backport 1.10: create phantom task for GC threads (#53815) #54632
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A common idiom used throughout the codebase is to get a pointer to thread-local-state through `jl_current_task->ptls`. Create a phantom task for GC threads so that we can make use of this idiom when running in the GC threads as well. Idea originally suggested by @vchuravy, bugs are mine. (cherry picked from commit 9636ef7)
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(I would have happily provided such a PR, too, just to save you work. Apologies if I should just have done that, I am not sure what the right "protocol" is -- you are already doing a ton of work and I don't mean to be a burden) |
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A common idiom used throughout the codebase is to get a pointer to thread-local-state through
jl_current_task->ptls.Create a phantom task for GC threads so that we can make use of this idiom when running in the GC threads as well.
Idea originally suggested by @vchuravy, bugs are mine.
(cherry picked from commit 9636ef7)