This patch extends the libLLVMDebugInfo which contains a minimalistic DWARF parser:

1) DIContext is now able to return function name for a given instruction address (besides file/line info).
2) llvm-dwarfdump accepts flag --functions that prints the function name (if address is specified by --address flag).
3) test case that checks the basic functionality of llvm-dwarfdump added

llvm-svn: 159512

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/DebugInfo/DWARFDebugInfoEntry.h b/llvm/lib/DebugInfo/DWARFDebugInfoEntry.h
index 37b3bcdd96e..1a040a53a38 100644
--- a/llvm/lib/DebugInfo/DWARFDebugInfoEntry.h
+++ b/llvm/lib/DebugInfo/DWARFDebugInfoEntry.h
@@ -128,6 +128,13 @@ public:
 
   void buildAddressRangeTable(const DWARFCompileUnit *cu,
                               DWARFDebugAranges *debug_aranges) const;
+
+  bool addressRangeContainsAddress(const DWARFCompileUnit *cu,
+                                   const uint64_t address) const;
+
+  // If a DIE represents a subroutine, returns its mangled name
+  // (or short name, if mangled is missing). Otherwise returns null.
+  const char* getSubprogramName(const DWARFCompileUnit *cu) const;
 };
 
 }