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* Remove always true argument and field.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208559 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove always true argument.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208558 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an always true argument.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208557 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove write only field.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208555 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove now empty method.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208554 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the always true UseCFI member.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208553 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the useCFI constructor argument to MCAsmStreamer.Rafael Espindola2014-05-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208551 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the UseCFI option from createAsmStreamer.Rafael Espindola2014-05-07
| | | | | | We were already always passing true, this just removes the option. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208205 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow using normal .eh_frame based unwinding on ARM. Use the sameJoerg Sonnenberger2014-05-07
| | | | | | | encodings as x86. Use this exception model for NetBSD. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208166 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a range based for loop for the SubtargetFeatures print function.Eric Christopher2014-05-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208132 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix odd formatting that snuck into last patch.Eric Christopher2014-05-06
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208130 91177308-0d34-0410-b5e6-96231b3b80d8
* ArrayRef-ize the Feature and Processor tables for SubtargetFeatures.Eric Christopher2014-05-06
| | | | | | | | This removes arguments passed everywhere and allows the use of standard iteration over lists. Should be no functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208127 91177308-0d34-0410-b5e6-96231b3b80d8
* Have the SubtargetFeature help routine just not return a number andEric Christopher2014-05-06
| | | | | | | | fall back to the normal path without a cpu. While doing this fix llc to just exit when we don't have a module to process instead of asserting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208102 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Walk back commits for unused function parameters - they're still being"Eric Christopher2014-05-06
| | | | | | this reapplies 208012 and 208002. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208037 91177308-0d34-0410-b5e6-96231b3b80d8
* Walk back commits for unused function parameters - they're still beingEric Christopher2014-05-05
| | | | | | used via dragonegg for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208016 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a now unnecessary function since all calls have one versionEric Christopher2014-05-05
| | | | | | and inline it into its caller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208012 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove a call to std::exit in a library. Make "Help" returnEric Christopher2014-05-05
| | | | | | a 0 as a default answer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208009 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused argument from AddFeature.Eric Christopher2014-05-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208002 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix pr19645.Rafael Espindola2014-05-03
| | | | | | | | | | | | | | | | The fix itself is fairly simple: move getAccessVariant to MCValue so that we replace the old weak expression evaluation with the far more general EvaluateAsRelocatable. This then requires that EvaluateAsRelocatable stop when it finds a non trivial reference kind. And that in turn requires the ELF writer to look harder for weak references. Last but not least, this found a case where we were being bug by bug compatible with gas and accepting an invalid input. I reported pr19647 to track it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207920 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: place .file records into the correct sectionSaleem Abdulrasool2014-05-02
| | | | | | | | | .file records are supposed to have a section identifier of 65534 (IMAGE_SCN_DEBUG) rather than 0. This is spelt out clearly within the PE/COFF specification. Fix this minor oversight with the implementation for support for .file records. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207851 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix uninitialized variable introduced in r207739.David Blaikie2014-05-01
| | | | | | | | | | This was initialized by llvm-mc (calling setDwarfVersion) but other clients (such as clang, llc, etc) aren't necessarily initializing this so we were getting garbage DWARF version values in the output. Initialize it to a reasonable default (the same default used in llvm-mc, though this is higher than it was (2) previously). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207788 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't propagate StorageClass and ComplexType to aliases.Rafael Espindola2014-05-01
| | | | | | | | | This matches gas' behaviour on COFF. I think that this yak is now sufficiently shaved for aliases with offset to work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207786 91177308-0d34-0410-b5e6-96231b3b80d8
* Compute the correct section for zed = foo + 1 in COFF.Rafael Espindola2014-05-01
| | | | | | | | | This fixes pr19147. There are a few more related issues to fix, but the testcase in the bug now passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207763 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getBaseSymbol somewhere the COFF writer can use.Rafael Espindola2014-05-01
| | | | | | I will use it there in a second. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207761 91177308-0d34-0410-b5e6-96231b3b80d8
* Make getBaseSymbol non recursive.Rafael Espindola2014-05-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207759 91177308-0d34-0410-b5e6-96231b3b80d8
* Record the DWARF version in MCContextOliver Stannard2014-05-01
| | | | | | | | | Record the DWARF version in MCContext, and use it when emitting the dwarf version into the debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207739 91177308-0d34-0410-b5e6-96231b3b80d8
* Start fixing pr19147.Rafael Espindola2014-05-01
| | | | | | | This makes the coff writer compute the correct symbol value for the test in pr19147. The section is still incorrect, that will be fixed in a followup patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207728 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing breaks.Joerg Sonnenberger2014-04-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207723 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch over getArch()'s result.Joerg Sonnenberger2014-04-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207721 91177308-0d34-0410-b5e6-96231b3b80d8
* Provide a version of getSymbolOffset that returns false on error.Rafael Espindola2014-04-30
| | | | | | | This simplifies ELFObjectWriter::SymbolValue a bit more. This new version will also be used in the COFF writer to fix pr19147. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207711 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify ELFObjectWriter::SymbolValue.Rafael Espindola2014-04-30
| | | | | | It now defers all offset computation to getSymbolOffset. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207674 91177308-0d34-0410-b5e6-96231b3b80d8
* ELFObjectWriter: deduplicate suffices in strtabHans Wennborg2014-04-30
| | | | | | | | | | | | | | | We already do this for shstrtab, so might as well do it for strtab. This extracts the string table building code into a separate class. The idea is to use it for other object formats too. I mostly wanted to do this for the general principle, but it does save a little bit on object file size. I tried this on a clang bootstrap and saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for a release build). Differential Revision: http://reviews.llvm.org/D3533 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207670 91177308-0d34-0410-b5e6-96231b3b80d8
* Grammar fix.Rafael Espindola2014-04-30
| | | | | | Thanks to Saleem Abdulrasool for noticing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207643 91177308-0d34-0410-b5e6-96231b3b80d8
* [ARM64] Ensure arm64_be is dealt with when emitting debug info.James Molloy2014-04-30
| | | | | | | This is a partial port of r204816 (cpirker "Elf support for MC-JIT runtime dynamic linker") from AArch64 to ARM64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207625 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify getSymbolOffset.Rafael Espindola2014-04-30
| | | | | | | We can now use EvaluateAsValue to make it non recursive and remove some code duplication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207604 91177308-0d34-0410-b5e6-96231b3b80d8
* Another missing include for MSVC.Benjamin Kramer2014-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207596 91177308-0d34-0410-b5e6-96231b3b80d8
* raw_ostream: Forward declare OpenFlags and include FileSystem.h only where ↵Benjamin Kramer2014-04-29
| | | | | | necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207593 91177308-0d34-0410-b5e6-96231b3b80d8
* Parse and create GOT_PREL relocations.Joerg Sonnenberger2014-04-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207526 91177308-0d34-0410-b5e6-96231b3b80d8
* Centralize the handling of the thumb bit.Rafael Espindola2014-04-29
| | | | | | | | | | | | | This patch centralizes the handling of the thumb bit around MCStreamer::isThumbFunc and makes isThumbFunc handle aliases. This fixes a corner case, but the main advantage is having just one way to check if a MCSymbol is thumb or not. This should still be refactored to be ARM only, but at least now it is just one predicate that has to be refactored instead of 3 (isThumbFunc, ELF_Other_ThumbFunc, and SF_ThumbFunc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207522 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an option for evaluating past symbols.Rafael Espindola2014-04-28
| | | | | | | | | | | | | When evaluating an assembly expression for a relocation, we want to stop at MCSymbols that are in the symbol table, even if they are variables. This is needed since the semantics may require that the relocation use them. That is not the case when computing the value of a symbol in the symbol table. There are no relocations in this case and we have to keep going until we hit a section or find out that the expression doesn't have an assembly time value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207445 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify ELFObjectWriter::ExecutePostLayoutBinding.Rafael Espindola2014-04-28
| | | | | | | No functionality change. This removes the last use of AliasedSymbol in ELFObjectWriter.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207424 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify isLocal().Rafael Espindola2014-04-28
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207421 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't include an invalid symbol in the symbol table.Rafael Espindola2014-04-28
| | | | | | | | | | | | The symbol table itself has no relocations, so it is not possible to represent things like a = undefined + 1 With the patch we just omit these variables. That matches the behaviour of the gnu assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207419 91177308-0d34-0410-b5e6-96231b3b80d8
* Produce an error instead of a crash in an expr we cannot represent.Rafael Espindola2014-04-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207414 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: range-loopifySaleem Abdulrasool2014-04-28
| | | | | | Use C++11 range-based loops rather than explicit constructors. NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207393 91177308-0d34-0410-b5e6-96231b3b80d8
* Make getOrCreateSymbolData non virtual.Rafael Espindola2014-04-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207367 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid using MCSymbolData on the asm streamer.Rafael Espindola2014-04-27
| | | | | | | | Only the object streamers need to track if a symbol should be marked thumb or not. This ports the ELF case. The COFF case is not ported since it is currently not working for some other reason (I will report a bug). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207366 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: restore behaviour of defaulting to ELFSaleem Abdulrasool2014-04-27
| | | | | | | This restores the previous behaviour of just assuming that if you dont specify a valid triple that you really meant the default triple with an ELF object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207349 91177308-0d34-0410-b5e6-96231b3b80d8
* Add WoA object file emission supportSaleem Abdulrasool2014-04-27
| | | | | | | | | | | | | | | | | | | | | | Introduce support for WoA PE/COFF object file emission from LLVM. Add the new target specific PE/COFF Streamer (ARMWinCOFFStreamer) that handles the ARM specific behaviour of PE/COFF object emission. ARM exception information is not yet emitted and is a TODO item. The ARM specific object writer (ARMWinCOFFObjectWriter) handles the ARM specific relocation handling in conjunction with the WinCOFFObjectWriter in the MC layer. The MC layer needs to be updated to deal with the relocation adjustments. Branch relocations are adjusted by 4 bytes (unlikely their ELF counterparts). Minor tweaks to switch multiple conditional checks into equivalent switch statements. The ObjectFileInfo is updated to relax the object file setup for Windows COFF. Move the architecture checks into an assertion. Windows COFF is currently only supported on x86, x86_64, and ARM (thumb). Rather than defaulting to ELF, we will refuse to generate an object file. This is better though as you do not get an (arbitrary) object file which is different from the request. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207345 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: create X86WinCOFFStreamer for target specific behaviourSaleem Abdulrasool2014-04-27
| | | | | | | | | | This introduces a target specific streamer, X86WinCOFFStreamer, which handles the target specific behaviour (e.g. WinEH). This is mostly to ensure that differences between ARM and X86 remain disjoint and do not accidentally cross boundaries. This is the final staging change for enabling object emission for Windows on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207344 91177308-0d34-0410-b5e6-96231b3b80d8
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