57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
// normalize-stderr-test ".*/(rust[^/]*|checkout)/library/" -> "RUSTLIB/"
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// normalize-stderr-test "RUSTLIB/(.*):\d+:\d+ "-> "RUSTLIB/$1:LL:COL "
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// normalize-stderr-test "::<.*>" -> ""
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#[inline(never)] fn func_a() -> Box<[*mut ()]> { func_b::<u8>() }
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#[inline(never)] fn func_b<T>() -> Box<[*mut ()]> { func_c() }
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macro_rules! invoke_func_d {
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() => { func_d() }
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}
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#[inline(never)] fn func_c() -> Box<[*mut ()]> { invoke_func_d!() }
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#[inline(never)] fn func_d() -> Box<[*mut ()]> { unsafe { miri_get_backtrace(0) } }
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fn main() {
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let mut seen_main = false;
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let frames = func_a();
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for frame in frames.into_iter() {
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let miri_frame = unsafe { miri_resolve_frame(*frame, 0) };
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let name = String::from_utf8(miri_frame.name.into()).unwrap();
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let filename = String::from_utf8(miri_frame.filename.into()).unwrap();
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if name == "func_a" {
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assert_eq!(func_a as *mut (), miri_frame.fn_ptr);
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}
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// Print every frame to stderr.
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let out = format!("{}:{}:{} ({})", filename, miri_frame.lineno, miri_frame.colno, name);
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eprintln!("{}", out);
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// Print the 'main' frame (and everything before it) to stdout, skipping
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// the printing of internal (and possibly fragile) libstd frames.
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if !seen_main {
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println!("{}", out);
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seen_main = name == "main";
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}
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}
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}
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// This goes at the bottom of the file so that we can change it
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// without disturbing line numbers of the functions in the backtrace.
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extern "Rust" {
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fn miri_get_backtrace(flags: u64) -> Box<[*mut ()]>;
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fn miri_resolve_frame(ptr: *mut (), flags: u64) -> MiriFrame;
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}
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#[derive(Debug)]
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#[repr(C)]
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struct MiriFrame {
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name: Box<[u8]>,
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filename: Box<[u8]>,
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lineno: u32,
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colno: u32,
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fn_ptr: *mut (),
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}
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