https://bugs.llvm.org/show_bug.cgi?id=49226
Bug ID: 49226
Summary: [lld] Errors about duplicate gcov symbols after
8f91f38
Product: lld
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: ELF
Assignee: unassignedb...@nondot.org
Reporter: dma...@mozilla.com
CC: llvm-bugs@lists.llvm.org, mh+l...@glandium.org,
nikita....@gmail.com, smithp...@googlemail.com
Blocks: 48902
https://treeherder.mozilla.org/logviewer?job_id=330246994&repo=try&lineNumber=59045
When linking rust code compiled with coverage enabled, we see `error: duplicate
symbol: __gcov_dump` and similar.
Bisection points to 8f91f38 https://reviews.llvm.org/D86142 which is odd
because at first glance I wouldn't think that patch should affect non-fortran.
Should those gcov symbols have been considered mergeable?
Our build setup is pretty complex and I'm still trying to understand the
failure better, but I wanted to report this as early as possible given the
12.0.0 timeline. Right now I only have the CI logs but I'll try reproducing it
locally. If there are any specific pieces of information that I should try to
extract to help people debug this, please let me know.
Referenced Bugs:
https://bugs.llvm.org/show_bug.cgi?id=48902
[Bug 48902] [meta] 12.0.0 Release Blockers
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