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rustc -Z debug-info is causing llvm assert failures #6814

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pnkfelix opened this issue May 29, 2013 · 3 comments
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rustc -Z debug-info is causing llvm assert failures #6814

pnkfelix opened this issue May 29, 2013 · 3 comments
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A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.

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@pnkfelix
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% pwd
/Users/pnkfelix/Dev/Mozilla/rust.git
% objdir/x86_64-apple-darwin/stage2/bin/rustc -Z debug-info src/test/run-pass/hello.rs
Assertion failed: (TheCU && "Unable to find compile unit!"), function beginFunction, file /Users/pnkfelix/Dev/Mozilla/rust.git/src/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp, line 1367.
Stack dump:
0. Running pass 'Function Pass Manager' on module 'hello.rc'.

  1. Running pass 'X86 Assembly / Object Emitter' on function '@_ZN4main16_113178cfcd612383_00E'
    Illegal instruction: 4

Might be related to #5836
@pnkfelix pnkfelix mentioned this issue May 29, 2013
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@pnkfelix
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Nominating for milestone #3, "feature complete."

Though if we expect any tools out there to make use of debug-info, then maybe we should be filing this under milestone #2: "backward compatible." (If I could some way to justify getting it into milestone #1, I would...)

@vadimcn vadimcn mentioned this issue Jun 14, 2013
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@jfager jfager mentioned this issue Jun 15, 2013
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bors added a commit that referenced this issue Jun 17, 2013
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auto merge of #7134 : vadimcn/rust/DIBuilder, r=jdm
4bf074c 
This commit fixes rustc's debug info generation and turns debug-info tests back on.

The old generator used to write out LLVM metadata directly, however it seems that debug metadata format is not stable and keeps changing from release to release.  So I wrapped LLVM's official debug info API - the DIBuilder class, and now rustc will use that.

One bit of old functionality that still doesn't work, is debug info for function arguments.  Someone more familiar with the compiler guts will need to look into that.

Also, unfortunately, debug info is still won't work on Windows,- due to a LLVM bug (http://llvm.org/bugs/show_bug.cgi?id=16249).

Resolves issues #5836, #5848, #6814
@pnkfelix
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Supposedly fixed by commit 4bf074c. I'll close after I check that.

@msullivan
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This was fixed.

flip1995 pushed a commit to flip1995/rust that referenced this issue Mar 11, 2021
@bors
Auto merge of rust-lang#6814 - hyd-dev:issue-6486, r=flip1995
8222d48 
Fix false positives on procedural macros of `missing_inline_in_public_items` lint

Fixes rust-lang#6486.

changelog: Fix false positives on procedural macros of `missing_inline_in_public_items` lint.
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A-debuginfo Area: Debugging information in compiled programs (DWARF, PDB, etc.) I-crash Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.
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