GDB HELP

Type "help" followed by command name for full documentation.
Command name abbreviations are allowed if unambiguous.
(gdb) help
List of classes of commands:

aliases -- Aliases of other commands
breakpoints -- Making program stop at certain points
data -- Examining data
files -- Specifying and examining files
internals -- Maintenance commands
obscure -- Obscure features
running -- Running the program
stack -- Examining the stack
status -- Status inquiries
support -- Support facilities
tracepoints -- Tracing of program execution without stopping the program
user-defined -- User-defined commands

HELP ALIASES

(gdb) help aliases
Aliases of other commands.

List of commands:

delete breakpoints -- Delete some breakpoints or auto-display expressions
disable breakpoints -- Disable some breakpoints
ni -- Step one instruction
si -- Step one instruction exactly
stepping -- Specify single-stepping behavior at a tracepoint
tp -- Set a tracepoint at a specified line or function or address
where -- Print backtrace of all stack frames
ws -- Specify single-stepping behavior at a tracepoint

HELP BREAKEPOINTS

(gdb) help breakpoints
Making program stop at certain points.

List of commands:

awatch -- Set a watchpoint for an expression
break -- Set breakpoint at specified line or function
catch -- Set breakpoints to catch exceptions that are raised
clear -- Clear breakpoint at specified line or function
commands -- Set commands to be executed when a breakpoint is hit
condition -- Specify breakpoint number N to break only if COND is true
delete -- Delete some breakpoints or auto-display expressions
disable -- Disable some breakpoints
enable -- Enable some breakpoints
hbreak -- Set a hardware assisted  breakpoint
ignore -- Set ignore-count of breakpoint number N to COUNT
rbreak -- Set a breakpoint for all functions matching REGEXP
rwatch -- Set a read watchpoint for an expression
tbreak -- Set a temporary breakpoint
thbreak -- Set a temporary hardware assisted breakpoint
watch -- Set a watchpoint for an expression

HELP DATA

(gdb) help data
Examining data.

List of commands:

call -- Call a function in the program
delete display -- Cancel some expressions to be displayed when program stops
disable display -- Disable some expressions to be displayed when program stops
disassemble -- Disassemble a specified section of memory
display -- Print value of expression EXP each time the program stops
enable display -- Enable some expressions to be displayed when program stops
inspect -- Same as "print" command
output -- Like "print" but don't put in value history and don't print newline
print -- Print value of expression EXP
printf -- Printf "printf format string"
ptype -- Print definition of type TYPE
set -- Evaluate expression EXP and assign result to variable VAR
set variable -- Evaluate expression EXP and assign result to variable VAR
undisplay -- Cancel some expressions to be displayed when program stops
whatis -- Print data type of expression EXP
x -- Examine memory: x/FMT ADDRESS

HELP FILES

(gdb) help files
Specifying and examining files.

List of commands:

add-shared-symbol-files -- Load the symbols from shared objects in the dynamic linker's link map
add-symbol-file -- Usage: add-symbol-file FILE ADDR
cd -- Set 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
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
list -- List specified function or line
load -- Dynamically load FILE into the running program
path -- Add directory DIR(s) to beginning of search path for object files
pwd -- Print working directory
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
set gnutarget -- Set the current BFD target
sharedlibrary -- Load shared object library symbols for files matching REGEXP
show gnutarget -- Show the current BFD target
symbol-file -- Load symbol table from executable file FILE

HELP INTERNALS

(gdb) help internals
Maintenance commands.
Some gdb commands are provided just for use by gdb maintainers.
These commands are subject to frequent change, and may not be as
well documented as user commands.

List of commands:

maintenance -- Commands for use by GDB maintainers
maintenance check-symtabs -- Check consistency of psymtabs and symtabs
maintenance demangle -- Demangle a C++ mangled name
maintenance dump-me -- Get fatal error; make debugger dump its core
maintenance info -- Commands for showing internal info about the program being debugged
maintenance info breakpoints -- Status of all breakpoints
maintenance info sections -- List the BFD sections of the exec and core files
maintenance info sol-threads -- Show info on Solaris user threads
maintenance print -- Maintenance command for printing GDB internal state
maintenance print msymbols -- Print dump of current minimal symbol definitions
maintenance print objfiles -- Print dump of current object file definitions
maintenance print psymbols -- Print dump of current partial symbol definitions
maintenance print statistics -- Print statistics about internal gdb state
maintenance print symbols -- Print dump of current symbol definitions
maintenance print type -- Print a type chain for a given symbol
maintenance space -- Set the display of space usage
maintenance time -- Set the display of time usage
maintenance translate-address -- Translate a section name and address to a symbol
set targetdebug -- Set target debugging
set watchdog -- Set watchdog timer
show targetdebug -- Show target debugging
show watchdog -- Show watchdog timer

HELP OBSCURE

(gdb) help obscure
Obscure features.

List of commands:

complete -- List the completions for the rest of the line as a command
remote <command> -- Send a command to the remote monitor
set annotate -- Set annotation_level
show annotate -- Show annotation_level
stop -- There is no `stop' command

HELP RUNNING

(gdb) help running
Running the program.

List of commands:

attach -- Attach to a process or file outside of GDB
continue -- Continue program being debugged
detach -- Detach a process or file previously attached
finish -- Execute until selected stack frame returns
handle -- Specify how to handle a signal
info handle -- What debugger does when program gets various signals
jump -- Continue program being debugged at specified line or address
kill -- Kill execution of program being debugged
next -- Step program
nexti -- Step one instruction
run -- Start debugged program
set args -- Set argument list to give program being debugged when it is started
set environment -- Set environment variable value to give the program
show args -- Show argument list to give program being debugged when it is started
signal -- Continue program giving it signal specified by the argument
step -- Step program until it reaches a different source line
stepi -- Step one instruction exactly
target -- Connect to a target machine or process
thread -- Use this command to switch between threads
thread apply -- Apply a command to a list of threads
apply all -- Apply a command to all threads
tty -- Set terminal for future runs of program being debugged
unset environment -- Cancel environment variable VAR for the program
until -- Execute until the program reaches a source line greater than the current

HELP STACK

(gdb) help stack
Examining the stack.
The stack is made up of stack frames.  Gdb assigns numbers to stack frames
counting from zero for the innermost (currently executing) frame.

At any time gdb identifies one frame as the "selected" frame.
Variable lookups are done with respect to the selected frame.
When the program being debugged stops, gdb selects the innermost frame.
The commands below can be used to select other frames by number or address.

List of commands:

backtrace -- Print backtrace of all stack frames
bt -- Print backtrace of all stack frames
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

HELP STATUS

(gdb) help status
Status inquiries.

List of commands:

info -- Generic command for showing things about the program being debugged
show -- Generic command for showing things about the debugger

HELP SUPPORT

Support facilities.

List of commands:

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
info architecture -- List supported target architectures
make -- Run the ``make'' program using the rest of the line as arguments
overlay -- Commands for debugging 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
set architecture -- Set architecture of target
set auto-solib-add -- Set autoloading of shared library symbols
set check range -- Set range checking
set check type -- Set type checking
set complaints -- Set max number of complaints about incorrect symbols
set confirm -- Set whether to confirm potentially dangerous operations
set demangle-style -- Set the current C++ demangling style
set editing -- Set editing of command lines as they are typed
set endian -- Set endianness of target
set endian auto -- Select target endianness automatically
set endian big -- Set target as being big endian
set endian little -- Set target as being little endian
set height -- Set number of lines gdb thinks are in a page
set history -- Generic command for setting command history parameters
set input-radix -- Set default input radix for entering numbers
set language -- Set the current source language
set listsize -- Set number of source lines gdb will list by default
set output-radix -- Set default output radix for printing of values
set print address -- Set printing of addresses
set print array -- Set prettyprinting of arrays
set print asm-demangle -- Set demangling of C++ names in disassembly listings
set print demangle -- Set demangling of encoded C++ names when displaying symbols
set print object -- Set printing of object's derived type based on vtable info
set print pretty -- Set prettyprinting of structures
set print sevenbit-strings -- Set printing of 8-bit characters in strings as \nnn
set print static-members -- Set printing of C++ static members
set print union -- Set printing of unions interior to structures
set print vtbl -- Set printing of C++ virtual function tables
set prompt -- Set gdb's prompt
set radix -- Set default input and output number radices
set remotecache -- Set cache use for remote targets
set solib-absolute-prefix -- Set prefix for loading absolute shared library symbol files
set solib-search-path -- Set the search path for loading non-absolute shared library symbol files
set stop-on-solib-events -- Set stopping for shared library events
set symbol-reloading -- Set dynamic symbol table reloading multiple times in one run
set verbose -- Set verbosity
set width -- Set number of characters gdb thinks are in a line
set write -- Set writing into executable and core files
shell -- Execute the rest of the line as a shell command
show architecture -- Show architecture of target
show auto-solib-add -- Show autoloading of shared library symbols
show check range -- Show range checking
show check type -- Show type checking
show complaints -- Show max number of complaints about incorrect symbols
show confirm -- Show whether to confirm potentially dangerous operations
show demangle-style -- Show the current C++ demangling style
show editing -- Show editing of command lines as they are typed
show endian -- Show endianness of target
show height -- Show number of lines gdb thinks are in a page
show history -- Generic command for showing command history parameters
show input-radix -- Show default input radix for entering numbers
show language -- Show the current source language
show listsize -- Show number of source lines gdb will list by default
show output-radix -- Show default output radix for printing of values
show print address -- Show printing of addresses
show print array -- Show prettyprinting of arrays
show print asm-demangle -- Show demangling of C++ names in disassembly listings
show print demangle -- Show demangling of encoded C++ names when displaying symbols
show print object -- Show printing of object's derived type based on vtable info
show print pretty -- Show prettyprinting of structures
show print sevenbit-strings -- Show printing of 8-bit characters in strings as \nnn
show print static-members -- Show printing of C++ static members
show print union -- Show printing of unions interior to structures
show print vtbl -- Show printing of C++ virtual function tables
show prompt -- Show gdb's prompt
show radix -- Show the default input and output number radices
show remotecache -- Show cache use for remote targets
show solib-absolute-prefix -- Show prefix for loading absolute shared library symbol files
show solib-search-path -- Show the search path for loading non-absolute shared library symbol files
show stop-on-solib-events -- Show stopping for shared library events
show symbol-reloading -- Show dynamic symbol table reloading multiple times in one run
show verbose -- Show verbosity
show width -- Show number of characters gdb thinks are in a line
show write -- Show writing into executable and core files
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

HELP TRACEPOINTS

(gdb) help tracepoints
Tracing of program execution without stopping the program.

List of commands:

actions -- Specify the actions to be taken at a tracepoint
collect -- Specify one or more data items to be collected at a tracepoint
delete tracepoints -- Delete specified tracepoints
disable tracepoints -- Disable specified tracepoints
enable tracepoints -- Enable specified tracepoints
end -- Ends a list of commands or actions
passcount -- Set the passcount for a tracepoint
save-tracepoints -- Save current tracepoint definitions as a script
tdump -- Print everything collected at the current 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
tfind pc -- Select a trace frame by PC
tfind range -- Select a trace frame whose PC is in the given range
tfind start -- Select the first trace frame in the trace buffer
tfind tracepoint -- Select a trace frame by tracepoint number
trace -- Set a tracepoint at a specified line or function or address
tstart -- Start trace data collection
tstatus -- Display the status of the current trace data collection
tstop -- Stop trace data collection
while-stepping -- Specify single-stepping behavior at a tracepoint