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* [RuntimeDyld, PowerPC] Fix/improve handling of TOC relocationsUlrich Weigand2014-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current PPC64 RuntimeDyld code to handle TOC relocations has two problems: - With recent linkers, in addition to the relocations that implicitly refer to the TOC base (R_PPC64_TOC*), you can now also use the .TOC. magic symbol with any other relocation to refer to the TOC base explicitly. This isn't currently used much in ELFv1 code (although it could be), but it is essential in ELFv2 code. - In a complex JIT environment with multiple modules, each module may have its own .toc section, and TOC relocations in one module must refer to *its own* TOC section. The current findPPC64TOC implementation does not correctly implement this; in fact, it will always return the address of the first TOC section it finds anywhere. (Note that at the time findPPC64TOC is called, we don't even *know* which module the relocation originally resided in, so it is not even possible to fix this routine as-is.) This commit fixes both problems by handling TOC relocations earlier, in processRelocationRef. To do this, I've removed the findPPC64TOC routine and replaced it by a new routine findPPC64TOCSection, which works analogously to findOPDEntrySection in scanning the sections of the ObjImage provided by its caller, processRelocationRef. This solves the issue of finding the correct TOC section associated with the current module. This makes it straightforward to implement both R_PPC64_TOC relocations, and relocations explicitly refering to the .TOC. symbol, directly in processRelocationRef. There is now a new problem in implementing the R_PPC64_TOC16* relocations, because those can now in theory involve *three* different sections: the relocation may be applied in section A, refer explicitly to a symbol in section B, and refer implicitly to the TOC section C. The final processing of the relocation thus may only happen after all three of these sections have been assigned final addresses. There is currently no obvious means to implement this in its general form with the common-code RuntimeDyld infrastructure. Fortunately, ppc64 code usually makes no use of this most general form; in fact, TOC16 relocations are only ever generated by LLVM for symbols residing themselves in the TOC, which means "section B" == "section C" in the above terminology. This special case can easily be handled with the current infrastructure, and that is what this patch does. [ Unhandled cases result in an explicit error, unlike the current code which silently returns the wrong TOC base address ... ] This patch makes the JIT work on both BE and LE (ELFv2 requires additional patches, of course), and allowed me to successfully run complex JIT scenarios (via mesa/llvmpipe). Reviewed by Hal Finkel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211885 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove all uses of 'using std::error_code' from headers.Rafael Espindola2014-06-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210866 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use 'using std::error_code' in include/llvm.Rafael Espindola2014-06-12
| | | | | | This should make sure that most new uses use the std prefix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210835 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Add support for MachO __jump_table and __pointers sections, andLang Hames2014-05-12
| | | | | | | | | | | | | SECTDIFF relocations on 32-bit x86. This fixes several of the MCJIT regression test failures that show up on 32-bit builds. <rdar://problem/16886294> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208635 91177308-0d34-0410-b5e6-96231b3b80d8
* [ARM64] Try and make the ELF MCJIT *slightly* less broken for ARM64.James Molloy2014-04-30
| | | | | | | | | A bunch of switch cases were missing, not just for ARM64 but also for AArch64_BE. I've fixed all those, but there's zero testing as ExecutionEngine tests are disabled when crosscompiling and I don't have a native platform available to test on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207626 91177308-0d34-0410-b5e6-96231b3b80d8
* PR19553: Memory leak in RuntimeDyldELF::createObjectImageFromFileDavid Blaikie2014-04-29
| | | | | | | | | | | | | | | | This starts in MCJIT::getSymbolAddress where the unique_ptr<object::Binary> is release()d and (after a cast) passed to a single caller, MCJIT::addObjectFile. addObjectFile calls RuntimeDyld::loadObject. RuntimeDld::loadObject calls RuntimeDyldELF::createObjectFromFile And the pointer is never owned at this point. I say this point, because the alternative codepath, RuntimeDyldMachO::createObjectFile certainly does take ownership, so this seemed like a good hint that this was a/the right place to take ownership. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207580 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] clang-format files.Juergen Ributzka2014-03-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204507 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Allow processRelocationRef to process more than one relocation ↵Juergen Ributzka2014-03-21
| | | | | | | | | | | | | entry at a time. Some targets require more than one relocation entry to perform a relocation. This change allows processRelocationRef to process more than one relocation entry at a time by passing the relocation iterator itself instead of just the relocation entry. Related to <rdar://problem/16199095> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204439 91177308-0d34-0410-b5e6-96231b3b80d8
* Make createObjectImage and createObjectImageFromFile static methods on theLang Hames2014-03-08
| | | | | | | | | | relevant subclasses of RuntimeDyldImpl. This allows construction of RuntimeDyldImpl instances to be deferred until after the target architecture is known. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203352 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Add 'override' keyword to virtual methods that override their base ↵Craig Topper2014-03-08
| | | | | | class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203344 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix known typosAlp Toker2014-01-24
| | | | | | | Sweep the codebase for common typos. Includes some changes to visible function names that were misspelt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200018 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply r196639: Add support for archives and object file caching under MCJIT.Lang Hames2014-01-08
| | | | | | | | | | I believe the bot failures on linux systems were due to overestimating the alignment of object-files within archives, which are only guaranteed to be two-byte aligned. I have reduced the alignment in RuntimeDyldELF::createObjectImageFromFile accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198737 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r196639 while I investigate a bot failure.Lang Hames2013-12-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196641 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for archives and object file caching under MCJIT.Lang Hames2013-12-07
| | | | | | | | Patch by Andy Kaylor, with minor edits to resolve merge conflicts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196639 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding support for deregistering EH frames with MCJIT.Andrew Kaylor2013-10-16
| | | | | | | | Patch by Yaron Keren git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192753 91177308-0d34-0410-b5e6-96231b3b80d8
* Separating ELF and MachO stub info functions for RuntimeDyldAndrew Kaylor2013-10-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192737 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding multiple object support to MCJIT EH frame handlingAndrew Kaylor2013-10-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192504 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding multiple GOT handling to RuntimeDyldELFAndrew Kaylor2013-10-05
| | | | | | | | Patch by Ashok Thirumurthi git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192020 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding PIC support for ELF on x86_64 platformsAndrew Kaylor2013-08-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188726 91177308-0d34-0410-b5e6-96231b3b80d8
* Add EH support to the MCJIT.Rafael Espindola2013-05-05
| | | | | | | | | This gets exception handling working on ELF and Macho (x86-64 at least). Other than the EH frame registration, this patch also implements support for GOT relocations which are used to locate the personality function on MachO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181167 91177308-0d34-0410-b5e6-96231b3b80d8
* AArch64: implement first relocation required for MCJITTim Northover2013-05-04
| | | | | | | | | | | R_AARCH64_PCREL32 is present in even trivial .eh_frame sections and so is required to compile any function without the "nounwind" attribute. This change implements very basic infrastructure in the RuntimeDyldELF file and allows (for example) the test-shift.ll MCJIT test to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181131 91177308-0d34-0410-b5e6-96231b3b80d8
* [SystemZ] Add MCJIT supportRichard Sandiford2013-05-03
| | | | | | | | | Another step towards reinstating the SystemZ backend. I'll commit the configure changes separately (TARGET_HAS_JIT etc.), then commit a patch to enable the MCJIT tests on SystemZ. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181015 91177308-0d34-0410-b5e6-96231b3b80d8
* Add getSymbolAlignment to the ObjectFile interface.Rafael Espindola2013-04-29
| | | | | | | | | | | | | For regular object files this is only meaningful for common symbols. An object file format with direct support for atoms should be able to provide alignment information for all symbols. This replaces getCommonSymbolAlignment and fixes test-common-symbols-alignment.ll on darwin. This also includes a fix to MachOObjectFile::getSymbolFlags. It was marking undefined symbols as common (already tested by existing mcjit tests now that it is used). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180736 91177308-0d34-0410-b5e6-96231b3b80d8
* Rationalize what is public in RuntimeDyldMachO and RuntimeDyldELF.Rafael Espindola2013-04-29
| | | | | | | | The implemented RuntimeDyldImpl interface is public. Everything else is private. Since these classes are not inherited from (yet), there is no need to have protected members. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180733 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a RelocationRef instead of a relocation_iterator.Rafael Espindola2013-04-29
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180723 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate relocation info to resolveRelocation.Rafael Espindola2013-04-29
| | | | | | This gets most of the MCJITs tests passing with MachO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180716 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace ObjRelocationInfo with relocation_iterator.Rafael Espindola2013-04-29
| | | | | | | | | | | For MachO we need information that is not represented in ObjRelocationInfo. Instead of copying the bits we think are needed from a relocation_iterator, just pass the relocation_iterator down to the format specific functions. No functionality change yet as we still drop the information once processRelocationRef returns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180711 91177308-0d34-0410-b5e6-96231b3b80d8
* Change resolveRelocation parameters so the relocations can find placeholder ↵Andrew Kaylor2012-11-02
| | | | | | | | values in the original object buffer. Some ELF relocations require adding the a value to the original contents of the object buffer at the specified location. In order to properly handle multiple applications of a relocation, the RuntimeDyld code should be grabbing the original value from the object buffer and writing a new value into the loaded section buffer. This patch changes the parameters passed to resolveRelocations to accommodate this need. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167304 91177308-0d34-0410-b5e6-96231b3b80d8
* Make use of common-symbol alignment info in ELF loader.Tim Northover2012-10-29
| | | | | | Patch by Amara Emerson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166919 91177308-0d34-0410-b5e6-96231b3b80d8
* PowerPC: Initial support for PowerPC64 MCJITAdhemerval Zanella2012-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds initial support for MCJIT for PPC64-elf-abi. The TOC relocation and ODP handling is implemented. It fixes the following ExecutionEngine testcases: ExecutionEngine/2003-01-04-ArgumentBug.ll ExecutionEngine/2003-01-04-LoopTest.ll ExecutionEngine/2003-01-04-PhiTest.ll ExecutionEngine/2003-01-09-SARTest.ll ExecutionEngine/2003-01-10-FUCOM.ll ExecutionEngine/2003-01-15-AlignmentTest.ll ExecutionEngine/2003-05-11-PHIRegAllocBug.ll ExecutionEngine/2003-06-04-bzip2-bug.ll ExecutionEngine/2003-06-05-PHIBug.ll ExecutionEngine/2003-08-15-AllocaAssertion.ll ExecutionEngine/2003-08-21-EnvironmentTest.ll ExecutionEngine/2003-08-23-RegisterAllocatePhysReg.ll ExecutionEngine/2003-10-18-PHINode-ConstantExpr-CondCode-Failure.ll ExecutionEngine/simplesttest.ll ExecutionEngine/simpletest.ll ExecutionEngine/stubs.ll ExecutionEngine/test-arith.ll ExecutionEngine/test-branch.ll ExecutionEngine/test-call-no-external-funcs.ll ExecutionEngine/test-cast.ll ExecutionEngine/test-common-symbols.ll ExecutionEngine/test-constantexpr.ll ExecutionEngine/test-fp-no-external-funcs.ll ExecutionEngine/test-fp.ll ExecutionEngine/test-global-init-nonzero.ll ExecutionEngine/test-global.ll ExecutionEngine/test-loadstore.ll ExecutionEngine/test-local.ll ExecutionEngine/test-logical.ll ExecutionEngine/test-loop.ll ExecutionEngine/test-phi.ll ExecutionEngine/test-ret.ll ExecutionEngine/test-return.ll ExecutionEngine/test-setcond-fp.ll ExecutionEngine/test-setcond-int.ll ExecutionEngine/test-shift.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166678 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean-up of memory buffer and object ownership model in MCJITAndrew Kaylor2012-10-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165053 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix coding style violations in 162135 and 162136.Akira Hatanaka2012-08-20
| | | | | | | Patch by Petar Jovanovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162213 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct MCJIT functionality for MIPS32 architecture.Akira Hatanaka2012-08-17
| | | | | | | | | | | No new tests are added. All tests in ExecutionEngine/MCJIT that have been failing pass after this patch is applied (when "make check" is done on a mips board). Patch by Petar Jovanovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162135 91177308-0d34-0410-b5e6-96231b3b80d8
* RuntimeDyld code cleanup:Eli Bendersky2012-05-01
| | | | | | | | | | | - There's no point having a different type for the local and global symbol tables. - Renamed SymbolTable to GlobalSymbolTable to clarify the intention - Improved const correctness where relevant git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155898 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement GDB integration for source level debugging of code JITed usingPreston Gurd2012-04-16
| | | | | | | | | | | | | | | | the MCJIT execution engine. The GDB JIT debugging integration support works by registering a loaded object image with a pre-defined function that GDB will monitor if GDB is attached. GDB integration support is implemented for ELF only at this time. This integration requires GDB version 7.0 or newer. Patch by Andy Kaylor! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154868 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-factored RuntimeDyLd:Danil Malyshev2012-03-30
| | | | | | | | | | | | | | | 1. The main works will made in the RuntimeDyLdImpl with uses the ObjectFile class. RuntimeDyLdMachO and RuntimeDyLdELF now only parses relocations and resolve it. This is allows to make improvements of the RuntimeDyLd more easily. In addition the support for COFF can be easily added. 2. Added ARM relocations to RuntimeDyLdELF. 3. Added support for stub functions for the ARM, allowing to do a long branch. 4. Added support for external functions that are not loaded from the object files, but can be loaded from external libraries. Now MCJIT can correctly execute the code containing the printf, putc, and etc. 5. The sections emitted instead functions, thanks Jim Grosbach. MemoryManager.startFunctionBody() and MemoryManager.endFunctionBody() have been removed. 6. MCJITMemoryManager.allocateDataSection() and MCJITMemoryManager. allocateCodeSection() used JMM->allocateSpace() instead of JMM->allocateCodeSection() and JMM->allocateDataSection(), because I got an error: "Cannot allocate an allocated block!" with object file contains more than one code or data sections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153754 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r153694. It was causing failures in the buildbots.Bill Wendling2012-03-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153701 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-factored RuntimeDyld.Danil Malyshev2012-03-29
| | | | | | Added ExecutionEngine/MCJIT tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153694 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert a series of commits to MCJIT to get the build working in CMakeChandler Carruth2012-03-22
| | | | | | | | | | | | | | | (and hopefully on Windows). The bots have been down most of the day because of this, and it's not clear to me what all will be required to fix it. The commits started with r153205, then r153207, r153208, and r153221. The first commit seems to be the real culprit, but I couldn't revert a smaller number of patches. When resubmitting, r153207 and r153208 should be folded into r153205, they were simple build fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153241 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-factored RuntimeDyld.Danil Malyshev2012-03-21
| | | | | | Added ExecutionEngine/MCJIT tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153221 91177308-0d34-0410-b5e6-96231b3b80d8
* Split the lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h header to ↵Eli Bendersky2012-01-22
smaller logical headers. ELF and MachO implementations of RuntimeDyldImpl go into their own header files now. Reviewed on llvm-commits git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148652 91177308-0d34-0410-b5e6-96231b3b80d8
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