[llvm-objdump] Add column headers for relocation printing

This allows us better readability and compatibility with what GNU
objdump prints.

Fixes https://bugs.llvm.org/show_bug.cgi?id=43941

Reviewed by: jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D72992

1 files changed, 8 insertions, 2 deletions

diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index a1c37bc..a82fbb2 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -1645,6 +1645,11 @@ void printRelocations(const ObjectFile *Obj) {
   for (std::pair<SectionRef, std::vector<SectionRef>> &P : SecToRelSec) {
     StringRef SecName = unwrapOrError(P.first.getName(), Obj->getFileName());
     outs() << "RELOCATION RECORDS FOR [" << SecName << "]:\n";
+    uint32_t OffsetPadding = (Obj->getBytesInAddress() > 4 ? 16 : 8);
+    uint32_t TypePadding = 24;
+    outs() << left_justify("OFFSET", OffsetPadding) << " "
+           << left_justify("TYPE", TypePadding) << " "
+           << "VALUE\n";
 
     for (SectionRef Section : P.second) {
       for (const RelocationRef &Reloc : Section.relocations()) {
@@ -1657,8 +1662,9 @@ void printRelocations(const ObjectFile *Obj) {
         if (Error E = getRelocationValueString(Reloc, ValueStr))
           reportError(std::move(E), Obj->getFileName());
 
-        outs() << format(Fmt.data(), Address) << " " << RelocName << " "
-               << ValueStr << "\n";
+        outs() << format(Fmt.data(), Address) << " "
+               << left_justify(RelocName, TypePadding) << " " << ValueStr
+               << "\n";
       }
     }
     outs() << "\n";