used `address`: expression . Default: previously displayed `address` is following last thing examined or printed
aliases
`list func`	specified function or line
`run`	Start debugged program
`ni`	NextInstruction : Step one instruction
`si`	one instruction exactly
`rc`	ReverseContinue: run it in reverse
`rni`	ReverseNextInstruction: backward one instruction
`rsi`	ReverseSingleInstruction:backward exactly one instruction
stepping
`tp line\|func`	TracePoint at line or function
`where`	output backtrace stack frames
`ws`	single-stepping behavior at a tracepoint
`tty`	terminal for future runs

breakpoints TOC

`clear`	breakpoint at specified line or function
`awatch`	for an expression Set a watchpoint for an expression. `awatch [-l\|-location] EXPRESSION` stops execution whenever the value of an expression is accessed If -l or -location is given, this evaluates EXPRESSION and watches the memory to which it refers.
`break`	at a line or function
`commands`	be executed when a breakpoint is hit
`break-range`	for an address range
breakpoints
`condition`	Specify breakpoint number N to break only if COND is true
`delete breakpoints`	some breakpoints or auto-display expressions
`enable breakpoints`
`enable breakpoints delete`	Enable breakpoints and delete when hit
`enable breakpoints once`	Enable breakpoints for one hit
`enable`	Enable some breakpoints
`enable delete`	breakpoints and delete when hit
`rbreak`	breakpoint for all functions matching REGEXP
`save breakpoints`	Save current breakpoint definitions as a script
`disable`	some breakpoints
`disable breakpoints`	some breakpoints
`save`	Save breakpoint definitions as a script
`hbreak`	hardware assisted breakpoint
`ignore`	ignore-count of breakpoint number N to COUNT
`enable once`	breakpoints for one hit
`tbreak`	a temporary breakpoint
`thbreak`	a temporary hardware assisted breakpoint
`breakpoint`	Breakpoint specific settings
`breakpoint always-inserted`	mode for inserting breakpoints
`breakpoint pending`	debugger's behavior regarding pending breakpoints
`may-insert-breakpoints`	permission to insert breakpoints in the target
`breakpoint auto-hw`	automatic usage of hardware breakpoints
`hardware-breakpoint-limit`	the maximum number of target hardware breakpoints
`hardware-breakpoint-packet`	Z1' (hardware-breakpoint) packet
`software-breakpoint-packet`	Z0' (software-breakpoint) packet
`m info breakpoints`	Status of all breakpoints
`sho breakpoint always-inserted`	mode for inserting breakpoints
`sho breakpoint auto-hw`	automatic usage of hardware breakpoints
`sho breakpoint pending`	debugger's behavior regarding pending breakpoints
`show remote hardware-breakpoint-limit`	the maximum number of target hardware breakpoints
`show remote hardware-breakpoint-packet`	`Z1' (hardware-breakpoint) packet
`show remote software-breakpoint-packet`	`Z0' (software-breakpoint) packet
`show remotebreak`	whether to send break if interrupted
`break`	whether to send break if interrupted
`sho breakpoint`	Breakpoint specific settings
`delete checkpoint`
`delete display`	Cancel some expressions to be displayed when program stops
`delete bookmark`
`disable pretty-printer`
`disable tracepoints`
`enable display`	Enable some expressions to be displayed when program stops
`disable display`	expressions to be displayed when program stops
`enable tracepoints`	Enable specified tracepoints
`delete tracepoints`
`delete tvariable`	one or more trace state variables
`ftrace`	fast tracepoint at specified line or function
`rwatch`	read watchpoint for an expression
`save tracepoints`	Save current tracepoint definitions as a script
`skip`	Ignore function while stepping
`skip function`	Ignore a function while stepping
`skip delete`	Delete skip entries
`skip disable`	Disable skip entries
`skip enable`	Enable skip entries
`skip file`	Ignore a file while stepping
`strace`	a static tracepoint at specified line
`enable pretty-printer`
`save gdb-index`	Save a gdb-index file
`disable mem`
`delete mem`	memory region
`enable mem`	Enable memory region
`catch`	catch events
`[t]catch`	[temporary]
`[t]catch catch`	exception
`[t]catch exec`	calls to exec
`[t]catch fork`	calls to fork
`[t]catch syscall`	by their names and/or numbers
`[t]catch throw`	Catch an exception
`[t]catch vfork`	Catch calls to vfork
`[t]catch assert`	failed Ada assertions
`[t]catch exception`	Ada exceptions
`trace`	a tracepoint at specified line or function
`watch`	a watchpoint for an expression

data TOC

`call`	a function
`disassemble`	a specified section of memory
`display`	value of expression `EXP` each time the program stops
`append`	target code/data to a local file
`append binary`	target code/data to a raw binary file
`append binary memory`	to a rbf
`append binary value`	of an expression to a rbf
`append value`	of an expression to a rbf
`append memory`	to a rbf
dump
`dump`	code/data to a local file
`dump binary`	to a rbf
`dump binary memory`	to a rbf
`dump binary value`	value of an expression to a rbf
`dump ihex`	target code/data to an intel hex file
`dump ihex memory`
`dump ihex value expn`	Write the value of an expression to an ihex file
`dump memory`	to a rbf
`dump srec fid`	target code/data to an srec file
`dump srec memory`	to an srec file
`dump srec value`	the value of an expression to an srec file
`dump tekhex`	to a tekhex file
`dump tekhex memory`
`dump tekhex value`	value of an expression
`dump value`	value of an expression to a rbf

`find`	Search memory for a sequence of bytes
`inspect`
`print`	Print value of expression EXP
`output`	Like "print" but don't put in value history and don't print newline
`print-object`	Ask an Objective-C object to print itself
`printf`	Printf "printf format string"
`ptype`	Print definition of type TYPE
`init-if-undefined`	Initialize a convenience variable if necessary
`mem`	Define attributes for memory region or reset memory region handling to mem auto LOW HIGH [MODE WIDTH CACHE] MODE may be rw (read/write), ro (read-only) or wo (write-only), WIDTH 8, 16, 32, or 64 CACHE cache or nocache
`set`	Evaluate expression EXP and assign result to variable VAR
`ada`	Prefix command for changing Ada-specfic settings
`ada trust-PAD-over-XVS`	Enable or disable an optimization trusting PAD types over XVS types
`annotate`	annotation_level
`architecture`	architecture of target
`args`	argument list to give program being debugged when it is started
`arm`	Various ARM-specific commands
`arm abi`	the ABI
`arm apcs32`	usage of ARM 32-bit mode
`arm disassembler`	the disassembly style
`arm fallback-mode`	the mode assumed when symbols are unavailable
`arm force-mode`	the mode assumed even when symbols are available
`arm fpu`	the floating point type
`auto-load-scripts`	the debugger's behaviour regarding auto-loaded scripts
`auto-solib-add`	autoloading of shared library symbols
`backtrace`	backtrace specific variables
`backtrace limit`	an upper bound on the number of backtrace levels
`backtrace past-entry`	whether backtraces should continue past the entry point of a program
`backtrace past-main`	whether backtraces should continue past "main"
`basenames-may-differ`	whether a source file may have multiple base names
`can-use-hw-watchpoints`	debugger's willingness to use watchpoint hardware
`case-sensitive`	case sensitivity in name search
`charset`	the host and target character sets
`check`	the status of the type/range checker
`check range`	range checking
`check type`	type checking
`circular-trace-buffer`	target's use of circular trace buffer
`coerce-float-to-double`	coercion of floats to doubles when calling functions
`complaints`	max number of complaints about incorrect symbols
`confirm`	whether to confirm potentially dangerous operations
`cp-abi`	the ABI used for inspecting C++ objects
`data-directory`	GDB's data directory
`dcache`	Use this command to set number of lines in dcache and line-size
`dcache line-size`	dcache line size in bytes (must be power of 2)
`dcache size`	number of dcache lines
`debug`	Generic command for setting gdb debugging flags
`debug arch`	architecture debugging
`debug arm`	ARM debugging
`debug check-physname`	cross-checking of "physname" code against demangler
`debug displaced`	displaced stepping debugging
`debug dwarf2-die`	debugging of the dwarf2 DIE reader
`debug entry-values`	entry values and tail call frames debugging
`debug expression`	expression debugging
`debug frame`	frame debugging
`debug infrun`	inferior debugging
`debug jit`	JIT debugging
`debug libthread-db`	libthread-db debugging
`debug lin-lwp`	debugging of GNU/Linux lwp module
`debug observer`	observer debugging
`debug overload`	debugging of C++ overloading
`debug parser`	parser debugging
`debug record`	debugging of record/replay feature
`debug remote`	debugging of remote protocol
`debug serial`	serial debugging
`debug target`	target debugging
`debug timestamp`	timestamping of debugging messages
`debug xml`	XML parser debugging
`debug-file-directory`	the directories where separate debug symbols are searched for
`debugvarobj`	varobj debugging
`default-collect`	the list of expressions to collect by default
`demangle-style`	the current C++ demangling style
`detach-on-fork`	whether gdb will detach the child of a fork
`directories`	the search path for finding source files
`disable-randomization`	disabling of debuggee's virtual address space randomization
`disassemble-next-line`	whether to disassemble next source line or insn when execution stops
`disconnected-tracing`	whether tracing continues after GDB disconnects
`displaced-stepping`	debugger's willingness to use displaced stepping
`editing`	editing of command lines as they are typed
`endian`	endianness of target
`environment`	environment variable value to give the program
`exec-direction`	direction of execution
`exec-done-display`	notification of completion for asynchronous execution commands
`exec-wrapper`	a wrapper for running programs
`extended-prompt`	the extended prompt
`extension-language`	mapping between filename extension and source language
`follow-exec-mode`	debugger response to a program call of exec
`follow-fork-mode`	debugger response to a program call of fork or vfork
`gnutarget`	the current BFD target
`height`	number of lines gdb thinks are in a page
`history`	Generic command for setting command history parameters
`history expansion`	history expansion on command input
`history filename`	the filename in which to record the command history
`history save`	saving of the history record on exit
`history size`	the size of the command history
`host-charset`	the host character set
`inferior-tty`	terminal for future runs of program being debugged
`input-radix`	default input radix for entering numbers
`interactive-mode`	whether GDB's standard input is a terminal
`language`	the current source language
`libthread-db-search-path`	search path for libthread_db
`listsize`	number of source lines gdb will list by default
`logging`	logging options
`logging file`	the current logfile
`logging off`	Disable logging
`logging on`	Enable logging
`logging overwrite`	whether logging overwrites or appends to the log file
`logging redirect`	the logging output mode
`max-user-call-depth`	the max call depth for user-defined commands
`may-insert-fast-tracepoints`	permission to insert fast tracepoints in the target
`may-insert-tracepoints`	permission to insert tracepoints in the target
`may-interrupt`	permission to interrupt or signal the target
`may-write-memory`	permission to write into target memory
`may-write-registers`	permission to write into registers
`mem`	Memory regions settings
`mem inaccessible-by-default`	handling of unknown memory regions
`multiple-symbols`	the debugger behavior when more than one symbol are possible matches
`non-stop`	whether gdb controls the inferior in non-stop mode
`observer`	whether gdb controls the inferior in observer mode
`opaque-type-resolution`	resolution of opaque struct/class/union types (if set before loading symbols)
`osabi`	OS ABI of target
`output-radix`	default output radix for printing of values
`overload-resolution`	overload resolution in evaluating C++ functions
`pagination`	state of pagination
`print`	Generic command for setting how things print
`print address`	printing of addresses
`print array`	prettyprinting of arrays
`print array-indexes`	printing of array indexes
`print asm-demangle`	demangling of C++/ObjC names in disassembly listings
`print demangle`	demangling of encoded C++/ObjC names when displaying symbols
`print elements`	limit on string chars or array elements to print
`print entry-values`	printing of function arguments at function entry
`print frame-arguments`	printing of non-scalar frame arguments
`print inferior-events`	printing of inferior events (e
`print max-symbolic-offset`	the largest offset that will be printed in form
`print null-stop`	printing of char arrays to stop at first null char
`print object`	printing of object's derived type based on vtable info
`print pascal_static-members`	printing of pascal static members
`print pretty`	prettyprinting of structures
`print repeats`	threshold for repeated print elements
`print sevenbit-strings`	printing of 8-bit characters in strings as \nnn
`print static-members`	printing of C++ static members
`print symbol-filename`	printing of source filename and line number with
`print thread-events`	printing of thread events (such as thread start and exit)
`print union`	printing of unions interior to structures
`print vtbl`	printing of C++ virtual function tables
`prompt`
`python`	Prefix for python preference settings
`python print-stack`	mode for Python stack dump on error
`radix`	default input and output number radices
`record`	record options
`record insn-number-max`	record/replay buffer limit
`record memory-query`	whether query if PREC cannot record memory change of next instruction
`record stop-at-limit`	whether record/replay stops when record/replay buffer becomes full
`remote`	Remote protocol specific variables

`P-packet`	P' (set-register) packet
`TracepointSource-packet`	TracepointSource' (TracepointSource) packet
`X-packet`	X' (binary-download) packet
`Z-packet`	Z' packets
`access-watchpoint-packet`	Z4' (access-watchpoint) packet
`allow-packet`	Allow' (allow) packet
`attach-packet`	vAttach' (attach) packet
`binary-download-packet`	X' (binary-download) packet
`conditional-tracepoints-packet`
`disable-randomization-packet`
`exec-file`	remote pathname for "run"
`fast-tracepoints-packet`	FastTracepoints' (fast-tracepoints) packet
`fetch-register-packet`	p' (fetch-register) packet
`get-thread-information-block-address-packet`	qGetTIBAddr' (get-thread-information-block-address) packet
`get-thread-local-storage-address-packet`	qGetTLSAddr' (get-thread-local-storage-address) packet
`hardware-watchpoint-length-limit`	the maximum length (in bytes) of a target hardware watchpoint
`hardware-watchpoint-limit`	the maximum number of target hardware watchpoints
`hostio-close-packet`	vFile:close' (hostio-close) packet
`hostio-open-packet`	vFile:open' (hostio-open) packet
`hostio-pread-packet`	vFile:pread' (hostio-pread) packet
`hostio-pwrite-packet`	vFile:pwrite' (hostio-pwrite) packet
`hostio-unlink-packet`	vFile:unlink' (hostio-unlink) packet
`install-in-trace-packet`	InstallInTrace' (install-in-trace) packet
`interrupt-on-connect`	whether interrupt-sequence is sent to remote target when gdb connects to
`interrupt-sequence`	interrupt sequence to remote target
`kill-packet`	vKill' (kill) packet
`library-info-packet`	qXfer:libraries:read' (library-info) packet
`library-info-svr4-packet`	qXfer:libraries-svr4:read' (library-info-svr4) packet
`memory-map-packet`	qXfer:memory-map:read' (memory-map) packet
`memory-read-packet-size`	the maximum number of bytes per memory-read packet
`memory-write-packet-size`	the maximum number of bytes per memory-write packet
`noack-packet`	QStartNoAckMode' (noack) packet
`osdata-packet`	qXfer:osdata:read' (osdata) packet
`p-packet`	p' (fetch-register) packet
`pass-signals-packet`	QPassSignals' (pass-signals) packet
`query-attached-packet`	qAttached' (query-attached) packet
`read-aux-vector-packet`	qXfer:auxv:read' (read-aux-vector) packet
`read-fdpic-loadmap-packet`	qXfer:fdpic:read' (read-fdpic-loadmap) packet
`read-sdata-object-packet`	qXfer:statictrace:read' (read-sdata-object) packet
`read-siginfo-object-packet`	qXfer:siginfo:read' (read-siginfo-object) packet
`read-spu-object-packet`	qXfer:spu:read' (read-spu-object) packet
`read-watchpoint-packet`	Z3' (read-watchpoint) packet
`reverse-continue-packet`	bc' (reverse-continue) packet
`reverse-step-packet`	bs' (reverse-step) packet
`run-packet`	vRun' (run) packet
`search-memory-packet`	qSearch:memory' (search-memory) packet
`set-register-packet`	P' (set-register) packet
`static-tracepoints-packet`	StaticTracepoints' (static-tracepoints) packet
`supported-packets-packet`	qSupported' (supported-packets) packet
`symbol-lookup-packet`	qSymbol' (symbol-lookup) packet
`system-call-allowed`	if the host system(3) call is allowed for the target
`target-features-packet`	qXfer:features:read' (target-features) packet
`threads-packet`	qXfer:threads:read' (threads) packet
`traceframe-info-packet`	qXfer:trace-frame-info:read' (traceframe-info) packet
`verbose-resume-packet`	vCont' (verbose-resume) packet
`write-siginfo-object-packet`	qXfer:siginfo:write' (write-siginfo-object) packet
`write-spu-object-packet`	qXfer:spu:write' (write-spu-object) packet
`write-watchpoint-packet`	Z2' (write-watchpoint) packet

`addresssize`	the maximum size of the address (in bits) in a memory packet
`baud`	baud rate for remote serial I/O
`cache`	cache use for remote targets
`flow`	use of hardware flow control for remote serial I/O
`logbase`	numerical base for remote session logging
`logfile`	filename for remote session recording
`timeout`	timeout limit to wait for target to respond
`writesize`	the maximum number of bytes per memory write packet (deprecated)
`set`
`schedule-multiple`	mode for resuming threads of all processes
`scheduler-locking`	mode for locking scheduler during execution
`script-extension`	mode for script filename extension recognition
`serial`	default serial/parallel port configuration
`solib-absolute-prefix`	an alternate system root
`solib-search-path`	the search path for loading non-absolute shared library symbol files
`stack-cache`	cache use for stack access
`step-mode`	mode of the step operation
`stop-on-solib-events`	stopping for shared library events
`substitute-path`	Usage: set substitute-path FROM TO
`symbol-reloading`	dynamic symbol table reloading multiple times in one run
`sysroot`	an alternate system root
`target-async`	whether gdb controls the inferior in asynchronous mode
`target-charset`	the target character set
`target-file-system-kind`	assumed file system kind for target reported file names
`target-wide-charset`	the target wide character set
`tcp`	TCP protocol specific variables
`tcp auto-retry`	auto-retry on socket connect
`tcp connect-timeout`	timeout limit for socket connection
`tdesc`	target description specific variables
`tdesc filename`	the file to read for an XML target description
`trace-commands`	tracing of GDB CLI commands
`trace-notes`	notes string to use for current and future trace runs
`trace-stop-notes`	notes string to use for future tstop commands
`trace-user`	the user name to use for current and future trace runs
`trust-readonly-sections`	mode for reading from readonly sections
`tui`	TUI configuration variables
`tui active-border-mode`	the attribute mode to use for the active TUI window border
`tui border-kind`	the kind of border for TUI windows
`tui border-mode`	the attribute mode to use for the TUI window borders
`unwind-on-terminating-exception`	unwinding of stack if std::terminate is called while in call dummy
`unwindonsignal`	unwinding of stack if a signal is received while in a call dummy
`variable`	Evaluate expression EXP and assign result to variable VAR
`verbose`	verbosity
`watchdog`	watchdog timer
`width`	characters per line (default window size)
`write`	writing into executable and core files
`undisplay`	Cancel some expressions to be displayed when program stops
`whatis`	Print data type of expression EXP
`x`	Examine memory: x/FMT ADDRESS

files TOC
`restore`	Restore the contents of FILE to target memory
`add-symbol-file`	Load symbols from FILE
`add-symbol-file-from-memory`	Load the symbols out of memory from a dynamically loaded object file
`cd`	working directory to DIR for debugger and program being debugged
`core-file`	Use FILE as core dump for examining memory and registers
`directory`	Add directory DIR to beginning of search path for source files
`edit`	Edit specified file or function
`exec-file`	Use FILE as program for getting contents of pure memory
`file`	Use FILE as program to be debugged
`forward-search`	Search for regular expression (see regex(3)) from last line listed
`generate-core-file`	Save a core file with the current state of the debugged process
`load`	Dynamically load FILE into the running program
`nosharedlibrary`	Unload all shared object library symbols
`path`	Add directory DIR(s) to beginning of search path for object files
`pwd`	Print working directory
`remote`	Manipulate files on the remote system
`remote delete`	Delete a remote file
`remote get`	Copy a remote file to the local system
`remote put`	Copy a local file to the remote system
`reverse-search`	Search backward for regular expression (see regex(3)) from last line listed
`search`	Search for regular expression (see regex(3)) from last line listed
`section`	Change the base address of section SECTION of the exec file to ADDR
`sharedlibrary`	Load shared object library symbols for files matching REGEXP
`symbol-file`	Load symbol table from executable file FILE

internals TOC

`flushregs`	Force gdb to flush its register cache (maintainer command)
`maintenance`	Commands for use by GDB maintainers
`m agent`	Translate an expression into remote agent bytecode for tracing
`m agent-eval`	Translate an expression into remote agent bytecode for evaluation
`m check-symtabs`	Check consistency of psymtabs and symtabs
`m cplus`	C++ maintenance commands
`m cplus first_component`	Print the first class/namespace component of NAME
`m cplus namespace`	Deprecated placeholder for removed functionality
`m demangle`	Demangle a C++/ObjC mangled name
`m deprecate`	Deprecate a command
`m dump-me`	Get fatal error; make debugger dump its core
`m info`	Commands for showing internal info about the program being debugged
`m info program-spaces`	Info about currently known program spaces
`m info psymtabs`	List the partial symbol tables for all object files
`m info sections`	List the BFD sections of the exec and core files
`m info symtabs`	List the full symbol tables for all object files
`m internal-error`	Give GDB an internal error
`m internal-warning`	Give GDB an internal warning
`m packet`	Send an arbitrary packet to a remote target
`m print`	Maintenance command for printing GDB internal state
`m print architecture`	Print the internal architecture configuration
`m print c-tdesc`	Print the current target description as a C source file
`m print cooked-registers`	Print the internal register configuration including cooked values
`m print dummy-frames`	Print the contents of the internal dummy-frame stack
`m print msymbols`	Print dump of current minimal symbol definitions
`m print objfiles`	Print dump of current object file definitions
`m print psymbols`	Print dump of current partial symbol definitions
`m print raw-registers`	Print the internal register configuration including raw values
`m print reggroups`	Print the internal register group names
`m print register-groups`	Print the internal register configuration including each register's group
`m print registers`	Print the internal register configuration
`m print remote-registers`	Print the internal register configuration including each register's
`m print statistics`	Print statistics about internal gdb state
`m print symbols`	Print dump of current symbol definitions
`m print target-stack`	Print the name of each layer of the internal target stack
`m print type`	Print a type chain for a given symbol
`m set`	GDB internal variables used by the GDB maintainer
`m set dwarf2`	DWARF 2 specific variables
`m set dwarf2 always-disassemble`	whether `info address' always disassembles DWARF expressions
`m set dwarf2 max-cache-age`	the upper bound on the age of cached dwarf2 compilation units
`m set internal-error`	Configure what GDB does when internal-error is detected
`m set internal-error corefile`	whether GDB should create a core file of GDB when internal-error is detected
`m set internal-error quit`	whether GDB should quit when an internal-error is detected
`m set internal-warning`	Configure what GDB does when internal-warning is detected
`m set internal-warning corefile`	whether GDB should create a core file of GDB when internal-warning is detected
`m set internal-warning quit`	whether GDB should quit when an internal-warning is detected
`m set profile`	internal profiling
`m set python`	Prefix command for python maintenance settings
`m set python print-stack`	Enable or disable printing of Python stack dump on error
`m show`	GDB internal variables used by the GDB maintainer
`m show dwarf2`	DWARF 2 specific variables
`m show dwarf2 always-disassemble`	whether `info address' always disassembles DWARF expressions
`m show dwarf2 max-cache-age`	the upper bound on the age of cached dwarf2 compilation units
`m show internal-error`	what GDB does when internal-error is detected
`m show internal-error corefile`	create a core file of GDB when internal-error is detected
`m show internal-error quit`	quit when an internal-error is detected
`m show internal-warning`	what GDB does when internal-warning is detected
`m show internal-warning corefile`	create a core file of GDB when internal-warning is detected
`m show internal-warning quit`	quit when an internal-warning is detected
`m show profile`	internal profiling
`m show python`	Prefix command for python maintenance settings
`m show python print-stack`	whether Python stack will be printed on error
`m space`	the display of space usage
`m time`	the display of time usage
`m translate-address`	Translate a section name and address to a symbol
`m undeprecate`	Undeprecate a command

obscure TOC

`checkpoint`	Fork a duplicate process (experimental)
`compare-sections`	Compare section data on target to the exec file
`complete`	List the completions for the rest of the line as a command
`monitor`	Send a command to the remote monitor (remote targets only)
`python`	Evaluate a Python command
`record`	Abbreviated form of "target record" command
`record delete`	Delete the rest of execution log and start recording it anew
`record goto`	Restore the program to its state at instruction number N
`record restore`	Restore the execution log from a file
`record save`	Save the execution log to a file
`record stop`	Stop the record/replay target
`restart`	Restart : restore program context from a checkpoint
`stop`	There is no `stop' command

running TOC

`advance`	Continue the program up to the given location (same form as args for break command)
`attach`	Attach to a process or file outside of GDB
`detach`
`detach checkpoint`
`detach inferiors`
`disconnect`
`finish`	Execute until selected stack frame returns
`continue`
`handle`	Specify how to handle a signal
`inferior`	Use this command to switch between inferiors
`interrupt`	Interrupt the execution of the debugged program
`jump`	Continue program being debugged at specified line or address
`kill`
`kill inferiors`	ID (or list of IDs)
`next n [N]`	does not enter the subroutine, steps over
`nexti`	Step until a different source line N times
`step s`	until a different source line
`stepi`	one instruction exactly
`reverse-continue`
`reverse-finish`	before selected stack frame is called
`reverse-next`
`reverse-nexti`
`reverse-step`
`reverse-stepi`
`signal`	Continue program giving it signal specified by the argument
`start`	Run the debugged program until the beginning of the main procedure
`target`	Connect to a target machine or process
`target child`	Unix child process (started by the "run" command)
`target core`	Use a core file as a target
`target exec`	Use an executable file as a target
`target extended-remote`	Use a remote computer via a serial line
`target multi-thread`	Threads and pthreads support
`target record`	Log program while executing and replay execution from log
`target record-core`	Log program while executing and replay execution from log
`target remote`	Use a remote computer via a serial line
`target tfile`	Use a trace file as a target
`task`	Use this command to switch between Ada tasks
`thread`	Use this command to switch between threads
`thread apply`	Apply a command to a list of threads
`thread apply all`	Apply a command to all threads
`thread find`	Find threads that match a regular expression
`thread name`	the current thread's name
`until`	Execute until the program reaches a source line greater than the current

stack TOC

`bt`	Print backtrace of all stack frames
`sho backtrace`	backtrace specific variables
`sho backtrace limit`	the upper bound on the number of backtrace levels
`sho backtrace past-entry`	whether backtraces should continue past the entry point of a program
`sho backtrace past-main`	whether backtraces should continue past "main"
`down`	Select and print stack frame called by this one
`frame`	Select and print a stack frame
`return`	Make selected stack frame return to its caller
`select-frame`	Select a stack frame without printing anything
`up`	Select and print stack frame that called this one

status TOC

`info`
`i address`	Describe where symbol SYM is stored
`i all-registers`
`i args`	Argument variables of current stack frame
`i auto-load-scripts`	Print the list of automatically loaded scripts
`i auxv`	Display the inferior's auxiliary vector
`i bookmarks`
`i breakpoints`
`i catch`	Exceptions that can be caught in the current stack frame
`i checkpoints`	IDs of currently known checkpoints
`i classes`	All Objective-C classes
`i common`	Fortran COMMON
`i dcache`	performance
`i display`	Expressions to display when program stops
`i extensions`	All filename extensions associated with a source language
`i files`	targets and files ( libraries.)
`i float`	ngpoint registars
`i frame`	example: Stack level 0, frame at 0xbefa040c: pc = 0x1951e in runtime.memhash8; saved pc = 0x658a2 called by frame at 0xbefa040c Arglist at 0xbefa040c, args: Locals at 0xbefa040c, Previous frame's sp is 0xbefa040c
`i functions`	All function names
`i handle`	debugger does when program gets various signals Signal Stop Print HUP Yes Yes Hangup INT Yes Yes No Interrupt (not passed to pgm) QUIT Yes Yes Quit ILL Yes Yes Illegal instruction TRAP Yes Yes No Trace/breakpoint trap (not passed to pgm) ABRT Yes Yes Aborted EMT Yes Yes Emulation trap FPE Yes Yes Arithmetic exception KILL Yes Yes Killed BUS Yes Yes Bus error SEGV Yes Yes Segmentation fault SYS Yes Yes Bad system call PIPE Yes Yes Broken pipe ALRM No No Alarm clock TERM Yes Yes Terminated URG No No Urgent I/O condition STOP Yes Yes Stopped (signal) TSTP Yes Yes Stopped (user) CONT Yes Yes Continued CHLD No No Child status changed TTIN Yes Yes Stopped (tty input) TTOU Yes Yes Stopped (tty output) IO No No I/O possible XCPU Yes Yes CPU time limit exceeded XFSZ Yes Yes File size limit exceeded VTALRM No No Virtual timer expired PROF No No Profiling timer expired WINCH No No Window size changed LOST Yes Yes Resource lost USR1 Yes Yes User defined signal 1 USR2 Yes Yes User defined signal 2 PWR Yes Yes Power fail/restart POLL No No Pollable event occurred WIND Yes Yes SIGWIND PHONE Yes Yes SIGPHONE WAITING No No Process's LWPs are blocked LWP No No Signal LWP DANGER Yes Yes Swap space dangerously low GRANT Yes Yes Monitor mode granted RETRACT Yes Yes Need to relinquish monitor mode MSG Yes Yes Monitor mode data available SOUND Yes Yes Sound completed SAK Yes Yes Secure attention PRIO No No SIGPRIO CANCEL No No LWP internal signal 32 No No Real-time event 32 33 No No Real-time event 32 34 Yes Yes Real-time event 32 … 127 Yes Yes Real-time event 127 INFO Yes Yes Information request LIBRT No No librt internal signal EXC_BAD_ACCESS Yes Yes Could not access memory EXC_BAD_INSTRUCTION Yes Yes Yes Illegal instruction/operand EXC_ARITHMETIC Yes Yes Arithmetic exception EXC_EMULATION Yes Yes Emulation instruction EXC_SOFTWARE Yes Yes Software generated exception EXC_BREAKPOINT Yes Yes Breakpoint
`i inferiors`	IDs of specified inferiors (all inferiors if no argument)
`i line`	Core addresses of the code for a source line
`i locals`	Local variables of current stack frame
`i macro`	the definition of MACRO
`i macros`	the definitions of all macros at LINESPEC
`i mem`	Memory region attributes
`i os`	cpus , files , modules loaded kernel modules , msg queues , processes, procgroups, semaphores , shm shared-memory regions , sockets , threads `i os cpus` processor model name BogoMIPS 0 ARMv6-compatible processor rev 7 (v6l) 997.08 Features half thumb fastmult vfp edsp java tls CPU implementer architecture variant part revision Hardware Revision Serial 0x41 7 0x0 0xb76 7 BCM2835 9000c1 0000000098490ec6
`i pretty-printer`	GDB command to list all registered pretty-printers
`i proc`	/proc process information about any running process
`i proc cmdline`	command line arguments
`i proc all`	/proc info
`i proc cwd`	current working directory
`i proc exe`	absolute filename for executable
`i proc mappings`	mapped memory regions
`i proc stat`	/proc/PID/stat
`i proc status`	/proc/PID/status
`i program`
`i record`
`i registers`
`inf scope`	variables local to a scope
`i selectors`	All Objective-C selectors
`i set`	all GDB settings
`i sharedlibrary`	Status of loaded shared object libraries
`i signals`	What debugger does when program gets various signals
`i skip`	Display the status of skips
`i source`	Information about the current source file
`i sources`	Source files in the program
`i stack`	Backtrace of the stack
`i static-tracepoint-markers`	List target static tracepoints markers
`i symbol`	Describe what symbol is at location ADDR
`i target`	Names of targets and files being debugged
`i tasks`	Provide information about all known Ada tasks
`i terminal`	Print inferior's saved terminal status
`i threads`	Display currently known threads
`i tracepoints`	Status of specified tracepoints (all tracepoints if no argument)
`i tvariables`	Status of trace state variables and their values
`i types`	All type names
`i variables`	All global and static variable names
`i vector`	Print the status of the vector unit
`i watchpoints`	Status of specified watchpoints (all watchpoints if no argument)
`i win`	List of all displayed windows
`macro define`
`macro expand expression`
`macro expand-once expr`
`macro undef name`
`sho args`	argument list to give program being debugged when it is started
`sho arm abi`	the ABI
`sho arm apcs32`	usage of ARM 32-bit mode
`sho arm disassembler`
`sho arm fallback-mode`	when symbols are unavailable
`sho arm force-mode`	even when symbols are available
`sho arm fpu`	the floating point type

`sho auto-load-scripts`	the debugger's behaviour regarding auto-loaded scripts
`sho auto-solib-add`	autoloading of shared library symbols
`sho basenames-may-differ`	If a source may have multiple base names
`sho can-use-hw-watchpoints`	willingness to use watchpoint hardware
`sho case-sensitive`	name search
`sho charset`	the host and target character sets
`sho check`	the status of the type/range checker
`sho check range`	range checking
`sho check type`	type checking
`sho circular-trace-buffer`	target's use of circular trace buffer
`sho coerce-float-to-double`	coercion of floats to doubles when calling functions
`sho commands`	history
`sho complaints`	max number of complaints about incorrect symbols
`sho confirm`	confirm potentially dangerous operations
`sho convenience`	Debugger convenience ("$foo") variables
`sho cp-abi`	the ABI used for inspecting C++ objects
`sho data-directory`	GDB's data directory
`sho dcache`	dcachesettings
`sho dcache line-size`	dcache line size
`sho dcache size`	number of dcache lines
`sho debug`
`sho debug arch`	architecture
`sho debug arm`	ARM
`sho debug check-physname`	cross-checking of "physname" code against demangler
`sho debug displaced`	displaced stepping
`sho debug dwarf2-die`	dwarf2 DIE reader
`sho debug entry-values`	entry values and tail call frames
`sho debug expression`
`sho debug frame`
`sho debug infrun`	inferior
`sho debug jit`	JIT
`sho debug libthread-db`
`sho debug lin-lwp`	of GNU/Linux lwp module
`sho debug observer`
`sho debug overload`
`sho debug parser`
`sho debug record`	record/replay feature
`sho debug remote`	protocol
`sho debug serial`
`sho debug target`
`sho debug timestamp`	of messages
`sho debug xml`	XML parser
`sho debugvarobj`	varobj
`sho debug-file-directory`	symbols are searched for
`sho default-collect`	the list of expressions to collect by default
`sho demangle-style`	current C++ demangling style
`sho detach-on-fork`	detach the child of a fork
`sho directories`	search path for source files
`sho disable-randomization`	virtual address space randomization
`sho disassemble-next-line`	or insn when execution stops
`sho disconnected-tracing`	tracing continues after disconnects
`sho displaced-stepping`	willingness to use displaced stepping
`sho editing`	of command lines as they are typed
`sho endian`	endianness of target
`sho environment`	to give the program
`sho exec-direction`	forward/reverse
`sho exec-done-display`	notification of completion for asynchronous execution
`sho exec-wrapper`	the wrapper for running programs
`sho extended-prompt`
`sho extension-language`	mapping between filename extension and source language
`sho follow-exec-mode`	response of exec
`sho follow-fork-mode`	response of fork or vfork
`sho gnutarget`	current BFD target
`sho listsize`	number of source lines will list by default
`sho height`	number of lines in a page
`sho history expansion`	commands
`sho history filename`	save command history
`sho history save`	on exit
`sho history size`	size of the command history
`sho host-charset`	host character set
`sho inferior-tty`	terminal for future runs of program
`sho input-radix`	default for entering numbers
`sho interactive-mode`	is standard input a terminal
`sho language`	current source language
`sho libthread-db-search-path`	the current search path or libthread_db
`sho logging`	options
`sho logging file`	current
`sho logging overwrite`	overwrites or appends
`sho logging redirect`	output mode
`sho max-user-call-depth`	for user-defined commands
Permissions
`sho may-insert-breakpoints`
`sho may-insert-fast-tracepoints`
`sho may-insert-tracepoints`
`sho may-interrupt`	to interrupt or signal
`sho may-write-memory`	to write into memory
`sho may-write-registers`	to write into registers

`sho mem`	Memory regions settings
`sho mem inaccessible-by-default`	handling of unknown memory regions

`sho multiple-symbols`	ambiguities handling in expressions
`sho non-stop`	controls the inferior in non-stop mode
`sho observer`	controls the inferior in observer mode
`sho opaque-type-resolution`	struct/class/union types (if set before loading symbols)
`sho osabi`	OS ABI of target
`sho output-radix`	default output radix for printing of values
`sho overload-resolution`	overload resolution in evaluating C++ functions
`sho pagination`	state of
`sho paths`	Current search path for finding object files

`sho print address`
`sho print array`	prettyprinting
`sho print array-indexes`	printing of array indexes
`sho print asm-demangle`	demangling of C++/ObjC names in disassembly listings
`sho print demangle`	demangling of encoded C++/ObjC names when displaying symbols
`sho print elements`	limit on string chars or array elements to print
`sho print entry-values`	printing of function arguments at function entry
`sho print frame-arguments`	printing of non-scalar frame arguments
`sho print inferior-events`	printing of inferior events (e
`sho print max-symbolic-offset`	the largest offset that will be printed in form
`sho print null-stop`	printing of char arrays to stop at first null char
`sho print object`	printing of object's derived type based on vtable info
`sho print pascal_static-members`	printing of pascal static members
`sho print pretty`	prettyprinting of structures
`sho print repeats`	threshold for repeated print elements
`sho print sevenbit-strings`	printing of 8-bit characters in strings as \nnn
`sho print static-members`	printing of C++ static members
`sho print symbol-filename`	printing of source filename and line number with
`sho print thread-events`	printing of thread events (such as thread start and exit)
`sho print union`	printing of unions interior to structures
`sho print vtbl`	printing of C++ virtual function tables
`sho prompt`	gdb's prompt
`sho python`	Prefix command for python preference settings
`sho python print-stack`	the mode of Python stack printing on error
`sho radix`	the default input and output number radices
`sho record`	record options
`sho record insn-number-max`	record/replay buffer limit
`sho record memory-query`	whether query if PREC cannot record memory change of next instruction
`sho record stop-at-limit`	whether record/replay stops when record/replay buffer becomes full
`sho ada`	Generic command for showing Ada-specific settings
`sho ada trust-PAD-over-XVS`	whether an optimization trusting PAD types over XVS types is activated
`sho annotate`	annotation_level
`sho architecture`	architecture of target

`show remote`

`show remote`	Remote protocol specific variables
`show remote P-packet`	`P' (set-register) packet
`show remote TracepointSource-packet`	`TracepointSource' (TracepointSource) packet
`show remote X-packet`	`X' (binary-download) packet
`show remote Z-packet`	use of remote protocol `Z' packets
`show remote access-watchpoint-packet`	`Z4' (access-watchpoint) packet
`show remote allow-packet`	`QAllow' (allow) packet
`show remote attach-packet`	`vAttach' (attach) packet
`show remote binary-download-packet`	`X' (binary-download) packet
`show remote conditional-tracepoints-packet`	`ConditionalTracepoints' (conditional-tracepoints) packet
`show remote disable-randomization-packet`	`QDisableRandomization' (disable-randomization) packet
`show remote exec-file`	the remote pathname for "run"
`show remote fast-tracepoints-packet`	`FastTracepoints' (fast-tracepoints) packet
`show remote fetch-register-packet`	`p' (fetch-register) packet
`show remote get-thread-information-block-address-packet`	`qGetTIBAddr' (get-thread-information-block-address) packet
`show remote get-thread-local-storage-address-packet`	`qGetTLSAddr' (get-thread-local-storage-address) packet
`show remote hardware-watchpoint-length-limit`	the maximum length (in bytes) of a target hardware watchpoint
`show remote hardware-watchpoint-limit`	the maximum number of target hardware watchpoints
`show remote hostio-close-packet`	`vFile:close' (hostio-close) packet
`show remote hostio-open-packet`	`vFile:open' (hostio-open) packet
`show remote hostio-pread-packet`	`vFile:pread' (hostio-pread) packet
`show remote hostio-pwrite-packet`	`vFile:pwrite' (hostio-pwrite) packet
`show remote hostio-unlink-packet`	`vFile:unlink' (hostio-unlink) packet
`show remote install-in-trace-packet`	`InstallInTrace' (install-in-trace) packet
`show remote interrupt-on-connect`	Show whether interrupt-sequence is sent to remote target when gdb connects to
`show remote interrupt-sequence`	interrupt sequence to remote target
`show remote kill-packet`	`vKill' (kill) packet
`show remote library-info-packet`	`qXfer:libraries:read' (library-info) packet
`show remote library-info-svr4-packet`	`qXfer:libraries-svr4:read' (library-info-svr4) packet
`show remote memory-map-packet`	`qXfer:memory-map:read' (memory-map) packet
`show remote memory-read-packet-size`	the maximum number of bytes per memory-read packet
`show remote memory-write-packet-size`	the maximum number of bytes per memory-write packet
`show remote noack-packet`	`QStartNoAckMode' (noack) packet
`show remote osdata-packet`	`qXfer:osdata:read' (osdata) packet
`show remote p-packet`	`p' (fetch-register) packet
`show remote pass-signals-packet`	`QPassSignals' (pass-signals) packet
`show remote query-attached-packet`	`qAttached' (query-attached) packet
`show remote read-aux-vector-packet`	`qXfer:auxv:read' (read-aux-vector) packet
`show remote read-fdpic-loadmap-packet`	`qXfer:fdpic:read' (read-fdpic-loadmap) packet
`show remote read-sdata-object-packet`	`qXfer:statictrace:read' (read-sdata-object) packet
`show remote read-siginfo-object-packet`	`qXfer:siginfo:read' (read-siginfo-object) packet
`show remote read-spu-object-packet`	`qXfer:spu:read' (read-spu-object) packet
`show remote read-watchpoint-packet`	`Z3' (read-watchpoint) packet
`show remote reverse-continue-packet`	`bc' (reverse-continue) packet
`show remote reverse-step-packet`	`bs' (reverse-step) packet
`show remote run-packet`	`vRun' (run) packet
`show remote search-memory-packet`	`qSearch:memory' (search-memory) packet
`show remote set-register-packet`	`P' (set-register) packet
`show remote static-tracepoints-packet`	`StaticTracepoints' (static-tracepoints) packet
`show remote supported-packets-packet`	`qSupported' (supported-packets) packet
`show remote symbol-lookup-packet`	`qSymbol' (symbol-lookup) packet
`show remote system-call-allowed`	if the host system(3) call is allowed for the target
`show remote target-features-packet`	`qXfer:features:read' (target-features) packet
`show remote threads-packet`	`qXfer:threads:read' (threads) packet
`show remote traceframe-info-packet`	`qXfer:trace-frame-info:read' (traceframe-info) packet
`show remote verbose-resume-packet`	`vCont' (verbose-resume) packet
`show remote write-siginfo-object-packet`	`qXfer:siginfo:write' (write-siginfo-object) packet
`show remote write-spu-object-packet`	`qXfer:spu:write' (write-spu-object) packet
`show remote write-watchpoint-packet`	`Z2' (write-watchpoint) packet
`show remoteaddresssize`	the maximum size of the address (in bits) in a memory packet
`show remotebaud`	baud rate for remote serial I/O
`show remotecache`	cache use for remote targets
`show remoteflow`	use of hardware flow control for remote serial I/O
`show remotelogbase`	numerical base for remote session logging
`show remotelogfile`	filename for remote session recording
`show remotetimeout`	timeout limit to wait for target to respond
`show remotewritesize`	the maximum number of bytes per memory write packet (deprecated)
`show schedule-multiple`	mode for resuming threads of all processes
`show scheduler-locking`	mode for locking scheduler during execution
`show script-extension`	mode for script filename extension recognition
`show serial`	default serial/parallel port configuration
`show solib-absolute-prefix`	the current system root
`show solib-search-path`	the search path for loading non-absolute shared library symbol files
`show stack-cache`	cache use for stack access
`show step-mode`	mode of the step operation
`show stop-on-solib-events`	stopping for shared library events
`show substitute-path`	Usage: show substitute-path [FROM]
`show symbol-reloading`	dynamic symbol table reloading multiple times in one run
`show sysroot`	the current system root
`show target-async`	whether gdb controls the inferior in asynchronous mode
`show target-charset`	the target character set
`show target-file-system-kind`	assumed file system kind for target reported file names
`show target-wide-charset`	the target wide character set
`show tcp`	TCP protocol specific variables
`show tcp auto-retry`	auto-retry on socket connect
`show tcp connect-timeout`	timeout limit for socket connection
`show tdesc`	target description specific variables
`show tdesc filename`	the file to read for an XML target description
`show trace-commands`	state of GDB CLI command tracing
`show trace-notes`	the notes string to use for current and future trace runs
`show trace-stop-notes`	the notes string to use for future tstop commands
`show trace-user`	the user name to use for current and future trace runs
`show trust-readonly-sections`	mode for reading from readonly sections
`show tui`	TUI configuration variables
`show tui active-border-mode`	the attribute mode to use for the active TUI window border
`show tui border-kind`	the kind of border for TUI windows
`show tui border-mode`	the attribute mode to use for the TUI window borders
`show unwind-on-terminating-exception`	unwinding of stack if std::terminate() is called while in a call dummy
`show unwindonsignal`	unwinding of stack if a signal is received while in a call dummy
`show user`	definitions of user defined commands
`show values`	Elements of value history around item number IDX (or last ten)
`show verbose`	verbosity
`show version`	what version of GDB this is
`show watchdog`	watchdog timer
`show width`	characters per line. Default window width.
`show write`	writing into executable and core files


`!`	Execute the rest of the line as a shell command
`alias`	Define a new command that is an alias of an existing command
`apropos`	Search for commands matching a REGEXP
`define`	Define a new command name
`document`	Document a user-defined command
`dont-repeat`	Don't repeat this command
`down-silently`	Same as the `down' command
`echo`	Print a constant string
`help`	Print list of commands
`if`	Execute nested commands once IF the conditional expression is non zero
`interpreter-exec`	Execute a command in an interpreter
`make`	make using the rest of the line as arguments
`overlay`	Commands overlays
`overlay auto`	Enable automatic overlay debugging
`overlay list-overlays`	List mappings of overlay sections
`overlay load-target`	Read the overlay mapping state from the target
`overlay manual`	Enable overlay debugging
`overlay map-overlay`	Assert that an overlay section is mapped
`overlay off`	Disable overlay debugging
`overlay unmap-overlay`	Assert that an overlay section is unmapped
`quit`	Exit gdb
`shell`	Execute the rest of the line as a shell command
`source`	Read commands from a file named FILE
`up-silently`	Same as the `up' command
`while`	Execute nested commands WHILE the conditional expression is non zero

tracepoints TOC

`actions`	Specify the actions to be taken at a tracepoint
`collect`	Specify one or more data items to be collected at a tracepoint
`end`	Ends a list of commands or actions
`passcount`	the passcount for a tracepoint
`save-tracepoints`	Save current tracepoint definitions as a script
`tdump`	Print everything collected at the current tracepoint
`teval`	Specify one or more expressions to be evaluated at a tracepoint
`tfind`	Select a trace frame;
`tfind end`	Synonym for 'none'
`tfind line`	Select a trace frame by source line
`tfind none`	De-select any trace frame and resume 'live' debugging
`tfind outside`	Select a trace frame whose PC is outside the given range (exclusive)
`tfind pc`	Select a trace frame by PC
`tfind range`	Select a trace frame whose PC is in the given range (inclusive)
`tfind start`	Select the first trace frame in the trace buffer
`tfind tracepoint`	Select a trace frame by tracepoint number
`tsave`	Save the trace data to a file
`tstart`	Start trace data collection
`tstatus`	Display the status of the current trace data collection
`tstop`	Stop trace data collection
`tvariable`	Define a trace state variable
`while-stepping`	Specify single-stepping behavior at a tracepoint

user-defined TOC

Unclassified commands
`add-inferior`	Add a new inferior
`clone-inferior`	Clone inferior ID
`remove-inferiors`	Remove inferior ID (or list of IDs)
`eval`	Convert "printf format string"
`function`	Placeholder command for showing help on convenience functions
`jit-reader-load`	Load FILE as debug info reader and unwinder for JIT compiled code
`jit-reader-unload`	Unload the currently loaded JIT debug info reader
`unset`	Complement to certain "set" commands
`unset environment`	Cancel environment variable VAR for the program
`unset exec-wrapper`	Disable use of an execution wrapper
`unset substitute-path`	Usage: unset substitute-path [FROM]
`unset tdesc`	Unset target description specific variables
`unset tdesc filename`	Unset the file to read for an XML target description
`i copying`	Conditions for redistributing copies of GDB


 variables All defined variables:

Non-debugging symbols:
0x00415160  __CPPdebugHook
0x00415160  strErr!___CPPdebugHook


x[/fmt] [ address]