[llvm-dev] PSA: the future of compiler-rt’s Scudo (original) (raw)

Alex Bradbury via llvm-dev llvm-dev at lists.llvm.org
Wed Jan 16 01:15:36 PST 2019

On Tue, 15 Jan 2019 at 10:41, David Chisnall via llvm-dev <llvm-dev at lists.llvm.org> wrote:

On 14/01/2019 21:56, Kostya Kortchinsky via llvm-dev wrote: > An early plan was to move to our own googlesource repository (or the > like), but Chandler suggested we stay in compiler-rt, as a separate > directory that could be a slice of the new git monorepo. This appeared > to be acceptable to everybody involved (Chandler, Kostya S., Petr, > Roland, Julia), and is now the plan of record. Once the standalone > version is in, the non-standalone Scudo will likely be deprecated, > although this part hasn’t been formalized yet. So now we have a project that is loosely coupled to LLVM, can be built without any other parts of LLVM, can be built as part of another shared library that takes no dependencies on LLVM, will have contributors that do not contribute to the rest of LLVM, but requires a clone of the entire LLVM project to be able to access? This is precisely the use case that caused many objections to the everything-in-the-monorepo model.

FWIW, partial-clone support in git is under active development. git clone --filter was introduced in 2.19 with further improvements in 2.20. It will take a while to be fully fleshed out and support to be added to public servers, but in time this should address concerns about large clones needed for small sub-projects. <https://www.git-scm.com/docs/partial-clone>

Best,

Alex

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