[codeview] Wire up the .cv_inline_linetable directive
This directive emits the binary annotations that describe line and code
deltas in inlined call sites. Single-stepping through inlined frames in
windbg now works.
llvm-svn: 259535
diff --git a/llvm/lib/MC/MCAssembler.cpp b/llvm/lib/MC/MCAssembler.cpp
index 6965b1b..9a55ef3 100644
--- a/llvm/lib/MC/MCAssembler.cpp
+++ b/llvm/lib/MC/MCAssembler.cpp
@@ -15,6 +15,7 @@
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCAsmLayout.h"
#include "llvm/MC/MCCodeEmitter.h"
+#include "llvm/MC/MCCodeView.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCExpr.h"
@@ -300,6 +301,8 @@
return cast<MCDwarfLineAddrFragment>(F).getContents().size();
case MCFragment::FT_DwarfFrame:
return cast<MCDwarfCallFrameFragment>(F).getContents().size();
+ case MCFragment::FT_CVInlineLines:
+ return cast<MCCVInlineLineTableFragment>(F).getContents().size();
case MCFragment::FT_Dummy:
llvm_unreachable("Should not have been added");
}
@@ -537,6 +540,11 @@
OW->writeBytes(CF.getContents());
break;
}
+ case MCFragment::FT_CVInlineLines: {
+ const auto &OF = cast<MCCVInlineLineTableFragment>(F);
+ OW->writeBytes(OF.getContents());
+ break;
+ }
case MCFragment::FT_Dummy:
llvm_unreachable("Should not have been added");
}
@@ -813,6 +821,13 @@
return OldSize != Data.size();
}
+bool MCAssembler::relaxCVInlineLineTable(MCAsmLayout &Layout,
+ MCCVInlineLineTableFragment &F) {
+ unsigned OldSize = F.getContents().size();
+ getContext().getCVContext().encodeInlineLineTable(Layout, F);
+ return OldSize != F.getContents().size();
+}
+
bool MCAssembler::layoutSectionOnce(MCAsmLayout &Layout, MCSection &Sec) {
// Holds the first fragment which needed relaxing during this layout. It will
// remain NULL if none were relaxed.
@@ -844,6 +859,10 @@
case MCFragment::FT_LEB:
RelaxedFrag = relaxLEB(Layout, *cast<MCLEBFragment>(I));
break;
+ case MCFragment::FT_CVInlineLines:
+ RelaxedFrag =
+ relaxCVInlineLineTable(Layout, *cast<MCCVInlineLineTableFragment>(I));
+ break;
}
if (RelaxedFrag && !FirstRelaxedFragment)
FirstRelaxedFragment = &*I;