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f20738dfb9
This test is supposed to ensure that full backtraces are used for ICEs.
But it doesn't actually do that -- the filtering done cannot distinguish
between a full backtrace versus a short backtrace.
So this commit changes the filtering to preserve the existence of
`__rust_{begin,end}_short_backtrace` markers, which only appear in full
backtraces. This change means the test now tests what it is supposed to
test.
Also, the existing filtering included a rule that excluded any line
starting with two spaces. This was too strong because it filtered out
some parts of the error message. (This was not a showstopper). It was
also not strong enough because it didn't work with three digit stack
frame numbers, which just started seeing after upgrading my Ubuntu
distro to 23.04 machine (this *was* a showstopper).
So the commit replaces that rule with two more precise rules, one for
lines with stack frame numbers, and one for "at ..." lines.
22 lines
917 B
Rust
22 lines
917 B
Rust
// unset-rustc-env:RUST_BACKTRACE
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// compile-flags:-Z treat-err-as-bug=1
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// error-pattern:stack backtrace:
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// failure-status:101
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// ignore-msvc
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// normalize-stderr-test "note: .*" -> ""
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// normalize-stderr-test "thread 'rustc' .*" -> ""
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// normalize-stderr-test " +\d+:.*__rust_begin_short_backtrace.*" -> "(begin_short_backtrace)"
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// normalize-stderr-test " +\d+:.*__rust_end_short_backtrace.*" -> "(end_short_backtrace)"
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// normalize-stderr-test " +\d+:.*\n" -> ""
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// normalize-stderr-test " +at .*\n" -> ""
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//
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// This test makes sure that full backtraces are used for ICEs when
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// RUST_BACKTRACE is not set. It does this by checking for the presence of
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// `__rust_{begin,end}_short_backtrace` markers, which only appear in full
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// backtraces. The rest of the backtrace is filtered out.
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//
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// Ignored on msvc becaue the `__rust_{begin,end}_short_backtrace` symbols
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// aren't reliable.
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fn main() { missing_ident; }
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