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https://github.com/rust-lang/rust
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50 lines
2 KiB
Rust
50 lines
2 KiB
Rust
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// Test that when debug info only includes line tables that backtrace is still generated
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// successfully.
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// Original test:
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// <https://github.com/rust-lang/backtrace-rs/tree/6fa4b85b9962c3e1be8c2e5cc605cd078134152b/crates/line-tables-only>.
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// Part of <https://github.com/rust-lang/rust/issues/122899> porting some backtrace tests to rustc.
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// This test diverges from the original test in that it now uses a Rust library auxiliary because
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// rustc now has `-Cdebuginfo=line-tables-only`.
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// ignore-tidy-linelength
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//@ run-pass
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//@ compile-flags: -Cstrip=none -Cdebuginfo=line-tables-only
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//@ ignore-android FIXME #17520
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//@ ignore-fuchsia Backtraces not symbolized
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//@ needs-unwind
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//@ aux-build: line-tables-only-helper.rs
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#![feature(backtrace_frames)]
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extern crate line_tables_only_helper;
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use std::backtrace::Backtrace;
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fn assert_contains(
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backtrace: &Backtrace,
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expected_name: &str,
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expected_file: &str,
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expected_line: u32,
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) {
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// FIXME(jieyouxu): fix this ugly fragile test when `BacktraceFrame` has accessors like...
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// `symbols()`.
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let backtrace = format!("{:#?}", backtrace);
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eprintln!("{}", backtrace);
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assert!(backtrace.contains(expected_name), "backtrace does not contain expected name {}", expected_name);
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assert!(backtrace.contains(expected_file), "backtrace does not contain expected file {}", expected_file);
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assert!(backtrace.contains(&expected_line.to_string()), "backtrace does not contain expected line {}", expected_line);
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}
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fn main() {
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std::env::set_var("RUST_BACKTRACE", "1");
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let backtrace = line_tables_only_helper::capture_backtrace();
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// FIXME(jieyouxu): for some forsaken reason on i686-msvc `foo` doesn't have an entry in the
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// line tables?
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#[cfg(not(all(target_pointer_width = "32", target_env = "msvc")))]
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{
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assert_contains(&backtrace, "foo", "line-tables-only-helper.rs", 5);
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}
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assert_contains(&backtrace, "bar", "line-tables-only-helper.rs", 10);
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assert_contains(&backtrace, "baz", "line-tables-only-helper.rs", 15);
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}
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