Canonicalize the type of .eh_frame.
GNU as can give it type SHT_PROGBITS or SHT_X86_64_UNWIND depending on
teh construct.
MC gives it type SHT_X86_64_UNWIND.
The linker has to canonicalize to one or the other so that there is only
one .eh_frame in the end.
llvm-svn: 252757
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index e01174e..f5f888c 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -489,8 +489,12 @@
// mapping from input to output.
auto *IS = dyn_cast<InputSection<ELFT>>(C);
uintX_t EntSize = IS ? 0 : H->sh_entsize;
+ uint32_t OutType = H->sh_type;
+ if (OutType == SHT_PROGBITS && C->getSectionName() == ".eh_frame" &&
+ Config->EMachine == EM_X86_64)
+ OutType = SHT_X86_64_UNWIND;
SectionKey<ELFT::Is64Bits> Key{getOutputName(C->getSectionName()),
- H->sh_type, OutFlags, EntSize};
+ OutType, OutFlags, EntSize};
OutputSectionBase<ELFT> *&Sec = Map[Key];
if (!Sec) {
if (IS)