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* [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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