From 54ebb9d4897c2f372e3b20f833c2ea4eaf656a0e Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Mon, 2 Sep 2024 15:45:06 +0200 Subject: Do not request sanitizers for naked functions Naked functions can only contain inline asm, so any instrumentation inserted by sanitizers is illegal. Don't request it. Fixes https://github.com/rust-lang/rust/issues/129224. --- tests/codegen/naked-asan.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 tests/codegen/naked-asan.rs (limited to 'tests/codegen') diff --git a/tests/codegen/naked-asan.rs b/tests/codegen/naked-asan.rs new file mode 100644 index 00000000000..a45b95780f7 --- /dev/null +++ b/tests/codegen/naked-asan.rs @@ -0,0 +1,22 @@ +// Make sure we do not request sanitizers for naked functions. + +//@ only-x86_64 +//@ needs-sanitizer-address +//@ compile-flags: -Zsanitizer=address -Ctarget-feature=-crt-static + +#![crate_type = "lib"] +#![no_std] +#![feature(abi_x86_interrupt, naked_functions)] + +// CHECK: define x86_intrcc void @page_fault_handler(ptr {{.*}}%0, i64 {{.*}}%1){{.*}}#[[ATTRS:[0-9]+]] { +// CHECK-NOT: memcpy +#[naked] +#[no_mangle] +pub extern "x86-interrupt" fn page_fault_handler(_: u64, _: u64) { + unsafe { + core::arch::asm!("ud2", options(noreturn)); + } +} + +// CHECK: #[[ATTRS]] = +// CHECK-NOT: sanitize_address -- cgit 1.4.1-3-g733a5