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path: root/tools/llvm-objdump/MachODump.cpp
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* Be a bit more consistent about using ErrorOr when constructing Binary objects.Rafael Espindola2014-01-21
| | | | | | | | | | | | | | | | | | | | | | | The constructors of classes deriving from Binary normally take an error_code as an argument to the constructor. My original intent was to change them to have a trivial constructor and move the initial parsing logic to a static method returning an ErrorOr. I changed my mind because: * A constructor with an error_code out parameter is extremely convenient from the implementation side. We can incrementally construct the object and give up when we find an error. * It is very efficient when constructing on the stack or when there is no error. The only inefficient case is where heap allocating and an error is found (we have to free the memory). The result is that this is a much smaller patch. It just standardizes the create* helpers to return an ErrorOr. Almost no functionality change: The only difference is that this found that we were trying to read past the end of COFF import library but ignoring the error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199770 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove several unused variables.Rafael Espindola2013-10-01
| | | | | | Patch by Alp Toker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191757 91177308-0d34-0410-b5e6-96231b3b80d8
* Move everything depending on Object/MachOFormat.h over to Support/MachO.h.Charles Davis2013-09-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189728 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Fix the build broken by r189315." and "Move everything depending on ↵Charles Davis2013-08-27
| | | | | | | | | Object/MachOFormat.h over to Support/MachO.h." This reverts commits r189319 and r189315. r189315 broke some tests on what I believe are big-endian platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189321 91177308-0d34-0410-b5e6-96231b3b80d8
* Move everything depending on Object/MachOFormat.h over to Support/MachO.h.Charles Davis2013-08-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189315 91177308-0d34-0410-b5e6-96231b3b80d8
* keep only the StringRef version of getFileOrSTDIN.Rafael Espindola2013-06-25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184826 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach llvm-objdump with the -macho parser how to use the data in code tableKevin Enderby2013-06-06
| | | | | | | | | | | | | | | | from the LC_DATA_IN_CODE load command. And when disassembling print the data in code formatted for the kind of data it and not disassemble those bytes. I added the format specific functionality to the derived class MachOObjectFile since these tables only appears in Mach-O object files. This is my first attempt to modify the libObject stuff so if folks have better suggestions how to fit this in or suggestions on the implementation please let me know. rdar://11791371 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183424 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle relocations that don't point to symbols.Rafael Espindola2013-06-05
| | | | | | | | In ELF (as in MachO), not all relocations point to symbols. Represent this properly by using a symbol_iterator instead of a SymbolRef. Update llvm-readobj ELF's dumper to handle relocatios without symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183284 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Disassembled CFG reconstruction.Ahmed Bougacha2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch builds on some existing code to do CFG reconstruction from a disassembled binary: - MCModule represents the binary, and has a list of MCAtoms. - MCAtom represents either disassembled instructions (MCTextAtom), or contiguous data (MCDataAtom), and covers a specific range of addresses. - MCBasicBlock and MCFunction form the reconstructed CFG. An MCBB is backed by an MCTextAtom, and has the usual successors/predecessors. - MCObjectDisassembler creates a module from an ObjectFile using a disassembler. It first builds an atom for each section. It can also construct the CFG, and this splits the text atoms into basic blocks. MCModule and MCAtom were only sketched out; MCFunction and MCBB were implemented under the experimental "-cfg" llvm-objdump -macho option. This cleans them up for further use; llvm-objdump -d -cfg now generates graphviz files for each function found in the binary. In the future, MCObjectDisassembler may be the right place to do "intelligent" disassembly: for example, handling constant islands is just a matter of splitting the atom, using information that may be available in the ObjectFile. Also, better initial atom formation than just using sections is possible using symbols (and things like Mach-O's function_starts load command). This brings two minor regressions in llvm-objdump -macho -cfg: - The printing of a relocation's referenced symbol. - An annotation on loop BBs, i.e., which are their own successor. Relocation printing is replaced by the MCSymbolizer; the basic CFG annotation will be superseded by more related functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182628 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the MachineMove class.Rafael Espindola2013-05-13
| | | | | | | | | | | | It was just a less powerful and more confusing version of MCCFIInstruction. A side effect is that, since MCCFIInstruction uses dwarf register numbers, calls to getDwarfRegNum are pushed out, which should allow further simplifications. I left the MachineModuleInfo::addFrameMove interface unchanged since this patch was already fairly big. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify getRelocationAddress x getRelocationOffset a bit.Rafael Espindola2013-04-25
| | | | | | | | | | getRelocationAddress is for dynamic libraries and executables, getRelocationOffset for relocatable objects. Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a test of ELF's. llvm-readobj -r now prints the same values as readelf -r. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180259 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't read one command past the end.Rafael Espindola2013-04-19
| | | | | | | | | Thanks to Evgeniy Stepanov for reporting this. It might be a good idea to add a command iterator abstraction to MachO.h, but this fixes the bug for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179848 91177308-0d34-0410-b5e6-96231b3b80d8
* At Jim Grosbach's request detemplate Object/MachO.h.Rafael Espindola2013-04-18
| | | | | | | We are still able to handle mixed endian objects by swapping one struct at a time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179778 91177308-0d34-0410-b5e6-96231b3b80d8
* Finish templating MachObjectFile over endianness.Rafael Espindola2013-04-13
| | | | | | | We are now able to handle big endian macho files in llvm-readobject. Thanks to David Fang for providing the object files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179440 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify the code. No functionality change.Rafael Espindola2013-04-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179259 91177308-0d34-0410-b5e6-96231b3b80d8
* Template the MachO types over endianness.Rafael Espindola2013-04-10
| | | | | | For now they are still only used as little endian. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179147 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert MachOObjectFile to a template.Rafael Espindola2013-04-09
| | | | | | | For now it is templated only on being 64 or 32 bits. I will add little/big endian next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179097 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement MachOObjectFile::getHeader directly.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178994 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove LoadCommandInfo now that we always have a pointer to the command.Rafael Espindola2013-04-07
| | | | | | | LoadCommandInfo was needed to keep a command and its offset in the file. Now that we always have a pointer to the command, we don't need the offset. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178991 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MachOObjectFile::LoadCommandInfo.Rafael Espindola2013-04-07
| | | | | | This avoids using MachOObject::getLoadCommandInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178990 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove MachOObjectFile::getObject.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178986 91177308-0d34-0410-b5e6-96231b3b80d8
* Make getObject const. Remove a const_cast.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178980 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove last use of InMemoryStruct in llvm-objdump.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178979 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178977 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused argument.Rafael Espindola2013-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178976 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't fetch pointers from a InMemoryStruct.Rafael Espindola2013-04-05
| | | | | | | | InMemoryStruct is extremely dangerous as it returns data from an internal buffer when the endiannes doesn't match. This should fix the tests on big endian hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178875 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a function to get the segment name of a section.Rafael Espindola2012-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be inform the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. The main difference from the previous patch is that it doesn't use InMemoryStruct. It is extremely dangerous: if the endians match it returns a pointer to the file buffer, if not, it returns a pointer to an internal buffer that is overwritten in the next API call. We should change all of this code to use support::detail::packed_endian_specific_integral like ELF, but since these functions only handle strings, they work with big and little endian machines as is. I have tested this by installing ubuntu 12.10 ppc on qemu, that is why it took so long :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170838 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 170545 while I debug the ppc failures.Rafael Espindola2012-12-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170547 91177308-0d34-0410-b5e6-96231b3b80d8
* Add r170095 back.Rafael Espindola2012-12-19
| | | | | | | | | | | | | | | | | | | | | | | I cannot reproduce it the failures locally, so I will keep an eye at the ppc bots. This patch does add the change to the "Disassembly of section" message, but that is not what was failing on the bots. Original message: Add a funciton to get the segment name of a section. On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be infor the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170545 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Add a funciton to get the segment name of a section."Eric Christopher2012-12-13
| | | | | | This reverts commit r170095 since it appears to be breaking the bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170105 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a funciton to get the segment name of a section.Rafael Espindola2012-12-13
| | | | | | | | | | | | | | | On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one, anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be informing the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170095 91177308-0d34-0410-b5e6-96231b3b80d8
* Sort the #include lines for tools/...Chandler Carruth2012-12-04
| | | | | | | | Again, tools are trickier to pick the main module header for than library source files. I've started to follow the pattern of using LLVMContext.h when it is included as a stub for program source files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169252 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite DIContext interface to take an object. Update all callers.Eric Christopher2012-11-12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167757 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove tabs.Bill Wendling2012-07-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160480 91177308-0d34-0410-b5e6-96231b3b80d8
* Need a space.Evan Cheng2012-07-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159565 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a bug in llvm-objdump when disassembling using -macho option for a binaryKevin Enderby2012-05-18
| | | | | | | containing no symbols. Fixed the crash and fixed it not disassembling anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157031 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a bug in llvm-objdump when disassembling using -macho option for a binaryKevin Enderby2012-05-15
| | | | | | | | that has more than one symbol. The last symbol was not being disassembled to the end of the section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156840 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MCInstrInfo available to the MCInstPrinter. This will be used to remove ↵Craig Topper2012-04-02
| | | | | | getInstructionName and the static data it contains since the same tables are already in MCInstrInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153860 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MCRegisterInfo available to the the MCInstPrinter.Jim Grosbach2012-03-05
| | | | | | | Used to allow context sensitive printing of super-register or sub-register references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow command-line overrides of the target triple with the Mach-OCameron Zwarich2012-02-03
| | | | | | disassembler, just like the generic disassembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149681 91177308-0d34-0410-b5e6-96231b3b80d8
* Do the same fix as r149667, but for the Mach-O disassembler.Cameron Zwarich2012-02-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149674 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed ObjectFile functions:Danil Malyshev2011-11-29
| | | | | | | | | | | | - getSymbolOffset() renamed as getSymbolFileOffset() - getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile. - added getRelocationOffset() - fixed MachOObjectFile::getSymbolSize() - fixed MachOObjectFile::getSymbolSection() - fixed MachOObjectFile::getSymbolOffset() for symbols without section data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145408 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r145180 as it is causing test failures on all the bots.Chandler Carruth2011-11-27
| | | | | | | | | | | | | Original commit message: Fixed ObjectFile functions: - getSymbolOffset() renamed as getSymbolFileOffset() - getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile. - added getRelocationOffset() - fixed MachOObjectFile::getSymbolSize() - fixed MachOObjectFile::getSymbolSection() - fixed MachOObjectFile::getSymbolOffset() for symbols without section data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145182 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed ObjectFile functions:Danil Malyshev2011-11-27
| | | | | | | | | | | - getSymbolOffset() renamed as getSymbolFileOffset() - getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile. - added getRelocationOffset() - fixed MachOObjectFile::getSymbolSize() - fixed MachOObjectFile::getSymbolSection() - fixed MachOObjectFile::getSymbolOffset() for symbols without section data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145180 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix llvm-objdump's MachO mode to not depend on the value returned by ↵Owen Anderson2011-11-07
| | | | | | RelocationRef::getInfo(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143966 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more PRI.64 macros for MSVC and use them throughout the codebase.Benjamin Kramer2011-11-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143799 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand relocation type field to 64 bits. MachO scattered relocations ↵Owen Anderson2011-10-26
| | | | | | require 33 bits of type info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143032 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite most of MachODump to work through the generic libObject interfaces ↵Owen Anderson2011-10-17
| | | | | | rather than accessing the MachO internals directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142263 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-objdump: Take ownership of MCInstrInfos.Benjamin Kramer2011-10-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141535 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix spelling in comment.Michael J. Spencer2011-10-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141386 91177308-0d34-0410-b5e6-96231b3b80d8
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