Enable RISC-V atomic compare and swap #57925
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From what I can see the LLVM submodule has not been updated in the past 6 weeks. It doesn’t seem like this should be landed before an LLVM update, but I would be fine with merging this if this PR updated the LLVM submodule as well... |
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@bors r+ |
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📌 Commit 607c543 has been approved by |
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r? @nagisa You r+ it, you own it ;) |
Centril
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Jan 27, 2019
Enable RISC-V atomic compare and swap Fixes rust-lang#56564
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Enable RISC-V atomic compare and swap Fixes #56564
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☀️ Test successful - checks-travis, status-appveyor |
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Nov 12, 2019
…ures A pretty awful and very forced port of the cortex-m linked list allocator. The main issue is that the RiscV runtime doesn't seem to support atomic boolean swaps, which means the Mutex implementation won't work. Pulled in a Mutex implementation and lied to the system that the mutex is always available. This will get us through initial board bring-up but someone with real OS knowledge needs to fix this down the road....
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Fixes #56564