mirror of https://github.com/rust-lang/rust.git
64 lines
1.6 KiB
Rust
64 lines
1.6 KiB
Rust
//@ compile-flags:-Cstrip=none
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//@ run-fail
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//@ check-run-results
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//@ exec-env:RUST_BACKTRACE=1
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//@ needs-unwind
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//@ ignore-android FIXME #17520
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//@ ignore-openbsd no support for libbacktrace without filename
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//@ ignore-sgx Backtraces not symbolized
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//@ ignore-fuchsia Backtraces not symbolized
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//@ ignore-msvc the `__rust_{begin,end}_short_backtrace` symbols aren't reliable.
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// This is needed to avoid test output differences across std being built with v0 symbols vs legacy
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// symbols.
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//@ normalize-stderr: "begin_panic::<&str>" -> "begin_panic"
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// This variant occurs on macOS with `rust.debuginfo-level = "line-tables-only"` (#133997)
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//@ normalize-stderr: " begin_panic<&str>" -> " std::panicking::begin_panic"
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// And this is for differences between std with and without debuginfo.
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//@ normalize-stderr: "\n +at [^\n]+" -> ""
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#[inline(never)]
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fn __rust_begin_short_backtrace<T, F: FnOnce() -> T>(f: F) -> T {
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let result = f();
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std::hint::black_box(result)
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}
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#[inline(never)]
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fn __rust_end_short_backtrace<T, F: FnOnce() -> T>(f: F) -> T {
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let result = f();
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std::hint::black_box(result)
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}
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fn first() {
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__rust_end_short_backtrace(|| second());
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// do not take effect since we already has a inner call of __rust_end_short_backtrace
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}
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fn second() {
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__rust_end_short_backtrace(|| third());
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}
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fn third() {
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fourth(); // won't show up in backtrace
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}
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fn fourth() {
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fifth(); // won't show up in backtrace
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}
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fn fifth() {
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__rust_begin_short_backtrace(|| sixth());
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}
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fn sixth() {
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seven();
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}
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fn seven() {
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panic!("debug!!!");
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}
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fn main() {
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first();
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}
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