Add basic support for .debug_ranges section to LLVM's DebugInfo library.
This section (introduced in DWARF-3) is used to define instruction address
ranges for functions that are not contiguous and can't be described
by low_pc/high_pc attributes (this is the usual case for inlined subroutines).
The patch is the first step to support fetching complete inlining info from DWARF.
Reviewed by Benjamin Kramer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162657 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
index ec0b4ae..59ecafa 100644
--- a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
+++ b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
@@ -59,6 +59,7 @@
StringRef DebugLineSection;
StringRef DebugArangesSection;
StringRef DebugStringSection;
+ StringRef DebugRangesSection;
error_code ec;
for (section_iterator i = Obj->begin_sections(),
@@ -82,6 +83,8 @@
DebugArangesSection = data;
else if (name == "debug_str")
DebugStringSection = data;
+ else if (name == "debug_ranges")
+ DebugRangesSection = data;
}
OwningPtr<DIContext> dictx(DIContext::getDWARFContext(/*FIXME*/true,
@@ -89,7 +92,8 @@
DebugAbbrevSection,
DebugArangesSection,
DebugLineSection,
- DebugStringSection));
+ DebugStringSection,
+ DebugRangesSection));
if (Address == -1ULL) {
outs() << Filename
<< ":\tfile format " << Obj->getFileFormatName() << "\n\n";