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* [llvm-objcopy] [COFF] Add support for removing sectionsMartin Storsjo2019-01-196-19/+181
| | | | | | Differential Revision: https://reviews.llvm.org/D56683 llvm-svn: 351660
* [llvm-objcopy] [COFF] Remove a superfluous namespace qualification. NFC.Martin Storsjo2019-01-191-1/+1
| | | | llvm-svn: 351658
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-19415-1660/+1257
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
* Install new LLVM license structure and new developer policy.Chandler Carruth2019-01-191-16/+238
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This installs the new developer policy and moves all of the license files across all LLVM projects in the monorepo to the new license structure. The remaining projects will be moved independently. Note that I've left odd formatting and other idiosyncracies of the legacy license structure text alone to make the diff easier to read. Critically, note that we do not in any case *remove* the old license notice or terms, as that remains necessary until we finish the relicensing process. I've updated a few license files that refer to the LLVM license to instead simply refer generically to whatever license the LLVM project is under, basically trying to minimize confusion. This is really the culmination of so many people. Chris led the community discussions, drafted the policy update and organized the multi-year string of meeting between lawyers across the community to figure out the strategy. Numerous lawyers at companies in the community spent their time figuring out initial answers, and then the Foundation's lawyer Heather Meeker has done *so* much to help refine and get us ready here. I could keep going on, but I just want to make sure everyone realizes what a huge community effort this has been from the begining. Differential Revision: https://reviews.llvm.org/D56897 llvm-svn: 351631
* [elfabi] Add support for reading DT_NEEDED from binariesArmando Montanez2019-01-181-1/+22
| | | | | | | | | This patch gives elfabi the ability to read DT_NEEDED entries from ELF binaries to populate NeededLibs in TextAPI's ELFStub. Differential Revision: https://reviews.llvm.org/D55852 llvm-svn: 351592
* Revert r351529 "[llvm-objdump][NFC] Improve readability."Clement Courbet2019-01-181-34/+29
| | | | | | msan errors in ELF/strip-all.s. llvm-svn: 351556
* Reland r351529 "[llvm-objdump][NFC] Improve readability."Clement Courbet2019-01-181-29/+34
| | | | | | | | `SectionSymbol*` is cast from `void*` to `std::tuple<uint64_t, StringRef, uint8_t>` in AMDGPUSymbolizer, so it has to *be* one, not *act like* one. llvm-svn: 351553
* [llvm-objdump] - Dump the archive headers when -all-headers is specified.George Rimar2019-01-181-2/+2
| | | | | | | | | | | When -all-headers is given it is supposed to dump all headers, but now it skips the archive headers for no reason. The patch fixes that. Differential revision: https://reviews.llvm.org/D56780 llvm-svn: 351547
* [llvm-objdump] - Move getRelocationValueString and dependenices out of the ↵George Rimar2019-01-186-433/+459
| | | | | | | | | | | | | | | | | | | | llvm-objdump.cpp getRelocationValueString is a dispatcher function that calls the corresponding ELF/COFF/Wasm/MachO implementations that currently live in the llvm-objdump.cpp file. These implementations better be moved to ELFDump.cpp, COFFDump.cpp and other corresponding files, to move platform specific implementation out from the common logic. The patch does that. Also, I had to move ToolSectionFilter helper and SectionFilterIterator, SectionFilter to a header to make them available across the objdump code. Differential revision: https://reviews.llvm.org/D56842 llvm-svn: 351545
* [llvm-objdump] - Show aliases in -help.George Rimar2019-01-181-34/+35
| | | | | | | | | | | | | | | Currently llvm-objdump is inconsistent. When -help is specified it shows no aliases except two. Aliases are shown with -help-hidden though. GNU objdump also prints them by default. This patch does a change to always show all aliases when -help is given. Differential revision: https://reviews.llvm.org/D56853 llvm-svn: 351542
* Revert r351529 "[llvm-objdump][NFC] Improve readability."Clement Courbet2019-01-181-37/+28
| | | | | | Breaks labels-branch.s llvm-svn: 351534
* [llvm-objdump][NFC] Improve readability.Clement Courbet2019-01-181-28/+37
| | | | | | | | | | | | | | Summary: Introduce a `struct SectionSymbol` instead of `tuple<uint64_t, StringRef, uint8>`. Reviewers: jhenderson, davide Subscribers: rupprecht, llvm-commits Differential Revision: https://reviews.llvm.org/D56858 llvm-svn: 351529
* [WebAssembly] Fixed objdump not parsing function headers.Wouter van Oortmerssen2019-01-171-0/+6
| | | | | | | | | | | | | | | | | | | | | | | Summary: objdump was interpreting the function header containing the locals declaration as instructions. To parse these without injecting target specific code in objdump, MCDisassembler::onSymbolStart was added to be implemented by the WebAssembly implemention. WasmObjectFile now returns a code offset for the "address" of a symbol, rather than the index. This is also more in-line with what other targets do. Also ensured that the AsmParser correctly puts each function in its own segment to enable this test case. Reviewers: sbc100, dschuff Subscribers: jgravelle-google, aheejin, sunfish, rupprecht, llvm-commits Differential Revision: https://reviews.llvm.org/D56684 llvm-svn: 351460
* Add a missing dependency to fix build.Rui Ueyama2019-01-171-0/+1
| | | | llvm-svn: 351458
* Revert "[ThinLTO] Add summary entries for index-based WPD"Teresa Johnson2019-01-171-2/+0
| | | | | | | | Mistaken commit of something still under review! This reverts commit r351453. llvm-svn: 351455
* [ThinLTO] Add summary entries for index-based WPDTeresa Johnson2019-01-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: If LTOUnit splitting is disabled, the module summary analysis computes the summary information necessary to perform single implementation devirtualization during the thin link with the index and no IR. The information collected from the regular LTO IR in the current hybrid WPD algorithm is summarized, including: 1) For vtable definitions, record the function pointers and their offset within the vtable initializer (subsumes the information collected from IR by tryFindVirtualCallTargets). 2) A record for each type metadata summarizing the vtable definitions decorated with that metadata (subsumes the TypeIdentiferMap collected from IR). Also added are the necessary bitcode records, and the corresponding assembly support. The index-based WPD will be sent as a follow-on. Depends on D53890. Reviewers: pcc Subscribers: mehdi_amini, Prazek, inglorion, eraman, steven_wu, dexonsmith, arphaman, llvm-commits Differential Revision: https://reviews.llvm.org/D54815 llvm-svn: 351453
* [llvm-readobj][ELF]Add demangling supportJames Henderson2019-01-173-24/+35
| | | | | | | | | | | | | | | | | | | | | This change adds demangling support to the ELF side of llvm-readobj, under the switch --demangle/-C. The following places are demangled: symbol table dumps (static and dynamic), relocation dumps (static and dynamic), addrsig dumps, call graph profile dumps, and group section signature symbols. Although GNU readelf doesn't support demangling, it is still a useful feature to have, and brings it on a par with llvm-objdump's capabilities. This fixes https://bugs.llvm.org/show_bug.cgi?id=40054. Reviewed by: grimar, rupprecht Differential Revision: https://reviews.llvm.org/D56791 llvm-svn: 351450
* Move demangling function from llvm-objdump to Demangle libraryJames Henderson2019-01-172-18/+3
| | | | | | | | | | | | | | | | This allows it to be used in an upcoming llvm-readobj change. A small change in internal behaviour of the function is to always call the microsoftDemangle function if the string does not have an itanium encoding prefix, rather than only if it starts with '?'. This is harmless because the microsoftDemangle function does the same check already. Reviewed by: grimar, erik.pilkington Differential Revision: https://reviews.llvm.org/D56721 llvm-svn: 351448
* [llvm-objdump] - Fix comment. NFC.George Rimar2019-01-171-1/+1
| | | | | | Forgot to address this one. llvm-svn: 351418
* [llvm-objdump] - Simplify the getRelocationValueString. NFCI.George Rimar2019-01-171-38/+22
| | | | | | | | | | This refactors the getRelocationValueString method. It is a bit overcomplicated and it is possible to reduce it without losing the functionality it seems. Differential revision: https://reviews.llvm.org/D56778 llvm-svn: 351417
* [WebAssembly] Parse llvm.ident into producers sectionThomas Lively2019-01-172-0/+50
| | | | llvm-svn: 351413
* Revert "[WebAssembly] Parse llvm.ident into producers section"Thomas Lively2019-01-172-50/+0
| | | | | | This reverts commit eccdbba3a02a33e13b5262e92200a33e2ead873d. llvm-svn: 351410
* [WebAssembly] Parse llvm.ident into producers sectionThomas Lively2019-01-162-0/+50
| | | | | | | | | | | | | | Summary: Everything before the word "version" is the tool, and everything after the word "version" is the version. Reviewers: aheejin, dschuff Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D56742 llvm-svn: 351399
* [PGO] Make pgo related options in opt more consistent.Wei Mi2019-01-163-13/+36
| | | | | | | | | | | | | | | Currently we have pgo options defined in PassManagerBuilder.cpp only for instrument pgo, but not for sample pgo. We also have pgo options defined in NewPMDriver.cpp in opt only for new pass manager and for all kinds of pgo. They have some inconsistency. To make the options more consistent and make tests writing easier, the patch let old pass manager to share the same pgo options with new pass manager in opt, and removes the options in PassManagerBuilder.cpp. Differential Revision: https://reviews.llvm.org/D56749 llvm-svn: 351392
* Fix most of LLVM's tests with LLVM_ENABLE_PIC=OFFNico Weber2019-01-161-1/+0
| | | | | | | | | | | | | | Lots of tests rely on llvm-lto being present, but LLVM_ENABLE_PIC=OFF currently disables building that executable. There's no reason for not building llvm-lto with LLVM_ENABLE_PIC=OFF so just build it. r191042 moved it into a "if (!WIN)" block at the time, and then 211852 made that "if(NOT CYGWIN AND LLVM_ENABLE_PIC)" -- but that's only needed for LTO (the ld64 plugin), not for the llvm-lto binary. Differential Revision: https://reviews.llvm.org/D56801 llvm-svn: 351374
* [elfabi] Add support for reading DT_SONAME from binariesArmando Montanez2019-01-161-3/+129
| | | | | | | | | | | | | | This change gives the llvm-elfabi tool the ability to read DT_SONAME from a binary ELF file into an ELFStub. Added: - DynamicEntries struct for storing dynamic entries that are relevant to elfabi. - terminatedSubstr() retrieves a null-terminated substring from a StringRef. - appendToError() appends a string to an error, allowing more specific error messages. Differential Revision: https://reviews.llvm.org/D55629 llvm-svn: 351361
* [llvm-readobj] Set correct offset when dumping hex section output.Sid Manning2019-01-161-1/+2
| | | | | | Differential Revision: https://reviews.llvm.org/D56369 llvm-svn: 351356
* [llvm-nm] Allow --size-sort to print symbols with only Symbol sizeSaurabh Badhwar2019-01-161-2/+1
| | | | | | | | | | | | | | | | | | | Summary: When llvm-nm is passed only the --size-sort option for an object file, there is no output generated. The commit modifies the behavior to print the symbols sorted and their size which is also inline with the output of the GNU nm tool. Signed-off-by: Saurabh Badhwar <sbsaurabhbadhwar9@gmail.com> Reviewers: enderby, rupprecht Reviewed By: rupprecht Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D56063 llvm-svn: 351347
* [Support] Remove error return value from one overload of fs::make_absolutePavel Labath2019-01-161-7/+2
| | | | | | | | | | | | | | | | | | | | | | Summary: The version of make_absolute which accepted a specific directory to use as the "base" for the computation could never fail, even though it returned a std::error_code. The reason for that seems to be historical -- the CWD flavour (which can fail due to failure to retrieve CWD) was there first, and the new version was implemented by extending that. This removes the error return value from the non-CWD overload and reimplements the CWD version on top of that. This enables us to remove some dead code where people were pessimistically trying to handle the errors returned from this function. Reviewers: zturner, sammccall Subscribers: hiraditya, kristina, llvm-commits Differential Revision: https://reviews.llvm.org/D56599 llvm-svn: 351317
* [llvm-rc] Support '--' for delimiting options from input pathsMartin Storsjo2019-01-161-1/+7
| | | | | | | | | | This allows avoiding conflicts between paths that begin with the same chars as some llvm-rc options (which can be used with either slashes or dashes). Differential Revision: https://reviews.llvm.org/D56743 llvm-svn: 351305
* [llvm-symbolizer] Add -C as a short alias to -demangleDmitry Venikov2019-01-161-0/+4
| | | | | | | | | | | | | | Summary: Provides -C as alias to -demangle. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40069. Reviewers: jhenderson, ruiu, rnk, fjricci Reviewed By: jhenderson, ruiu Subscribers: rupprecht, erik.pilkington, llvm-commits Differential Revision: https://reviews.llvm.org/D56591 llvm-svn: 351300
* [llvm-ar] Resubmit recursive thin archive test with fix for full path names ↵Jordan Rupprecht2019-01-151-5/+7
| | | | | | and better error messages llvm-svn: 351256
* llvm-objdump -m -D should disassemble all text segmentsMichael Trent2019-01-151-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: When running llvm-objdump with the -macho option objdump will by default disassemble only the __TEXT,__text section (or __TEXT_EXEC,__text when disassembling MH_KEXT_BUNDLE files). The -disassemble-all option is treated no diferently than -disassemble. This change upates llvm-objdump's MachO parsing code to disassemble all __text sections found in a file when -disassemble-all is specified. This is useful for disassembling files with more than one __text section, or when disassembling files whose __text section is not present in __TEXT. I added a lit test case that verifies "llvm-objdump -m -d" and "llvm-objdump -m -D" produce the expected results on a reference binary. I also updated the CommandGuide documentation for llvm-objdump.rst and verified it renders correctly as man and html. rdar://42899338 Reviewers: ab, pete, lhames Reviewed By: lhames Subscribers: rupprecht, llvm-commits Differential Revision: https://reviews.llvm.org/D56649 llvm-svn: 351238
* [llvm-readelf] Allow single-letter flags to be merged.Jordan Rupprecht2019-01-151-17/+32
| | | | | | | | | | | | | | | | | | | Summary: This patch adds support for merged arguments (e.g. -SW == -S -W) for llvm-readelf. No changes are intended for llvm-readobj. There are a few short flags (-sd, -sr, -st, -dt) that would conflict with grouped single letter flags, and having only some grouped flags might be confusing. So, allow merged flags for readelf compatibility, but force separate args for llvm-readobj. From what I can tell, these two-letter flags are only used with llvm-readobj, not llvm-readelf. This fixes PR40064. Reviewers: jhenderson, kristina, echristo, phosek Reviewed By: jhenderson Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D56629 llvm-svn: 351205
* [llvm-objcopy] Use SHT_NOTE for added note sections.Jordan Rupprecht2019-01-151-9/+13
| | | | | | | | | | | | | | | | | | | Summary: Fix llvm-objcopy to add .note sections as SHT_NOTEs. GNU objcopy overrides section flags for special sections. For `.note` sections (with the exception of `.note.GNU-stack`), SHT_NOTE is used. Many other sections are special cased by libbfd, but `.note` is the only special section I can seem to find being used with objcopy --add-section. See `.note` in context of the full list of special sections here: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=bfd/elf.c;h=eb3e1828e9c651678b95a1dcbc3b124783d1d2be;hb=HEAD#l2675 Reviewers: jhenderson, alexshap, jakehehrlich, espindola Reviewed By: jhenderson Subscribers: emaste, arichardson, llvm-commits Differential Revision: https://reviews.llvm.org/D56570 llvm-svn: 351204
* [llvm-obdump] - Fix the help lines for -stop-address and -z.George Rimar2019-01-151-4/+4
| | | | | | | It was broken by me by mistake in r350823 during addressing the review comment before committing (changed not the right text line). llvm-svn: 351192
* [llvm-objcopy] [COFF] Implement --strip-all[-gnu] for symbolsMartin Storsjo2019-01-152-2/+13
| | | | | | Differential Revision: https://reviews.llvm.org/D56481 llvm-svn: 351174
* [llvm-objdump] - Cleanup the code. NFCI.George Rimar2019-01-154-313/+285
| | | | | | | | | | | | | | | | | This is a cosmetic cleanup for the llvm-objdump code. This patch: * Renames things to match the official LLVM code style (lower case -> upper case). * Removes few obviously excessive variables. * Moves a few lines closer to the place of use, reorders the code a bit to simplify it, to avoid doing excessive returns and to avoid using 'else` after returns. I focused only on a llvm-objdump.h/llvm-objdump.cpp files. Few changes in the MachODump.cpp and COFFDump.cpp are a result of llvm-objdump.h modification. Differential revision: https://reviews.llvm.org/D56637 llvm-svn: 351171
* [llvm-ar] Flatten thin archives.Jordan Rupprecht2019-01-141-45/+45
| | | | | | | | | | | | | | | | | | | | | | Summary: Normal behavior for GNU ar is to flatten thin archives when adding them to another thin archive, i.e. add the members directly instead of nesting the archive. Some refactoring done as part of this patch to ease things: - Consolidate `addMember`/`addLibMember` methods - Rename `addMember` to `addChildMember` to make it more visibly different at the call site that an archive child is passed instead of a regular member - Pass in a separate vector and splice it back into position instead of passing a vector + optional Pos (which makes expanding libs tricky) This fixes PR37530 as raised by https://github.com/ClangBuiltLinux/linux/issues/279. Reviewers: mstorsjo, pcc, ruiu Reviewed By: mstorsjo Subscribers: llvm-commits, tpimh, nickdesaulniers Differential Revision: https://reviews.llvm.org/D56508 llvm-svn: 351120
* [llvm-objcopy] [COFF] Remove unreferenced undefined externals with ↵Martin Storsjo2019-01-141-3/+9
| | | | | | | | --strip-unneeded. Differential Revision: https://reviews.llvm.org/D56660 llvm-svn: 351099
* cmake: Don't install plugins used for examples or testsTom Stellard2019-01-141-1/+1
| | | | | | | | | | | | | | | | Summary: This patch drops install targets for LLVMHello.so, TestPlugin.so, and BugpointPasses.so. Reviewers: chandlerc, beanz, thakis, philip.pfaffe Reviewed By: chandlerc Subscribers: SquallATF, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D55965 llvm-svn: 351087
* [llvm-symbolizer] Add -addresses, -a as aliases for -print-addressDmitry Venikov2019-01-141-2/+10
| | | | | | | | | | | | | | Summary: Provides -addresses, -a as aliases for -print-address. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40067. Reviewers: jhenderson, ruiu, rnk, fjricci Reviewed By: jhenderson Subscribers: rupprecht, llvm-commits Differential Revision: https://reviews.llvm.org/D56635 llvm-svn: 351043
* Remove TypeBuilder.h, and fix the few locations using it.James Y Knight2019-01-131-16/+10
| | | | | | | | | | | | | | This shortcut mechanism for creating types was added 10 years ago, but has seen almost no uptake since then, neither internally nor in external projects. The very small number of characters saved by using it does not seem worth the mental overhead of an additional type-creation API, so, delete it. Differential Revision: https://reviews.llvm.org/D56573 llvm-svn: 351020
* [llvm-objdump] - Change the output for --all-headers.George Rimar2019-01-121-5/+5
| | | | | | | | | | | This is for https://bugs.llvm.org/show_bug.cgi?id=40008, it starts printing the file headers when --all-headers is given and do a minor cosmetic change. Differential revision: https://reviews.llvm.org/D56588 llvm-svn: 351006
* [llvm-objcopy] [COFF] Remove pointless Reader/Writer base classes. NFC.Martin Storsjo2019-01-124-24/+5
| | | | | | | | | These were copied as part of the original design from the ELF backend, but aren't necessary at the moment. Differential Revision: https://reviews.llvm.org/D56431 llvm-svn: 350996
* [LTO] Record whether LTOUnit splitting is enabled in indexTeresa Johnson2019-01-111-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Records in the module summary index whether the bitcode was compiled with the option necessary to enable splitting the LTO unit (e.g. -fsanitize=cfi, -fwhole-program-vtables, or -fsplit-lto-unit). The information is passed down to the ModuleSummaryIndex builder via a new module flag "EnableSplitLTOUnit", which is propagated onto a flag on the summary index. This is then used during the LTO link to check whether all linked summaries were built with the same value of this flag. If not, an error is issued when we detect a situation requiring whole program visibility of the class hierarchy. This is the case when both of the following conditions are met: 1) We are performing LowerTypeTests or Whole Program Devirtualization. 2) There are type tests or type checked loads in the code. Note I have also changed the ThinLTOBitcodeWriter to also gate the module splitting on the value of this flag. Reviewers: pcc Subscribers: ormris, mehdi_amini, Prazek, inglorion, eraman, steven_wu, dexonsmith, arphaman, dang, llvm-commits Differential Revision: https://reviews.llvm.org/D53890 llvm-svn: 350948
* [llvm-objcopy] [COFF] Implmement --strip-unneeded and -x/--discard-all for ↵Martin Storsjo2019-01-111-1/+12
| | | | | | | | symbols Differential Revision: https://reviews.llvm.org/D56480 llvm-svn: 350927
* [llvm-objcopy] [COFF] Fix writing object files without symbols/string tableMartin Storsjo2019-01-111-5/+4
| | | | | | | | | | Previously, this was broken - by setting PointerToSymbolTable to zero but still actually writing the string table length, the object file header was corrupted. Differential Revision: https://reviews.llvm.org/D56584 llvm-svn: 350926
* [llvm-symbolizer] Add -exe, -e as aliases to -objDmitry Venikov2019-01-111-0/+8
| | | | | | | | | | | | | | Summary: Provides -exe, -e as aliases to -obj. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40071 Reviewers: ruiu, rnk, fjricci, jhenderson Reviewed By: jhenderson Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D56580 llvm-svn: 350925
* [llvm-objcopy] [COFF] Fix warnings abuilt missing field initialization. NFC.Martin Storsjo2019-01-102-1/+4
| | | | llvm-svn: 350898
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