[llvm] Add Offoading to llvm-readobj and llvm-objcopy (PR #141978)

[Matt Arsenault via llvm-commits]

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@@ -230,4 +232,28 @@ void ObjDumper::printSectionsAsHex(const object::ObjectFile &Obj,
   }
 }
 
+// TODO: add proper error handling.
+void ObjDumper::printOffloading(const object::ObjectFile &Obj) {
+  // we can use an argument to let user select which offloading section they
+  // want to print. but for now, we're hardcoding ELF and "hip_fatbin".
+  assert((Obj.isELF() || Obj.isCOFF()) && "Invalid file type");
+
+  SmallVector<llvm::object::OffloadBundleFatBin> Bundles;
+  if (Error Err = llvm::object::extractOffloadBundleFatBinary(Obj, Bundles))
+    reportWarning(createError("Cannot extract Fatbin Binary from Object."),
+                  Obj.getFileName());
+
+  // Print out all the FatBin Bundles that are contained in this buffer.
+  for (const auto &[Index, Bundle] : llvm::enumerate(Bundles)) {
+    Bundle.printEntriesAsURI();
+  }
+  /**SmallVectorImpl<llvm::object::OffloadBundleFatBin>::iterator it =
+      Bundles.begin();
+  for (uint64_t I = 0; I < Bundles.size(); I++) {
+    outs() << "Bundle " << I << "\n";
+    it->printEntriesAsURI();
+    ++it;
+  } **/
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arsenm wrote:

Commented out code 

https://github.com/llvm/llvm-project/pull/141978