4 files changed, 46 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 713a9763a7f..0ff1b5004d9 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -851,7 +851,8 @@ bool DwarfCompileUnit::hasDwarfPubSections() const {
   if (CUNode->getGnuPubnames())
     return true;
 
-  return DD->tuneForGDB() && !includeMinimalInlineScopes();
+  return DD->tuneForGDB() && DD->usePubSections() &&
+         !includeMinimalInlineScopes();
 }
 
 /// addGlobalName - Add a new global name to the compile unit.
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index a1e9a01e72b..b9a17d5018c 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -123,6 +123,11 @@ DwarfInlinedStrings("dwarf-inlined-strings", cl::Hidden,
                             clEnumVal(Disable, "Disabled")),
                  cl::init(Default));
 
+static cl::opt<bool>
+    NoDwarfPubSections("no-dwarf-pub-sections", cl::Hidden,
+                       cl::desc("Disable emission of DWARF pub sections."),
+                       cl::init(false));
+
 enum LinkageNameOption {
   DefaultLinkageNames,
   AllLinkageNames,
@@ -310,6 +315,8 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
   // Use dwarf 4 by default if nothing is requested.
   DwarfVersion = DwarfVersion ? DwarfVersion : dwarf::DWARF_VERSION;
 
+  UsePubSections = !NoDwarfPubSections;
+
   // Work around a GDB bug. GDB doesn't support the standard opcode;
   // SCE doesn't support GNU's; LLDB prefers the standard opcode, which
   // is defined as of DWARF 3.
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index c8a36baffe3..56a1d633729 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -258,6 +258,9 @@ class DwarfDebug : public DebugHandlerBase {
   /// Use inlined strings.
   bool UseInlineStrings = false;
 
+  /// Whether to emit DWARF pub sections or not.
+  bool UsePubSections = true;
+
   /// DWARF5 Experimental Options
   /// @{
   bool HasDwarfAccelTables;
@@ -501,6 +504,9 @@ public:
   /// Returns whether to use inline strings.
   bool useInlineStrings() const { return UseInlineStrings; }
 
+  /// Returns whether GNU oub sections should be emitted.
+  bool usePubSections() const { return UsePubSections; }
+
   // Experimental DWARF5 features.
 
   /// Returns whether or not to emit tables that dwarf consumers can
diff --git a/llvm/test/DebugInfo/X86/no-public-sections.ll b/llvm/test/DebugInfo/X86/no-public-sections.ll
new file mode 100644
index 00000000000..75fbd398acd
--- /dev/null
+++ b/llvm/test/DebugInfo/X86/no-public-sections.ll
@@ -0,0 +1,31 @@
+; RUN: llc -mtriple=x86_64-pc-linux-gnu -debugger-tune=gdb -filetype=asm < %s -no-dwarf-pub-sections | FileCheck %s --check-prefix=DISABLED
+; RUN: llc -mtriple=x86_64-pc-linux-gnu -debugger-tune=gdb -filetype=asm < %s | FileCheck %s
+
+; DISABLED-NOT: {{.debug_pubnames|.debug_pubtypes}}
+; CHECK-DAG: .section .debug_pubnames
+; CHECK-DAG: .section .debug_pubtypes
+
+%struct.bar = type { %"struct.ns::foo" }
+%"struct.ns::foo" = type { i8 }
+
+@b = global %struct.bar zeroinitializer, align 1, !dbg !0
+
+!llvm.dbg.cu = !{!2}
+!llvm.module.flags = !{!11, !12}
+!llvm.ident = !{!13}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true)
+!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, gnuPubnames: false)
+!3 = !DIFile(filename: "type.cpp", directory: "/tmp/dbginfo")
+!4 = !{}
+!5 = !{!0}
+!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "bar", file: !3, line: 5, size: 8, elements: !7, identifier: "_ZTS3bar")
+!7 = !{!8}
+!8 = !DIDerivedType(tag: DW_TAG_member, name: "f", scope: !6, file: !3, line: 6, baseType: !9, size: 8)
+!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "foo", scope: !10, file: !3, line: 2, size: 8, elements: !4, identifier: "_ZTSN2ns3fooE")
+!10 = !DINamespace(name: "ns", scope: null)
+!11 = !{i32 2, !"Dwarf Version", i32 4}
+!12 = !{i32 2, !"Debug Info Version", i32 3}
+!13 = !{!"clang"}
+