e3930e77fc
This is a follow-up patch to 6f7835f309b9. As explained previously, when running from an IDE, it can happen that the IDE imports some lldb scripts by itself. If the user also tries to import these commands, lldb will show the following message: ``` error: cannot add command: user command exists and force replace not set ``` This message is confusing to the user, because it suggests that the command import failed and that the execution should stop. However, in this case, lldb will continue the execution with the command added previously by the user. To prevent that, this patch updates every first-party lldb-packaged custom commands to override commands that were pre-imported in lldb. Differential Revision: https://reviews.llvm.org/D140293 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
69 lines
2.6 KiB
Python
Executable File
69 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python
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import lldb
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import optparse
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import shlex
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def stack_frames(debugger, command, result, dict):
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command_args = shlex.split(command)
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usage = "usage: %prog [options] <PATH> [PATH ...]"
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description = '''This command will enumerate all stack frames, print the stack size for each, and print an aggregation of which functions have the largest stack frame sizes at the end.'''
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parser = optparse.OptionParser(
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description=description, prog='ls', usage=usage)
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parser.add_option(
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'-v',
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'--verbose',
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action='store_true',
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dest='verbose',
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help='display verbose debug info',
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default=False)
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try:
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(options, args) = parser.parse_args(command_args)
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except:
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return
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target = debugger.GetSelectedTarget()
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process = target.GetProcess()
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frame_info = {}
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for thread in process:
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last_frame = None
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print("thread %u" % (thread.id))
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for frame in thread.frames:
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if last_frame:
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frame_size = 0
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if frame.idx == 1:
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if frame.fp == last_frame.fp:
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# No frame one the first frame (might be right at the
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# entry point)
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first_frame_size = 0
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frame_size = frame.fp - frame.sp
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else:
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# First frame that has a valid size
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first_frame_size = last_frame.fp - last_frame.sp
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print("<%#7x> %s" % (first_frame_size, last_frame))
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if first_frame_size:
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name = last_frame.name
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if name not in frame_info:
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frame_info[name] = first_frame_size
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else:
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frame_info[name] += first_frame_size
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else:
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# Second or higher frame
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frame_size = frame.fp - last_frame.fp
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print("<%#7x> %s" % (frame_size, frame))
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if frame_size > 0:
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name = frame.name
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if name not in frame_info:
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frame_info[name] = frame_size
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else:
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frame_info[name] += frame_size
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last_frame = frame
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print(frame_info)
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def __lldb_init_module(debugger, internal_dict):
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debugger.HandleCommand(
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"command script add -o -f stacks.stack_frames stack_frames")
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print("A new command called 'stack_frames' was added, type 'stack_frames --help' for more information.")
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