[build] Introduce an embedder version string

src/version.cc

 // Copyright 2012 the V8 project 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 "src/version.h"
 
 #include "include/v8-version-string.h"
 #include "include/v8-version.h"
 #include "src/utils.h"
 
 // Define SONAME to have the build system put a specific SONAME into the
 // shared library instead the generic SONAME generated from the V8 version
 // number. This define is mainly used by the build system script.
 #define SONAME            ""
 
 namespace v8 {
 namespace internal {
 
 int Version::major_ = V8_MAJOR_VERSION;
 int Version::minor_ = V8_MINOR_VERSION;
 int Version::build_ = V8_BUILD_NUMBER;
 int Version::patch_ = V8_PATCH_LEVEL;
+const char* Version::embedder_ = V8_EMBEDDER_STRING;
 bool Version::candidate_ = (V8_IS_CANDIDATE_VERSION != 0);
 const char* Version::soname_ = SONAME;
 const char* Version::version_string_ = V8_VERSION_STRING;
 
 // Calculate the V8 version string.
 void Version::GetString(Vector<char> str) {
   const char* candidate = IsCandidate() ? " (candidate)" : "";
 #ifdef USE_SIMULATOR
   const char* is_simulator = " SIMULATOR";
 #else
   const char* is_simulator = "";
 #endif  // USE_SIMULATOR
   if (GetPatch() > 0) {
-    SNPrintF(str, "%d.%d.%d.%d%s%s",
-             GetMajor(), GetMinor(), GetBuild(), GetPatch(), candidate,
-             is_simulator);
+    SNPrintF(str, "%d.%d.%d.%d%s%s%s", GetMajor(), GetMinor(), GetBuild(),
+             GetPatch(), GetEmbedder(), candidate, is_simulator);
   } else {
     SNPrintF(str, "%d.%d.%d%s%s",
              GetMajor(), GetMinor(), GetBuild(), candidate,
              is_simulator);
   }
 }
 
 
 // Calculate the SONAME for the V8 shared library.
 void Version::GetSONAME(Vector<char> str) {
   if (soname_ == NULL || *soname_ == '\0') {
     // Generate generic SONAME if no specific SONAME is defined.
     const char* candidate = IsCandidate() ? "-candidate" : "";
     if (GetPatch() > 0) {
-      SNPrintF(str, "libv8-%d.%d.%d.%d%s.so",
-               GetMajor(), GetMinor(), GetBuild(), GetPatch(), candidate);
+      SNPrintF(str, "libv8-%d.%d.%d.%d%s%s.so", GetMajor(), GetMinor(),
+               GetBuild(), GetPatch(), GetEmbedder(), candidate);
     } else {
       SNPrintF(str, "libv8-%d.%d.%d%s.so",
                GetMajor(), GetMinor(), GetBuild(), candidate);
     }
   } else {
     // Use specific SONAME.
     SNPrintF(str, "%s", soname_);
   }
 }
 
 }  // namespace internal
 }  // namespace v8