Bug 231882

Summary:	multiple toolchain issues with statically linked binaries
Product:	Base System	Reporter:	Ed Maste <emaste>
Component:	bin	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	New ---
Severity:	Affects Only Me	CC:	cem
Priority:	---
Version:	CURRENT
Hardware:	Any
OS:	Any
Bug Depends on:	236165, 232176, 233336
Bug Blocks:	231027

Description Ed Maste freebsd_committer

2018-10-02 18:09:09 UTC

Attempting to make use of some WIP with statically linked binaries (i386 / amd64) has uncovered a number of tool chain issues which will be tracked in this PR.

* elfcopy/strip removes ifunc, probably other relocations

Found by kib@, with userland ifunc stripped statically linked binaries segfault. strip removed the .rela.plt section header; file content at the expected relocation site has been zeroed.

See LLVM PR 37538 for an initial part of this issue - lld is writing 0 in sh_info and sh_link on the .rela.plt section. https://bugs.llvm.org/show_bug.cgi?id=37538

This likely also affects static PIE.

Comment 1 Ed Maste freebsd_committer

2018-10-02 23:03:00 UTC

Another llvm PR that may be related: https://bugs.llvm.org/show_bug.cgi?id=38074

Comment 2 Ed Maste freebsd_committer

2018-10-11 13:22:09 UTC

lld issue fixed in r339304