[llvm-objcopy][NFC] More error propagation

Summary: Do some more error cleanup, removing some dependencies from llvm-objcopy's error/reportError in [ELF/COFF]Objcopy methods.

Reviewers: jhenderson, alexshap, jakehehrlich, mstorsjo, espindola

Subscribers: emaste, arichardson

Differential Revision: https://reviews.llvm.org/D57423

llvm-svn: 352625

1 files changed, 5 insertions, 4 deletions

diff --git a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.h b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.h
index b66bbd5d33f..a7fe37d0050 100644
--- a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.h
+++ b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.h
@@ -10,6 +10,7 @@
 #define LLVM_TOOLS_OBJCOPY_ELFOBJCOPY_H
 
 namespace llvm {
+class Error;
 class MemoryBuffer;
 
 namespace object {
@@ -21,10 +22,10 @@ struct CopyConfig;
 class Buffer;
 
 namespace elf {
-void executeObjcopyOnRawBinary(const CopyConfig &Config, MemoryBuffer &In,
-                               Buffer &Out);
-void executeObjcopyOnBinary(const CopyConfig &Config,
-                            object::ELFObjectFileBase &In, Buffer &Out);
+Error executeObjcopyOnRawBinary(const CopyConfig &Config, MemoryBuffer &In,
+                                Buffer &Out);
+Error executeObjcopyOnBinary(const CopyConfig &Config,
+                             object::ELFObjectFileBase &In, Buffer &Out);
 
 } // end namespace elf
 } // end namespace objcopy