-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
//! Panic support for libcore
//!
//! The core library cannot define panicking, but it does *declare* panicking. This
use fmt;
use panic::{Location, PanicInfo};
-#[cold] #[inline(never)] // this is the slow path, always
+#[cold]
+// never inline unless panic_immediate_abort to avoid code
+// bloat at the call sites as much as possible
+#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
#[lang = "panic"]
pub fn panic(expr_file_line_col: &(&'static str, &'static str, u32, u32)) -> ! {
+ if cfg!(feature = "panic_immediate_abort") {
+ unsafe { super::intrinsics::abort() }
+ }
+
// Use Arguments::new_v1 instead of format_args!("{}", expr) to potentially
// reduce size overhead. The format_args! macro uses str's Display trait to
// write expr, which calls Formatter::pad, which must accommodate string
panic_fmt(fmt::Arguments::new_v1(&[expr], &[]), &(file, line, col))
}
-#[cold] #[inline(never)]
+#[cold]
+#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
#[lang = "panic_bounds_check"]
fn panic_bounds_check(file_line_col: &(&'static str, u32, u32),
index: usize, len: usize) -> ! {
+ if cfg!(feature = "panic_immediate_abort") {
+ unsafe { super::intrinsics::abort() }
+ }
+
panic_fmt(format_args!("index out of bounds: the len is {} but the index is {}",
len, index), file_line_col)
}
-#[cold] #[inline(never)]
+#[cold]
+#[cfg_attr(not(feature="panic_immediate_abort"),inline(never))]
+#[cfg_attr( feature="panic_immediate_abort" ,inline)]
pub fn panic_fmt(fmt: fmt::Arguments, file_line_col: &(&'static str, u32, u32)) -> ! {
+ if cfg!(feature = "panic_immediate_abort") {
+ unsafe { super::intrinsics::abort() }
+ }
+
// NOTE This function never crosses the FFI boundary; it's a Rust-to-Rust call
#[allow(improper_ctypes)] // PanicInfo contains a trait object which is not FFI safe
extern "Rust" {