lldb使用

常用 si,ni ,ex, mem,di,reg,b,c,x

以下内容是lldb帮助文档中内容:

apropos           -- List debugger commands related to a word or subject.

breakpoint        -- Commands for operating on breakpoints (see 'help b' for

shorthand.)

bugreport         -- Commands for creating domain-specific bug reports.

command           -- 这 个可以 自定义命令

　　　　　　　　　command alias hp help.    用hp 替换help命令

disassemble       --显示汇编代码 d di dis 等缩写都可以

expression        -- 显示变 量的值

　　　　　　　　ex    n

frame            :

　　info  用法 frame info 显示一些当前线程信息

　　select     frame select 显示当前调试线程位置信息

　　variable  frame var   显示当前调试线程局部变量信息

kdp-remote        -- Connect to a process via remote KDP server.  If no UDP

port is specified, port 41139 is assumed.

language          -- Commands specific to a source language.

log               -- Commands controlling LLDB internal logging.

  memory            --操作当前进程内存

　　　　    mem read &result   读取变量result中的值

　　　　　　　

 　　　　　　mem read -c  &result 显示100字节

platform          -- Commands to manage and create platforms.

plugin            -- lldb插件管理

process           -- Commands for interacting with processes on the current

platform.

quit              -- 退出lldb

register          -- 读写寄存器值

　　　　　　

script            -- Invoke the script interpreter with provided code and

display any results.  Start the interactive interpreter

if no code is supplied.

settings          -- Commands for managing LLDB settings.

source            -- 通过调试信息展示源文件信息

target            -- Commands for operating on debugger targets.

thread            -- Commands for operating on one or more threads in the

current process.

type              -- Commands for operating on the type system.

version           -- Show the LLDB debugger version.

watchpoint        -- Commands for operating on watchpoints.

Current command abbreviations (type 'help command alias' for more info):

add-dsym  --增加符号表

attach    -- 附加进程

b      设置断点

bt        显示当前栈信息，frame中有的命令功能相同

c        继续运行当前进程中的所有线程

call      直接调用表达示　比如　call 1+1

continue  -- Continue execution of all threads in the current process.

detach    -- Detach from the current target process.

di          dis 显示反汇编代码

display   -- Evaluate an expression at every stop (see 'help target

stop-hook'.)

down      -- Select a newer stack frame.  Defaults to moving one frame, a

numeric argument can specify an arbitrary number.

env       -- Shorthand for viewing and setting environment variables.

exit      -- 退出

f         -- Select the current stack frame by index from within the current

thread (see 'thread backtrace'.)

file      -- Create a target using the argument as the main executable.

finish    -- Finish executing the current stack frame and stop after

returning.  Defaults to current thread unless specified.

image     -- Commands for accessing information for one or more target

modules.

j         -- Set the program counter to a new address.

jump      -- Set the program counter to a new address.

kill      -- Terminate the current target process.

l         --显示源码

list

n         源码级别单步

next      -- Source level single step, stepping over calls.  Defaults to

current thread unless specified.

nexti     -- Instruction level single step, stepping over calls.  Defaults to

current thread unless specified.

ni        汇编级别单步

p         -- Evaluate an expression on the current thread.  Displays any

returned value with LLDB's default formatting.

parray    -- Evaluate an expression on the current thread.  Displays any

returned value with LLDB's default formatting.

po        -- Evaluate an expression on the current thread.  Displays any

returned value with formatting controlled by the type's author.

poarray   -- Evaluate an expression on the current thread.  Displays any

returned value with LLDB's default formatting.

print     -- Evaluate an expression on the current thread.  Displays any

returned value with LLDB's default formatting.

q         -- Quit the LLDB debugger.

r         -- Launch the executable in the debugger.

rbreak    -- Sets a breakpoint or set of breakpoints in the executable.

repl      -- Evaluate an expression on the current thread.  Displays any

returned value with LLDB's default formatting.

run       -- Launch the executable in the debugger.

s         -- Source level single step, stepping into calls.  Defaults to

current thread unless specified.

si        -- Instruction level single step, stepping into calls.  Defaults to

current thread unless specified.

sif       -- Step through the current block, stopping if you step directly

into a function whose name matches the TargetFunctionName.

step      -- Source level single step, stepping into calls.  Defaults to

current thread unless specified.

stepi     -- Instruction level single step, stepping into calls.  Defaults to

current thread unless specified.

t         -- Change the currently selected thread.

tbreak    -- Set a one-shot breakpoint using one of several shorthand

formats.

undisplay -- Stop displaying expression at every stop (specified by stop-hook

index.)

up        -- Select an older stack frame.  Defaults to moving one frame, a

numeric argument can specify an arbitrary number.

x         读内存地址