diff --git a/llvm/docs/CommandGuide/llvm-objcopy.rst b/llvm/docs/CommandGuide/llvm-objcopy.rst
--- a/llvm/docs/CommandGuide/llvm-objcopy.rst
+++ b/llvm/docs/CommandGuide/llvm-objcopy.rst
@@ -59,7 +59,7 @@
 
  Remove most local symbols from the output. Different file formats may limit
  this to a subset of the local symbols. For example, file and section symbols in
- ELF objects will not be discarded.
+ ELF objects will not be discarded. Additionally, remove all debug sections.
 
 .. option:: --dump-section <section>=<file>
 
diff --git a/llvm/docs/CommandGuide/llvm-strip.rst b/llvm/docs/CommandGuide/llvm-strip.rst
--- a/llvm/docs/CommandGuide/llvm-strip.rst
+++ b/llvm/docs/CommandGuide/llvm-strip.rst
@@ -39,7 +39,7 @@
 
  Remove most local symbols from the output. Different file formats may limit
  this to a subset of the local symbols. For example, file and section symbols in
- ELF objects will not be discarded.
+ ELF objects will not be discarded. Additionally, remove all debug sections.
 
 .. option::  --enable-deterministic-archives, -D
 
diff --git a/llvm/tools/llvm-objcopy/CommonOpts.td b/llvm/tools/llvm-objcopy/CommonOpts.td
--- a/llvm/tools/llvm-objcopy/CommonOpts.td
+++ b/llvm/tools/llvm-objcopy/CommonOpts.td
@@ -99,7 +99,8 @@
 
 def discard_all
     : Flag<["--"], "discard-all">,
-      HelpText<"Remove all local symbols except file and section symbols">;
+      HelpText<"Remove all local symbols except file and section symbols. Also "
+               "remove all debug sections">;
 def x : Flag<["-"], "x">,
         Alias<discard_all>,
         HelpText<"Alias for --discard-all">;