lldb

lldb命令

进入断点的几种方式

• 如红色部分 2.jpg

• 异常中断

断点设置

• break set -n moonTest:
• break list //获取断点列表
• break delete 4 //1 breakpoints deleted; 0 breakpoint locations disabled.
• break set -f ViewController.m -n moonTest3://针对某一个文件设置断点
• breakpoint set -l //某一行设置断点
• break set -r moon //模糊匹配所有带moon的方法
• breakpoint set --selector alignLeftEdges:
• break delete //删除所有断点

p和po的官方解释

• 'po' is an abbreviation for 'expression -O --'

• 'p' is an abbreviation for 'expression --'

• p self.view.backgroundColor = [UIColor blueColor];

• call [self.view setBackgroundColor:[UIColor redColor]]

修改并打印某一个值

• p (Person*)self.personArray.lastObject //(Person *) $1 = 0x000060000003fa60
• p $1.name = @"qqqq" //(NSTaggedPointerString *) $2 = 0xa000000717171714 @"qqqq"
• p (Person*)self.personArray.lastObject //(Person *) $3 = 0x000060000003fa60

调用栈

• bt指令 显示调用栈
• up、down 栈的前进后退
• frame select 3 选择第3条
• frame variable -- Show variables for the current stack frame. Defaults to all

(ViewController *) self = 0x00007fd525707f20
(SEL) _cmd = "moonTest3:"
(__NSCFConstantString *) str = 0x00000001046a3198 @"13"

流程控制

• n 单步 s跳进去 c继续
• 汇编 ni si

watchpoint

• watch set variable per1->_name
• watch modify -c ‘global == 5’//条件断点
• break command add 3
• breakpoint command list
• breakpoint command delete 3

break command add 3 
Enter your debugger command(s).  Type 'DONE' to end.
> bt
> DONE

stop hook

• 每次停车时都要追踪和拆卸。target stop-hook add -o “frame variable”
• image lookup --address 0x0000000100004af8

.lidbinit

• 这个文件不太会玩，先不写了。