Pwndbg: Improve scroll functionality.

[kmskrishna]

Okay, I know that the name is too vague. But looking at the screenshot should give you a clear view of what I want to say. After you execute next command in peda-gdb, It automatically aligns the top part of the terminal to the registers part, So it is much easier to follow a register or stack. In pwndbg, It does not auto align making it confusing at times for me. I hope you understood my problem.

[zachriggle]

They are aligned to the bottom of the terminal ;-)

[kmskrishna]

Is there no way you guys can implement this functionality? I really like pwndbg and this is the only thing that is confusing me because I was used to peda-gdb. Come on guys I request you people to implement it. :smiley:

[disconnect3d]

Isn't it just a matter of clearing screen before sending all of the output/tui?

[kmskrishna]

@disconnect3d I believe so.

[zachriggle]

Turns out there's actually an option for this already, thanks @anthraxx! (https://github.com/pwndbg/pwndbg/commit/6e2f8f7b)

pwndbg> config
Name                       Value (Def)       Documentation
----------------------------------------------------------
auto-save-search           False             automatically pass --save to "search" command
context-clear-screen       False             whether to clear the screen before printing the context
debug-events               False             display internal event debugging info
emulate                    True              Unicorn emulation of code near the current instruction
hexdump-bytes              64                number of bytes printed by hexdump command
hexdump-width              16                line width of hexdump command
ida-rpc-host               '127.0.0.1'       ida xmlrpc server address
ida-rpc-port               8888              ida xmlrpc server port
left-pad-disasm            True              whether to left-pad disassembly
show-flags                 False             whether to show flags registers
show-retaddr-reg           False             whether to show return address register
telescope-lines            8                 number of lines to printed by the telescope command
You can set config variable with `set <config-var> <value>`
You can generate configuration file using `configfile` - then put it in your .gdbinit after initializing pwndbg

pwndbg> set context-clear-screen on

[kmskrishna]

I have no words to express my gratitude. :smiley: