[dwarfdump] Dump DW_AT_ranges values inline in the debug_info dump.

The output looks like that: DW_AT_ranges [FORM_data4] (0x00000000 [0x00000001000024a0 - 0x00000001000024c2) [0x0000000100002505 - 0x000000010000268b)) Differential Revision: http://reviews.llvm.org/D5712 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220466 91177308-0d34-0410-b5e6-96231b3b80d8
hansen0730 · Oct 23, 2014 · 9970b0f · 9970b0f
1 parent bdc3a5b
commit 9970b0f
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Showing 5 changed files with 36 additions and 4 deletions.
diff --git a/lib/DebugInfo/DWARFDebugInfoEntry.cpp b/lib/DebugInfo/DWARFDebugInfoEntry.cpp
@@ -88,12 +88,27 @@ static void dumpApplePropertyAttribute(raw_ostream &OS, uint64_t Val) {
   OS << ")";
 }
 
+static void dumpRanges(raw_ostream &OS, const DWARFAddressRangesVector& Ranges,
+                       unsigned AddressSize, unsigned Indent) {
+  if (Ranges.empty())
+    return;
+
+  for (const auto &Range: Ranges) {
+    OS << '\n';
+    OS.indent(Indent);
+    OS << format("[0x%0*" PRIx64 " - 0x%0*" PRIx64 ")",
+                 AddressSize*2, Range.first,
+                 AddressSize*2, Range.second);
+  }
+}
+
 void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
                                                DWARFUnit *u,
                                                uint32_t *offset_ptr,
                                                uint16_t attr, uint16_t form,
                                                unsigned indent) const {
-  OS << "            ";
+  const char BaseIndent[] = "            ";
+  OS << BaseIndent;
   OS.indent(indent+2);
   const char *attrString = AttributeString(attr);
   if (attrString)
@@ -149,6 +164,9 @@ void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
   } else if (attr == DW_AT_APPLE_property_attribute) {
     if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant())
       dumpApplePropertyAttribute(OS, *OptVal);
+  } else if (attr == DW_AT_ranges) {
+    dumpRanges(OS, getAddressRanges(u), u->getAddressByteSize(),
+               sizeof(BaseIndent)+indent+4);
   }
 
   OS << ")\n";

diff --git a/test/DebugInfo/Inputs/gmlt.ll b/test/DebugInfo/Inputs/gmlt.ll
@@ -14,7 +14,7 @@
 ;    describes those subprograms
 
 ; CHECK: DW_TAG_compile_unit
-; CHECK:   DW_AT_ranges [DW_FORM_sec_offset] (0x00000000)
+; CHECK:   DW_AT_ranges [DW_FORM_sec_offset] (0x00000000
 ; CHECK-NOT: {{DW_TAG|NULL}}
 
 ; Omitting the subprograms without inlined subroutines is not possible

diff --git a/test/DebugInfo/X86/fission-ranges.ll b/test/DebugInfo/X86/fission-ranges.ll
@@ -16,7 +16,7 @@
 ; CHECK: DW_AT_location [DW_FORM_sec_offset]   ([[E:0x[0-9a-z]*]])
 ; CHECK: DW_AT_location [DW_FORM_sec_offset]   ([[B:0x[0-9a-z]*]])
 ; CHECK: DW_AT_location [DW_FORM_sec_offset]   ([[D:0x[0-9a-z]*]])
-; CHECK: DW_AT_ranges [DW_FORM_sec_offset]   (0x00000000)
+; CHECK: DW_AT_ranges [DW_FORM_sec_offset]   (0x00000000
 ; CHECK: .debug_loc contents:
 ; CHECK-NOT: Beginning address offset
 ; CHECK: .debug_loc.dwo contents:

diff --git a/test/DebugInfo/dwarfdump-ranges.test b/test/DebugInfo/dwarfdump-ranges.test
@@ -1,5 +1,19 @@
 RUN: llvm-dwarfdump %p/Inputs/dwarfdump-test4.elf-x86-64 | FileCheck %s
 
+CHECK: .debug_info contents:
+CHECK: DW_TAG_compile_unit
+CHECK-NOT: TAG
+CHECK:  DW_AT_ranges [DW_FORM_data4]      (0x00000000
+CHECK-NEXT:          [0x000000000000062c - 0x0000000000000637)
+CHECK-NEXT:          [0x0000000000000637 - 0x000000000000063d))
+
+CHECK: DW_TAG_compile_unit
+CHECK-NOT: TAG
+CHECK:  DW_AT_ranges [DW_FORM_data4]      (0x00000030
+CHECK-NEXT:          [0x0000000000000640 - 0x000000000000064b)
+CHECK-NEXT:          [0x0000000000000637 - 0x000000000000063d))
+
+
 CHECK:      .debug_ranges contents:
 CHECK-NEXT: 00000000 000000000000062c 0000000000000637
 CHECK-NEXT: 00000000 0000000000000637 000000000000063d

diff --git a/test/MC/ARM/dwarf-asm-multiple-sections.s b/test/MC/ARM/dwarf-asm-multiple-sections.s
@@ -25,7 +25,7 @@ b:
 // DWARF: .debug_info contents:
 // DWARF: 0x{{[0-9a-f]+}}: DW_TAG_compile_unit [1]
 // CHECK-NOT-DWARF: DW_TAG_
-// DWARF: DW_AT_ranges [DW_FORM_data4]      (0x00000000)
+// DWARF: DW_AT_ranges [DW_FORM_data4]      (0x00000000
 
 // DWARF: 0x{{[0-9a-f]+}}:   DW_TAG_label [2] *
 // DWARF-NEXT: DW_AT_name [DW_FORM_string]     ("a")