Driver and option support for -gsplit-dwarf. This is a part of
the DWARF5 split dwarf proposal.
llvm-svn: 174349
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 8a2804a..1e23f56 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -25,6 +25,7 @@
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/StringSet.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
@@ -1036,6 +1037,7 @@
// Construct the actions to perform.
ActionList LinkerInputs;
+ ActionList SplitInputs;
unsigned NumSteps = 0;
for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
types::ID InputType = Inputs[i].first;
@@ -1105,6 +1107,12 @@
Current.reset(ConstructPhaseAction(Args, Phase, Current.take()));
if (Current->getType() == types::TY_Nothing)
break;
+ else if (Current->getType() == types::TY_Object &&
+ Args.hasArg(options::OPT_gsplit_dwarf)) {
+ ActionList Input;
+ Input.push_back(Current.take());
+ Current.reset(new SplitDebugJobAction(Input, types::TY_Object));
+ }
}
// If we ended with something, add to the output list.
@@ -1112,6 +1120,16 @@
Actions.push_back(Current.take());
}
+ if (!SplitInputs.empty()) {
+ for (ActionList::iterator i = SplitInputs.begin(), e = SplitInputs.end();
+ i != e; ++i) {
+ Action *Act = *i;
+ ActionList Inputs;
+ Inputs.push_back(Act);
+ Actions.push_back(new SplitDebugJobAction(Inputs, types::TY_Object));
+ }
+ }
+
// Add a link action if necessary.
if (!LinkerInputs.empty())
Actions.push_back(new LinkJobAction(LinkerInputs, types::TY_Image));
@@ -1396,12 +1414,13 @@
BaseInput = InputInfos[0].getFilename();
// Determine the place to write output to, if any.
- if (JA->getType() == types::TY_Nothing) {
+ if (JA->getType() == types::TY_Nothing)
Result = InputInfo(A->getType(), BaseInput);
- } else {
+ else if (isa<SplitDebugJobAction>(A))
+ Result = InputInfos[0];
+ else
Result = InputInfo(GetNamedOutputPath(C, *JA, BaseInput, AtTopLevel),
A->getType(), BaseInput);
- }
if (CCCPrintBindings && !CCGenDiagnostics) {
llvm::errs() << "# \"" << T.getToolChain().getTripleString() << '"'