First part of support for generating dwarf for assembly source files with the
-g flag. In this part we generate the .file for the source being assembled and
the .loc's for the assembled instructions.
The next part will be to generate the dwarf Compile Unit DIE and a dwarf
subprogram DIE for each non-temporary label.
Once the next part is done test cases will be added. rdar://9275556
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143509 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index c188a76..8718b10 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -152,6 +152,10 @@
static cl::opt<bool>
SaveTempLabels("L", cl::desc("Don't discard temporary labels"));
+static cl::opt<bool>
+GenDwarfForAssembly("g", cl::desc("Generate dwarf debugging info for assembly "
+ "source files"));
+
enum ActionType {
AC_AsLex,
AC_Assemble,
@@ -377,6 +381,8 @@
if (SaveTempLabels)
Ctx.setAllowTemporaryLabels(false);
+ Ctx.setGenDwarfForAssembly(GenDwarfForAssembly);
+
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
if (MAttrs.size()) {