CDT: Latest & Greatest Tooling for C/C++ Jonah Graham, Kichwa - - PowerPoint PPT Presentation

CDT: Latest & Greatest Tooling for C/C++

Jonah Graham, Kichwa Coders EclipseCon France 2016

CDT: The Open Source IDE for C/C++

• Demo of Features
• New & Noteworthy
• Future Plans

CDT Indexer: 5 facts

• 1. CDT index is over 10 years old
• 2. CDT’s indices hold a complete model of the

code.

• 3. The model is paged in from disk lazily.
• 4. Most operations are faster in CDT than in JDT.
• 5. The new faster JDT Index is based on CDT’s

index

(Reference: https://docs.google.com/document/d/1w3-ufZyISbqH8jxYv689Exjm0haAGufdcSvEAgl2HQ4/edit#)

DEMO

ALSO NEW & NOTEWORTHY

Removal of CDI

If you are still using CDI...

• 1. Migrate to DSF

– More powerful, asynchronous debug framework

• 2. Consider maintaining your own fork of CDI

– It’s all open source!

• Reach out to the community for help (cdt-dev forum)
• Reach out to Kichwa Coders to discuss migration
• ptions

Improved Source Lookup

• Now using gdb’s ‘set-substitute-path’ backend

to handle source mappings

• Avoids this problem:

Improved Source Lookup

• Users can now configure a path mapping

which means source lookup will always work

Use Cases– Linux

Use Case Mars Neon Compilation path is absolute and canonical (no ..) gcc -o elf /path/to/file.c

 

Compilation path is absolute and non-canonical (contains ..) gcc -o elf /path/other/../to/file.c

 

Compilation path is relative and canonical (no ..) gcc -o elf to/file.c

 

Compilation path is relative and non-canonical (contains ..) gcc -o elf ../to/file.c

 

Use Cases– MingGW Compile and Linux Debug

Use Case Mars Neon Compilation path is absolute and canonical (no ..) gcc -o elf /path/to/file.c

 

Compilation path is absolute and non-canonical (contains ..) gcc -o elf /path/other/../to/file.c

 

Compilation path is relative and canonical (no ..) gcc -o elf to/file.c

 

Compilation path is relative and non-canonical (contains ..) gcc -o elf ../to/file.c

 

Use Cases– MingGW Compile and Linux Debug – UNC Paths

Use Case Mars Neon Compilation path is UNC and canonical gcc -o elf \\machine\share\path\to\file.c

 

Compilation path is UNC and non-canonical gcc -o elf \\machine\share\path\other\..\to\ file.c

 

Use Cases– Cygwin

Use Case Mars Neon Compilation path is absolute and canonical (no ..) gcc -o elf /path/to/file.c

 

Compilation path is absolute and non-canonical (contains ..) gcc -o elf /path/other/../to/file.c

 

Compilation path is relative and canonical (no ..) gcc -o elf to/file.c

 

Compilation path is relative and non-canonical (contains ..) gcc -o elf ../to/file.c

 

Use Cases – Cygwin – UNC Paths

Use Case Mars Neon Compilation path is UNC and canonical gcc -o elf \\machine\share\path\to\file.c

 

Compilation path is UNC and non-canonical gcc -o elf \\machine\share\path\other\..\to\ file.c

 

CDT: ONGOING FEATURES

CDT Docker Support

Full GDB Console

Full GDB command line behaviour in Eclipse Based on GDB 7.12 for CDT 9.1

Groups Threads

• control groups of

elements

• Better support for

multicore e.g

– Step groups of threads

• r processes

– Set breakpoint on a subset of thread – Resume any set of multiple cores

Macro Support

• Visual Studio like Macro

behaviour

• Based on EASE project
• Using Python
• Allows for future

Python GDB Integration

• Works with launch to

customize multicore debug launches

New Build System

• In the works
• Improved support for CMake, QT
• Ongoing discussions

Improved Multicore Breakpoints

• Show where breakpoint actually applies i.e which

target, core, thread, etc

• Allow users to easily control where breakpoints

should apply

• Persistence of breakpoints applicability
• Support for multiple breakpoints at the same

location configured differently

• Synchronization with the GDB console should

work in all cases

• Get Involved: Call on the 14th June

Conclusions

CDT has lots of great features for C/C++ development at scale. More great features coming soon. It’s a good time to get involved with the community!