Difference between revisions of "CDT/Archive/cdt-debug-feature-parity-effort"

Revision as of 10:00, 30 April 2010

Email discussions (February 2010) about the CDT's default debugger integration has led to the fact that it would be nice to switch the default to DSF-GDB for Helios, but that we need to get closer to feature-parity with CDI-GDB.

We also agree that new debugging features are not going to be done for CDI, so it would be good to start building momentum for DSF-GDB so as to get more contributions and get the whole CDT debugging to continue getting more new features. This will also benefit any DSF-based integration as DSF will be given more attention.

A list of DSF-GDB features can be found here.

So, we are attempting to resolve the feature-parity bugs tagged [cdi]. This page documents which bugs are still open and if anyone has offered to tackle them.

Total list of bugs for feature-parity

List of bugs with [cdi] tag that are still open is here

Bugs still to be taken by someone

Parity bugs that seem important

These represent important things that work in CDI-GDB but don't in DSF-GDB. In order for CDT 7.0 to ship with DSF-GDB as the default debugger, most if not all of these should be addressed.

• Bug 308385 [bp] [cdi] Breakpoints created via the GDB console are not recognized in Eclipse
• Bug 309704 [bkpt][cdi] DSF-GDB lacks ability to stop on load library events
• Bug 311118 [launch][cdi] Attach does not work with MinGW gdb 7.0
• Bug 305385 [debug view][cdi] The pid of the inferior is not set pre-GDB 7.0

Bugs marked major and critical on DSF bugs not part of parity

These bugs are not unique to DSF-GDB but they're very serious issues. A debugger tools vendor looking to adopt CDT might consider these a deal-killer. As such, these should be addressed before minor CDI parity issues. If you think one of these bugs is NOT a major/critical issue, post your justification in the bugzilla report and remove the entry from this page.

• Bug 250834 [number format detail] IllegalMonitorStateException in the number format detail pane
• Bug 256311 [number format detail] IllegalMonitorStateException seen occasionally
• Bug 281970 [launch] DSF launcher configurations mess up run mode launching
• Bug 308835 Multi-thread debugging in regular stop-mode with gdb 6.8 is not working
• Bug 231883 [console][cdi] Inferior does not print to console when a PTY is not available

Parity bugs that seem minor

These are things that "work" in CDI-GDB but do not work reliably, are rarely utilized, or simply aren't very serious issues. These will not be given much weight when deciding whether or not DSF-GDB is worthy of replacing CDI-GDB as the default debugger in CDT 7.0.

• Bug 267209 [launch][cdi] Refresh project when launch process terminates
• Bug 271795 [debug view] [cdi] Inferior should be visible, and shown terminated in post mortem launch
• Bug 293832 [variables][cdi] wrong display of variable values with GDB DSF
• Bug 298336 [expressions] [cdi] Expression view flickers when switching between stack frames
• Bug 306011 [debug view][wp][cdi] Debug view should show old/new value when wp is hit
• Bug 309032 [mem][cdi] Need APIs to support memory pages (or memory spaces)
• Bug 249220 [signals][cdi] Add support for the Signals view.
• Bug 235747 [registers][cdi] Allow user to edit the register groups.

Bugs that have been completed

• Bug 159955 [source lookup][cdi] nice "source not found" editor
• Bug 202346 [launch][cdi] Implement launch for post-mortem/core debugging.
• Bug 202353 [launch][cdi] Add support for options in CDT "debugger" tab.
• Bug 233230 [run control][cdi] Run to Line action should be supported
• Bug 249227 [console][cdi] Add support for "verbose" tracing of MI commands in console
• Bug 282924 [breakpoints][cdi] Breakpoint install marker not handled properly for multiple launches
• Bug 302629 [breakpoints][cdi] Add support for filtering of breakpoints based on selected debug target in DSF-GDB debugger
• Bug 302324 [disassembly][runcontrol][cdi] RunToLine operation is not supported in DSF Disassembly view
• Bug 249162 [run control][cdi] Add support for "Set PC to here" operation.
• Bug 249165 [run control][cdi] Add support for "Resume at Line" action
• Bug 274951 [cdi] Add Watch action to C/C++ Editor
• Bug 300096 [expressions][run control][cdi] "DSF is missing certain debug actions from editor's context menu"
• Bug 249169 [detail][cdi] Add support for alternative expression evaluation in detail pane.
• Bug 275238 [debugger][cdi] Pretty print stl gdb and eclipse cdt don't play well
• Bug 202354 [launch][cdi] Support Environment tab in local launch
• Bug 248606 [menu][breakpoints][cdi] Add support for toggling watchpoints in the variables and expressions views.
• Bug 242943 [breakpoints] [cdi] While GDB is running, we cannot make breakpoint commands
• Bug 280607 [debug view][commands] CLIInfoThreadsInfo parsing tied to LWP
• Bug 302597 [console][commands][cdi] Handle missing stopped event should be handled better
• Bug 225996 [run control][debug view][cdi] Threads are listed in reverse order.
• Bug 219202 [variables][cdi] Variables view should use icons to represent types.
• Bug 304588 [variables][cdi] Expression service returns wrong number of children for complex structures
• Bug 249223 [signals][cdi] Add support for "Resume without signal" action.
• Bug 285907 [launch] Should GdbLaunchDelegate use AbstractCLaunchDelegate?
• Bug 248593 [launch][cdi] Add a JTAG-specific launch.
• Bug 248587 [breakpoints][cdi] Support "Event' Breakpoints.
• Bug 307614 [variables] Variable view may not show local variables with gdb 7.x
• Bug 308540 [expressions][update policy][cdi] Disabled expressions are still evaluated
• Bug 269927 [console] [cdi] Allow to save console to a file
• Bug 248610 [menu][memory][cdi] Add a menu action to open memory view for a given variable.
• Bug 223154 [console] Application writing a lot to the output deadlock.
• Bug 308091 [debug view][cdi] Show address in the stack frame's label
• Bug 274872 [source lookup] Repeated '<unknow>' editor
• Bug 234426 [source lookup] If a stack frame with no source is selected, an empty editor showing "Debug" in title is brought up.
• Bug 248627 [debug view] [cdi] Add an option to show full paths for the stack frame source location.
• Bug 280631 [debug view] Thread list in Debug view not updated with non-Linux target
• Bug 309234 [debug view][cdi] DSF not as helpful as CDI on SEGV

Bugs people have already said they will work on

Ken Ryall (Nokia)

John Cortell (Freescale)

Randy Rohrbach (Windriver)

• Bug 207582 [variables][expressions][cdi] In views, chirldren of arrays should be grouped when more than 100

Pawel Piech (Windriver)

• Bug 219040 [variables][cdi] Variables view should show globals (or should it?)
• Bug 269101 [variables][cdi] In no-columns mode, it's impossible to change the a variable's value.
• Bug 159958 [symbols][cdi] Integrate symbols service with CDT modules view.
• Bug 302628 [breakpoints][cdi] Implement linking of active debug context with selection in Breakpoints view.

Marc-Andre Laperle

Marc Khouzam (Ericsson)

• Bug 304096 [run control][cdi] Interrupting a Windows target does not always work
• Bug 248595 [breakpoints][cdi] - Add support pending breakpoints introduced in GDB 6.8.
• Bug 264895 [console][cdi] Visible console should match debug selection

Andy Jin (QNX)

Navid Mehregani (Texas Instruments)

Ed Swartz (Nokia)

• Bug 219203 [variables][cdi] Variables view should allow variables to be cast to a type.

Stephen Chong (Nokia)

People contributing through testing

Anna Dushistova (Mentor Graphics)

Sergey Prigogin (Google)