help
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help breakpoint [set]
breakpoint/br
clear
Delete or disable breakpoints matching the specified source file and line
command
Commands for adding, removing and listing LLDB commands executed when a breakpoint is hit.
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# Add LLDB commands to a breakpoint, to be executed whenever the breakpoint is hit. The commands added to the breakpoint replace any commands previously added to it. If no breakpoint is specified, adds the commands to the last created breakpoint.
breakpoint command add 2
> po self
> p self.view.backgroundColor = [UIColor redColor];
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# List the script or set of commands to be executed when the breakpoint is hit.
breakpoint command list 2
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# Delete the set of commands from a breakpoint.
breakpoint command delete 2
delete
Delete the specified breakpoint(s). If no breakpoints are specified, delete them all.
disable
Disable the specified breakpoint(s) without deleting them. If none are specified, disable all breakpoints.
enable
Enable the specified disabled breakpoint(s). If no breakpoints are specified, enable all of them.
list
List some or all breakpoints at configurable levels of detail.
modify
Modify the options on a breakpoint or set of breakpoints in the executable. If no breakpoint is specified, acts on the last created breakpoint. With the exception of -e, -d and -i, passing an empty argument clears the modification.
name
Commands to manage name tags for breakpoints
read
Read and set the breakpoints previously saved to a file with “breakpoint write”.
set
Sets a breakpoint or set of breakpoints in the executable.
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# Set the breakpoint only in this shared library. Can repeat this option multiple times to specify multiple shared libraries.
-s <shlib-name> ( --shlib <shlib-name> )
# Set the breakpoint by function name, evaluating a regular-expression to find the function name(s).
-r <regular-expression> ( --func-regex <regular-expression> )
write
Write the breakpoints listed to a file that can be read in with “breakpoint read”. If given no arguments, writes all breakpoints.
example
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breakpoint set -n touchesBegan:withEvent:
breakpoint set -n "-[ViewController touchesBegan:withEvent]"
# regular expression
breakpoint set -r est
expression
Evaluate an expression on the current thread.
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expr my_struct->a = my_array[3]
expr -f bin -- (index * 8) + 5
expr unsigned int $foo = 5
expr char c[] = \"foo\"; c[0]
p
p is an abbreviation for expression --
print is an abbreviation for expression --
po
po is an abbreviation for expression -O --
thread
backtrace
Show thread call stacks. Defaults to the currentthread, thread indexes can be specified as arguments.
continue
Continue execution of the current target process. One or more threads may be specified, by default all threads continue.
exception
Display the current exception object for a thread. Defaults to the current thread.
info
Show an extended summary of one or more threads. Defaults to the current thread.
jump
Sets the program counter to a new address.
list
Show a summary of each thread in the current target process. Use ‘settings set thread-format’ to customize the individual thread listings.
plan
Commands for managing thread plans that control execution.
return
Prematurely return from a stack frame, short-circuiting execution of newer frames and optionally yielding a specified value. Defaults to the exiting the current stack frame.
select
Change the currently selected thread.
step-in
Source level single step, stepping into calls. Defaults to current thread unless specified.
step/s
‘step’ is an abbreviation for ‘thread step-in’
’s’ is an abbreviation for ‘thread step-in’
step-inst
Instruction level single step, stepping into calls. Defaults to current thread unless specified.
stepi/si
‘si’ is an abbreviation for ‘thread step-inst’
‘stepi’ is an abbreviation for ‘thread step-inst’
step-inst-over
Instruction level single step, stepping over calls. Defaults to current thread unless specified.
nexti/ni
‘ni’ is an abbreviation for ‘thread step-inst-over’
‘nexti’ is an abbreviation for ‘thread step-inst-over’
step-out
Finish executing the current stack frame and stop after returning. Defaults to current thread unless specified.
finish
‘finish’ is an abbreviation for ‘thread step-out’
step-over
next/n
‘next’ is an abbreviation for ‘thread step-over’
‘n’ is an abbreviation for ‘thread step-over’
Source level single step, stepping over calls. Defaults to current thread unless specified.
step-scripted
Step as instructed by the script class passed in the -C option. You can also specify a dictionary of key (-k) and value (-v) pairs that will be used to populate an SBStructuredData Dictionary, which will be passed to the constructor of the class implementing the scripted step. See the Python Reference for more details.
trace
Commands for operating on traces of the threads in thecurrent process.
until
Continue until a line number or address is reached by the current or specified thread. Stops when returning from the current function as a safety measure. The target line number(s) are given as arguments, and if more than one is provided, stepping will stop when the first one is hit.
bt
Show the current thread’s call stack. Any numeric argument displays at most that many frames.
bt is an abbreviation for _regexp-bt
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bt 10
frame
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frame variable
process
attach
Attach to a process.
detach
Detach from the current target process.
continue
Continue execution of all threads in the current process.
continue/c
‘continue’ is an abbreviation for ‘process continue’
‘c’ is an abbreviation for ‘process continue’
connect
Connect to a remote debug service.
load
Load a shared library into the current process.
unload
Unload a shared library from the current process using the index returned by a previous call to process load.
status
Show status and stop location for the current target process.
trace
Commands for tracing the current process.
interrupt
Interrupt the current target process.
kill
Terminate the current target process.
signal
Send a UNIX signal to the current target process.
plugin
Commands for operating on a ProcessGDBRemote process.
save-core
Save the current process as a core file using an appropriate file type.
handle
Manage LLDB handling of OS signals for the current target process. Defaults to showing current policy.
continue/c
continue is an abbreviation for process continue
c is an abbreviation for process continue
watchpoint(内存断点)
Commands for operating on watchpoints.
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# 监控_age实例变量的内存
watchpoint set variable self->_age
# 在指定内存地址上设置断点
watchpoint set expression &self->_age
target
Commands for accessing information for one or more target modules.
list
List all current targets in the current debug session.
dump
Commands for dumping information about the target.
create
Create a target using the argument as the main executable.
modules
Commands for accessing information for one or more target modules.
image
‘image’ is an abbreviation for ‘target modules’
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image lookup -t NSInteger
image lookup -t ViewController
image lookup -t JXIMClient
# lookup address
image lookup -a <address>
# Lookup a function or symbol by name in one or more target modules.
image lookup -n <function-or-symbol>
select
Select a target as the current target by target index.
show-launch-environment
Shows the environment being passed to the process when launched, taking info account 3 settings: target.env-vars, target.inherit-env and target.unset-env-vars.
stop-hook
Commands for operating on debugger target stop-hooks.
symbols
Commands for adding and managing debug symbol files.
variable
Read global variables for the current target, before or while running a process.
example
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image loo