colno: u32
}
+fn func_a() -> Box<[*mut ()]> { func_b::<u8>() }
+fn func_b<T>() -> Box<[*mut ()]> { func_c() }
+fn func_c() -> Box<[*mut ()]> { unsafe { miri_get_backtrace() } }
+
fn main() {
- let frames = unsafe { miri_get_backtrace() };
+ let mut seen_main = false;
+ let frames = func_a();
for frame in frames.into_iter() {
let miri_frame = unsafe { miri_resolve_frame(*frame, 0) };
let name = String::from_utf8(miri_frame.name.into()).unwrap();
let filename = String::from_utf8(miri_frame.filename.into()).unwrap();
- eprintln!("{}:{}:{} ({})", filename, miri_frame.lineno, miri_frame.colno, name);
+
+ // Print every frame to stderr.
+ let out = format!("{}:{}:{} ({})", filename, miri_frame.lineno, miri_frame.colno, name);
+ eprintln!("{}", out);
+ // Print the 'main' frame (and everything before it) to stdout, skipping
+ // the printing of internal (and possibly fragile) libstd frames.
+ if !seen_main {
+ println!("{}", out);
+ seen_main = name == "main";
+ }
}
}
-$DIR/backtrace-api.rs:18:27 (main)
+$DIR/backtrace-api.rs:19:42 (func_c)
+$DIR/backtrace-api.rs:18:36 (func_b::<u8>)
+$DIR/backtrace-api.rs:17:33 (func_a)
+$DIR/backtrace-api.rs:23:18 (main)
RUSTLIB/src/rust/library/core/src/ops/function.rs:LL:COL (<fn() as std::ops::FnOnce<()>>::call_once - shim(fn()))
RUSTLIB/src/rust/library/std/src/sys_common/backtrace.rs:LL:COL (std::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>)
RUSTLIB/src/rust/library/std/src/rt.rs:LL:COL (std::rt::lang_start::<()>::{{closure}}#0)
--- /dev/null
+$DIR/backtrace-api.rs:19:42 (func_c)
+$DIR/backtrace-api.rs:18:36 (func_b::<u8>)
+$DIR/backtrace-api.rs:17:33 (func_a)
+$DIR/backtrace-api.rs:23:18 (main)