[LLD] [COFF] Don't create pseudo relocations for discardable sections (#89043)

This extends on the case from 9c970d5ecd6a85188cd2b0a941fcd4d60063ef81;
if a section is marked discardable, it won't be mapped into memory at
runtime, so there's no point in creating runtime pseudo relocations for
such sections.

1 files changed, 4 insertions, 0 deletions

diff --git a/lld/COFF/Writer.cpp b/lld/COFF/Writer.cpp
index 7269d15..6899323 100644
--- a/lld/COFF/Writer.cpp
+++ b/lld/COFF/Writer.cpp
@@ -2060,6 +2060,10 @@ void Writer::createRuntimePseudoRelocs() {
     auto *sc = dyn_cast<SectionChunk>(c);
     if (!sc || !sc->live)
       continue;
+    // Don't create pseudo relocations for sections that won't be
+    // mapped at runtime.
+    if (sc->header->Characteristics & IMAGE_SCN_MEM_DISCARDABLE)
+      continue;
     sc->getRuntimePseudoRelocs(rels);
   }