[llvm] r361450 - [llvm-objcopy] Add file names to error messages

Seiya Nuta via llvm-commits llvm-commits at lists.llvm.org
Wed May 22 17:42:46 PDT 2019


Author: seiya
Date: Wed May 22 17:42:46 2019
New Revision: 361450

URL: http://llvm.org/viewvc/llvm-project?rev=361450&view=rev
Log:
[llvm-objcopy] Add file names to error messages

Summary:
This patch adds the file names to llvm-objcopy error messages. It makes easy to identify which file causes an error.

Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=41798

Reviewers: espindola, alexshap, rupprecht, jhenderson, jakehehrlich

Reviewed By: rupprecht, jhenderson, jakehehrlich

Subscribers: emaste, arichardson, jakehehrlich, MaskRay, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61993

Modified:
    llvm/trunk/test/tools/llvm-objcopy/ELF/dump-section.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym-error-remove-strtab.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/no-build-id.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/reloc-error-remove-symtab.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/remove-linked-section.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/remove-shstrtab-error.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/strip-section-err.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/strip-symbol-and-relocation.test
    llvm/trunk/test/tools/llvm-objcopy/ELF/symtab-error-on-remove-strtab.test
    llvm/trunk/tools/llvm-objcopy/ELF/ELFObjcopy.cpp

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/dump-section.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/dump-section.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/dump-section.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/dump-section.test Wed May 22 17:42:46 2019
@@ -3,7 +3,7 @@
 # RUN: llvm-objcopy -O binary --only-section .text %t %t3
 # RUN: llvm-objcopy --dump-section .text=%t4 %t %t5
 # RUN: llvm-objcopy --dump-section .foo=%t6 %t %t7
-# RUN: not llvm-objcopy --dump-section .bar=%t8 %t %t9 2>&1 | FileCheck %s --check-prefix=NOBITS
+# RUN: not llvm-objcopy --dump-section .bar=%t8 %t %t9 2>&1 | FileCheck %s --check-prefix=NOBITS -DINPUT=%t
 # RUN: od -t x1 %t2 | FileCheck %s
 # RUN: od -t x1 %t6 | FileCheck %s --check-prefix=NON-ALLOC
 # RUN: wc -c %t2 | FileCheck %s --check-prefix=SIZE
@@ -41,4 +41,4 @@ ProgramHeaders:
 
 #SIZE: 4
 
-#NOBITS: cannot dump section '.bar': it has no contents
+#NOBITS: error: '[[INPUT]]': cannot dump section '.bar': it has no contents

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/dynrelocsec-remove-shlink-reference.test Wed May 22 17:42:46 2019
@@ -2,8 +2,8 @@
 
 ## 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'
+# RUN: not llvm-objcopy -R .dynsym %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR -DINPUT=%t
+# ERR: error: '[[INPUT]]': 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

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym-error-remove-strtab.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym-error-remove-strtab.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym-error-remove-strtab.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/dynsym-error-remove-strtab.test Wed May 22 17:42:46 2019
@@ -1,8 +1,9 @@
-# RUN: not llvm-objcopy -R .dynstr %p/Inputs/dynsym.so %t 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-objcopy -R .dynstr %p/Inputs/dynsym.so %t 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR1 -DINPUT=%p/Inputs/dynsym.so
 # RUN: cp  %p/Inputs/dynsym.so %t2
-# RUN: not llvm-strip --no-strip-all -R .dynstr %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-strip --no-strip-all -R .dynstr %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR2 -DINPUT=%t2
 
-# ERR: section '.dynstr' cannot be removed because it is referenced by the section '.dynsym'
+# ERR1: error: '[[INPUT]]': section '.dynstr' cannot be removed because it is referenced by the section '.dynsym'
+# ERR2: error: '[[INPUT]]': section '.dynstr' cannot be removed because it is referenced by the section '.dynsym'
 
 # RUN: llvm-objcopy --allow-broken-links -R .dynstr %p/Inputs/dynsym.so %t3
 # RUN: llvm-objdump --section-headers %t3 | FileCheck %s --check-prefix=SECTIONS --implicit-check-not=.dynstr

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/no-build-id.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/no-build-id.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/no-build-id.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/no-build-id.test Wed May 22 17:42:46 2019
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s > %t
-# RUN: not llvm-objcopy --build-id-link-dir=%t-dir --build-id-link-input=.debug %t 2>&1 >/dev/null | FileCheck %s
+# RUN: not llvm-objcopy --build-id-link-dir=%t-dir --build-id-link-input=.debug %t 2>&1 >/dev/null | FileCheck %s -DINPUT=%t
 
-# CHECK: could not find build ID
+# CHECK: error: '[[INPUT]]': could not find build ID
 
 --- !ELF
 FileHeader:

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/reloc-error-remove-symtab.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/reloc-error-remove-symtab.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/reloc-error-remove-symtab.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/reloc-error-remove-symtab.test Wed May 22 17:42:46 2019
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s > %t
-# RUN: not llvm-objcopy -R .symtab %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-objcopy -R .symtab %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR1 -DINPUT=%t
 # RUN: cp %t %t3
-# RUN: not llvm-strip --no-strip-all -R .symtab %t3 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-strip --no-strip-all -R .symtab %t3 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR2 -DINPUT=%t3
 
 !ELF
 FileHeader:
@@ -31,7 +31,8 @@ Symbols:
     Size:     4
     Binding:  STB_GLOBAL
 
-# ERR: symbol table '.symtab' cannot be removed because it is referenced by the relocation section '.rel.text'
+# ERR1: error: '[[INPUT]]': symbol table '.symtab' cannot be removed because it is referenced by the relocation section '.rel.text'
+# ERR2: error: '[[INPUT]]': symbol table '.symtab' cannot be removed because it is referenced by the relocation section '.rel.text'
 
 # RUN: llvm-objcopy --allow-broken-links -R .symtab %t %t4
 # RUN: llvm-readobj --sections %t4 | FileCheck %s --check-prefix=SECTIONS --implicit-check-not=.symtab

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/remove-linked-section.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/remove-linked-section.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/remove-linked-section.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/remove-linked-section.test Wed May 22 17:42:46 2019
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s -o %t.o
-# RUN: not llvm-objcopy -R .foo %t.o %t1 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-objcopy -R .foo %t.o %t1 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR1 -DINPUT=%t.o
 # RUN: cp %t.o %t2
-# RUN: not llvm-strip --no-strip-all -R .foo %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-strip --no-strip-all -R .foo %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR2 -DINPUT=%t2
 
 --- !ELF
 FileHeader:
@@ -16,7 +16,8 @@ Sections:
     Type:            SHT_PROGBITS
     Link:            .foo
 
-# ERR: section '.foo' cannot be removed because it is referenced by the section '.bar'
+# ERR1: error: '[[INPUT]]': section '.foo' cannot be removed because it is referenced by the section '.bar'
+# ERR2: error: '[[INPUT]]': section '.foo' cannot be removed because it is referenced by the section '.bar'
 
 # RUN: llvm-objcopy --allow-broken-links -R .foo %t.o %t3
 # RUN: llvm-readobj --sections %t3 | FileCheck %s --check-prefix=SECTIONS --implicit-check-not=.foo

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/remove-shstrtab-error.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/remove-shstrtab-error.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/remove-shstrtab-error.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/remove-shstrtab-error.test Wed May 22 17:42:46 2019
@@ -1,5 +1,5 @@
 # RUN: yaml2obj %s > %t
-# RUN: not llvm-objcopy -R .shstrtab %t %t2 2>&1 >/dev/null | FileCheck %s
+# RUN: not llvm-objcopy -R .shstrtab %t %t2 2>&1 >/dev/null | FileCheck %s -DINPUT=%t
 
 !ELF
 FileHeader:
@@ -8,4 +8,4 @@ FileHeader:
   Type:            ET_REL
   Machine:         EM_X86_64
 
-# CHECK: cannot write section header table because section header string table was removed
+# CHECK: error: '[[INPUT]]': cannot write section header table because section header string table was removed

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/strip-section-err.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/strip-section-err.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/strip-section-err.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/strip-section-err.test Wed May 22 17:42:46 2019
@@ -2,8 +2,8 @@
 ## referenced by relocations contained in the object.
 
 # RUN: yaml2obj %s > %t1
-# RUN: not llvm-objcopy -R .data %t1 2>&1 | FileCheck %s
-# CHECK: error: section '.data' cannot be removed: (.text+0x1) has relocation against symbol 'foo'
+# RUN: not llvm-objcopy -R .data %t1 2>&1 | FileCheck %s -DINPUT=%t1
+# CHECK: error: '[[INPUT]]': section '.data' cannot be removed: (.text+0x1) has relocation against symbol 'foo'
 
 ## Check the behavior when we also remove the relocation section.
 ## We have no reference in this case and hence no error should be emitted.

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/strip-symbol-and-relocation.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/strip-symbol-and-relocation.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/strip-symbol-and-relocation.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/strip-symbol-and-relocation.test Wed May 22 17:42:46 2019
@@ -20,8 +20,8 @@
 # STRIPSYM-NOT: bar
 # STRIPSYM-NOT: .rela.text
 
-# RUN: not llvm-objcopy --strip-symbol=bar %t %t2 2>&1 | FileCheck %s --check-prefix=ERR
-# ERR: not stripping symbol 'bar' because it is named in a relocation
+# RUN: not llvm-objcopy --strip-symbol=bar %t %t2 2>&1 | FileCheck %s --check-prefix=ERR -DINPUT=%t
+# ERR: error: '[[INPUT]]': not stripping symbol 'bar' because it is named in a relocation
 
 --- !ELF
 FileHeader:

Modified: llvm/trunk/test/tools/llvm-objcopy/ELF/symtab-error-on-remove-strtab.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-objcopy/ELF/symtab-error-on-remove-strtab.test?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-objcopy/ELF/symtab-error-on-remove-strtab.test (original)
+++ llvm/trunk/test/tools/llvm-objcopy/ELF/symtab-error-on-remove-strtab.test Wed May 22 17:42:46 2019
@@ -1,7 +1,7 @@
 # RUN: yaml2obj %s > %t
-# RUN: not llvm-objcopy -R .strtab %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-objcopy -R .strtab %t %t2 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR1 -DINPUT=%t
 # RUN: cp %t %t3
-# RUN: not llvm-strip --no-strip-all -R .strtab %t3 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR
+# RUN: not llvm-strip --no-strip-all -R .strtab %t3 2>&1 >/dev/null | FileCheck %s --check-prefix=ERR2 -DINPUT=%t3
 
 !ELF
 FileHeader:
@@ -10,7 +10,8 @@ FileHeader:
   Type:            ET_REL
   Machine:         EM_X86_64
 
-# ERR: string table '.strtab' cannot be removed because it is referenced by the symbol table '.symtab'
+# ERR1: error: '[[INPUT]]': string table '.strtab' cannot be removed because it is referenced by the symbol table '.symtab'
+# ERR2: error: '[[INPUT]]': string table '.strtab' cannot be removed because it is referenced by the symbol table '.symtab'
 
 # RUN: llvm-objcopy --allow-broken-links -R .strtab %t %t4
 # RUN: llvm-objdump --section-headers %t4 | FileCheck %s --check-prefix=SECTIONS --implicit-check-not=.strtab

Modified: llvm/trunk/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-objcopy/ELF/ELFObjcopy.cpp?rev=361450&r1=361449&r2=361450&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-objcopy/ELF/ELFObjcopy.cpp (original)
+++ llvm/trunk/tools/llvm-objcopy/ELF/ELFObjcopy.cpp Wed May 22 17:42:46 2019
@@ -156,8 +156,12 @@ static std::unique_ptr<Writer> createWri
 
 template <class ELFT>
 static Expected<ArrayRef<uint8_t>>
-findBuildID(const object::ELFFile<ELFT> &In) {
-  for (const auto &Phdr : unwrapOrError(In.program_headers())) {
+findBuildID(const CopyConfig &Config, const object::ELFFile<ELFT> &In) {
+  auto PhdrsOrErr = In.program_headers();
+  if (auto Err = PhdrsOrErr.takeError())
+    return createFileError(Config.InputFilename, std::move(Err));
+
+  for (const auto &Phdr : *PhdrsOrErr) {
     if (Phdr.p_type != PT_NOTE)
       continue;
     Error Err = Error::success();
@@ -165,22 +169,25 @@ findBuildID(const object::ELFFile<ELFT>
       if (Note.getType() == NT_GNU_BUILD_ID && Note.getName() == ELF_NOTE_GNU)
         return Note.getDesc();
     if (Err)
-      return std::move(Err);
+      return createFileError(Config.InputFilename, std::move(Err));
   }
-  return createStringError(llvm::errc::invalid_argument,
-                           "could not find build ID");
+
+  return createFileError(
+      Config.InputFilename,
+      createStringError(llvm::errc::invalid_argument,
+                        "could not find build ID"));
 }
 
 static Expected<ArrayRef<uint8_t>>
-findBuildID(const object::ELFObjectFileBase &In) {
+findBuildID(const CopyConfig &Config, const object::ELFObjectFileBase &In) {
   if (auto *O = dyn_cast<ELFObjectFile<ELF32LE>>(&In))
-    return findBuildID(*O->getELFFile());
+    return findBuildID(Config, *O->getELFFile());
   else if (auto *O = dyn_cast<ELFObjectFile<ELF64LE>>(&In))
-    return findBuildID(*O->getELFFile());
+    return findBuildID(Config, *O->getELFFile());
   else if (auto *O = dyn_cast<ELFObjectFile<ELF32BE>>(&In))
-    return findBuildID(*O->getELFFile());
+    return findBuildID(Config, *O->getELFFile());
   else if (auto *O = dyn_cast<ELFObjectFile<ELF64BE>>(&In))
-    return findBuildID(*O->getELFFile());
+    return findBuildID(Config, *O->getELFFile());
 
   llvm_unreachable("Bad file format");
 }
@@ -681,7 +688,7 @@ static Error handleArgs(const CopyConfig
     StringRef SecName = SecPair.first;
     StringRef File = SecPair.second;
     if (Error E = dumpSectionToFile(SecName, File, Obj))
-      return createFileError(Config.InputFilename, std::move(E));
+      return E;
   }
 
   if (!Config.AddGnuDebugLink.empty())
@@ -730,7 +737,11 @@ Error executeObjcopyOnBinary(const CopyC
   ArrayRef<uint8_t> BuildIdBytes;
 
   if (!Config.BuildIdLinkDir.empty()) {
-    BuildIdBytes = unwrapOrError(findBuildID(In));
+    auto BuildIdBytesOrErr = findBuildID(Config, In);
+    if (auto E = BuildIdBytesOrErr.takeError())
+      return E;
+    BuildIdBytes = *BuildIdBytesOrErr;
+
     if (BuildIdBytes.size() < 2)
       return createFileError(
           Config.InputFilename,
@@ -745,18 +756,19 @@ Error executeObjcopyOnBinary(const CopyC
       return E;
 
   if (Error E = handleArgs(Config, *Obj, Reader, OutputElfType))
-    return E;
+    return createFileError(Config.InputFilename, std::move(E));
+
   std::unique_ptr<Writer> Writer =
       createWriter(Config, *Obj, Out, OutputElfType);
   if (Error E = Writer->finalize())
-    return E;
+    return createFileError(Config.InputFilename, std::move(E));
   if (Error E = Writer->write())
     return E;
   if (!Config.BuildIdLinkDir.empty() && Config.BuildIdLinkOutput)
     if (Error E =
             linkToBuildIdDir(Config, Config.OutputFilename,
                              Config.BuildIdLinkOutput.getValue(), BuildIdBytes))
-      return E;
+      return createFileError(Config.OutputFilename, std::move(E));
 
   return Error::success();
 }




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