Implement parsing, AST, (de-)serialization, and placeholder global
metadata for linking against the libraries/frameworks for imported
modules.
The module map language is extended with a new "link" directive that
specifies what library or framework to link against when a module is
imported, e.g.,
link "clangAST"
or
link framework "MyFramework"
Importing the corresponding module (or any of its submodules) will
eventually link against the named library/framework.
For now, I've added some placeholder global metadata that encodes the
imported libraries/frameworks, so that we can test that this
information gets through to the IR. The format of the data is still
under discussion.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172437 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index 2ed8853..81d3cea 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -3413,6 +3413,9 @@
DeserializationListener->ModuleRead(GlobalID, CurrentModule);
SubmodulesLoaded[GlobalIndex] = CurrentModule;
+
+ // Clear out link libraries; the module file has them.
+ CurrentModule->LinkLibraries.clear();
break;
}
@@ -3600,6 +3603,20 @@
Context.getTargetInfo());
break;
}
+
+ case SUBMODULE_LINK_LIBRARY:
+ if (First) {
+ Error("missing submodule metadata record at beginning of block");
+ return true;
+ }
+
+ if (!CurrentModule)
+ break;
+
+ CurrentModule->LinkLibraries.push_back(
+ Module::LinkLibrary(StringRef(BlobStart, BlobLen),
+ Record[0]));
+ break;
}
}
}