Kevin Enderby a6534d0295 Thread Expected<...> up from createMachOObjectFile() to allow llvm-objdump to produce a real error message ... Produce the first specific error message for a malformed Mach-O file describing the problem instead of the generic message for object_error::parse_failed of "Invalid data was encountered while parsing the file”.  Many more good error messages will follow after this first one. This is built on Lang Hames’ great work of adding the ’Error' class for structured error handling and threading Error through MachOObjectFile construction. And making createMachOObjectFile return Expected<...> . So to to get the error to the llvm-obdump tool, I changed the stack of these methods to also return Expected<...> : object::ObjectFile::createObjectFile() object::SymbolicFile::createSymbolicFile() object::createBinary() Then finally in ParseInputMachO() in MachODump.cpp the error can be reported and the specific error message can be printed in llvm-objdump and can be seen in the existing test case for the existing malformed binary but with the updated error message. Converting these interfaces to Expected<> from ErrorOr<> does involve touching a number of places. To contain the changes for now use of errorToErrorCode() and errorOrToExpected() are used where the callers are yet to be converted. Also there some were bugs in the existing code that did not deal with the old ErrorOr<> return values. So now with Expected<> since they must be checked and the error handled, I added a TODO and a comment: “// TODO: Actually report errors helpfully” and a call something like consumeError(ObjOrErr.takeError()) so the buggy code will not crash since needed to deal with the Error. Note there is one fix also needed to lld/COFF/InputFiles.cpp that goes along with this that I will commit right after this. So expect lld not to built after this commit and before the next one. llvm-svn: 265606		2016-04-06 22:14:09 +00:00
..
ARMAttributeParser.cpp	Silencing warnings from MSVC 2015 Update 2. All of these changes silence "C4334 '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)". NFC.	2016-03-30 21:30:00 +00:00
ARMAttributeParser.h	[ARM] Add DSP build attribute and extension targeting	2016-01-25 11:26:11 +00:00
ARMEHABIPrinter.h	One more batch of self-containing headers.	2016-01-27 19:29:56 +00:00
ARMWinEHPrinter.cpp	Fix a crash in running llvm-objdump -t with an invalid Mach-O file already	2016-03-23 20:27:00 +00:00
ARMWinEHPrinter.h
CMakeLists.txt	llvm-readobj: Dump more info for COFF import libraries.	2015-08-28 10:27:50 +00:00
CodeView.h	Silence gcc warning about ternary and enumerations	2016-01-28 23:59:35 +00:00
COFFDumper.cpp	Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."	2016-04-05 20:45:04 +00:00
COFFImportDumper.cpp	llvm-readobj: Dump more info for COFF import libraries.	2015-08-28 10:27:50 +00:00
ELFDumper.cpp	Use ArrayRef for contiguous areas in ELF. NFC.	2016-04-05 14:47:22 +00:00
Error.cpp
Error.h
llvm-readobj.cpp	Thread Expected<...> up from createMachOObjectFile() to allow llvm-objdump to produce a real error message	2016-04-06 22:14:09 +00:00
llvm-readobj.h	Fix typo. NFC.	2016-03-01 21:45:22 +00:00
LLVMBuild.txt
MachODumper.cpp	[MachO] Add MachO alt-entry directive support.	2016-03-15 01:43:05 +00:00
ObjDumper.cpp
ObjDumper.h	[llvm-readobj] Add -elf-section-groups option	2016-01-26 19:46:39 +00:00
StackMapPrinter.h	[StackMaps] Add a lightweight parser for stackmap version 1 sections.	2015-06-26 23:56:53 +00:00
StreamWriter.cpp	[llvm-readobj] Impl GNU style printing of sections and relocations	2016-03-15 17:25:31 +00:00
StreamWriter.h	[llvm-readobj] Impl GNU style printing of sections and relocations	2016-03-15 17:25:31 +00:00
Win64EHDumper.cpp	Use makeArrayRef or None to avoid unnecessarily mentioning the ArrayRef type extra times. NFC	2015-09-21 05:32:41 +00:00
Win64EHDumper.h