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* [MCJIT] Remove the local symbol table from RuntimeDlyd - it's not needed.Lang Hames2014-11-274-8/+8
| | | | | | | | All symbols have to be stored in the global symbol to enable cross-rtdyld-instance linking, so the local symbol table content is redundant. llvm-svn: 222867
* [MCJIT] Reapply r222828 and r222810-r222812 with fix for MSVC move-op issues.Lang Hames2014-11-264-77/+79
| | | | llvm-svn: 222840
* Reverting r222828 and r222810-r222812 as they broke the build on Windows.Aaron Ballman2014-11-264-79/+77
| | | | | | http://bb.pgr.jp/builders/ninja-clang-i686-msc17-R/builds/11753 llvm-svn: 222833
* [MCJIT] Clean up RuntimeDyld's quirky object-ownership/modification scheme.Lang Hames2014-11-264-77/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, when loading an object file, RuntimeDyld (1) took ownership of the ObjectFile instance (and associated MemoryBuffer), (2) potentially modified the object in-place, and (3) returned an ObjectImage that managed ownership of the now-modified object and provided some convenience methods. This scheme accreted over several years as features were tacked on to RuntimeDyld, and was both unintuitive and unsafe (See e.g. http://llvm.org/PR20722). This patch fixes the issue by removing all ownership and in-place modification of object files from RuntimeDyld. Existing behavior, including debugger registration, is preserved. Noteworthy changes include: (1) ObjectFile instances are now passed to RuntimeDyld by const-ref. (2) The ObjectImage and ObjectBuffer classes have been removed entirely, they existed to model ownership within RuntimeDyld, and so are no longer needed. (3) RuntimeDyld::loadObject now returns an instance of a new class, RuntimeDyld::LoadedObjectInfo, which can be used to construct a modified object suitable for registration with the debugger, following the existing debugger registration scheme. (4) The JITRegistrar class has been removed, and the GDBRegistrar class has been re-written as a JITEventListener. This should fix http://llvm.org/PR20722 . llvm-svn: 222810
* [JIT] Fix more missing endian conversions (opcodes for AArch64, ARM, and ↵Daniel Sanders2014-11-061-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Mips stub functions, and ARM target in general) Summary: Fixed all of the missing endian conversions that Lang Hames and I identified in RuntimeDyldMachOARM.h. Fixed the opcode emission in RuntimeDyldImpl::createStubFunction() for AArch64, ARM, Mips when the host endian doesn't match the target endian. PowerPC will need changing if it's opcodes are affected by endianness but I've left this for now since I'm unsure if this is the case and it's the only path that specifies the target endian. This patch fixes MachO_ARM_PIC_relocations.s on a big-endian Mips host. This is the last of the known issues on this host. Reviewers: lhames Reviewed By: lhames Subscribers: aemerson, llvm-commits Differential Revision: http://reviews.llvm.org/D6130 llvm-svn: 221446
* [MCJIT] Defer application of AArch64 MachO GOT relocations until resolve time.Lang Hames2014-10-211-5/+5
| | | | | | | | | | On AArch64, GOT references are page relative (ADRP + LDR), so they can't be applied until we know exactly where, within a page, the GOT entry will be in the target address space. Fixes <rdar://problem/18693976>. llvm-svn: 220347
* [MCJIT] Replace memcpy with readBytesUnaligned in RuntimeDyldMachOI386.Lang Hames2014-10-101-4/+2
| | | | | | | This should fix the failures of the MachO_i386_DynNoPIC_relocations.s test case on MIPS hosts. llvm-svn: 219543
* Remove bogus std::error_code returns form SectionRef.Rafael Espindola2014-10-082-16/+8
| | | | | | | | | | | | | | There are two methods in SectionRef that can fail: * getName: The index into the string table can be invalid. * getContents: The section might point to invalid contents. Every other method will always succeed and returning and std::error_code just complicates the code. For example, a section can have an invalid alignment, but if we are able to get to the section structure at all and create a SectionRef, we will always be able to read that invalid alignment. llvm-svn: 219314
* [MCJIT] Add support for ARM HALF_DIFF relocations to MCJIT.Lang Hames2014-09-112-58/+115
| | | | | | Fixes <rdar://problem/18297804>. llvm-svn: 217620
* [MCJIT] Take the relocation addend into account when applying ARM MachO VANILLALang Hames2014-09-111-1/+2
| | | | | | | | and BR24 relocations. <rdar://problem/18296496> llvm-svn: 217605
* [MCJIT] Remove redundant architecture check from RuntimeDyldMachOI386.Lang Hames2014-09-101-1/+1
| | | | llvm-svn: 217470
* [MCJIT] Rewrite RuntimeDyldMachO and its derived classes to use the 'Offset'Lang Hames2014-09-074-9/+9
| | | | | | | | | | field of RelocationValueRef, rather than the 'Addend' field. This is consistent with RuntimeDyldELF's use of RelocationValueRef, and more consistent with the semantics of the data being stored (the offset from the start of a section or symbol). llvm-svn: 217328
* [MCJIT] Make sure eh-frame fixups use the target's pointer type, not the host's.Lang Hames2014-09-044-0/+12
| | | | | | | If the wrong pointer type is used it can cause corruption of the frame description entries. llvm-svn: 217124
* Add override to overriden virtual methods, remove virtual keywords.Benjamin Kramer2014-09-034-4/+4
| | | | | | No functionality change. Changes made by clang-tidy + some manual cleanup. llvm-svn: 217028
* [MCJIT] Move endian-aware read/writes from RuntimeDyldMachO intoLang Hames2014-08-293-4/+4
| | | | | | | | | RuntimeDyldImpl. These are platform independent, and moving them to the base class allows RuntimeDyldChecker to use them too. llvm-svn: 216801
* Canonicalize header guards into a common format.Benjamin Kramer2014-08-134-12/+12
| | | | | | | | | | Add header guards to files that were missing guards. Remove #endif comments as they don't seem common in LLVM (we can easily add them back if we decide they're useful) Changes made by clang-tidy with minor tweaks. llvm-svn: 215558
* [MCJIT] Simplify immediate decoding code in the RuntimeDyldMachO hierarchy.Lang Hames2014-08-084-12/+20
| | | | | | | | | | | Cleanup only: no functional change. This patch makes RuntimeDyldMachO targets directly responsible for decoding immediates, rather than letting them implement catch a callback from generic code. Since this is a very target specific operation, it makes sense to let the target-specific code drive it. llvm-svn: 215255
* [MCJIT] Replace a c-style cast with reinterpret_cast + static_cast.Lang Hames2014-08-071-4/+4
| | | | | | | | | | C-style casts (and reinterpret_casts) result in implementation defined values when a pointer is cast to a larger integer type. On some platforms this was leading to bogus address computations in RuntimeDyldMachOAArch64. This should fix http://llvm.org/PR20501. llvm-svn: 215143
* [MCJIT] Fix an overly-aggressive check in RuntimeDyldMachOARM.Lang Hames2014-08-021-5/+0
| | | | | | | This should fix the MachO_ARM_PIC_relocations.s test failures on some 32-bit testers. llvm-svn: 214613
* [MCJIT] Fix the ARM BR24 relocation in RuntimeDyldMachO.Lang Hames2014-07-304-8/+26
| | | | | | | | | | We now (1) correctly decode the branch immediate, (2) modify the immediate to corretly treat it as PC-rel, and (3) properly populate the stub entry. Previously we had been doing each of these wrong. <rdar://problem/17750739> llvm-svn: 214285
* [RuntimeDyld][AArch64] Make encode/decodeAddend also work on big-endian hosts.Juergen Ributzka2014-07-291-18/+31
| | | | llvm-svn: 214205
* [RuntimeDyld][AArch64] Make encode/decodeAddend more typesafe by using the ↵Juergen Ributzka2014-07-291-6/+8
| | | | | | relocation enum type. NFCI. llvm-svn: 214204
* RuntimeDyldMachOAArch64.h: Fix a warning. [-Wunused-variable]NAKAMURA Takumi2014-07-231-0/+1
| | | | llvm-svn: 213710
* Appease the buildbots.Juergen Ributzka2014-07-221-0/+1
| | | | llvm-svn: 213694
* [RuntimeDyld][MachO][AArch64] Add a helper function for encoding addends in ↵Juergen Ributzka2014-07-221-75/+110
| | | | | | | | | | | | | instructions. Factor out the addend encoding into a helper function and simplify the processRelocationRef. Also add a few simple rtdyld tests. More tests to come once GOTs can be tested too. Related to <rdar://problem/17768539> llvm-svn: 213689
* [RuntimeDyld][MachO][AArch64] Implement the decodeAddend method.Juergen Ributzka2014-07-221-0/+92
| | | | | | | This adds the required functionality to decode the immediate encoded in an instruction that is referenced in a relocation entry. llvm-svn: 213688
* [RuntimeDyld][MachO][AArch64] Add assertion to check for duplicate addend ↵Juergen Ributzka2014-07-221-4/+4
| | | | | | | | | | definition. In MachO for AArch64 it is possible to have an explicit addend defined by the ARM64_RELOC_ADDEND relocation or having an addend encoded within the instruction. Only one of them are allowed per relocation. llvm-svn: 213687
* [MCJIT] [AArch64] Make sure to propegate ARM64_RELOC_ADDEND values into theLang Hames2014-07-181-1/+3
| | | | | | | | | | RelocationEntry. No test case yet, as this primarily hits GOT entries, which RuntimeDyldChecker can't examine yet. I'm actively working on features that will enable us to test this. llvm-svn: 213408
* [MCJIT] Fix the alignment requirements for ARM and AArch64 which were mistakenlyLang Hames2014-07-172-2/+2
| | | | | | | | | | relaxed in the big RuntimeDyldMachO cleanup of r213293. No test case yet - this was found via inspection and there's no easy way to test GOT alignment in RuntimeDyldChecker at the moment. I'm working on adding support for this now, and hope to have a test case for this soon. llvm-svn: 213331
* [MCJIT] Significantly refactor the RuntimeDyldMachO class.Lang Hames2014-07-174-0/+854
The previous implementation of RuntimeDyldMachO mixed logic for all targets within a single class, creating problems for readability, maintainability, and performance. To address these issues, this patch strips the RuntimeDyldMachO class down to just target-independent functionality, and moves all target-specific functionality into target-specific subclasses RuntimeDyldMachO. The new class hierarchy is as follows: class RuntimeDyldMachO Implemented in RuntimeDyldMachO.{h,cpp} Contains logic that is completely independent of the target. This consists mostly of MachO helper utilities which the derived classes use to get their work done. template <typename Impl> class RuntimeDyldMachOCRTPBase<Impl> : public RuntimeDyldMachO Implemented in RuntimeDyldMachO.h Contains generic MachO algorithms/data structures that defer to the Impl class for target-specific behaviors. RuntimeDyldMachOARM : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOARM> RuntimeDyldMachOARM64 : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOARM64> RuntimeDyldMachOI386 : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOI386> RuntimeDyldMachOX86_64 : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOX86_64> Implemented in their respective *.h files in lib/ExecutionEngine/RuntimeDyld/MachOTargets Each of these contains the relocation logic specific to their target architecture. llvm-svn: 213293
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