Index: test/tools/llvm-objcopy/prefix-sections.test
===================================================================
--- /dev/null
+++ test/tools/llvm-objcopy/prefix-sections.test
@@ -0,0 +1,58 @@
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy --prefix-sections .prefix %t %t2
+# RUN: llvm-readobj -sections %t2 | FileCheck %s
+
+!ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_REL
+  Machine:         EM_X86_64
+Sections:
+  - Name:            .foo
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+  - Name:            .bar
+    Type:            SHT_DYNAMIC
+    Flags:           [ SHF_WRITE ]
+  - Name:            .foobar
+    Type:            SHT_STRTAB
+
+# CHECK: Sections [
+# CHECK-NEXT:   Section {
+# CHECK-NEXT:     Index: 0
+# CHECK-NEXT:     Name:  (0)
+# CHECK-NEXT:     Type: SHT_NULL
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:     ]
+# CHECK-NEXT:     Address: 0x0
+# CHECK-NEXT:     Offset: 0x0
+# CHECK-NEXT:     Size: 0
+# CHECK-NEXT:     Link: 0
+# CHECK-NEXT:     Info: 0
+# CHECK-NEXT:     AddressAlignment: 0
+# CHECK-NEXT:     EntrySize: 0
+# CHECK-NEXT:   }
+# CHECK-NEXT:   Section {
+# CHECK-NEXT:     Index: 1
+# CHECK-NEXT:     Name: .prefix.foo
+# CHECK-NEXT:     Type: SHT_PROGBITS
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:       SHF_ALLOC
+# CHECK-NEXT:       SHF_EXECINSTR
+# CHECK-NEXT:     ]
+# CHECK:   }
+# CHECK-NEXT:   Section {
+# CHECK-NEXT:     Index: 2
+# CHECK-NEXT:     Name: .prefix.bar
+# CHECK-NEXT:     Type: SHT_DYNAMIC
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:       SHF_WRITE
+# CHECK-NEXT:     ]
+# CHECK:   }
+# CHECK-NEXT:   Section {
+# CHECK-NEXT:     Index: 3
+# CHECK-NEXT:     Name: .foobar
+# CHECK-NEXT:     Type: SHT_STRTAB
+# CHECK-NEXT:     Flags [
+# CHECK-NEXT:     ]
Index: tools/llvm-objcopy/ObjcopyOpts.td
===================================================================
--- tools/llvm-objcopy/ObjcopyOpts.td
+++ tools/llvm-objcopy/ObjcopyOpts.td
@@ -102,3 +102,6 @@
                       HelpText<"Remove all symbols not needed by relocations">;
 def keep_file_symbols : Flag<["-", "--"], "keep-file-symbols">,
                       HelpText<"Do not remove file symbols">;
+defm prefix_sections : Eq<"prefix-sections">,
+                       MetaVarName<"prefix">,
+                       HelpText<"Add <prefix> to the start of every section name">;
Index: tools/llvm-objcopy/Object.h
===================================================================
--- tools/llvm-objcopy/Object.h
+++ tools/llvm-objcopy/Object.h
@@ -233,7 +233,7 @@
 
 class SectionBase {
 public:
-  StringRef Name;
+  std::string Name;
   Segment *ParentSegment = nullptr;
   uint64_t HeaderOffset;
   uint64_t OriginalOffset = std::numeric_limits<uint64_t>::max();
Index: tools/llvm-objcopy/llvm-objcopy.cpp
===================================================================
--- tools/llvm-objcopy/llvm-objcopy.cpp
+++ tools/llvm-objcopy/llvm-objcopy.cpp
@@ -133,6 +133,7 @@
 
   StringRef SplitDWO;
   StringRef AddGnuDebugLink;
+  StringRef SectionsPrefix;
   std::vector<StringRef> ToRemove;
   std::vector<StringRef> Keep;
   std::vector<StringRef> OnlyKeep;
@@ -270,13 +271,17 @@
   return SR;
 }
 
+static inline bool StartsWith(std::string S1, StringRef S2) {
+  return std::equal(S2.begin(), S2.end(), S1.begin());
+}
+
 static bool IsDebugSection(const SectionBase &Sec) {
-  return Sec.Name.startswith(".debug") || Sec.Name.startswith(".zdebug") ||
+  return StartsWith(Sec.Name, ".debug") || StartsWith(Sec.Name, ".zdebug") ||
          Sec.Name == ".gdb_index";
 }
 
 static bool IsDWOSection(const SectionBase &Sec) {
-  return Sec.Name.endswith(".dwo");
+  return StringRef(Sec.Name).endswith(".dwo");
 }
 
 static bool OnlyKeepDWOPred(const Object &Obj, const SectionBase &Sec) {
@@ -465,7 +470,7 @@
         return true;
       if (&Sec == Obj.SectionNames)
         return false;
-      if (Sec.Name.startswith(".gnu.warning"))
+      if (StartsWith(Sec.Name, ".gnu.warning"))
         return false;
       return (Sec.Flags & SHF_ALLOC) == 0;
     };
@@ -557,6 +562,13 @@
 
   if (!Config.AddGnuDebugLink.empty())
     Obj.addSection<GnuDebugLinkSection>(Config.AddGnuDebugLink);
+
+  if (!Config.SectionsPrefix.empty()) {
+    for (auto &Sec : Obj.sections()) {
+      if (Sec.Type != SHT_STRTAB && Sec.Type != SHT_SYMTAB)
+        Sec.Name = Config.SectionsPrefix.str() + Sec.Name;
+    }
+  }
 }
 
 static void ExecuteElfObjcopyOnBinary(const CopyConfig &Config, Binary &Binary,
@@ -688,6 +700,7 @@
 
   Config.SplitDWO = InputArgs.getLastArgValue(OBJCOPY_split_dwo);
   Config.AddGnuDebugLink = InputArgs.getLastArgValue(OBJCOPY_add_gnu_debuglink);
+  Config.SectionsPrefix = InputArgs.getLastArgValue(OBJCOPY_prefix_sections);
 
   for (auto Arg : InputArgs.filtered(OBJCOPY_redefine_symbol)) {
     if (!StringRef(Arg->getValue()).contains('='))