[PATCH] D110464: [lld-macho][nfc] Added some notes on deliberate differences btw LLD vs LD64

[Vy Nguyen via Phabricator via llvm-commits]

oontvoo updated this revision to Diff 381123.
oontvoo marked an inline comment as done.
oontvoo added a comment.

addressed review comments


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110464/new/

https://reviews.llvm.org/D110464

Files:
  lld/MachO/ld64-vs-lld.rst


Index: lld/MachO/ld64-vs-lld.rst
===================================================================
--- /dev/null
+++ lld/MachO/ld64-vs-lld.rst
@@ -0,0 +1,16 @@
+==================
+LD64 vs LLD-MACHO
+==================
+
+This doc lists all significant deliberate differences in behavior between LD64 and LLD-MachO.
+
+ObjC symbols treatment
+**********************
+There are differences in how LLD and LD64 handle ObjC symbols loaded from archives.
+
+- LD64:
+   * Duplicate ObjC symbols from the same archives is not an error. It will pick the first one.   
+   * Duplicate ObjC symbols from different archives will raise a "duplicate symbol" error.
+- LLD:
+   * Duplicate symbols, regardless of which archives they are from, will raise errors.
+


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