lldb

Is there any method to obtain (via debug) a list of all instance variables of an unknown object in Objective-c? I use lldb for debug, but I admit that I don't know it very well. Obviously I can't look at the header of this unknown object. I need to do it at debug time, but if it's not possible I can use an alternative at runtime. I've found this post: How do I list all fields of an object in Objective-C? but, as I understand, I need to have a known Class (I need the headers of the object) Any suggestion? Ramy Al Zuhouri Exploiting the code of the accepted answer of the question that you linked

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've found a nice plugin for lldb that allows watching memory regions as images: https://github.com/carlodalmutto/ImageWatchLLDB As I can see, this plugin was developed for Xcode and not for Android. However, it is written in Python and therefore should be cross-platform. I've found a directory c:\Users\username\.lldb\ on my hard drive. Its size is about 1 Gb. I've created following files: c:\Users\username\.lldbinit , c:\Users\username\lldbinit , c:\Users\username\.lldb\lldbinit , c:\Users\username\.lldb\.lldbinit , c:\Users\username\.lldb

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My ionic app is hanging on the splash screen - it was working fine and then I added some code, and went to test, and it's getting stuck. It gets to this point: ------ Debug phase ------ Starting debug of 2e5ac6066864be48322a757c4d0ccdfde52cf356 (N51AP, iPhone 5s (GSM), iphoneos, arm64) a.k.a. 'Eamon White’s iPhone' connected through USB... [ 0%] Looking up developer disk image [ 90%] Mounting developer disk image [ 95%] Developer disk image already mounted [100%] Connecting to remote debug server ------------------------- (lldb) command

If you edit a breakpoint from Xcode, there is the super-useful option to add an "Action" to be automatically executed every time the breakpoint is hit. How can you add such actions from the LLDB command line? Easy peasy with the breakpoint command add command. Type help breakpoint command add for details but here's an example. int main () { int i = 0; while (i < 30) { i++; // break here } } Run lldb on this. First, put a breakpoint on the source line with "break" somewhere in it (nice shorthand for examples like this but it basically has to grep over your sources, so not useful for larger

I'm using lldb inside Xcode, and one of my variables contains a huge chunk of JSON data. Using po myVar isn't much helpful to analyse this data, as it will output in the tiny Xcode debug console. Is there a way to redirect lldb output to a file ? I saw here that such a feature seems to be available on gdb as : (gdb) set logging on (gdb) set logging file /tmp/mem.txt (gdb) x/512bx 0xbffff3c0 (gdb) set logging off and is "translated" in lldb as : (lldb) memory read --outfile /tmp/mem.txt --count 512 0xbffff3c0 (lldb) me r -o/tmp/mem.txt -c512 0xbffff3c0 (lldb) x/512bx -o/tmp/mem.txt 0xbffff3c0

Say I have a variable, self.position , how do I get Xcode to break whenever it changes its value (a number of methods could change it). For conditional breaking: Cmd+option click the breakpoint Add a break condition like so: For breaking on every occasion the value has changed: Implement trivial setter (and getter for the sake of clean code). Add breakpoint to setter. If you want to see who invoked the setter - just look at the next line in the stack trace (viewDidLoad in my example): Update: Adding a watchpoint Break anywhere so that the (lldb) prompt shows up in the console Type in