From 5bdc56c00cfc5d675e628e346e493bd619aed46f Mon Sep 17 00:00:00 2001 From: Hugues de Valon Date: Sun, 24 Jan 2021 17:15:05 +0000 Subject: [PATCH] Add a new ABI to support cmse_nonsecure_call This commit adds a new ABI to be selected via `extern "C-cmse-nonsecure-call"` on function pointers in order for the compiler to apply the corresponding cmse_nonsecure_call callsite attribute. For Armv8-M targets supporting TrustZone-M, this will perform a non-secure function call by saving, clearing and calling a non-secure function pointer using the BLXNS instruction. See the page on the unstable book for details. Signed-off-by: Hugues de Valon --- src/abi/mod.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/src/abi/mod.rs b/src/abi/mod.rs index 6a025f2e88a..b2647e6c8d3 100644 --- a/src/abi/mod.rs +++ b/src/abi/mod.rs @@ -28,6 +28,7 @@ fn clif_sig_from_fn_abi<'tcx>( Conv::X86_64SysV => CallConv::SystemV, Conv::X86_64Win64 => CallConv::WindowsFastcall, Conv::ArmAapcs + | Conv::CCmseNonSecureCall | Conv::Msp430Intr | Conv::PtxKernel | Conv::X86Fastcall