Index: llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections.test
===================================================================
--- /dev/null
+++ llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections.test
@@ -0,0 +1,64 @@
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy --prefix-alloc-sections=.alloc_prefix %t %t2
+# RUN: llvm-readobj --sections --relocs %t2 | FileCheck %s
+
+!ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_REL
+  Machine:         EM_X86_64
+Sections:
+  - Name:            .foo
+    Type:            SHT_PROGBITS
+    Flags:           [  ]
+  - Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+  - Name:            .data
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+  - Name:            .rel.text
+    Type:            SHT_REL
+    Info:            .text
+  - Name:            .rela.data
+    Type:            SHT_RELA
+    Info:            .data
+  - Name:            .plt
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+  - Name:            .got.plt
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+  - Name:            .rela.plt
+    Type:            SHT_RELA
+    Flags:           [ SHF_ALLOC ]
+    Info:            .got.plt
+    Link:            .dynsym
+  - Name:            .dynsym
+    Type:            SHT_DYNSYM
+    Flags:           [ SHF_ALLOC ]
+    Link:            .dynstr
+  - Name:            .dynstr
+    Type:            SHT_STRTAB
+    Flags:           [ SHF_ALLOC ]
+    Content:         "00"
+
+# CHECK: Sections [
+# CHECK: Name: .foo
+# CHECK: Name: .alloc_prefix.text
+# CHECK: Name: .alloc_prefix.data
+# CHECK: Name: .rel.alloc_prefix.text
+# CHECK: Name: .rela.alloc_prefix.data
+# CHECK: Name: .alloc_prefix.plt
+# CHECK: Name: .alloc_prefix.rela.plt
+# CHECK: ]
+
+# CHECK: Relocations [
+# CHECK:   Section (4) .rel.alloc_prefix.text {
+# CHECK:   }
+# CHECK:   Section (5) .rela.alloc_prefix.data {
+# CHECK:   }
+# CHECK:   Section (8) .alloc_prefix.rela.plt {
+# CHECK:   }
+# CHECK: ]
Index: llvm/test/tools/llvm-objcopy/ELF/rename-section-and-prefix-alloc-sections.test
===================================================================
--- /dev/null
+++ llvm/test/tools/llvm-objcopy/ELF/rename-section-and-prefix-alloc-sections.test
@@ -0,0 +1,28 @@
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy --rename-section=.text=.text2 --prefix-alloc-sections=.alloc_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:           [  ]
+  - Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+  - Name:            .rel.text
+    Type:            SHT_REL
+    Info:            .text
+  - Name:            .bar
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC ]
+
+# CHECK: Name: .foo
+# CHECK: Name: .alloc_prefix.text2
+# CHECK: Name: .rel.alloc_prefix.text2
+# CHECK: Name: .alloc_prefix.bar
Index: llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
===================================================================
--- llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
+++ llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
@@ -176,7 +176,8 @@
 
   if (!Config.BuildIdLinkDir.empty() || Config.BuildIdLinkInput ||
       Config.BuildIdLinkOutput || !Config.SplitDWO.empty() ||
-      !Config.SymbolsPrefix.empty() || !Config.AddSection.empty() ||
+      !Config.SymbolsPrefix.empty() || !Config.AllocSectionsPrefix.empty() ||
+      !Config.AddSection.empty() ||
       !Config.DumpSection.empty() || !Config.KeepSection.empty() ||
       !Config.SymbolsToGlobalize.empty() || !Config.SymbolsToKeep.empty() ||
       !Config.SymbolsToLocalize.empty() || !Config.SymbolsToWeaken.empty() ||
Index: llvm/tools/llvm-objcopy/CopyConfig.h
===================================================================
--- llvm/tools/llvm-objcopy/CopyConfig.h
+++ llvm/tools/llvm-objcopy/CopyConfig.h
@@ -113,6 +113,7 @@
   Optional<StringRef> BuildIdLinkOutput;
   StringRef SplitDWO;
   StringRef SymbolsPrefix;
+  StringRef AllocSectionsPrefix;
   DiscardType DiscardMode = DiscardType::None;
 
   // Repeated options
Index: llvm/tools/llvm-objcopy/CopyConfig.cpp
===================================================================
--- llvm/tools/llvm-objcopy/CopyConfig.cpp
+++ llvm/tools/llvm-objcopy/CopyConfig.cpp
@@ -473,6 +473,8 @@
         InputArgs.getLastArgValue(OBJCOPY_build_id_link_output);
   Config.SplitDWO = InputArgs.getLastArgValue(OBJCOPY_split_dwo);
   Config.SymbolsPrefix = InputArgs.getLastArgValue(OBJCOPY_prefix_symbols);
+  Config.AllocSectionsPrefix =
+      InputArgs.getLastArgValue(OBJCOPY_prefix_alloc_sections);
 
   for (auto Arg : InputArgs.filtered(OBJCOPY_redefine_symbol)) {
     if (!StringRef(Arg->getValue()).contains('='))
Index: llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
===================================================================
--- llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
+++ llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
@@ -620,6 +620,43 @@
       NewSection.Type = SHT_NOTE;
   }
 
+  if (!Config.AllocSectionsPrefix.empty()) {
+    for (auto &Sec : Obj.sections()) {
+      if ((Sec.Flags & SHF_ALLOC) != 0) {
+        Sec.Name = (Config.AllocSectionsPrefix + Sec.Name).str();
+
+      // Rename relocation sections associated to the allocated sections. For
+      // example, if we rename .text to .prefix.text, we also rename .rel.text
+      // to .rel.prefix.text.
+      //
+      // Dynamic relocation sections (SHT_REL[A] with SHF_ALLOC) are handled
+      // in above, e.g., .rela.plt  is renamed to .prefix.rela.plt, not
+      // .rela.prefix.plt since GNU objcopy does so.
+      } else if (isa<RelocationSectionBase>(&Sec)) {
+        auto *TargetSec = dyn_cast<RelocationSectionBase>(&Sec)->getSection();
+        if (TargetSec && (TargetSec->Flags & SHF_ALLOC) != 0) {
+          StringRef prefix;
+          switch (Sec.Type) {
+          case SHT_REL:
+            prefix = ".rel";
+            break;
+          case SHT_RELA:
+            prefix = ".rela";
+            break;
+          default:
+            continue;
+          }
+
+          if (TargetSec->Name.find(Config.AllocSectionsPrefix) == 0)
+            Sec.Name = (prefix + TargetSec->Name).str();
+          else
+            Sec.Name =
+                (prefix + Config.AllocSectionsPrefix + TargetSec->Name).str();
+        }
+      }
+    }
+  }
+
   for (const auto &Flag : Config.DumpSection) {
     std::pair<StringRef, StringRef> SecPair = Flag.split("=");
     StringRef SecName = SecPair.first;
Index: llvm/tools/llvm-objcopy/ObjcopyOpts.td
===================================================================
--- llvm/tools/llvm-objcopy/ObjcopyOpts.td
+++ llvm/tools/llvm-objcopy/ObjcopyOpts.td
@@ -231,6 +231,10 @@
     : Eq<"prefix-symbols", "Add <prefix> to the start of every symbol name">,
       MetaVarName<"prefix">;
 
+defm prefix_alloc_sections
+    : Eq<"prefix-alloc-sections", "Add <prefix> to the start of every allocated section name">,
+      MetaVarName<"prefix">;
+
 def version : Flag<["-", "--"], "version">,
               HelpText<"Print the version and exit.">;
 def V : Flag<["-"], "V">, Alias<version>;