gn: Add runtime_link_output to tool("solib")

tools/gn/target.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/target.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 495 matching lines @@
       // first output.
       CHECK(tool->outputs().list().size() >= 1);
       check_tool_outputs = true;
       link_output_file_ = dependency_output_file_ =
           SubstitutionWriter::ApplyPatternToLinkerAsOutputFile(
               this, tool, tool->outputs().list()[0]);
       break;
     case SHARED_LIBRARY:
       CHECK(tool->outputs().list().size() >= 1);
       check_tool_outputs = true;
+// XXX
       if (tool->link_output().empty() && tool->depend_output().empty()) {
         // Default behavior, use the first output file for both.
         link_output_file_ = dependency_output_file_ =
             SubstitutionWriter::ApplyPatternToLinkerAsOutputFile(
                 this, tool, tool->outputs().list()[0]);
       } else {
         // Use the tool-specified ones.
         if (!tool->link_output().empty()) {
           link_output_file_ =
               SubstitutionWriter::ApplyPatternToLinkerAsOutputFile(
                   this, tool, tool->link_output());
         }
         if (!tool->depend_output().empty()) {
           dependency_output_file_ =
               SubstitutionWriter::ApplyPatternToLinkerAsOutputFile(
                   this, tool, tool->depend_output());
         }
       }
+      if (tool->runtime_link_output().empty()) {
+        runtime_link_output_file_ = link_output_file_;
+      } else {
+          runtime_link_output_file_ =
+              SubstitutionWriter::ApplyPatternToLinkerAsOutputFile(
+                  this, tool, tool->runtime_link_output());
+      }
       break;
     case UNKNOWN:
     default:
       NOTREACHED();
   }
 
   // Count all outputs from this tool as something generated by this target.
   if (check_tool_outputs) {
     SubstitutionWriter::ApplyListToLinkerAsOutputFile(
         this, tool, tool->outputs(), &computed_outputs_);
@@ skipping 166 matching lines @@
   if (!EnsureFileIsGeneratedByDependency(this, out_file, true, false,
                                          &seen_targets)) {
     // Check object files (much slower and very rare) only if the "normal"
     // output check failed.
     seen_targets.clear();
     if (!EnsureFileIsGeneratedByDependency(this, out_file, true, true,
                                            &seen_targets))
       g_scheduler->AddUnknownGeneratedInput(this, source);
   }
 }