https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=1.45.2 2018-12-26T04:08:33+00:00 2018-12-26T04:08:33+00:00 Mark Rousskov mark.simulacrum@gmail.com 2018-12-25T15:56:47+00:00 urn:sha1:2a663555ddf36f6b041445894a8c175cd1bc718c 2017-10-18T14:54:35+00:00 Josh Stone jistone@redhat.com 2017-10-18T14:54:35+00:00 urn:sha1:6309a475f912f8237cba57458bc598c2fc8fc90b 2017-03-02T18:01:15+00:00 Philipp Oppermann dev@phil-opp.com 2017-02-14T20:39:42+00:00 urn:sha1:b44805875e3d2e7ac42052cf90d3d7dade90567c Tracking issue: https://github.com/rust-lang/rust/issues/40180 This calling convention can be used for definining interrupt handlers on 32-bit and 64-bit x86 targets. The compiler then uses `iret` instead of `ret` for returning and ensures that all registers are restored to their original values. Usage: ``` extern "x86-interrupt" fn handler(stack_frame: &ExceptionStackFrame) {…} ``` for interrupts and exceptions without error code and ``` extern "x86-interrupt" fn page_fault_handler(stack_frame: &ExceptionStackFrame, error_code: u64) {…} ``` for exceptions that push an error code (e.g., page faults or general protection faults). The programmer must ensure that the correct version is used for each interrupt. For more details see the [LLVM PR][1] and the corresponding [proposal][2]. [1]: https://reviews.llvm.org/D15567 [2]: http://lists.llvm.org/pipermail/cfe-dev/2015-September/045171.html