Index: llvm/test/tools/llvm-readobj/basic.test
===================================================================
--- llvm/test/tools/llvm-readobj/basic.test
+++ llvm/test/tools/llvm-readobj/basic.test
@@ -1,11 +1,11 @@
 # Test case where input file does not exit.
 RUN: not llvm-readobj %t.blah 2>&1 | FileCheck --check-prefix=ENOENT %s
-ENOENT: {{.*}}.blah: {{[Nn]}}o such file or directory
+ENOENT: '{{.*}}.blah': {{[Nn]}}o such file or directory
 
 # Test case where input file is too small to be a recognised object file.
 RUN: touch %t.empty
 RUN: not llvm-readobj %t.empty 2>&1 | FileCheck --check-prefix=EMPTY %s
-EMPTY: {{.*}}.empty: The file was not recognized as a valid object file
+EMPTY: '{{.*}}.empty': The file was not recognized as a valid object file
 
 # Test that unrecognised files in archives are ignored.
 RUN: rm -f %t.a
Index: llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
===================================================================
--- llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
+++ llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
@@ -1,6 +1,6 @@
 ; RUN: not llvm-readobj -codeview-merged-types %S/Inputs/codeview-cycle.obj 2>&1 | FileCheck %s
 
-; CHECK: Error{{.*}} Input type graph contains cycles
+; CHECK: error{{.*}} Input type graph contains cycles
 
 ; To reproduce codeview-cycle.obj:
 ; $ cat codeview-cycle.asm
Index: llvm/test/tools/llvm-readobj/elf-dynamic-malformed.test
===================================================================
--- llvm/test/tools/llvm-readobj/elf-dynamic-malformed.test
+++ llvm/test/tools/llvm-readobj/elf-dynamic-malformed.test
@@ -3,7 +3,7 @@
 # RUN: not llvm-readobj --dynamic-table %t.bad-size 2>&1 | FileCheck %s --check-prefix ERR-SIZE
 # RUN: not llvm-readelf --dynamic-table %t.bad-size 2>&1 | FileCheck %s --check-prefix ERR-SIZE
 
-# ERR-SIZE: Error reading file: Invalid entity size.
+# ERR-SIZE: error: Invalid entity size
 
 --- !ELF
 FileHeader:
@@ -69,7 +69,7 @@
 # RUN: not llvm-readobj --dynamic-table %t.bad-string 2>&1 | FileCheck %s --check-prefix BAD-STRING
 # RUN: not llvm-readelf --dynamic-table %t.bad-string 2>&1 | FileCheck %s --check-prefix BAD-STRING
 
-# BAD-STRING: Error reading file: Invalid dynamic string table reference.
+# BAD-STRING: Invalid dynamic string table reference
 
 --- !ELF
 FileHeader:
Index: llvm/test/tools/llvm-readobj/elf-malformed-pt-dynamic.test
===================================================================
--- llvm/test/tools/llvm-readobj/elf-malformed-pt-dynamic.test
+++ llvm/test/tools/llvm-readobj/elf-malformed-pt-dynamic.test
@@ -21,7 +21,7 @@
 # RUN: %python -c "with open(r'%t.truncated2', 'r+') as f: f.truncate(0xFFF)"
 # RUN: not llvm-readobj %t.truncated2 --dynamic-table 2>&1 | FileCheck %s
 
-# CHECK: Error reading file: Invalid data was encountered while parsing the file.
+# CHECK: error: Invalid data was encountered while parsing the file
 
 --- !ELF
 FileHeader:
Index: llvm/test/tools/llvm-readobj/elf-packed-relocs-error1.s
===================================================================
--- llvm/test/tools/llvm-readobj/elf-packed-relocs-error1.s
+++ llvm/test/tools/llvm-readobj/elf-packed-relocs-error1.s
@@ -1,7 +1,7 @@
 // REQUIRES: x86-registered-target
 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | not llvm-readobj -relocations - 2>&1 | FileCheck %s
 
-// CHECK: Error reading file: invalid packed relocation header
+// CHECK: error: invalid packed relocation header
 
 .section .rela.dyn, "a", @0x60000001
 .ascii "APS9"
Index: llvm/test/tools/llvm-readobj/elf-packed-relocs-error2.s
===================================================================
--- llvm/test/tools/llvm-readobj/elf-packed-relocs-error2.s
+++ llvm/test/tools/llvm-readobj/elf-packed-relocs-error2.s
@@ -1,7 +1,7 @@
 // REQUIRES: x86-registered-target
 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | not llvm-readobj -relocations - 2>&1 | FileCheck %s
 
-// CHECK: Error reading file: malformed sleb128, extends past end
+// CHECK: error: malformed sleb128, extends past end
 
 .section .rela.dyn, "a", @0x60000001
 .ascii "APS2"
Index: llvm/test/tools/llvm-readobj/elf-packed-relocs-error3.s
===================================================================
--- llvm/test/tools/llvm-readobj/elf-packed-relocs-error3.s
+++ llvm/test/tools/llvm-readobj/elf-packed-relocs-error3.s
@@ -1,7 +1,7 @@
 // REQUIRES: x86-registered-target
 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | not llvm-readobj -relocations - 2>&1 | FileCheck %s
 
-// CHECK: Error reading file: malformed sleb128, extends past end
+// CHECK: error: malformed sleb128, extends past end
 
 .section .rela.dyn, "a", @0x60000001
 .ascii "APS2"
Index: llvm/test/tools/llvm-readobj/elf-packed-relocs-error4.s
===================================================================
--- llvm/test/tools/llvm-readobj/elf-packed-relocs-error4.s
+++ llvm/test/tools/llvm-readobj/elf-packed-relocs-error4.s
@@ -1,7 +1,7 @@
 // REQUIRES: x86-registered-target
 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | not llvm-readobj -relocations - 2>&1 | FileCheck %s
 
-// CHECK: Error reading file: malformed sleb128, extends past end
+// CHECK: error: malformed sleb128, extends past end
 
 .section .rela.dyn, "a", @0x60000001
 .ascii "APS2"
Index: llvm/test/tools/llvm-readobj/elf-packed-relocs-error5.s
===================================================================
--- llvm/test/tools/llvm-readobj/elf-packed-relocs-error5.s
+++ llvm/test/tools/llvm-readobj/elf-packed-relocs-error5.s
@@ -1,7 +1,7 @@
 // REQUIRES: x86-registered-target
 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | not llvm-readobj -relocations - 2>&1 | FileCheck %s
 
-// CHECK: Error reading file: relocation group unexpectedly large
+// CHECK: error: relocation group unexpectedly large
 
 .section .rela.dyn, "a", @0x60000001
 .ascii "APS2"
Index: llvm/test/tools/llvm-readobj/mips-got.test
===================================================================
--- llvm/test/tools/llvm-readobj/mips-got.test
+++ llvm/test/tools/llvm-readobj/mips-got.test
@@ -30,7 +30,7 @@
 RUN:                  --elf-output-style=GNU | \
 RUN:   FileCheck %s -check-prefix GNU-GOT-STATIC
 
-GOT-OBJ: Error reading file: Cannot find .got section.
+GOT-OBJ: error: Cannot find .got section
 
 GOT-EXE:      Primary GOT {
 GOT-EXE-NEXT:   Canonical gp value: 0x418880
@@ -386,7 +386,7 @@
 GOT-STATIC-NEXT:   ]
 GOT-STATIC-NEXT: }
 
-GNU-GOT-OBJ: Error reading file: Cannot find .got section.
+GNU-GOT-OBJ: error: Cannot find .got section
 
 GNU-GOT-EXE:      Primary GOT:
 GNU-GOT-EXE-NEXT:  Canonical gp value: 00418880
Index: llvm/test/tools/llvm-readobj/string-dump.test
===================================================================
--- llvm/test/tools/llvm-readobj/string-dump.test
+++ llvm/test/tools/llvm-readobj/string-dump.test
@@ -19,13 +19,14 @@
 # CHECK-NEXT: [ 3] null{{$}}
 # CHECK-NOT:  {{.}}
 
-# RUN: not llvm-readobj --string-dump=does_not_exist %t 2>&1 | FileCheck %s --check-prefix=ERR
-# RUN: not llvm-readobj --string-dump=42 %t 2>&1 | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-readobj --string-dump=does_not_exist %t 2>&1 | FileCheck %s --check-prefix=ERR1
+# RUN: not llvm-readobj --string-dump=42 %t 2>&1 | FileCheck %s --check-prefix=ERR2
 
-# RUN: not llvm-readelf --string-dump=does_not_exist %t 2>&1 | FileCheck %s --check-prefix=ERR
-# RUN: not llvm-readelf --string-dump=42 %t 2>&1 | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-readelf --string-dump=does_not_exist %t 2>&1 | FileCheck %s --check-prefix=ERR1
+# RUN: not llvm-readelf --string-dump=42 %t 2>&1 | FileCheck %s --check-prefix=ERR2
 
-# ERR: Error reading file: invalid section reference.
+# ERR1: error: could not find section 'does_not_exist'
+# ERR2: error: could not find section '42'
 
 --- !ELF
 FileHeader:
Index: llvm/test/tools/llvm-readobj/thin-archive-paths.test
===================================================================
--- llvm/test/tools/llvm-readobj/thin-archive-paths.test
+++ llvm/test/tools/llvm-readobj/thin-archive-paths.test
@@ -16,7 +16,7 @@
 # RUN: rm a/b/1.o
 # RUN: not llvm-readobj --file-headers a/relative.a 2>&1 | FileCheck %s --check-prefix=ERR1
 # RUN: not llvm-readelf --file-headers a/relative.a 2>&1 | FileCheck %s --check-prefix=ERR1
-# ERR1: Error reading file: a/relative.a: 'b/1.o': {{[Nn]}}o such file or directory
+# ERR1: error: 'a/relative.a': 'b/1.o': {{[Nn]}}o such file or directory
 
 # RUN: mkdir -p %t/c
 # RUN: cp %p/Inputs/trivial.obj.elf-x86-64 a/b/1.o
@@ -30,4 +30,4 @@
 # RUN: rm a/b/1.o
 # RUN: not llvm-readobj --file-headers %t/c/absolute.a 2>&1 | FileCheck %s --check-prefix=ERR2 -DDIR=%t
 # RUN: not llvm-readelf --file-headers %t/c/absolute.a 2>&1 | FileCheck %s --check-prefix=ERR2 -DDIR=%t
-# ERR2: Error reading file: [[DIR]]/c/absolute.a: '[[DIR]]/a/b/1.o': {{[Nn]}}o such file or directory
+# ERR2: error: '[[DIR]]/c/absolute.a': '[[DIR]]/a/b/1.o': {{[Nn]}}o such file or directory
Index: llvm/test/tools/llvm-readobj/thin-archive.test
===================================================================
--- llvm/test/tools/llvm-readobj/thin-archive.test
+++ llvm/test/tools/llvm-readobj/thin-archive.test
@@ -67,4 +67,4 @@
 # MISSING:     File: {{.*}}1.o
 # MISSING:     SectionHeaderCount: 10
 # MISSING-NOT: File: {{.*}}3.o
-# ERR: Error reading file: {{.*}}.a: '{{.*}}2.o': {{[Nn]}}o such file or directory
+# ERR: error: '{{.*}}.a': '{{.*}}2.o': {{[Nn]}}o such file or directory
Index: llvm/test/tools/llvm-readobj/wasm-invalid.test
===================================================================
--- llvm/test/tools/llvm-readobj/wasm-invalid.test
+++ llvm/test/tools/llvm-readobj/wasm-invalid.test
@@ -4,4 +4,4 @@
 FileHeader:
   Version:         0x0000000c
 
-# CHECK: Error reading file: <stdin>: Bad version number
+# CHECK: error: '<stdin>': Bad version number
Index: llvm/tools/llvm-readobj/ObjDumper.cpp
===================================================================
--- llvm/tools/llvm-readobj/ObjDumper.cpp
+++ llvm/tools/llvm-readobj/ObjDumper.cpp
@@ -16,6 +16,7 @@
 #include "llvm-readobj.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Support/Error.h"
+#include "llvm/Support/FormatVariadic.h"
 #include "llvm/Support/ScopedPrinter.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -54,8 +55,9 @@
 
     SecIndex++;
   }
-  return make_error<StringError>("invalid section reference",
-                                 object::object_error::parse_failed);
+  return make_error<StringError>(
+      formatv("could not find section '{0}'", SecName),
+      object::object_error::parse_failed);
 }
 
 void ObjDumper::printSectionAsString(const object::ObjectFile *Obj,
Index: llvm/tools/llvm-readobj/llvm-readobj.cpp
===================================================================
--- llvm/tools/llvm-readobj/llvm-readobj.cpp
+++ llvm/tools/llvm-readobj/llvm-readobj.cpp
@@ -39,6 +39,7 @@
 #include "llvm/Support/Path.h"
 #include "llvm/Support/ScopedPrinter.h"
 #include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/WithColor.h"
 
 using namespace llvm;
 using namespace llvm::object;
@@ -367,8 +368,8 @@
 namespace llvm {
 
 LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg) {
-  errs() << "\nError reading file: " << Msg << ".\n";
-  errs().flush();
+  errs() << "\n";
+  WithColor::error(errs()) << Msg << "\n";
   exit(1);
 }
 
@@ -376,7 +377,9 @@
   if (!EC)
     return;
   handleAllErrors(std::move(EC),
-                  [&](const ErrorInfoBase &EI) { reportError(EI.message()); });
+                  [](const ErrorInfoBase &EI) {
+                    reportError(EI.message());
+                  });
 }
 
 void error(std::error_code EC) {
@@ -391,22 +394,14 @@
 
 } // namespace llvm
 
-static void reportError(StringRef Input, std::error_code EC) {
+static void reportError(StringRef Input, Error Err) {
   if (Input == "-")
     Input = "<stdin>";
-
-  reportError(Twine(Input) + ": " + EC.message());
+  error(createFileError(Input, std::move(Err)));
 }
 
-static void reportError(StringRef Input, Error Err) {
-  if (Input == "-")
-    Input = "<stdin>";
-  std::string ErrMsg;
-  {
-    raw_string_ostream ErrStream(ErrMsg);
-    logAllUnhandledErrors(std::move(Err), ErrStream, Input + ": ");
-  }
-  reportError(ErrMsg);
+static void reportError(StringRef Input, std::error_code EC) {
+  reportError(Input, errorCodeToError(EC));
 }
 
 static bool isMipsArch(unsigned Arch) {