https://issues.dlang.org/show_bug.cgi?id=24002
Issue ID: 24002
Summary: "The CodeView record is corrupted" heisenbug
Product: D
Version: D2
Hardware: x86_64
OS: Windows
Status: NEW
Keywords: DebugInfo, link-failure
Severity: blocker
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
Created attachment 1882
--> https://issues.dlang.org/attachment.cgi?id=1882&action=edit
Reproducer
Given certain inputs, dmd will produce output that lld-link refuses to consume,
failing with the message:
lld-link: error: codeview::mergeTypeAndIdRecords failed: The CodeView record is
corrupted.
Unfortunately it is difficult to reduce the exact inputs which trigger this
bug. It seems to be related to the size of the program being compiled, and
maybe things like exact alignment. It may be a buffer overflow that causes the
output to be corrupted only under certain conditions.
I am attaching an input which reliably reproduces the problem with DMD 2.101.0
for Windows, as obtainable from
https://downloads.dlang.org/releases/2.x/2.101.0/dmd.2.101.0.windows.7z. Other
versions of D may or may not reproduce the bug, as I'm sure that changes in
Phobos/Druntime affect the outcome as well.
To reproduce, edit reproduce.cmd to point it to the path to where your copy of
the 2.101.0 dmd.exe is located, and run it. You should get a bunch of
deprecation warnings followed by the link error above.
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