5dbd97de3d
This commit implements stack probes on x86/x86_64 using the freshly landed support upstream in LLVM. The purpose of stack probes here are to guarantee a segfault on stack overflow rather than having a chance of running over the guard page already present on all threads by accident. At this time there's no support for any other architecture because LLVM itself does not have support for other architectures.
24 lines
760 B
Rust
24 lines
760 B
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-arm
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// ignore-wasm
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// ignore-emscripten
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// ignore-windows
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// no-system-llvm
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// compile-flags: -C no-prepopulate-passes
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#![crate_type = "lib"]
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#[no_mangle]
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pub fn foo() {
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// CHECK: @foo() unnamed_addr #0
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// CHECK: attributes #0 = { {{.*}}"probe-stack"="__rust_probestack"{{.*}} }
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}
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