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[cdt-dev] Disassembly issues
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Hi
all,
To move forward with
the new disassembly implementation I need your feedback on the following
proposals and issues.
1. Management
of disassembly/source editors and source lookup
The only way to open
a disassembly editor window is to use the "Open Disassembly"
action from the Debug view's context menu or from the "Source Not Found"
editor.
Once the
disassembly editor is opened for a disassembly context it becomes the
default editor for all elements that expose the same debug context.
There are two
options on how to manage the source editors in this
case:
a. always try to
open the source editor in background if the source file is
available
b. do not try to
open the source editor. In this case to open it user has to close the
disassembly editor and double click on the corresponding stack
frame.
In both cases we
need to maintain the IP position in the source editor if it is open, which
means that we can not use the default ISourceDisplay adapter provided by the
platform :(
2. Stepping mode
selection
Currently there
is a toggle action "Instruction Mode" to switch between the source and
instruction modes. There have been requests to make the instruction mode default
when the disassembly view has focus (doesn't seem to work
anymore).
I would propose to
replace the "Instruction Mode" action by the dropdown menu with the
following choices:
a. "Context" - use
the instruction mode if the disassembly window is open, otherwise
use the source mode
b. "Source" - always
use the source mode.
c. "Instruction" -
always use the instruction mode
3. Preference
pages
As the content of
the disassembly viewer is provided by models the creation of preference
pages becomes a problem. It seems that we need one global page for the
preferences shared by all models and a special preference page for each model.
It could be confusing for the end users.
4. CDI
support
Currently, the CDI
interfaces for disassembly are duplicates of the disassembly related
gdb/mi commands. This is not sufficient to implement the
efficient "infinite" scrolling which is a big challenge for assemblers with
variable instruction size.
Does it make sense
to add an API extensions for the cases when some additional information
(like previous/next valid instruction address) is available from the
backend?
Comments?
Ideas?
Thanks,
Mikhail
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