rust/src/test/codegen/mainsubprogramstart.rs
Tom Tromey b037c5211b Emit DW_AT_main_subprogram
This changes rustc to emit DW_AT_main_subprogram on the "main" program.
This lets gdb suitably stop at the user's main in response to
"start" (rather than the library's main, which is what happens
currently).

Fixes #32620
r? michaelwoerister
2017-02-04 23:19:39 -07:00

30 lines
983 B
Rust

// Copyright 2016 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.
// The minimum LLVM version is set to 3.8, but really this test
// depends on a patch that is was committed to upstream LLVM before
// 4.0; and also backported to the Rust LLVM fork.
// ignore-tidy-linelength
// ignore-windows
// ignore-macos
// min-llvm-version 3.8
// compile-flags: -g -C no-prepopulate-passes
#![feature(start)]
// CHECK-LABEL: @main
// CHECK: {{.*}}DISubprogram{{.*}}name: "start",{{.*}}DIFlagMainSubprogram{{.*}}
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
return 0;
}