lldb

I am unable to use lldb to invoke simple, non-templated functions that take string arguments. Is there any way to get lldb to understand the C++ datatype "string", which is a commonly used datatype in C++ programs? The sample source code here just creates a simple class with a few constructors, and then calls them (includes of "iostream" and "string" omitted): using namespace std; struct lldbtest{ int bar=5; lldbtest(){bar=6;} lldbtest(int foo){bar=foo;} lldbtest(string fum){bar=7;} }; int main(){ string name="fum"; lldbtest x,y(3); cout<<x.bar<<y.bar<<endl; return 0; } When compiled on Mac

前言 今天讲述在苹果日常开发中一个装逼神器LLDB,是Xcode内置的动态调试工具. 在iOS系统程序开发中,会经常需要代码调试的追踪, 最常用的也是LLDB(low level debugger) .LLDB能更好的辅助开发者通过各种手段如修改变量进行测试,甚至能协助开发同学来定位bug. LLDB是新一代高性能的调试器, 也是Mac OSX上Xcode的默认调试器, 支持在桌面和iOS设备模拟器上调试C,OC和C++以及Swift. 帮助 LLDB命令的格式如下: <命令名称> <命令动作> [-可选项 [可选项的值]] [参数1 [参数2...]] LLDB命令是由各部分空格分割, 如果参数是包含空格, 则需要双引号括起参数,如果参数本身中包含双引号或反斜杠, 就需要使用反斜杠来进行转义. LLDB命令是非常多的, 完全记录下来是不可能的, 而且还没有必要. 可以利用help命令查看相关LLDB命令的用法.如下: 三、LLDB常见命令 3.1 breakpoint指令 示例Demo1 　　func test1(str: String) { self.test2(str: str) } func test2(str: String) { self.test3(str: str) } func test3(str: String) { print(str) } override

Adding a symbolic breakpoint in Xcode gives you an example template of -[NSException raise] . I want to do the same thing but specifically on -[NSRangeException raise] . The reason being that I want to breakpoint only on specific array bounds exceptions, for example: *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 31 beyond bounds [0 .. 30]' Yes, I know that I can add a catch all exception breakpoint. However, I do not want to do that as I do not want to breakpoint on the many exceptions generated throughout using the app. I've

My application lately seems to randomly crash with no error or exceptions. The console just shows (lldb) in light blue. I have uncaught exception handling and still nothing. It happens at random times. I can do the same task over and over and sometimes it will happen and sometimes it won't. Also sometimes it will happen in random places within the application. So far what I have read is it is possibly just the lldb debugger crashing and not my app however I haven't noticed it before. Any ideas how to figure out what the cause of the crash is? It seems to have started when I added MBProgressHUD

I have a global function in a long run program : int test() { int a = 12; int c = 10; printf("a=%d",a); a += c ; printf("a=%d", a); return a; } I debug the program and break, then issue the following command: (lldb) call test() a=12a=22(int) $0 = 22 (lldb) I want it to break in test() method every line after I hit call test() , not just return the result immediately. Anyone knows how to do it ? ------------------------------------ Answer Below ------------------------------------ @Jason Molenda 's answer is the right answer,use expr -i0 -- test() instead of call test() : (lldb) b test

This is an extended version of the guide I posted in 2014 . It covers iOS 7-9 for ARM32 and 64 bit processors. Please note that LLDB is quite buggy, so some things may not work for you, or work in a wrong way. Shit happens, sorry. 这篇文章是 2014年写的一篇 指导文章 的番外篇. 覆盖了从iOS7到iOS9的32位和64位程序. 请注意LLDB很棒, so some 所以有些事情可能不会以错误的方式为你工作，或工作。妈的情况，对不起。 概要: 准备沙盒 环境 准备debugserver 给debugserver签名 复制debugserver到iOS 设备 开始准备 问题和解决方法 debugserver不启动的解决 lldb显示SDK Path error 使用.lldbinit 使用USB进行联调 开始调试 进行中的进程 等待进程 使用LLDB运行程序 ASLR 在内存中计算ASLR漂移 移除ASLR Using a decrypted binary Preparing the sandbox Environment 你需要准备:

My software uses the SIGUSR2 signal and I am using LLDB (under Xcode 4.6.2) as my debugger. I would like to disable LLDB from stoping at SIGUSR2 and have been doing so using the command: process handle --pass true --stop false --notify true SIGUSR2 I am looking for a way to have LLDB always execute this command at startup. I have looked into adding something along the lines of settings append target.process.extra-startup-command process in my .lldbinit, but while this changes the value of the target.process.extra-startup-command setting (as evidenced by the settings show command), I am