Index: test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shinfo-reference.test
===================================================================
--- /dev/null
+++ test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shinfo-reference.test
@@ -0,0 +1,30 @@
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy -R .got.plt %t %t2
+
+## .rela.plt is a dynamic relocation section that has a connection
+## via sh_info field with its target section .got.plt.
+## Here we check that if the target section is removed then dynamic
+## relocation section is also removed and we do not end up with a broken
+## sh_info value, for example.
+
+# RUN: llvm-readelf --sections %t2 | \
+# RUN:   FileCheck %s --implicit-check-not=".got.plt" --implicit-check-not=".rela.plt"
+
+--- !ELF
+FileHeader:
+  Class:          ELFCLASS64
+  Data:           ELFDATA2LSB
+  Type:           ET_DYN
+  Machine:        EM_X86_64
+Sections:
+  - Name:         .rela.plt
+    Type:         SHT_RELA
+    Flags:        [ SHF_ALLOC ]
+    Link:         .dynsym
+    Info:         .got.plt
+  - Name:         .got.plt
+    Type:         SHT_PROGBITS
+    Flags:        [ SHF_WRITE, SHF_ALLOC ]
+DynamicSymbols:
+  - Name:          bar
+    Binding:       STB_GLOBAL
Index: test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test
===================================================================
--- /dev/null
+++ test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test
@@ -0,0 +1,29 @@
+# RUN: yaml2obj %s > %t
+
+## Check we cannot remove the .dynsym symbol table because dynamic
+## relocation section .rela.dyn still references it via sh_link field.
+# RUN: not llvm-objcopy -R .dynsym %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# ERR: error: Symbol table .dynsym cannot be removed because it is referenced by the relocation section .rela.dyn.
+
+## Check we can remove .dynsym after removing the reference.
+# RUN: llvm-objcopy -R .dynsym -R .rela.dyn %t %t2
+# RUN: llvm-readelf --sections %t2 | FileCheck %s --implicit-check-not=".dynsym"
+
+!ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_DYN
+  Machine:         EM_X86_64
+Sections:
+  - Name:          .rela.dyn
+    Type:          SHT_RELA
+    Flags:         [ SHF_ALLOC ]
+    Address:       0x0000000000000270
+    Link:          .dynsym
+## TODO: zero Info field should not be needed.
+    Info:          0
+    EntSize:       0x0000000000000018
+DynamicSymbols:
+  - Name:          bar
+    Binding:       STB_GLOBAL
Index: tools/llvm-objcopy/ELF/Object.h
===================================================================
--- tools/llvm-objcopy/ELF/Object.h
+++ tools/llvm-objcopy/ELF/Object.h
@@ -684,6 +684,8 @@
 
   void accept(SectionVisitor &) const override;
   void accept(MutableSectionVisitor &Visitor) override;
+  Error removeSectionReferences(
+      function_ref<bool(const SectionBase *)> ToRemove) override;
 
   static bool classof(const SectionBase *S) {
     if (!(S->Flags & ELF::SHF_ALLOC))
Index: tools/llvm-objcopy/ELF/Object.cpp
===================================================================
--- tools/llvm-objcopy/ELF/Object.cpp
+++ tools/llvm-objcopy/ELF/Object.cpp
@@ -667,6 +667,23 @@
   Visitor.visit(*this);
 }
 
+Error DynamicRelocationSection::removeSectionReferences(
+    function_ref<bool(const SectionBase *)> ToRemove) {
+  if (ToRemove(Symbols))
+    return createStringError(llvm::errc::invalid_argument,
+                             "Symbol table %s cannot be removed because it is "
+                             "referenced by the relocation section %s.",
+                             Symbols->Name.data(), this->Name.data());
+
+  // SecToApplyRel contains a section referenced by sh_info field. It keeps
+  // a section to which the relocation section applies. When we remove any
+  // sections we also remove their relocation sections. Since we do that much
+  // earlier, this assert should never be triggered.
+  assert(!SecToApplyRel || !ToRemove(SecToApplyRel));
+
+  return Error::success();
+}
+
 Error Section::removeSectionReferences(
     function_ref<bool(const SectionBase *)> ToRemove) {
   if (ToRemove(LinkSection))