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From: "michaelwoerister at posteo dot net" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug tdep/17521] New: On Windows-x86_64 GDB runs into infinite loop when entering small functions generated by RUSTC/LLVM
Date: Wed, 29 Oct 2014 15:16:00 -0000	[thread overview]
Message-ID: <bug-17521-4717@http.sourceware.org/bugzilla/> (raw)

https://sourceware.org/bugzilla/show_bug.cgi?id=17521

            Bug ID: 17521
           Summary: On Windows-x86_64 GDB runs into infinite loop when
                    entering small functions generated by RUSTC/LLVM
           Product: gdb
           Version: 7.8
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tdep
          Assignee: unassigned at sourceware dot org
          Reporter: michaelwoerister at posteo dot net

Created attachment 7861
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7861&action=edit
Source+Executable for reproducing - use 'rb tiny_func' to set breakpoint and
then 'run'

Using the GDB version coming with [1], GDB seems to get stuck when entering
some small functions generated by the Rust compiler. Sample backtraces [2] seem
to suggest that control flow never leaves the
`amd64_windows_frame_decode_insns()` function.

Attached you can find a small program for reproducing the bug. Just set a
breakpoint with `rb tiny_func` and then `run`. 

Feel free to contact me if you have any further questions.

[1]
http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/4.9.1/threads-win32/seh/x86_64-4.9.1-release-win32-seh-rt_v3-rev2.7z/download

[2] https://github.com/rust-lang/rust/issues/17540#issuecomment-60264838

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             reply	other threads:[~2014-10-29 15:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-29 15:16 michaelwoerister at posteo dot net [this message]
2014-11-10 14:28 ` [Bug tdep/17521] " cvs-commit at gcc dot gnu.org
2014-11-12  4:52 ` cvs-commit at gcc dot gnu.org
2014-11-17 17:06 ` cvs-commit at gcc dot gnu.org
2020-04-01 18:11 ` tromey at sourceware dot org

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