Index: llvm/docs/CommandGuide/llvm-objcopy.rst
===================================================================
--- llvm/docs/CommandGuide/llvm-objcopy.rst
+++ llvm/docs/CommandGuide/llvm-objcopy.rst
@@ -418,6 +418,7 @@
  - `load` = if the section has `SHT_NOBITS` type, mark it as a `SHT_PROGBITS`
    section.
  - `readonly` = if this flag is not specified, add the `SHF_WRITE` flag.
+ - `exclude` = add the `SHF_EXCLUDE` flag.
  - `code` = add the `SHF_EXECINSTR` flag.
  - `merge` = add the `SHF_MERGE` flag.
  - `strings` = add the `SHF_STRINGS` flag.
Index: llvm/test/tools/llvm-objcopy/ELF/rename-section-flag.test
===================================================================
--- llvm/test/tools/llvm-objcopy/ELF/rename-section-flag.test
+++ llvm/test/tools/llvm-objcopy/ELF/rename-section-flag.test
@@ -13,6 +13,9 @@
 # RUN: llvm-objcopy --rename-section=.foo=.bar,readonly  \
 # RUN:   --rename-section=.baz=.blah,readonly %t %t.readonly
 # RUN: llvm-readobj --sections %t.readonly | FileCheck %s --check-prefixes=CHECK,PROGBITS
+# RUN: llvm-objcopy --rename-section=.foo=.bar,exclude  \
+# RUN:   --rename-section=.baz=.blah,exclude %t %t.exclude
+# RUN: llvm-readobj --sections %t.exclude | FileCheck %s --check-prefixes=CHECK,PROGBITS,EXCLUDE,WRITE
 # RUN: llvm-objcopy --rename-section=.foo=.bar,debug  \
 # RUN:   --rename-section=.baz=.blah,debug %t %t.debug
 # RUN: llvm-readobj --sections %t.debug | FileCheck %s --check-prefixes=CHECK,PROGBITS,WRITE
@@ -45,6 +48,9 @@
 # RUN: llvm-objcopy --rename-section=.foo=.bar,alloc,code  \
 # RUN:   --rename-section=.baz=.blah,alloc,code %t %t.alloc_code
 # RUN: llvm-readobj --sections %t.alloc_code | FileCheck %s --check-prefixes=CHECK,NOBITS,ALLOC,EXEC,WRITE
+# RUN: llvm-objcopy --rename-section=.foo=.bar,contents,readonly,exclude  \
+# RUN:   --rename-section=.baz=.blah,contents,readonly,exclude %t %t.contents_ro_exclude
+# RUN: llvm-readobj --sections %t.contents_ro_exclude | FileCheck %s --check-prefixes=CHECK,PROGBITS,EXCLUDE
 
 # Invalid flags:
 # RUN: not llvm-objcopy --rename-section=.foo=.bar,xyzzy %t %t.xyzzy 2>&1 | FileCheck %s --check-prefix=BAD-FLAG
@@ -81,6 +87,7 @@
 # EXEC-NEXT:       SHF_EXECINSTR (0x4)
 # MERGE-NEXT:      SHF_MERGE (0x10)
 # STRINGS-NEXT:    SHF_STRINGS (0x20)
+# EXCLUDE-NEXT:    SHF_EXCLUDE (0x80000000)
 # WRITE-NEXT:      SHF_WRITE (0x1)
 # CHECK-NEXT:    ]
 
@@ -92,7 +99,8 @@
 # EXEC-NEXT:       SHF_EXECINSTR (0x4)
 # MERGE-NEXT:      SHF_MERGE (0x10)
 # STRINGS-NEXT:    SHF_STRINGS (0x20)
+# EXCLUDE-NEXT:    SHF_EXCLUDE (0x80000000)
 # WRITE-NEXT:      SHF_WRITE (0x1)
 # CHECK-NEXT:    ]
 
-# BAD-FLAG: unrecognized section flag 'xyzzy'. Flags supported for GNU compatibility: alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings
+# BAD-FLAG: unrecognized section flag 'xyzzy'. Flags supported for GNU compatibility: alloc, load, noload, readonly, exclude, debug, code, data, rom, share, contents, merge, strings
Index: llvm/test/tools/llvm-objcopy/ELF/set-section-flags.test
===================================================================
--- llvm/test/tools/llvm-objcopy/ELF/set-section-flags.test
+++ llvm/test/tools/llvm-objcopy/ELF/set-section-flags.test
@@ -13,6 +13,9 @@
 # RUN: llvm-objcopy --set-section-flags=.foo=readonly \
 # RUN:   --set-section-flags=.baz=readonly --set-section-flags=.rela.baz=readonly %t %t.readonly
 # RUN: llvm-readobj --sections %t.readonly | FileCheck %s --check-prefixes=CHECK,PROGBITS
+# RUN: llvm-objcopy --set-section-flags=.foo=exclude \
+# RUN:   --set-section-flags=.baz=exclude --set-section-flags=.rela.baz=exclude %t %t.exclude
+# RUN: llvm-readobj --sections %t.exclude | FileCheck %s --check-prefixes=CHECK,PROGBITS,EXCLUDE,WRITE
 # RUN: llvm-objcopy --set-section-flags=.foo=debug \
 # RUN:   --set-section-flags=.baz=debug --set-section-flags=.rela.baz=debug %t %t.debug
 # RUN: llvm-readobj --sections %t.debug | FileCheck %s --check-prefixes=CHECK,PROGBITS,WRITE
@@ -47,6 +50,10 @@
 # RUN:   --set-section-flags=.baz=alloc,code \
 # RUN:   --set-section-flags=.rela.baz=alloc,code %t %t.alloc_code
 # RUN: llvm-readobj --sections %t.alloc_code | FileCheck %s --check-prefixes=CHECK,NOBITS,ALLOC,EXEC,WRITE
+# RUN: llvm-objcopy --set-section-flags=.foo=contents,readonly,exclude \
+# RUN:   --set-section-flags=.baz=contents,readonly,exclude \
+# RUN:   --set-section-flags=.rela.baz=contents,readonly,exclude %t %t.contents_ro_exclude
+# RUN: llvm-readobj --sections %t.contents_ro_exclude | FileCheck %s --check-prefixes=CHECK,PROGBITS,EXCLUDE
 
 # Invalid flags:
 # RUN: not llvm-objcopy --set-section-flags=.foo=xyzzy %t %t.xyzzy 2>&1 | FileCheck %s --check-prefix=BAD-FLAG
@@ -93,6 +100,7 @@
 # EXEC-NEXT:       SHF_EXECINSTR (0x4)
 # MERGE-NEXT:      SHF_MERGE (0x10)
 # STRINGS-NEXT:    SHF_STRINGS (0x20)
+# EXCLUDE-NEXT:    SHF_EXCLUDE (0x80000000)
 # WRITE-NEXT:      SHF_WRITE (0x1)
 # CHECK-NEXT:    ]
 
@@ -104,6 +112,7 @@
 # EXEC-NEXT:       SHF_EXECINSTR (0x4)
 # MERGE-NEXT:      SHF_MERGE (0x10)
 # STRINGS-NEXT:    SHF_STRINGS (0x20)
+# EXCLUDE-NEXT:    SHF_EXCLUDE (0x80000000)
 # WRITE-NEXT:      SHF_WRITE (0x1)
 # CHECK-NEXT:    ]
 
@@ -114,10 +123,11 @@
 # EXEC-NEXT:       SHF_EXECINSTR (0x4)
 # MERGE-NEXT:      SHF_MERGE (0x10)
 # STRINGS-NEXT:    SHF_STRINGS (0x20)
+# EXCLUDE-NEXT:    SHF_EXCLUDE (0x80000000)
 # WRITE-NEXT:      SHF_WRITE (0x1)
 # CHECK-NEXT:    ]
 
 # BAD-FORMAT: bad format for --set-section-flags: missing '='
 # MULTIPLE-SETS: --set-section-flags set multiple times for section '.foo'
 
-# BAD-FLAG: unrecognized section flag 'xyzzy'. Flags supported for GNU compatibility: alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings
+# BAD-FLAG: unrecognized section flag 'xyzzy'. Flags supported for GNU compatibility: alloc, load, noload, readonly, exclude, debug, code, data, rom, share, contents, merge, strings
Index: llvm/tools/llvm-objcopy/CopyConfig.h
===================================================================
--- llvm/tools/llvm-objcopy/CopyConfig.h
+++ llvm/tools/llvm-objcopy/CopyConfig.h
@@ -69,7 +69,8 @@
   SecStrings = 1 << 9,
   SecContents = 1 << 10,
   SecShare = 1 << 11,
-  LLVM_MARK_AS_BITMASK_ENUM(/* LargestValue = */ SecShare)
+  SecExclude = 1 << 12,
+  LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/SecExclude)
 };
 
 struct SectionRename {
Index: llvm/tools/llvm-objcopy/CopyConfig.cpp
===================================================================
--- llvm/tools/llvm-objcopy/CopyConfig.cpp
+++ llvm/tools/llvm-objcopy/CopyConfig.cpp
@@ -146,6 +146,7 @@
       .CaseLower("strings", SectionFlag::SecStrings)
       .CaseLower("contents", SectionFlag::SecContents)
       .CaseLower("share", SectionFlag::SecShare)
+      .CaseLower("exclude", SectionFlag::SecExclude)
       .Default(SectionFlag::SecNone);
 }
 
@@ -158,8 +159,8 @@
       return createStringError(
           errc::invalid_argument,
           "unrecognized section flag '%s'. Flags supported for GNU "
-          "compatibility: alloc, load, noload, readonly, debug, code, data, "
-          "rom, share, contents, merge, strings",
+          "compatibility: alloc, load, noload, readonly, exclude, debug, code, "
+          "data, rom, share, contents, merge, strings",
           Flag.str().c_str());
     ParsedFlags |= ParsedFlag;
   }
Index: llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
===================================================================
--- llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
+++ llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
@@ -83,6 +83,8 @@
     NewFlags |= ELF::SHF_MERGE;
   if (AllFlags & SectionFlag::SecStrings)
     NewFlags |= ELF::SHF_STRINGS;
+  if (AllFlags & SectionFlag::SecExclude)
+    NewFlags |= ELF::SHF_EXCLUDE;
   return NewFlags;
 }
 
@@ -90,11 +92,10 @@
                                             uint64_t NewFlags) {
   // Preserve some flags which should not be dropped when setting flags.
   // Also, preserve anything OS/processor dependant.
-  const uint64_t PreserveMask = ELF::SHF_COMPRESSED | ELF::SHF_EXCLUDE |
-                                ELF::SHF_GROUP | ELF::SHF_LINK_ORDER |
-                                ELF::SHF_MASKOS | ELF::SHF_MASKPROC |
-                                ELF::SHF_TLS | ELF::SHF_INFO_LINK;
-  return (OldFlags & PreserveMask) | (NewFlags & ~PreserveMask);
+  const uint64_t PreserveMask =
+      ELF::SHF_COMPRESSED | ELF::SHF_GROUP | ELF::SHF_LINK_ORDER |
+      ELF::SHF_MASKOS | ELF::SHF_MASKPROC | ELF::SHF_TLS | ELF::SHF_INFO_LINK;
+  return (OldFlags & PreserveMask) | NewFlags;
 }
 
 static void setSectionFlagsAndType(SectionBase &Sec, SectionFlag Flags) {