4be034e622
Improve backtrace formating while panicking. Fixes #37783. Done: - Fix alignment of file paths for better readability - `RUST_BACKTRACE=full` prints all the informations (current behaviour) - `RUST_BACKTRACE=(short|yes)` is the default and does: - Skip irrelevant frames at the beginning and the end - Remove function address - Remove the current directory from the absolute paths - Remove `::hfabe6541873` at the end of the symbols - `RUST_BACKTRACE=(0|no)` disables the backtrace. - `RUST_BACKTRACE=<everything else>` is equivalent to `short` for backward compatibility. - doc - More uniform printing across platforms. Removed, TODO in a new PR: - Remove path prefix for libraries and libstd Example of short backtrace: ```rust fn fail() { panic!(); } fn main() { let closure = || fail(); closure(); } ``` Short: ``` thread 'main' panicked at 'explicit panic', t.rs:2 Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. stack backtrace: 0: t::fail at ./t.rs:2 1: t::main::{{closure}} at ./t.rs:6 2: t::main at ./t.rs:7 ``` Full: ``` thread 'main' panicked at 'This function never returns!', t.rs:2 stack backtrace: 0: 0x558ddf666478 - std::sys:👿:backtrace::tracing:👿:unwind_backtrace::hec84c9dd8389cc5d at /home/yamakaky/dev/rust/rust/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 1: 0x558ddf65d90e - std::sys_common::backtrace::_print::hfa25f8b31f4b4353 at /home/yamakaky/dev/rust/rust/src/libstd/sys_common/backtrace.rs:71 2: 0x558ddf65cb5e - std::sys_common::backtrace::print::h9b711e11ac3ba805 at /home/yamakaky/dev/rust/rust/src/libstd/sys_common/backtrace.rs:60 3: 0x558ddf66796e - std::panicking::default_hook::{{closure}}::h736d216e74748044 at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:355 4: 0x558ddf66743c - std::panicking::default_hook::h16baff397e46ea10 at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:371 5: 0x558ddf6682bc - std::panicking::rust_panic_with_hook::h6d5a9bb4eca42c80 at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:559 6: 0x558ddf64ea93 - std::panicking::begin_panic::h17dc549df2f10b99 at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:521 7: 0x558ddf64ec42 - t::diverges::he6bc43fc925905f5 at /tmp/p/t.rs:2 8: 0x558ddf64ec5a - t::main::h0ffc20356b8a69c0 at /tmp/p/t.rs:6 9: 0x558ddf6687f5 - core::ops::FnOnce::call_once::hce41f19c0db56f93 10: 0x558ddf667cde - std::panicking::try::do_call::hd4c8c97efb4291df at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:464 11: 0x558ddf698d77 - __rust_try 12: 0x558ddf698c57 - __rust_maybe_catch_panic at /home/yamakaky/dev/rust/rust/src/libpanic_unwind/lib.rs:98 13: 0x558ddf667adb - std::panicking::try::h2c56ed2a59ec1d12 at /home/yamakaky/dev/rust/rust/src/libstd/panicking.rs:440 14: 0x558ddf66cc9a - std::panic::catch_unwind::h390834e0251cc9af at /home/yamakaky/dev/rust/rust/src/libstd/panic.rs:361 15: 0x558ddf6809ee - std::rt::lang_start::hb73087428e233982 at /home/yamakaky/dev/rust/rust/src/libstd/rt.rs:57 16: 0x558ddf64ec92 - main 17: 0x7fecb869e290 - __libc_start_main 18: 0x558ddf64e8b9 - _start 19: 0x0 - <unknown> ``` |
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|---|---|---|
| .. | ||
| ext | ||
| net | ||
| syscall | ||
| args.rs | ||
| backtrace.rs | ||
| condvar.rs | ||
| env.rs | ||
| fast_thread_local.rs | ||
| fd.rs | ||
| fs.rs | ||
| memchr.rs | ||
| mod.rs | ||
| mutex.rs | ||
| os.rs | ||
| os_str.rs | ||
| path.rs | ||
| pipe.rs | ||
| process.rs | ||
| rand.rs | ||
| rwlock.rs | ||
| stack_overflow.rs | ||
| stdio.rs | ||
| thread.rs | ||
| thread_local.rs | ||
| time.rs | ||