[Lldb-commits] [lldb] r300902 - Add an example command to toggle between disassembly-only and source mode.

[Pavel Labath via lldb-commits]

This is cool, I just did some assembly debugging yesterday, and wished it
was easier :)

On 20 April 2017 at 22:51, Jim Ingham via lldb-commits <
lldb-commits at lists.llvm.org> wrote:

> Author: jingham
> Date: Thu Apr 20 16:51:27 2017
> New Revision: 300902
>
> URL: http://llvm.org/viewvc/llvm-project?rev=300902&view=rev
> Log:
> Add an example command to toggle between disassembly-only and source mode.
>
> Sometimes you are debugging in source, but you really only want to see
> the disassembly.  That's easy to do but you have to set a few variables.
> This command toggles between your old values, and a disassembly only mode.
>
> Added:
>     lldb/trunk/examples/python/disassembly_mode.py
>
> Added: lldb/trunk/examples/python/disassembly_mode.py
> URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/examples/
> python/disassembly_mode.py?rev=300902&view=auto
> ============================================================
> ==================
> --- lldb/trunk/examples/python/disassembly_mode.py (added)
> +++ lldb/trunk/examples/python/disassembly_mode.py Thu Apr 20 16:51:27
> 2017
> @@ -0,0 +1,48 @@
> +""" Adds the 'toggle-disassembly' command to switch you into a
> disassembly only mode """
> +import lldb
> +
> +class DisassemblyMode:
> +    def __init__(self, debugger, unused):
> +        self.dbg = debugger
> +        self.interp = debugger.GetCommandInterpreter()
> +        self.store_state()
> +        self.mode_off = True
> +
> +    def store_state(self):
> +        self.dis_count = self.get_string_value("stop-disassembly-count")
> +        self.dis_display = self.get_string_value("stop-
> disassembly-display")
> +        self.before_count = self.get_string_value("stop-
> line-count-before")
> +        self.after_count = self.get_string_value("stop-line-count-after")
> +
> +    def get_string_value(self, setting):
> +        result = lldb.SBCommandReturnObject()
> +        self.interp.HandleCommand("settings show " + setting, result)
> +        value = result.GetOutput().split(" = ")[1].rstrip("\n")
> +        return value
> +
> +    def set_value(self, setting, value):
> +        result = lldb.SBCommandReturnObject()
> +        self.interp.HandleCommand("settings set " + setting + " " +
> value, result)
> +
> +    def __call__(self, debugger, command, exe_ctx, result):
> +        if self.mode_off:
> +            self.mode_off = False
> +            self.store_state()
> +            self.set_value("stop-disassembly-display","always")
> +            self.set_value("stop-disassembly-count", "8")
> +            self.set_value("stop-line-count-before", "0")
> +            self.set_value("stop-line-count-after", "0")
> +            result.AppendMessage("Disassembly mode on.")
> +        else:
> +            self.mode_off = True
> +            self.set_value("stop-disassembly-display",self.dis_display)
> +            self.set_value("stop-disassembly-count", self.dis_count)
> +            self.set_value("stop-line-count-before", self.before_count)
> +            self.set_value("stop-line-count-after", self.after_count)
> +            result.AppendMessage("Disassembly mode off.")
> +
> +    def get_short_help(self):
> +        return "Toggles between a disassembly only mode and normal source
> mode\n"
> +
> +def __lldb_init_module(debugger, unused):
> +    debugger.HandleCommand("command script add -c disassembly_mode.DisassemblyMode
> toggle-disassembly")
>
>
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