X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gold%2Fplugin.h;h=b37b641a6f8ed2e355e5565eb6f81c894c38fc85;hb=612f258a491539f36c618030cc558e83e7d58b4e;hp=9ef2812909284cc90b8894d8645647f71d524be0;hpb=54674d38930c7da1af518510fede6f700f5ca596;p=deliverable%2Fbinutils-gdb.git

diff --git a/gold/plugin.h b/gold/plugin.h
index 9ef2812909..b37b641a6f 100644
--- a/gold/plugin.h
+++ b/gold/plugin.h
@@ -1,6 +1,6 @@
 // plugin.h -- plugin manager for gold      -*- C++ -*-
 
-// Copyright (C) 2008-2014 Free Software Foundation, Inc.
+// Copyright (C) 2008-2020 Free Software Foundation, Inc.
 // Written by Cary Coutant <ccoutant@google.com>.
 
 // This file is part of gold.
@@ -47,6 +47,7 @@ class Task;
 class Task_token;
 class Pluginobj;
 class Plugin_rescan;
+class Plugin_recorder;
 
 // This class represents a single plugin library.
 
@@ -60,6 +61,7 @@ class Plugin
       claim_file_handler_(NULL),
       all_symbols_read_handler_(NULL),
       cleanup_handler_(NULL),
+      new_input_handler_(NULL),
       cleanup_done_(false)
   { }
 
@@ -78,6 +80,10 @@ class Plugin
   void
   all_symbols_read();
 
+  // Call the new_input handler.
+  void
+  new_input(struct ld_plugin_input_file* plugin_input_file);
+
   // Call the cleanup handler.
   void
   cleanup();
@@ -97,6 +103,11 @@ class Plugin
   set_cleanup_handler(ld_plugin_cleanup_handler handler)
   { this->cleanup_handler_ = handler; }
 
+  // Register a new_input handler.
+  void
+  set_new_input_handler(ld_plugin_new_input_handler handler)
+  { this->new_input_handler_ = handler; }
+
   // Add an argument
   void
   add_option(const char* arg)
@@ -104,6 +115,10 @@ class Plugin
     this->args_.push_back(arg);
   }
 
+  const std::string&
+  filename() const
+  { return this->filename_; }
+
  private:
   Plugin(const Plugin&);
   Plugin& operator=(const Plugin&);
@@ -118,6 +133,7 @@ class Plugin
   ld_plugin_claim_file_handler claim_file_handler_;
   ld_plugin_all_symbols_read_handler all_symbols_read_handler_;
   ld_plugin_cleanup_handler cleanup_handler_;
+  ld_plugin_new_input_handler new_input_handler_;
   // TRUE if the cleanup handlers have been called.
   bool cleanup_done_;
 };
@@ -134,11 +150,20 @@ class Plugin_manager
       in_claim_file_handler_(false),
       options_(options), workqueue_(NULL), task_(NULL), input_objects_(NULL),
       symtab_(NULL), layout_(NULL), dirpath_(NULL), mapfile_(NULL),
-      this_blocker_(NULL), extra_search_path_()
+      this_blocker_(NULL), extra_search_path_(), lock_(NULL),
+      initialize_lock_(&lock_), defsym_defines_set_(),
+      recorder_(NULL)
   { this->current_ = plugins_.end(); }
 
   ~Plugin_manager();
 
+  // Returns true if the symbol name is used in the LHS of a defsym.
+  bool
+  is_defsym_def(const char* sym_name) const
+  {
+    return defsym_defines_set_.find(sym_name) != defsym_defines_set_.end();
+  }
+
   // Add a plugin library.
   void
   add_plugin(const char* filename)
@@ -217,6 +242,14 @@ class Plugin_manager
     (*this->current_)->set_all_symbols_read_handler(handler);
   }
 
+  // Register a new_input handler.
+  void
+  set_new_input_handler(ld_plugin_new_input_handler handler)
+  {
+    gold_assert(this->current_ != plugins_.end());
+    (*this->current_)->set_new_input_handler(handler);
+  }
+
   // Register a claim-file handler.
   void
   set_cleanup_handler(ld_plugin_cleanup_handler handler)
@@ -281,10 +314,18 @@ class Plugin_manager
   input_objects() const
   { return this->input_objects_; }
 
+  Symbol_table*
+  symtab()
+  { return this->symtab_; }
+
   Layout*
   layout()
   { return this->layout_; }
 
+  Plugin_recorder*
+  recorder() const
+  { return this->recorder_; }
+
  private:
   Plugin_manager(const Plugin_manager&);
   Plugin_manager& operator=(const Plugin_manager&);
@@ -373,9 +414,18 @@ class Plugin_manager
   Mapfile* mapfile_;
   Task_token* this_blocker_;
 
-  // An extra directory to seach for the libraries passed by
+  // An extra directory to search for the libraries passed by
   // add_input_library.
   std::string extra_search_path_;
+  Lock* lock_;
+  Initialize_lock initialize_lock_;
+
+  // Keep track of all symbols defined by defsym.
+  typedef Unordered_set<std::string> Defsym_defines_set;
+  Defsym_defines_set defsym_defines_set_;
+
+  // Class to record plugin actions.
+  Plugin_recorder* recorder_;
 };
 
 
@@ -393,7 +443,8 @@ class Pluginobj : public Object
 
   // Fill in the symbol resolution status for the given plugin symbols.
   ld_plugin_status
-  get_symbol_resolution_info(int nsyms,
+  get_symbol_resolution_info(Symbol_table* symtab,
+			     int nsyms,
 			     ld_plugin_symbol* syms,
 			     int version) const;
 
@@ -425,6 +476,16 @@ class Pluginobj : public Object
   filesize()
   { return this->filesize_; }
 
+  // Return the word size of the object file.
+  int
+  elfsize() const
+  { gold_unreachable(); }
+
+  // Return TRUE if this is a big-endian object file.
+  bool
+  is_big_endian() const
+  { gold_unreachable(); }
+
  protected:
   // Return TRUE if this is an object claimed by a plugin.
   virtual Pluginobj*