Fix issue about mutiple source files

HIP now uses llvm_offload_entries as section name.

Author: yxsamliu

clang/test/Driver/linker-wrapper.c

@@ -223,6 +223,7 @@ __attribute__((visibility("protected"), used)) int x;
 // RELOCATABLE-LINK-HIP: clang-offload-bundler{{.*}} -type=o -bundle-align=4096 -targets=host-x86_64-unknown-linux-gnu,hip-amdgcn-amd-amdhsa--gfx90a -input={{/dev/null|NUL}} -input={{.*}} -output={{.*}}
 // RELOCATABLE-LINK-HIP: /usr/bin/ld.lld{{.*}}-r
 // RELOCATABLE-LINK-HIP: llvm-objcopy{{.*}}a.out --remove-section .llvm.offloading
+// RELOCATABLE-LINK-HIP: --rename-section llvm_offload_entries
 
 // RUN: clang-offload-packager -o %t.out \
 // RUN:   --image=file=%t.elf.o,kind=cuda,triple=nvptx64-nvidia-cuda,arch=sm_89 \

clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp

@@ -310,22 +310,21 @@ Error relocateOffloadSection(const ArgList &Args, StringRef Output) {
   // Remove the old .llvm.offloading section to prevent further linking.
   ObjcopyArgs.emplace_back("--remove-section");
   ObjcopyArgs.emplace_back(".llvm.offloading");
-  for (StringRef Prefix : {"omp", "cuda", "hip"}) {
-    auto Section = (Prefix + "_offloading_entries").str();
-    // Rename the offloading entires to make them private to this link unit.
-    ObjcopyArgs.emplace_back("--rename-section");
-    ObjcopyArgs.emplace_back(
-        Args.MakeArgString(Section + "=" + Section + Suffix));
-
-    // Rename the __start_ / __stop_ symbols appropriately to iterate over the
-    // newly renamed section containing the offloading entries.
-    ObjcopyArgs.emplace_back("--redefine-sym");
-    ObjcopyArgs.emplace_back(Args.MakeArgString("__start_" + Section + "=" +
-                                                "__start_" + Section + Suffix));
-    ObjcopyArgs.emplace_back("--redefine-sym");
-    ObjcopyArgs.emplace_back(Args.MakeArgString("__stop_" + Section + "=" +
-                                                "__stop_" + Section + Suffix));
-  }
+  StringRef Prefix = "llvm";
+  auto Section = (Prefix + "llvm_offload_entries").str();
+  // Rename the offloading entires to make them private to this link unit.
+  ObjcopyArgs.emplace_back("--rename-section");
+  ObjcopyArgs.emplace_back(
+      Args.MakeArgString(Section + "=" + Section + Suffix));
+
+  // Rename the __start_ / __stop_ symbols appropriately to iterate over the
+  // newly renamed section containing the offloading entries.
+  ObjcopyArgs.emplace_back("--redefine-sym");
+  ObjcopyArgs.emplace_back(Args.MakeArgString("__start_" + Section + "=" +
+                                              "__start_" + Section + Suffix));
+  ObjcopyArgs.emplace_back("--redefine-sym");
+  ObjcopyArgs.emplace_back(Args.MakeArgString("__stop_" + Section + "=" +
+                                              "__stop_" + Section + Suffix));
 
   if (Error Err = executeCommands(*ObjcopyPath, ObjcopyArgs))
     return Err;