[llvm-dwarfdump] - Change format for .gdb_index dump.

It is useful to output size of ranges when address ranges
section of .gdb_index is dumped.

It helps to compare outputs produced by different linkers,
for example. In that case address ranges can look very different,
when they are the same at fact. Difference comes from different
low address because of different address of .text.

Differential revision: https://reviews.llvm.org/D32492

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301527 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp b/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
index 76354a9..0625d01 100644 (file)
--- a/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
+++ b/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
@@ -39,8 +39,9 @@ void DWARFGdbIndex::dumpAddressArea(raw_ostream &OS) const {
      << '\n';
   for (const AddressEntry &Addr : AddressArea)
     OS << format(
-        "    Low address = 0x%llx, High address = 0x%llx, CU index = %d\n",
-        Addr.LowAddress, Addr.HighAddress, Addr.CuIndex);
+        "    Low/High address = [0x%llx, 0x%llx) (Size: 0x%llx), CU id = %d\n",
+        Addr.LowAddress, Addr.HighAddress, Addr.HighAddress - Addr.LowAddress,
+        Addr.CuIndex);
 }
 
 void DWARFGdbIndex::dumpSymbolTable(raw_ostream &OS) const {

diff --git a/test/DebugInfo/dwarfdump-dump-gdbindex.test b/test/DebugInfo/dwarfdump-dump-gdbindex.test
index 7bdf6ed..6f1ef7c 100644 (file)
--- a/test/DebugInfo/dwarfdump-dump-gdbindex.test
+++ b/test/DebugInfo/dwarfdump-dump-gdbindex.test
@@ -18,8 +18,8 @@ RUN: llvm-dwarfdump -debug-dump=gdb_index %p/Inputs/dwarfdump-gdbindex-v7.elf-x8
 ; CHECK-NEXT:   1: Offset = 0x34, Length = 0x34
 
 ; CHECK:      Address area offset = 0x38, has 2 entries:
-; CHECK-NEXT:   Low address = 0x4000e8, High address = 0x4000f3, CU index = 0
-; CHECK-NEXT:   Low address = 0x4000f3, High address = 0x4000fe, CU index = 1
+; CHECK-NEXT:   Low/High address = [0x4000e8, 0x4000f3) (Size: 0xb), CU id = 0
+; CHECK-NEXT:   Low/High address = [0x4000f3, 0x4000fe) (Size: 0xb), CU id = 1
 
 ; CHECK:      Symbol table offset = 0x60, size = 1024, filled slots:
 ; CHECK-NEXT:   489: Name offset = 0x1d, CU vector offset = 0x0