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From: | tbaeder at redhat dot com |
Subject: | [Bug ld/28040] New: libLLVM.so fails to link using LTO with ld.bfd + LLVMGold plugin |
Date: | Thu, 01 Jul 2021 13:14:14 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=28040 Bug ID: 28040 Summary: libLLVM.so fails to link using LTO with ld.bfd + LLVMGold plugin Product: binutils Version: 2.37 (HEAD) Status: NEW Severity: normal Priority: P2 Component: ld Assignee: unassigned at sourceware dot org Reporter: tbaeder at redhat dot com Target Milestone: --- This is a forward of https://bugzilla.redhat.com/show_bug.cgi?id=1954375 and https://reviews.llvm.org/D104230 ld.bfd (or rather libbfd I think) creates tons of fds and passes them to the claim_file() callback that ld plugins implement. This is the case for archives as far as I can see. ld does not close the fd after the claim_file() callback has been called when the LLVM plugin is in use, but does close them when the gcc plugin is used (there is a comment about this in ld/plugin.c. Simply removing that comment and the surrounding if statement fixed the problem for me. Explicitly calling release_input_file() in LLVM's claim_file implementation also worked for me. I don't have a smaller test case for this unfortunately. -- You are receiving this mail because: You are on the CC list for the bug.
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