andrewjcg created this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
When precompiling a header module, `-fmodule-file=name>=<path>` flags
can be used to provide an updated path to a module, which allows modules
to be moved from the location they were compiled against.
This diff makes these flags also apply to when compiling a `.pcm` file
into a `.o`.
Repository:
rC Clang
https://reviews.llvm.org/D70219
Files:
include/clang/Frontend/ASTUnit.h
lib/Frontend/ASTUnit.cpp
lib/Frontend/FrontendAction.cpp
test/Modules/Inputs/explicit-build-pcm/a.h
test/Modules/Inputs/explicit-build-pcm/b.h
test/Modules/Inputs/explicit-build-pcm/c.h
test/Modules/Inputs/explicit-build-pcm/d.h
test/Modules/Inputs/explicit-build-pcm/module.modulemap
test/Modules/explicit-build-pcm.cpp
Index: test/Modules/explicit-build-pcm.cpp
===================================================================
--- /dev/null
+++ test/Modules/explicit-build-pcm.cpp
@@ -0,0 +1,26 @@
+// RUN: rm -rf %t
+// expected-no-diagnostics
+
+// RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Rmodule-build -fno-modules-error-recovery \
+// RUN: -fmodule-name=a -emit-module %S/Inputs/explicit-build/module.modulemap -o %t/a.pcm
+
+// RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Rmodule-build -fno-modules-error-recovery \
+// RUN: -fmodule-file=a=%t/a.pcm \
+// RUN: -fmodule-name=b -emit-module %S/Inputs/explicit-build/module.modulemap -o %t/b.pcm
+
+// RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Rmodule-build -fno-modules-error-recovery \
+// RUN: -fmodule-file=a=%t/a.pcm \
+// RUN: -fmodule-file=b=%t/b.pcm \
+// RUN: -fmodule-name=c -emit-module %S/Inputs/explicit-build/module.modulemap -o %t/c.pcm
+
+// RUN: mv %t/a.pcm %t/a.moved.pcm
+// RUN: mv %t/b.pcm %t/b.moved.pcm
+// RUN: mv %t/c.pcm %t/c.moved.pcm
+//
+// RUN: %clang_cc1 -x pcm -std=c++11 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -Rmodule-build -fno-modules-error-recovery \
+// RUN: -fmodule-file=a=%t/a.moved.pcm \
+// RUN: -fmodule-file=b=%t/b.moved.pcm \
+// RUN: %t/c.moved.pcm -o %t/c.o
+// expected-no-diagnostics
+
+#include <stdio.h>
Index: test/Modules/Inputs/explicit-build-pcm/module.modulemap
===================================================================
--- /dev/null
+++ test/Modules/Inputs/explicit-build-pcm/module.modulemap
@@ -0,0 +1,4 @@
+module a { header "a.h" }
+module b { header "b.h" export * }
+module c { header "c.h" export * }
+module d { header "d.h" }
Index: test/Modules/Inputs/explicit-build-pcm/c.h
===================================================================
--- /dev/null
+++ test/Modules/Inputs/explicit-build-pcm/c.h
@@ -0,0 +1,7 @@
+#include "b.h"
+
+#if !__building_module(c)
+#error "should only get here when building module c"
+#endif
+
+const int c = 3;
Index: test/Modules/Inputs/explicit-build-pcm/b.h
===================================================================
--- /dev/null
+++ test/Modules/Inputs/explicit-build-pcm/b.h
@@ -0,0 +1,7 @@
+#include "a.h"
+
+#if !__building_module(b)
+#error "should only get here when building module b"
+#endif
+
+const int b = 2;
Index: test/Modules/Inputs/explicit-build-pcm/a.h
===================================================================
--- /dev/null
+++ test/Modules/Inputs/explicit-build-pcm/a.h
@@ -0,0 +1,5 @@
+#if !__building_module(a) && !BUILDING_A_PCH
+#error "should only get here when building module a"
+#endif
+
+const int a = 1;
Index: lib/Frontend/FrontendAction.cpp
===================================================================
--- lib/Frontend/FrontendAction.cpp
+++ lib/Frontend/FrontendAction.cpp
@@ -564,7 +564,8 @@
std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
InputFile, CI.getPCHContainerReader(), ASTUnit::LoadPreprocessorOnly,
- ASTDiags, CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs);
+ ASTDiags, CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs,
+ false, None, CaptureDiagsKind::None, false, false, CI.getHeaderSearchOpts().PrebuiltModuleFiles);
if (!AST)
goto failure;
@@ -630,7 +631,8 @@
std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
InputFile, CI.getPCHContainerReader(), ASTUnit::LoadEverything, Diags,
- CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs);
+ CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs,
+ false, None, CaptureDiagsKind::None, false, false, CI.getHeaderSearchOpts().PrebuiltModuleFiles);
if (!AST)
goto failure;
Index: lib/Frontend/ASTUnit.cpp
===================================================================
--- lib/Frontend/ASTUnit.cpp
+++ lib/Frontend/ASTUnit.cpp
@@ -759,7 +759,8 @@
const FileSystemOptions &FileSystemOpts, bool UseDebugInfo,
bool OnlyLocalDecls, ArrayRef<RemappedFile> RemappedFiles,
CaptureDiagsKind CaptureDiagnostics, bool AllowPCHWithCompilerErrors,
- bool UserFilesAreVolatile) {
+ bool UserFilesAreVolatile,
+ const std::map<std::string, std::string>& PrebuiltModuleFiles) {
std::unique_ptr<ASTUnit> AST(new ASTUnit(true));
// Recover resources if we crash before exiting this method.
@@ -785,6 +786,7 @@
AST->ModuleCache = new InMemoryModuleCache;
AST->HSOpts = std::make_shared<HeaderSearchOptions>();
AST->HSOpts->ModuleFormat = PCHContainerRdr.getFormat();
+ AST->HSOpts->PrebuiltModuleFiles = PrebuiltModuleFiles;
AST->HeaderInfo.reset(new HeaderSearch(AST->HSOpts,
AST->getSourceManager(),
AST->getDiagnostics(),
Index: include/clang/Frontend/ASTUnit.h
===================================================================
--- include/clang/Frontend/ASTUnit.h
+++ include/clang/Frontend/ASTUnit.h
@@ -686,6 +686,8 @@
/// creating modules.
/// \param Diags - The diagnostics engine to use for reporting errors; its
/// lifetime is expected to extend past that of the returned ASTUnit.
+ /// \param PrebuiltModuleFiles - A map for module names to prebuilt module
+ /// paths.
///
/// \returns - The initialized ASTUnit or null if the AST failed to load.
static std::unique_ptr<ASTUnit> LoadFromASTFile(
@@ -695,7 +697,8 @@
bool OnlyLocalDecls = false, ArrayRef<RemappedFile> RemappedFiles = None,
CaptureDiagsKind CaptureDiagnostics = CaptureDiagsKind::None,
bool AllowPCHWithCompilerErrors = false,
- bool UserFilesAreVolatile = false);
+ bool UserFilesAreVolatile = false,
+ const std::map<std::string, std::string>& PrebuiltModuleFiles = {});
private:
/// Helper function for \c LoadFromCompilerInvocation() and
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