For split dwarf we should also run the objcopy action if we're

just assembling a file and have passed the option.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179218 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 253c2dc7a1f9e31c6c852ddaf789006dfce9fffe..808071cd3ba7fa3a9a4f5ee154dfea2b3b06a606 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -3671,6 +3671,14 @@ void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
 
   const char *Exec = getToolChain().getDriver().getClangProgramPath();
   C.addCommand(new Command(JA, *this, Exec, CmdArgs));
+
+  // Handle the debug info splitting at object creation time if we're
+  // creating an object.
+  // TODO: Currently only works on linux with newer objcopy.
+  if (Args.hasArg(options::OPT_gsplit_dwarf) &&
+      (getToolChain().getTriple().getOS() == llvm::Triple::Linux))
+    SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
+                   SplitDebugName(Args, Inputs));
 }
 
 void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,

diff --git a/test/Driver/split-debug.s b/test/Driver/split-debug.s
new file mode 100644 (file)
index 0000000..d5f077a
--- /dev/null
+++ b/test/Driver/split-debug.s
@@ -0,0 +1,21 @@
+// Check that we split debug output properly
+//
+// REQUIRES: asserts
+// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -c -### %s 2> %t
+// RUN: FileCheck -check-prefix=CHECK-ACTIONS < %t %s
+//
+// CHECK-ACTIONS: objcopy{{.*}}--extract-dwo{{.*}}"split-debug.dwo"
+// CHECK-ACTIONS: objcopy{{.*}}--strip-dwo{{.*}}"split-debug.o"
+
+
+// RUN: %clang -target x86_64-macosx -gsplit-dwarf -c -### %s 2> %t
+// RUN: FileCheck -check-prefix=CHECK-NO-ACTIONS < %t %s
+//
+// CHECK-NO-ACTIONS-NOT: -split-dwarf
+
+
+// RUN: %clang -target x86_64-unknown-linux-gnu -gsplit-dwarf -o Bad.x -### %s 2> %t
+// RUN: FileCheck -check-prefix=CHECK-BAD < %t %s
+//
+// CHECK-BAD-NOT: "Bad.dwo"
+