https://sourceware.org/bugzilla/show_bug.cgi?id=32720
Bug ID: 32720
Summary: ld: add --why-live
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: i at maskray dot me
Target Milestone: ---
Apple ld64 implements -why_live sym
> Logs a chain of references to symbol_name. Only applicable with -dead_strip .
> It can help debug why something that you think should be dead strip removed
> is not removed.
I have some notes at
https://maskray.me/blog/2022-02-27-analysis-and-introspection-options-in-linkers
The feature has been ported to LLVM linker's Mach-O port
(https://reviews.llvm.org/D120377) and the ELF port feature is being worked on
(https://github.com/llvm/llvm-project/pull/127112).
Would be nice to have a similar feature in GNU ld.
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