similar to: [RFC] Upstream ObjCMetadata Reader Library

Hi Rafael, > The main thing I like about the diagnostic system is that it lets us > differentiate two related but independent concepts: > > * Giving the human using the program diagnostics about what went wrong. > * Propagating an error to the caller so that the upper library layer > can handle it or pass it up the stack. I don't think these are really independent. Whether

> > I don't think these are really independent. Whether or not you need to emit > > a diagnostic depends on whether a caller can handle the corresponding error, > > which isn't something you know at the point where the error is raised. > But you do in the diag handler. For example, if you are trying to open > multiple files, some of which are bitcode, you know to

Hi everyone, In llvm 4.0 the MCJIT::getFunctionAddress function return 0 (a null address) when the symbol is not found : *uint64_t MCJIT::getSymbolAddress(const std::string &Name, bool CheckFunctionsOnly) { std::string MangledName; { raw_string_ostream MangledNameStream(MangledName); Mangler::getNameWithPrefix(MangledNameStream, Name, getDataLayout()); } return

Hey everyone! Recently there has been some progress on LLVM-based tools for manipulating MachO binaries: llvm-objcopy has been gaining a lot of important bits to support MachO (it's relatively close to the point where one can implement the strip-like functionality), llvm-lipo is functional and supports most of cctools' lipo options (https://llvm.org/docs/CommandGuide/llvm-lipo.html). There

Some background: A while back while working on code to read / write PDB files, I came up with Yet Another Stream Abstraction. Note that LLVM already has a few. Off the top of my head, theres: 1) `MemoryBuffer` and its associated class hierarchy 2) `raw_ostream` and it's associated classes. 3) `DataExtractor` which is used for reading from a StringRef. There's probably more, and

Hi, llvmdev I've tried to use llvm/Object/Archive.h to print the archive symbol table for standard Unix .a files by slightly extending a code in llvm-nm, and the code crashed with wild segfault. It looks like the implementation in lib/Object/Archive.cpp assumes completely different symbol table format from what I have (which I believe is SVR4/GNU variant). Which archive formats does libObject

With comdats parts of the file might never be read. There are also multiple levels of cache and while all the relocations of a file will fit in ram, it is probably still more efficient to validate them as they are read. But I think (typing on a phone) that relocations are another case where the best is to have a more specific api: the only way the relocation is invalid from the perspective of

Hi, I am begineer to llvm, implementing a main.cpp from https://github.com/davidar/lljvm/blob/master/backend/main.cpp A) : When I am declaring a command: * PassManager PM* * PM.add(new DataLayout td)* It shows error: > *error: missing template arguments before ‘PM’* * PassManager PM;* ^ >*main_test.cpp:48:2: error: ‘PM’ was not declared in this scope* *

Hi Mehdi, > If you subclass a diagnostic right now, isn’t the RTTI information available to the handler, which can then achieve the same dispatching / custom handling per type of diagnostic? > (I’m not advocating the diagnostic system, which I found less convenient to use than what you are proposing) I have to confess I haven't looked at the diagnostic classes closely. I'll take a

On Jul 4, 2013, at 10:22 PM, 罗勇刚(Yonggang Luo) wrote: > > 在 2013-7-4 下午8:53，"Charles Davis" <cdavis5x at gmail.com>写道： > > > > > > On Jul 4, 2013, at 1:43 AM, 罗勇刚(Yonggang Luo) wrote: > > > > > LLVM is a modularized software system, so I hope it's was modularized, > > > And ELF.h is definitely belongs to Object by

Hey Michael, I completely agree that setting the rpath properly the first time around is much preferred. But, changes to the binary, particularly during development is much quicker. Prebuilt libraries which are being repackaged is one use case that is missed. In the past, I’ve even used it to repair am incorrectly built library which was missing the library name. There are a few different

We're planning to contribute an LLVM version of Apple's libtool utility. To quote its man page, "Libtool with -static is intended to replace ar(5) and ranlib". In other words, libtool is the preferred tool to create archives for Apple platforms, and it also has good defaults for that platform (e.g. automatically creating a table of contents with the right format). It provides a

On Thu, Jul 4, 2013 at 10:21 PM, Charles Davis <cdavis5x at gmail.com> wrote: > > On Jul 4, 2013, at 10:22 PM, 罗勇刚(Yonggang Luo) wrote: > > > 在 2013-7-4 下午8:53，"Charles Davis" <cdavis5x at gmail.com>写道： > > > > > > On Jul 4, 2013, at 1:43 AM, 罗勇刚(Yonggang Luo) wrote: > > > > > LLVM is a modularized software system, so I hope

Hi Philip, I also tried that including file: #include "llvm/IR/LegacyPassManager.h" but error remain same. Please help. On Tue, Aug 14, 2018, 2:58 AM Philip Pfaffe <philip.pfaffe at gmail.com> wrote: > Hi Ratnesh, > > the PassManager used in that example has moved into the legacy namespace: > http://llvm.org/doxygen/classllvm_1_1legacy_1_1PassManager.html > >

Hi all, I'm trying to support llvm-cov for a new architecture and I have successfully built compiler-rt for my arch. Following steps shown in https://clang.llvm.org/docs/SourceBasedCodeCoverage.html , I encountered an error for the last step(step of llvm-cov show). The command line was (supposed my arch is XXXX) "llvm-cov show -arch=XXXX ./foo -instr-profile=foo.profdata" and the

On Thu, Mar 22, 2018 at 12:55 PM Reid Kleckner <rnk at google.com> wrote: > On Wed, Mar 21, 2018 at 11:31 AM David Blaikie <dblaikie at gmail.com> wrote: > >> I'm looking at fixing some layering violations in LLVM & came across a >> few in the CodeView handling, specifically: >> >> lib/MC/MCCodeView includes several llvm/DebugInfo/CodeView headers

Hello, I need a way to send some script in a div or a form field to the server, have the server read it, then return the updated script to the div or form field. I can do the div and form field and such, I just need someone to explain to me how to do this. Can this be done? Thank you very much. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are

Hi All, I've been thinking lately about how to improve LLVM's error model and error reporting. A lack of good error reporting in Orc and MCJIT has forced me to spend a lot of time investigating hard-to-debug errors that could easily have been identified if we provided richer error information to the client, rather than just aborting. Kevin Enderby has made similar observations about the

On Fri, May 29, 2015 at 4:06 PM, Alexey Samsonov <vonosmas at gmail.com> wrote: > Hi everyone, > > Having proper error handling in LLVM's Object parsing library is a nice > thing by itself, but it would additionally allow us to find bugs by fuzzing > (see r238451 that adds llvm-dwarfdump-fuzzer tool), for which the clean > input validation is essential. > > This

Hello, I'm working on LLILC (a jit for the CoreCLR built on ORC), in particular, on using LLILC as an ngen jit. I would like to have an ability to be notified of relocations that ObjectLinkingLayer is applying and to be able to tell the linking layer not to resolve certain relocations for external symbols (so that the client can do some custom resolutions later). The only way I found of