LLDB部分指令

LLDB部分指令

print、p :打印

po :打印对象

读取内存

memory read 内存地址 （memory read/数量格式字节数 内存地址）

(可以简写为) x/数量格式字节数 内存地址

示例：x/3xw 0x10010

格式说明

x :16进制; f :浮点; d :10进制

字节数说明

b :byte 1个字节； h :half word 2字节； w :word 4字节； g :giant word 8字节

修改内存中的值

memory write 内存地址 数值

示例：memory write 0x10010 10

(lldb) print student
(Student *) $3 = 0x000000010071f140

(lldb) p student
(Student *) $4 = 0x000000010071f140

(lldb) po student
<Student: 0x10071f140>

(lldb) memory read 0x000000010071f140
0x10071f140: 81 12 00 00 01 80 1d 00 00 00 00 00 00 00 00 00  ................
0x10071f150: 20 f2 71 00 01 00 00 00 60 f4 71 00 01 00 00 00   .q.....`.q.....

(lldb) memory read/3xg 0x000000010071f140
0x10071f140: 0x001d800100001281 0x0000000000000000
0x10071f150: 0x000000010071f220

(lldb) x/3xg 0x000000010071f140
0x10071f140: 0x001d800100001281 0x0000000000000000
0x10071f150: 0x000000010071f220
(lldb) memory write 0x10071f14b 5

(lldb) memory read 0x10071f140
0x10071f140: 81 12 00 00 01 80 1d 00 00 00 00 05 00 00 00 00  ................
0x10071f150: 20 f2 71 00 01 00 00 00 60 f4 71 00 01 00 00 00   .q.....`.q.....

(lldb) x/3xg 0x000000010071f140
0x10071f140: 0x001d800100001281 0x0000000005000000
0x10071f150: 0x000000010071f220


//	methodForSelector 返回方法的IMP
(lldb) p (IMP)0x10f640f50
(IMP) $0 = 0x000000010f640f50 (KVO`-[TBPerson setName:] at TBPerson.h:15)

PS 此文为学习 李明杰 老师的 iOS底层原理课程 所写笔记

来源：CSDN

作者：BoAiLing

链接：https://blog.csdn.net/tanxianbo/article/details/104544190