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path: root/tools/llvm-objdump/llvm-objdump.cpp
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* Re-submit r191472 with a fix for big endian.Rui Ueyama2013-09-27
| | | | | | llvm-objdump: Dump COFF import table if -private-headers option is given. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191557 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "llvm-objdump: Dump COFF import table if -private-headers option is ↵Rui Ueyama2013-09-27
| | | | | | | | given." This reverts commit r191472 because it's failing on BE machine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191480 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-objdump: Dump COFF import table if -private-headers option is given.Rui Ueyama2013-09-27
| | | | | | | | | | | | | | | | This is a patch to add capability to llvm-objdump to dump COFF Import Table entries, so that we can write tests for LLD checking Import Table contents. llvm-objdump did not print anything but just file name if the format is COFF and -private-headers option is given. This is a patch adds capability for dumping DLL Import Table, which is specific to the COFF format. In this patch I defined a new iterator to iterate over import table entries. Also added a few functions to COFFObjectFile.cpp to access fields of the entry. Differential Revision: http://llvm-reviews.chandlerc.com/D1719 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191472 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic YAML MC CFG testcase.Ahmed Bougacha2013-08-21
| | | | | | Drive-by llvm-objdump cleanup (don't hardcode ToolName). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188904 91177308-0d34-0410-b5e6-96231b3b80d8
* MC CFG: Add YAML MCModule representation to enable MC CFG testing.Ahmed Bougacha2013-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like yaml ObjectFiles, this will be very useful for testing the MC CFG implementation (mostly MCObjectDisassembler), by matching the output with YAML, and for potential users of the MC CFG, by using it as an input. There isn't much to the actual format, it is just a serialization of the MCModule class. Of note: - Basic block references (pred/succ, ..) are represented by the BB's start address. - Just as in the MC CFG, instructions are MCInsts with a size. - Operands have a prefix representing the type (only register and immediate supported here). - Instruction opcodes are represented by their names; enum values aren't stable, enum names mostly are: usually, a change to a name would need lots of changes in the backend anyway. Same with registers. All in all, an example is better than 1000 words, here goes: A simple binary: Disassembly of section __TEXT,__text: _main: 100000f9c: 48 8b 46 08 movq 8(%rsi), %rax 100000fa0: 0f be 00 movsbl (%rax), %eax 100000fa3: 3b 04 25 48 00 00 00 cmpl 72, %eax 100000faa: 0f 8c 07 00 00 00 jl 7 <.Lend> 100000fb0: 2b 04 25 48 00 00 00 subl 72, %eax .Lend: 100000fb7: c3 ret And the (pretty verbose) generated YAML: --- Atoms: - StartAddress: 0x0000000100000F9C Size: 20 Type: Text Content: - Inst: MOV64rm Size: 4 Ops: [ RRAX, RRSI, I1, R, I8, R ] - Inst: MOVSX32rm8 Size: 3 Ops: [ REAX, RRAX, I1, R, I0, R ] - Inst: CMP32rm Size: 7 Ops: [ REAX, R, I1, R, I72, R ] - Inst: JL_4 Size: 6 Ops: [ I7 ] - StartAddress: 0x0000000100000FB0 Size: 7 Type: Text Content: - Inst: SUB32rm Size: 7 Ops: [ REAX, REAX, R, I1, R, I72, R ] - StartAddress: 0x0000000100000FB7 Size: 1 Type: Text Content: - Inst: RET Size: 1 Ops: [ ] Functions: - Name: __text BasicBlocks: - Address: 0x0000000100000F9C Preds: [ ] Succs: [ 0x0000000100000FB7, 0x0000000100000FB0 ] <snip> ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188890 91177308-0d34-0410-b5e6-96231b3b80d8
* Use pointers to the MCAsmInfo and MCRegInfo.Bill Wendling2013-06-18
| | | | | | | | | | Someone may want to do something crazy, like replace these objects if they change or something. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184175 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-objdump.cpp: Appease MSC16 x64. utostr(n++) causes internal compiler error.NAKAMURA Takumi2013-05-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182722 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
* Add MCSymbolizer for symbolic/annotated disassembly.Ahmed Bougacha2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a basic first step towards symbolization of disassembled instructions. This used to be done using externally provided (C API) callbacks. This patch introduces: - the MCSymbolizer class, that mimics the same functions that were used in the X86 and ARM disassemblers to symbolize immediate operands and to annotate loads based off PC (for things like c string literals). - the MCExternalSymbolizer class, which implements the old C API. - the MCRelocationInfo class, which provides a way for targets to translate relocations (either object::RelocationRef, or disassembler C API VariantKinds) to MCExprs. - the MCObjectSymbolizer class, which does symbolization using what it finds in an object::ObjectFile. This makes simple symbolization (with no fancy relocation stuff) work for all object formats! - x86-64 Mach-O and ELF MCRelocationInfos. - A basic ARM Mach-O MCRelocationInfo, that provides just enough to support the C API VariantKinds. Most of what works in otool (the only user of the old symbolization API that I know of) for x86-64 symbolic disassembly (-tvV) works, namely: - symbol references: call _foo; jmp 15 <_foo+50> - relocations: call _foo-_bar; call _foo-4 - __cf?string: leaq 193(%rip), %rax ## literal pool for "hello" Stub support is the main missing part (because libObject doesn't know, among other things, about mach-o indirect symbols). As for the MCSymbolizer API, instead of relying on the disassemblers to call the tryAdding* methods, maybe this could be done automagically using InstrInfo? For instance, even though PC-relative LEAs are used to get the address of string literals in a typical Mach-O file, a MOV would be used in an ELF file. And right now, the explicit symbolization only recognizes PC-relative LEAs. InstrInfo should have already have most of what is needed to know what to symbolize, so this can definitely be improved. I'd also like to remove object::RelocationRef::getValueString (it seems only used by relocation printing in objdump), as simply printing the created MCExpr is definitely enough (and cleaner than string concats). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182625 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-objdump: Initialize MCDisassembler once instead of for each section.Ahmed Bougacha2013-05-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182054 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
* 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
* llvm-objdump: Don't print contents of BSS sections: it makes no sense and ↵Alexey Samsonov2013-04-16
| | | | | | crashes llvm-objdump on relocated objects with large bss git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179589 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
* 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
* 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
* Don't disassemble symbols with an unknown address or size.Eric Christopher2013-04-03
| | | | | | Patch by Nico Rieck! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178678 91177308-0d34-0410-b5e6-96231b3b80d8
* Add static cast to unsigned char whenever a character classification ↵Guy Benyei2013-02-12
| | | | | | function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
* [objdump,readobj] Document the purpose and goals of each tool.Michael J. Spencer2013-02-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174439 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded #include.Jakub Staszak2013-01-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173088 91177308-0d34-0410-b5e6-96231b3b80d8
* [llvm-objdump] Emit addresses with the correct number of leading 0's.Michael J. Spencer2013-01-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172130 91177308-0d34-0410-b5e6-96231b3b80d8
* [objdump] Add --private-headers, -p.Michael J. Spencer2013-01-06
| | | | | | This currently prints the ELF program headers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171649 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
* Add dump of Win64 EH unwind data.Michael J. Spencer2012-12-05
| | | | | | | | | | The new command line option -unwind-info dumps the Win64 EH unwind data to the console. This is a nice feature if you need to debug generated EH data (e.g. from LLVM). Includes a test case. Initial patch by João Matos, extensions and rework by Kai Nacke. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169415 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
* Add the -no-show-raw-insn option to llvm-objdump, thus making it a bit moreEli Bendersky2012-11-20
| | | | | | | conformant to binutils objdump. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168393 91177308-0d34-0410-b5e6-96231b3b80d8
* Some of the instructions in the Mips instruction set are revisionJack Carter2012-08-28
| | | | | | | | | | | | | | delimited. llvm-mc -disassemble access these through the -mattr option. llvm-objdump -disassemble had no such way to set the attribute so some instructions were just not recognized for disassembly. This patch accepts llvm-mc mechanism for specifying the attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162781 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up a bit.Jim Grosbach2012-08-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161430 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix it so llvm-objdump -arch does accept x86 and x86-64 as valid arch names.Kevin Enderby2012-05-08
| | | | | | | PR12731. Patch by Meador Inge! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156444 91177308-0d34-0410-b5e6-96231b3b80d8
* PR12729: Change 'llvm-objdump' to display the available targets.Pete Cooper2012-05-03
| | | | | | | Patch by Meador Inge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156128 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
* Include cctype for std::isprint.Benjamin Kramer2012-03-23
| | | | | | This should unbreak the msvc build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153329 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix uses of the C99 PRI format macros not to conflict with C++11 UDLs.Benjamin Kramer2012-03-10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152474 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
* [Object] Add symbol attribute flags: ST_ThreadLocal, ST_Common, and ↵David Meyer2012-02-29
| | | | | | | | | | | ST_Undefined. Implement these completely for ELF. Rename ST_External to ST_Unknown, and slightly change its semantics. It now only indicates that the symbol's type is unknown, not that the symbol is undefined. (For that, use ST_Undefined). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151696 91177308-0d34-0410-b5e6-96231b3b80d8
* In the ObjectFile interface, replace isInternal(), isAbsolute(), isGlobal(), ↵David Meyer2012-02-28
| | | | | | and isWeak(), with a bitset of flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151670 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix llvm-objdump disassembly for interesting Mach-O binaries, e.g. any MacOSCameron Zwarich2012-02-03
| | | | | | | dylib. This regressed with r145408. I will try to make a test case and add it so that this doesn't happen again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149667 91177308-0d34-0410-b5e6-96231b3b80d8
* Unweaken vtables as per ↵David Blaikie2011-12-20
| | | | | | http://llvm.org/docs/CodingStandards.html#ll_virtual_anch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 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
* llvm-objdump: Ignore non-objects in archives.Michael J. Spencer2011-11-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144755 91177308-0d34-0410-b5e6-96231b3b80d8
* uint64 formatted output: replaced %llx with PRIx64 macro.Stepan Dyatkovskiy2011-10-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143191 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r143149, stubbing out symbolic disassembly support. The symbolic ↵Owen Anderson2011-10-27
| | | | | | disassembly support is too MC-engrained to be useful in llvm-objdump. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143152 91177308-0d34-0410-b5e6-96231b3b80d8
* Stub out support for symbol disassembly in llvm-objdump.Owen Anderson2011-10-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143149 91177308-0d34-0410-b5e6-96231b3b80d8
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