Rename onload to llvm_plugin_onload in the LLVM gold plugin

llvm/tools/gold/gold-plugin.cpp

 //===-- gold-plugin.cpp - Plugin to gold for Link Time Optimization  ------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This is a gold plugin for LLVM. It provides an LLVM implementation of the
@@ skipping 134 matching lines @@
       extra.push_back(opt);
     }
   }
 }
 
 static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
                                         int *claimed);
 static ld_plugin_status all_symbols_read_hook(void);
 static ld_plugin_status cleanup_hook(void);
 
-extern "C" ld_plugin_status onload(ld_plugin_tv *tv);
-ld_plugin_status onload(ld_plugin_tv *tv) {
+extern "C" ld_plugin_status llvm_plugin_onload(ld_plugin_tv *tv); // @LOCALMOD
+ld_plugin_status llvm_plugin_onload(ld_plugin_tv *tv) { // @LOCALMOD
   // We're given a pointer to the first transfer vector. We read through them
   // until we find one where tv_tag == LDPT_NULL. The REGISTER_* tagged values
   // contain pointers to functions that we need to call to register our own
   // hooks. The others are addresses of functions we can use to call into gold
   // for services.
 
   bool registeredClaimFile = false;
 
   for (; tv->tv_tag != LDPT_NULL; ++tv) {
     switch (tv->tv_tag) {
@@ skipping 432 matching lines @@
 static ld_plugin_status cleanup_hook(void) {
   std::string ErrMsg;
 
   for (int i = 0, e = Cleanup.size(); i != e; ++i)
     if (Cleanup[i].eraseFromDisk(false, &ErrMsg))
       (*message)(LDPL_ERROR, "Failed to delete '%s': %s", Cleanup[i].c_str(),
                  ErrMsg.c_str());
 
   return LDPS_OK;
 }