From bf61641e9f30927d751d98b52f00a6685c79c347 Mon Sep 17 00:00:00 2001 From: Daniel Micay Date: Fri, 22 Nov 2013 10:12:56 -0500 Subject: add a breakpoint intrinsic for debugging This can be used to grab the attention of a debugger, and unlike `abort` execution can be resumed. --- src/libstd/unstable/intrinsics.rs | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/libstd') diff --git a/src/libstd/unstable/intrinsics.rs b/src/libstd/unstable/intrinsics.rs index f0b94c10fdc..ea3ed10da4e 100644 --- a/src/libstd/unstable/intrinsics.rs +++ b/src/libstd/unstable/intrinsics.rs @@ -176,6 +176,10 @@ extern "rust-intrinsic" { /// Abort the execution of the process. pub fn abort() -> !; + /// Execute a breakpoint trap, for inspection by a debugger. + #[cfg(not(stage0))] + pub fn breakpoint(); + /// Atomic compare and exchange, sequentially consistent. pub fn atomic_cxchg(dst: &mut int, old: int, src: int) -> int; /// Atomic compare and exchange, acquire ordering. -- cgit 1.4.1-3-g733a5