[llvm-dwarfdump] - Print section name and index when dumping .debug_info ranges
Teaches llvm-dwarfdump to print section index and name of range
when it dumps .debug_info.
Differential revision: https://reviews.llvm.org/D36313
llvm-svn: 310915
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
index 111f0bb..6b557b9 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
@@ -18,6 +18,7 @@
#include "llvm/DebugInfo/DWARF/DWARFDebugRangeList.h"
#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"
#include "llvm/DebugInfo/DWARF/DWARFUnit.h"
+#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
@@ -31,6 +32,7 @@
using namespace llvm;
using namespace dwarf;
+using namespace object;
using namespace syntax;
static void dumpApplePropertyAttribute(raw_ostream &OS, uint64_t Val) {
@@ -51,17 +53,42 @@
OS << ")";
}
-static void dumpRanges(raw_ostream &OS, const DWARFAddressRangesVector& Ranges,
- unsigned AddressSize, unsigned Indent) {
- if (Ranges.empty())
- return;
-
- for (const auto &Range: Ranges) {
+static void dumpRanges(const DWARFObject &Obj, raw_ostream &OS,
+ const DWARFAddressRangesVector &Ranges,
+ unsigned AddressSize, unsigned Indent,
+ const DIDumpOptions &DumpOpts) {
+ StringMap<unsigned> SectionAmountMap;
+ std::vector<StringRef> SectionNames;
+ if (Obj.getFile() && !DumpOpts.Brief) {
+ for (const SectionRef &Section : Obj.getFile()->sections()) {
+ StringRef Name;
+ if (Section.getName(Name))
+ Name = "<error>";
+
+ ++SectionAmountMap[Name];
+ SectionNames.push_back(Name);
+ }
+ }
+
+ for (size_t I = 0; I < Ranges.size(); ++I) {
+ const DWARFAddressRange &R = Ranges[I];
+
OS << '\n';
OS.indent(Indent);
- OS << format("[0x%0*" PRIx64 " - 0x%0*" PRIx64 ")",
- AddressSize*2, Range.LowPC,
- AddressSize*2, Range.HighPC);
+ OS << format("[0x%0*" PRIx64 " - 0x%0*" PRIx64 ")", AddressSize * 2,
+ R.LowPC, AddressSize * 2, R.HighPC);
+
+ if (SectionNames.empty() || R.SectionIndex == -1ULL)
+ continue;
+
+ StringRef Name = R.SectionIndex < SectionNames.size()
+ ? SectionNames[R.SectionIndex]
+ : "<error>";
+ OS << format(" \"%s\"", Name.str().c_str());
+
+ // Print section index if there is more than one section with this name.
+ if (SectionAmountMap[Name] > 1)
+ OS << format(" [%u]", R.SectionIndex);
}
}
@@ -126,10 +153,11 @@
if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant())
dumpApplePropertyAttribute(OS, *OptVal);
} else if (Attr == DW_AT_ranges) {
- dumpRanges(OS, Die.getAddressRanges(), U->getAddressByteSize(),
- sizeof(BaseIndent)+Indent+4);
+ const DWARFObject &Obj = Die.getDwarfUnit()->getContext().getDWARFObj();
+ dumpRanges(Obj, OS, Die.getAddressRanges(), U->getAddressByteSize(),
+ sizeof(BaseIndent) + Indent + 4, DumpOpts);
}
-
+
OS << ")\n";
}