2 files changed, 18 insertions, 1 deletions
diff --git a/llvm/lib/Object/ELF.cpp b/llvm/lib/Object/ELF.cpp
index d5d98126343..951f4ae8f7e 100644
--- a/llvm/lib/Object/ELF.cpp
+++ b/llvm/lib/Object/ELF.cpp
@@ -253,6 +253,7 @@ StringRef llvm::object::getELFSectionTypeName(uint32_t Machine, unsigned Type) {
     STRINGIFY_ENUM_CASE(ELF, SHT_LLVM_LINKER_OPTIONS);
     STRINGIFY_ENUM_CASE(ELF, SHT_LLVM_CALL_GRAPH_PROFILE);
     STRINGIFY_ENUM_CASE(ELF, SHT_LLVM_ADDRSIG);
+    STRINGIFY_ENUM_CASE(ELF, SHT_LLVM_DEPENDENT_LIBRARIES);
     STRINGIFY_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES);
     STRINGIFY_ENUM_CASE(ELF, SHT_GNU_HASH);
     STRINGIFY_ENUM_CASE(ELF, SHT_GNU_verdef);
diff --git a/llvm/lib/Object/IRSymtab.cpp b/llvm/lib/Object/IRSymtab.cpp
index e80eaf1db32..e4282b9d6bd 100644
--- a/llvm/lib/Object/IRSymtab.cpp
+++ b/llvm/lib/Object/IRSymtab.cpp
@@ -89,6 +89,8 @@ struct Builder {
   std::string COFFLinkerOpts;
   raw_string_ostream COFFLinkerOptsOS{COFFLinkerOpts};
 
+  std::vector<storage::Str> DependentLibraries;
+
   void setStr(storage::Str &S, StringRef Value) {
     S.Offset = StrtabBuilder.add(Value);
     S.Size = Value.size();
@@ -140,6 +142,20 @@ Error Builder::addModule(Module *M) {
     }
   }
 
+  if (TT.isOSBinFormatELF()) {
+    if (auto E = M->materializeMetadata())
+      return E;
+    if (NamedMDNode *N = M->getNamedMetadata("llvm.dependent-libraries")) {
+      for (MDNode *MDOptions : N->operands()) {
+        const auto OperandStr =
+            cast<MDString>(cast<MDNode>(MDOptions)->getOperand(0))->getString();
+        storage::Str Specifier;
+        setStr(Specifier, OperandStr);
+        DependentLibraries.emplace_back(Specifier);
+      }
+    }
+  }
+
   for (ModuleSymbolTable::Symbol Msym : Msymtab.symbols())
     if (Error Err = addSymbol(Msymtab, Used, Msym))
       return Err;
@@ -312,7 +328,7 @@ Error Builder::build(ArrayRef<Module *> IRMods) {
   writeRange(Hdr.Comdats, Comdats);
   writeRange(Hdr.Symbols, Syms);
   writeRange(Hdr.Uncommons, Uncommons);
-
+  writeRange(Hdr.DependentLibraries, DependentLibraries);
   *reinterpret_cast<storage::Header *>(Symtab.data()) = Hdr;
   return Error::success();
 }