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\init
All of them have the similar content:
script print "script print Hi from lldb" echo "echo Hi" Unfortunately I don't see any output.
I can open LLDB console and issue these commands:
(lldb) script print "script print Hi from lldb" script print Hi from lldb (lldb) echo "Hi" error: 'echo' is not a valid command. error: Unrecognized command 'echo'. This means that LLDB understands script print command.
Installation directory for Android Studio contains the subdirectory bin\lldb containing python scripts with pretty printers (file jstring_reader.py, gdb\printing.py, etc)
So, it seems possible to extend LLDB from recent NDK.
The question is: how can I add my custom plugins?
UPDATE. After some hacking I've found that LLDB commands, starting with the "script" string, are actually python commands:
(lldb) script print sys.executable C:\Android\sdk\lldb\3.1\bin\LLDBFrontend.exe (lldb) script print sys.version 2.7.10 (default, Feb 24 2016, 14:25:13) [MSC v.1900 64 bit (AMD64)] (lldb) script print sys.path ['C:/Android/sdk/lldb/3.1/bin', 'C:/Android/Android Studio/bin/lldb/shared/jobject_printers', 'C:/Android/sdk/lldb/3.1/lib/site-packages', 'C:\\Android\\sdk\\lldb\\3.1\\bin\\python27.zip', 'C:\\Android\\sdk\\lldb\\3.1\\DLLs', 'C:\\Android\\sdk\\lldb\\3.1\\lib', 'C:\\Android\\sdk\\lldb\\3.1\\lib\\plat-win', 'C:\\Android\\sdk\\lldb\\3.1\\lib\\lib-tk', 'C:\\Android\\sdk\\lldb\\3.1\\bin', 'C:\\Android\\sdk\\lldb\\3.1', 'C:\\Android\\sdk\\lldb\\3.1\\lib\\site-packages', '.', 'C:\\Android\\Android Studio\\bin\\lldb\\shared\\stl_printers', 'C:\\Android\\sdk\\ndk-bundle\\prebuilt\\windows-x86_64\\share\\pretty-printers\\libstdcxx\\gcc-4.9'] (lldb) script import pip Traceback (most recent call last): File "<input>", line 1, in <module> ImportError: No module named pip The first idea of installing missing modules with pip has failed.
I update my question: Are there any official guide on writing python plugins for lldb from NDK?
UPDATE 2. Have tried creating Anaconda virtual environment with the same python version and adding it to sys.path. Also failed.
(lldb) script os.environ['PATH']+= r'C:\Anaconda\envs\ndkpy;' (lldb) script os.environ['PATH']+= r'C:\Anaconda\envs\ndkpy\Library\bin;' (lldb) script import numpy as np Traceback (most recent call last): File "<input>", line 1, in <module> File "C:\Anaconda\envs\ndkpy\Lib\site-packages\numpy\__init__.py", line 142, in <module> from . import add_newdocs File "C:\Anaconda\envs\ndkpy\Lib\site-packages\numpy\add_newdocs.py", line 13, in <module> from numpy.lib import add_newdoc File "C:\Anaconda\envs\ndkpy\Lib\site-packages\numpy\lib\__init__.py", line 8, in <module> from .type_check import * File "C:\Anaconda\envs\ndkpy\Lib\site-packages\numpy\lib\type_check.py", line 11, in <module> import numpy.core.numeric as _nx File "C:\Anaconda\envs\ndkpy\Lib\site-packages\numpy\core\__init__.py", line 26, in <module> raise ImportError(msg) ImportError: Importing the multiarray numpy extension module failed. Most likely you are trying to import a failed build of numpy. If you're working with a numpy git repo, try `git clean -xdf` (removes all files not under version control). Otherwise reinstall numpy. Original error was: DLL load failed: A dynamic link library (DLL) initialization routine failed. UPDATE 3. Have found C:\Android\Sdk\lldb\3.1\lib\lib-tk. Tried importing Tkinter, but still no luck:
(lldb) script import Tkinter Traceback (most recent call last): File "<input>", line 1, in <module> File "C:\Android\sdk\lldb\3.1\lib\lib-tk\Tkinter.py", line 39, in <module> import _tkinter # If this fails your Python may not be configured for Tk ImportError: No module named _tkinter