[llvm-dev] Can I build llvm with only a handful of source files compiled for debug?

[David Blaikie via llvm-dev]

Are you already using split DWARF & still having resource constraint
problems? (oh, you could also compress debug info,
-Wa,-compress-debug-sections)



On Wed, Aug 14, 2019 at 12:00 PM Praveen Velliengiri <
praveenvelliengiri at gmail.com> wrote:

> Actually, I have same question, If llvm build provides a option similar to
> that, it will be lot more easier for people doing development in relatively
> less (compute, storage) PC's.
>
>
> On Thu, 15 Aug 2019 at 00:22, David Blaikie via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> Nothing supported, though might not be too hard to do by hand.
>>
>> If you're having long link times, lots of disk usage, and slow gdb
>> startup time I'd recommend enabling split DWARF (LLVM_USE_SPLIT_DWARF=ON,
>> and CMAKE_EXE_LINKER_FLAGS_*=-Wl,-gdb-index in cmake) if you haven't
>> already.
>>
>> On Wed, Aug 14, 2019 at 11:40 AM Robert Henry via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>
>>> In order to minimize edit/compile/debug turn time, is there a way to
>>> compile llvm tools so that the majority of the files are compiled as if for
>>> release (eg, no debug symbols), and only the handful of files that I have
>>> touched are compiled for debugging? This will reduce the load on the file
>>> system, linker and gdb tremendously.  At present, AFAICT, it's all or
>>> nothing.
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>>> llvm-dev at lists.llvm.org
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