The second part of support for generating dwarf for assembly source files. This
generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each
non-temporary label.
The next part will be to get the clang driver to enable this when assembling
a .s file. rdar://9275556
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index 1139e36..4281259 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -234,6 +234,17 @@
return Out;
}
+static std::string DwarfDebugFlags;
+static void setDwarfDebugFlags(int argc, char **argv) {
+ if (!getenv("RC_DEBUG_OPTIONS"))
+ return;
+ for (int i = 0; i < argc; i++) {
+ DwarfDebugFlags += argv[i];
+ if (i + 1 < argc)
+ DwarfDebugFlags += " ";
+ }
+}
+
static int AsLexInput(const char *ProgName) {
OwningPtr<MemoryBuffer> BufferPtr;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, BufferPtr)) {
@@ -382,6 +393,8 @@
Ctx.setAllowTemporaryLabels(false);
Ctx.setGenDwarfForAssembly(GenDwarfForAssembly);
+ if (!DwarfDebugFlags.empty())
+ Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags));
// Package up features to be passed to target/subtarget
std::string FeaturesStr;
@@ -508,6 +521,7 @@
cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
TripleName = Triple::normalize(TripleName);
+ setDwarfDebugFlags(argc, argv);
switch (Action) {
default: