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* [RuntimeDyld] Make RuntimeDyld honor the ProcessAllSections flag.Lang Hames2017-04-041-2/+2
| | | | | | | | | | | | | | | When the ProcessAllSections flag (introduced in r204398) is set RuntimeDyld is supposed to make a call to the client's memory manager for every section in each object that is loaded. Due to some missing checks, this was not happening in all cases. This patch adds the missing cases, and fixes the Orc unit test that verifies correct behavior for ProcessAllSections (The unit test had been silently bailing out due to an ordering issue: a change in the test order meant that this unit-test was running before the native target was registered. This issue has also been fixed in this patch). This fixes <rdar://problem/22789965> llvm-svn: 299449
* RuntimeDyldELF/AArch64: Implement basic GOT supportEugene Leviant2017-02-064-73/+176
| | | | | | | | | This patch implements two GOT relocations: R_AARCH64_ADR_GOT_PAGE and R_AARCH64_LD64_GOT_LO12_NC Differential revision: https://reviews.llvm.org/D28571 llvm-svn: 294191
* RuntimeDyldELF: Don't abort on R_X86_64_NONE, it's a no-oop.Will Dietz2017-01-281-0/+2
| | | | llvm-svn: 293388
* RuntimeDyldELF: add LDST128_ABS_LO12_NC relocEugene Leviant2017-01-231-0/+6
| | | | llvm-svn: 292788
* RuntimeDyldELF: add LDST8_ABS_LO12_NC and LDST16_ABS_LO12_NC relocsEugene Leviant2017-01-231-1/+13
| | | | | | Differential revision: https://reviews.llvm.org/D28863 llvm-svn: 292785
* RuntimeDyldELF: implement R_AARCH64_PREL64 relocEugene Leviant2017-01-101-0/+3
| | | | | | Differential revision: https://reviews.llvm.org/D28122 llvm-svn: 291558
* Fix MSVC build failure introduced in r291431Pavel Labath2017-01-091-4/+3
| | | | | | | MSVC does not like to reinterpret_cast to a uint64_t. Use a different cast instead. llvm-svn: 291435
* RuntimeDyldELF: don't create thunk if not neededEugene Leviant2017-01-092-1/+47
| | | | | | | | | | | | | This patch doesn't create thunk for branch operation when following conditions are met: - Architecture is AArch64 - Relocation target is in the same object file - Relocation target is close enough to be encoded in immediate offset In such case we branch directly to the target instead of branching to thunk Differential revision: https://reviews.llvm.org/D28108 llvm-svn: 291431
* RuntimeDyldELF: refactor AArch64 relocations. NFC.Eugene Leviant2016-12-271-106/+44
| | | | llvm-svn: 290606
* RuntimeDyldELF: add R_AARCH64_ADD_ABS_LO12_NC relocEugene Leviant2016-12-271-0/+9
| | | | | | Differential revision: https://reviews.llvm.org/D28115 llvm-svn: 290598
* Update mailing list post URL and add libunwind referenceEd Maste2016-12-211-1/+2
| | | | | | | | | | | | | RTDyldMemoryManager.cpp describes the differing __register_frame API between libunwind and libgcc, with a mailing list posting URL. The original link was 404; replace it with what I believe is the intended post, as well as a reference to the "OS X" implementation in libunwind. Differential Revision: https://reviews.llvm.org/D27965 llvm-svn: 290269
* Fix R_AARCH64_MOVW_UABS_G3 relocationYichao Yu2016-12-151-23/+49
| | | | | | | | | | | | Summary: The relocation is missing mask so an address that has non-zero bits in 47:43 may overwrite the register number. (Frequently shows up as target register changed to `xzr`....) Reviewers: t.p.northover, lhames Subscribers: davide, aemerson, rengolin, llvm-commits Differential Revision: https://reviews.llvm.org/D27609 llvm-svn: 289880
* [mips][rtdyld] Move MIPS relocation resolution to a subclass and implement ↵Simon Dardis2016-12-136-306/+411
| | | | | | | | | | | | | | | N32 relocations N32 relocations are only correct for individual relocations at the moment. Support for relocation composition will follow in a later patch. Patch By: Daniel Sanders Reviwers: vkalintiris, atanasyan Differential Revision: https://reviews.llvm.org/D27467 llvm-svn: 289532
* [mips][rtdyld] Merge code to write relocated values to the section. NFCSimon Dardis2016-12-072-126/+111
| | | | | | | | | | | | Preparation work for implementing N32 support. Patch By: Daniel Sanders Reviewers: vkalintiris, atanasyan Differential Revision: https://reviews.llvm.org/D27460 llvm-svn: 288900
* [RuntimeDyld] Skip undefined symbols when building the symbol table.Lang Hames2016-11-301-0/+4
| | | | | | Storing these in the symbol table (with zero values) is just wasted space. llvm-svn: 288225
* Fix comment typos. NFC.Simon Pilgrim2016-11-201-2/+2
| | | | | | Identified by Pedro Giffuni in PR27636. llvm-svn: 287490
* Fix cross-endianness RuntimeDyld relocation for ARMKeno Fischer2016-10-201-9/+10
| | | | | | | | | rL284780 fixed the PREL31 relocation and added a test for it. Being the first such test for ARM relocations, it exposed incorrect endianness assumptions (causing buildbot failures on big-endian hosts). Fix that by using the same helpers used for the x86 case. llvm-svn: 284789
* Fix PREL31 relocation on ARMKeno Fischer2016-10-201-0/+4
| | | | | | | | | | | | | Summary: This is a 31bits relative relocation instead of a 32bits absolute relocation. Reviewers: t.p.northover, peter.smith, rengolin Subscribers: aemerson, llvm-commits, samparker Differential Revision: https://reviews.llvm.org/D25069 llvm-svn: 284780
* [mips][mcjit] Add the majority of N32 support.Simon Dardis2016-10-203-17/+36
| | | | | | | | | The missing piece is relocation composition for %hi(%neg(%gp_rel(x))) and similar. Patch by: Daniel Sanders llvm-svn: 284724
* Remove LLVM_NOEXCEPT and replace it with noexceptReid Kleckner2016-10-191-1/+1
| | | | | | | Now that we have dropped MSVC 2013, all supported compilers support noexcept and we can drop this portability macro. llvm-svn: 284672
* Handle relocations to thumb functions when dynamic linking COFF modulesWalter Erquinigo2016-10-172-9/+58
| | | | | | | | | | | | | | | | Summary: This adds the necessary logic to support relocations to thumb functions in the COFF dynamic linker. The jumps to function addresses are mostly blx, which requires the ISA selection bit when jumping to a thumb function. Note: I'm determining if the relocation requires the ISA bit when creating the relocation entries and not when resolving the relocation. I have to do that because I need the ObjectFile and the actual Symbol, which are available only when creating the entries. It would require a gross refactor if I do it otherwise, but I'm okay with doing it if you think it's better. Reviewers: peter.smith, compnerd Subscribers: rengolin, sas Differential Revision: https://reviews.llvm.org/D25151 llvm-svn: 284410
* ExecutionEngine: fix a bug in the movt/movw relocatorSaleem Abdulrasool2016-08-291-1/+1
| | | | | | | | | | According to the arm arm specifications, 4 bytes are needed for a shift instead of 8, this was causing the movt instruction to write to a different register sometimes. Patch by Walter Erquinigo! llvm-svn: 280005
* [RuntimeDyld] Revert r279182 and 279201 -- they broke some ARM bots.Lang Hames2016-08-191-16/+0
| | | | llvm-svn: 279275
* [RuntimeDyld] Add support for ELF R_ARM_REL32 and R_ARM_GOT_PREL.Lang Hames2016-08-191-0/+16
| | | | | | | | | | | | | | | | Patch by William Dillon. Thanks William! This patch adds support for the R_ARM_REL32 and R_ARM_GOT_PREL ELF ARM relocations to RuntimeDyld, which should allow JITing of code that produces these relocations. No test case: Unfortunately RuntimeDyldELF's GOT building mechanism (which uses a separate section for GOT entries) isn't compatible with RuntimeDyldChecker. The correct fix for this is to fix RuntimeDyldELF's GOT support (it's fundamentally broken at the moment: separate sections aren't guaranteed to be in range of a GOT entry load), but that's a non-trivial job. llvm-svn: 279182
* Revert r279016 -- it breaks win32-elf JIT tests.Lang Hames2016-08-181-2/+2
| | | | llvm-svn: 279029
* [RuntimeDyld] Strip leading '_' from symbols on 32-bit windows inLang Hames2016-08-181-2/+2
| | | | | | | | | | | RTDyldMemoryManager::getSymbolAddressInProcess() This should allow JIT'd code for win32 to find in-process symbols. See http://llvm.org/PR28699 . Patch by James Holderness. Thanks James! llvm-svn: 279016
* Replace "fallthrough" comments with LLVM_FALLTHROUGHJustin Bogner2016-08-171-2/+4
| | | | | | | This is a mechanical change of comments in switches like fallthrough, fall-through, or fall-thru to use the LLVM_FALLTHROUGH macro instead. llvm-svn: 278902
* Re-apply r278065 (Weak symbol support in RuntimeDyld) with a fix for ELF.Lang Hames2016-08-092-0/+19
| | | | llvm-svn: 278149
* Revert r278065 while I investigate some build-bot breakage.Lang Hames2016-08-081-18/+0
| | | | llvm-svn: 278069
* [RuntimeDyld][Orc][MCJIT] Add partial weak-symbol support to RuntimeDyld.Lang Hames2016-08-081-0/+18
| | | | | | | | | | | | | | | This patch causes RuntimeDyld to check for existing definitions when it encounters weak symbols. If a definition already exists then the new weak definition is discarded. All symbol lookups within a "logical dylib" should now agree on the address of any given weak symbol. This allows the JIT to better match the behavior of the static linker for C++ code. This support is only partial, as it does not allow strong definitions that occur after the first weak definition (in JIT symbol lookup order) to override the previous weak definitions. Support for this will be added in a future patch. llvm-svn: 278065
* [ExecutionEngine][RuntimeDyld] Move JITSymbol from ExecutionEngine to ↵Lang Hames2016-08-072-0/+42
| | | | | | | | | RuntimeDyld. JITSymbol really belongs in RuntimeDyld. This should fix the llvm-rtdyld link failures caused by r277943. llvm-svn: 277945
* [RuntimeDyld] Remove symbol that is unused as of r277943.Lang Hames2016-08-071-1/+0
| | | | llvm-svn: 277944
* [RuntimeDyld] Replace manual flag checks with JITSymbolFlags::fromObjectSymbol.Lang Hames2016-08-071-13/+5
| | | | llvm-svn: 277943
* [ExecutionEngine] Refactor - Roll JITSymbolFlags functionality into JITSymbol.hLang Hames2016-08-042-4/+7
| | | | | | and remove the JITSymbolFlags header. llvm-svn: 277766
* [Orc] Fix common symbol support in ORC.Lang Hames2016-08-011-2/+8
| | | | | | | | | | | | | Common symbol support in ORC was broken in r270716 when the symbol resolution rules in RuntimeDyld were changed. With the switch to lazily materialized symbols in r277386, common symbols can be supported by having RuntimeDyld::emitCommonSymbols search for (but not materialize!) definitions elsewhere in the logical dylib. This patch adds the 'Common' flag to JITSymbolFlags, and the necessary check to RuntimeDyld::emitCommonSymbols. llvm-svn: 277397
* [ExecutionEngine][MCJIT][Orc] Replace RuntimeDyld::SymbolInfo with JITSymbol.Lang Hames2016-08-0115-28/+28
| | | | | | | | | | | | | | | | This patch replaces RuntimeDyld::SymbolInfo with JITSymbol: A symbol class that is capable of lazy materialization (i.e. the symbol definition needn't be emitted until the address is requested). This can be used to support common and weak symbols in the JIT (though this is not implemented in this patch). For consistency, RuntimeDyld::SymbolResolver is renamed to JITSymbolResolver. For space efficiency a new class, JITEvaluatedSymbol, is introduced that behaves like the old RuntimeDyld::SymbolInfo - i.e. it is just a pair of an address and symbol flags. Instances of JITEvaluatedSymbol can be used in symbol-tables to avoid paying the space cost of the materializer. llvm-svn: 277386
* [LLVM][MIPS] Fix createStubFunction to emit JR encoding based on Arch.Nitesh Jain2016-07-152-2/+9
| | | | | | | | | | Reviewers: vkalintiris, dsanders Subscribers: jaydeep, bhushan, mohit.bhakkad, slthakur, llvm-commits Differential Revision: https://reviews.llvm.org/D21172 llvm-svn: 275559
* X86: handle external tail calls in Windows JITSaleem Abdulrasool2016-07-141-2/+4
| | | | | | | | | | If there was a tail call, we would incorrectly handle the relocation. It would end up indexing into the array with an incorrect section id. The symbol was external to the module, so the Section ID was UNDEFINED (-1). We would then index the SmallVector with this ID, triggering an assertion. Use the Value rather than the section load address in this case. llvm-svn: 275442
* Prune RelocVisitor.h include to avoid including COFF.h from MCJIT.hReid Kleckner2016-07-061-0/+3
| | | | | | | This helps to mitigate the conflict between COFF.h and winnt.h, which is PR28399. llvm-svn: 274637
* Reformat blank lines.NAKAMURA Takumi2016-07-041-2/+2
| | | | llvm-svn: 274481
* Reformat comment lines.NAKAMURA Takumi2016-07-041-1/+1
| | | | llvm-svn: 274480
* Untabify.NAKAMURA Takumi2016-07-041-4/+3
| | | | llvm-svn: 274479
* Reformat.NAKAMURA Takumi2016-07-041-4/+5
| | | | llvm-svn: 274478
* Thread Expected<...> up from libObject’s getSymbolAddress() for symbols to ↵Kevin Enderby2016-06-241-4/+4
| | | | | | | | | | | | | | | | | | | | | allow a good error message to be produced. This is nearly the last libObject interface that used ErrorOr and the last one that appears in llvm/include/llvm/Object/MachO.h . For Mach-O objects this is just a clean up because it’s version of getSymbolAddress() can’t return an error. I will leave it to the experts on COFF and ELF to actually add meaning full error messages in their tests if they wish. And also leave it to these experts to change the last two ErrorOr interfaces in llvm/include/llvm/Object/ObjectFile.h for createCOFFObjectFile() and createELFObjectFile() if they wish. Since there are no test cases for COFF and ELF error cases with respect to getSymbolAddress() in the test suite this is no functional change (NFC). llvm-svn: 273701
* ExecutionEngine: silence unused value warningSaleem Abdulrasool2016-06-241-0/+3
| | | | | | | The Value is only used in debug or asserts builds. Just cast to void to silence an unused variable warning. llvm-svn: 273684
* ExecutionEngine: add preliminary support for COFF ARMSaleem Abdulrasool2016-06-242-5/+294
| | | | | | | | | This adds rudimentary support for COFF ARM to the dynamic loader for the exeuction engine. This can be used by lldb to JIT code into a COFF ARM environment. This lays the foundation for the loader, though a few of the relocation types are yet unhandled. llvm-svn: 273682
* Apply another batch of fixes from clang-tidy's ↵Benjamin Kramer2016-06-171-2/+2
| | | | | | | | performance-unnecessary-value-param. Contains some manual fixes. No functionality change intended. llvm-svn: 273047
* [PATCH] Fix RuntimeDyldCOFFI386 to handle relocations with a non-zero addendReid Kleckner2016-06-161-3/+21
| | | | | | | | | This fixes IMAGE_REL_I386_DIR32, IMAGE_REL_I386_DIR32NB, IMAGE_REL_I386_SECREL, and IMAGE_REL_I386_REL32 relocations. Based on patch by Jon Turney <jon.turney@dronecode.org.uk> llvm-svn: 272911
* Apply clang-tidy's misc-move-constructor-init throughout LLVM.Benjamin Kramer2016-05-271-3/+5
| | | | | | No functionality change intended, maybe a tiny performance improvement. llvm-svn: 270997
* [RuntimeDyld] Call the SymbolResolver::findSymbolInLogicalDylib method whenLang Hames2016-05-251-1/+5
| | | | | | | | | | | | | | | | | searching for external symbols, and fall back to the SymbolResolver::findSymbol method if the former returns null. This makes RuntimeDyld behave more like a static linker: Symbol definitions from within the current module's "logical dylib" will be preferred to external definitions. We can build on this behavior in the future to properly support weak symbol handling. Custom symbol resolvers that override the findSymbolInLogicalDylib method may notice changes due to this patch. Clients who have not overridden this method should generally be unaffected, however users of the OrcMCJITReplacement class may notice changes. llvm-svn: 270716
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