[GN]: Support for loadable modules

tools/gn/toolchain.cc

Index: tools/gn/toolchain.cc
diff --git a/tools/gn/toolchain.cc b/tools/gn/toolchain.cc
index cdd70c02f5546740fdf6adb3c4bd0929f21090ea..826c875b6ca4958738340672dc974575c6294cd8 100644
--- a/tools/gn/toolchain.cc
+++ b/tools/gn/toolchain.cc
@@ -18,6 +18,7 @@ const char* Toolchain::kToolRc = "rc";
 const char* Toolchain::kToolAsm = "asm";
 const char* Toolchain::kToolAlink = "alink";
 const char* Toolchain::kToolSolink = "solink";
+const char* Toolchain::kToolSolinkModule = "solink_module";
 const char* Toolchain::kToolLink = "link";
 const char* Toolchain::kToolStamp = "stamp";
 const char* Toolchain::kToolCopy = "copy";
@@ -49,6 +50,7 @@ Toolchain::ToolType Toolchain::ToolNameToType(const base::StringPiece& str) {
   if (str == kToolAsm) return TYPE_ASM;
   if (str == kToolAlink) return TYPE_ALINK;
   if (str == kToolSolink) return TYPE_SOLINK;
+  if (str == kToolSolinkModule) return TYPE_SOLINK_MODULE;
   if (str == kToolLink) return TYPE_LINK;
   if (str == kToolStamp) return TYPE_STAMP;
   if (str == kToolCopy) return TYPE_COPY;
@@ -66,6 +68,7 @@ std::string Toolchain::ToolTypeToName(ToolType type) {
     case TYPE_ASM: return kToolAsm;
     case TYPE_ALINK: return kToolAlink;
     case TYPE_SOLINK: return kToolSolink;
+    case TYPE_SOLINK_MODULE: return kToolSolinkModule;
     case TYPE_LINK: return kToolLink;
     case TYPE_STAMP: return kToolStamp;
     case TYPE_COPY: return kToolCopy;
@@ -140,6 +143,8 @@ Toolchain::ToolType Toolchain::GetToolTypeForTargetFinalOutput(
       return Toolchain::TYPE_LINK;
     case Target::SHARED_LIBRARY:
       return Toolchain::TYPE_SOLINK;
+    case Target::LOADABLE_MODULE:
+      return Toolchain::TYPE_SOLINK_MODULE;
     case Target::STATIC_LIBRARY:
       return Toolchain::TYPE_ALINK;
     case Target::SOURCE_SET: