Remove User Interrupts, Relax Requirements #106
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These have been removed from both GCC and Clang, because the underlying N extension they were based on was never ratified. This change also relaxes some of the requirements, to allow vendor interrupt modes, and combinations of (compatible) interrupt modes, which matches the LLVM implementation of SiFive interrupts.
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Relevant to @kito-cheng @topperc I think. |
topperc
approved these changes
May 12, 2025
kito-cheng
approved these changes
Jun 5, 2025
cmuellner
approved these changes
Jun 5, 2025
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@lenary has highlighted that GCC still supports user-level interrupt handlers (see #116 (comment)). I created a GCC patch for this (https://gcc.gnu.org/pipermail/gcc-patches/2025-July/690574.html). |
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These have been removed from both GCC and Clang, because the underlying N extension they were based on was never ratified.
This change also relaxes some of the requirements, to allow vendor interrupt modes, and combinations of (compatible) interrupt modes, which matches the LLVM implementation of SiFive interrupts.