Fixes for x86-interrupt
calling convention
#242
Merged
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It looks like the
x86-interrupt
calling convention passes theInterruptStackFrame
by value, not by reference: rust-lang/rust#40180 (comment). Apparently, by-ref worked as well before Rust upgraded to LLVM 12, but it no longer works on the latest nightlies. This pull request fixes the IDT to require a by-value stack frame parameter.Since modifying the interrupt stack frame now requires a volatile write, this PR changes the return type of the
InterruptStackFrame::as_mut
function to aVolatile<_>
reference.This is a breaking change.