diff --git a/llvm/test/tools/llvm-objcopy/ELF/dump-section.test b/llvm/test/tools/llvm-objcopy/ELF/dump-section.test
--- a/llvm/test/tools/llvm-objcopy/ELF/dump-section.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/dump-section.test
@@ -59,3 +59,8 @@
 # RUN:   FileCheck %s --check-prefix=ERR -DFILE=%t -DSECTION=.missing
 
 # ERR: error: '[[FILE]]': section '[[SECTION]]' not found
+
+# RUN: not llvm-objcopy --dump-section .text %t /dev/null 2>&1 | FileCheck %s --check-prefix=ERR2
+# RUN: not llvm-objcopy --dump-section .text= %t /dev/null 2>&1 | FileCheck %s --check-prefix=ERR2
+
+# ERR2: error: bad format for --dump-section, expected section=file
diff --git a/llvm/tools/llvm-objcopy/CopyConfig.cpp b/llvm/tools/llvm-objcopy/CopyConfig.cpp
--- a/llvm/tools/llvm-objcopy/CopyConfig.cpp
+++ b/llvm/tools/llvm-objcopy/CopyConfig.cpp
@@ -700,8 +700,14 @@
           "bad format for --add-section: missing file name");
     Config.AddSection.push_back(ArgValue);
   }
-  for (auto Arg : InputArgs.filtered(OBJCOPY_dump_section))
-    Config.DumpSection.push_back(Arg->getValue());
+  for (auto Arg : InputArgs.filtered(OBJCOPY_dump_section)) {
+    StringRef Value(Arg->getValue());
+    if (Value.split('=').second.empty())
+      return createStringError(
+          errc::invalid_argument,
+          "bad format for --dump-section, expected section=file");
+    Config.DumpSection.push_back(Value);
+  }
   Config.StripAll = InputArgs.hasArg(OBJCOPY_strip_all);
   Config.StripAllGNU = InputArgs.hasArg(OBJCOPY_strip_all_gnu);
   Config.StripDebug = InputArgs.hasArg(OBJCOPY_strip_debug);