similar to: LLD COFF library: crashes when lld::coff::link is called twice

+Rui and Peter On Wed, Jul 25, 2018 at 8:34 AM, Andrew Kelley via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Here's a fix: > > --- a/lld/COFF/Driver.cpp > +++ b/lld/COFF/Driver.cpp > @@ -72,6 +72,9 @@ bool link(ArrayRef<const char *> Args, bool CanExitEarly, > raw_ostream &Diag) { > exitLld(errorCount() ? 1 : 0); > > freeArena(); > +

Correct, I am using libCOFF, libELF, and libMACHO all as a library. Ideally all cases would return and report an error and clean up memory, etc, instead of calling exit. However this is sufficient for my needs for now. It is ok for LLD to crash if I supply an invalid command line argument, I won't do that. On Thu, Aug 31, 2017 at 5:47 PM, Rui Ueyama <ruiu at google.com> wrote: >

I think you want to call freeArena() before returning from lld::coff::link. On Sun, Oct 15, 2017 at 6:57 PM, Andrew Kelley via llvm-dev < llvm-dev at lists.llvm.org> wrote: > I believe this line is the culprit: > > COFF/Driver.cpp:102: > make<std::unique_ptr<MemoryBuffer>>(std::move(MB)); // take ownership > > Patch forthcoming. > > > On Sun, Oct

I encountered a segfault when using lld to cross-compile for Windows (+MinGW) from Linux. The problem happens with objects built by gcc. The problem is that ObjFile::CreateRegular considers a PendingComdat to be valid (and later causes an illegal pointer dereference). The following patch fixes the crash: diff --git a/COFF/InputFiles.cpp b/COFF/InputFiles.cpp index 9e2345b0a..f47d612df 100644

Can you upload a reproducer? You can create it using the /linkrepro flag. Peter On Thu, Jun 7, 2018 at 2:50 PM, Reid Kleckner via llvm-dev < llvm-dev at lists.llvm.org> wrote: > GCC does comdats completely differently from the spec. Since you contacted > me about this off of the mailing list, I started investigating what they > do, and it is completely different. It's

Hi LLVM developers, As PR35281 mentioned: $ llvm-objcopy -O binary llvm-cortex-m7.elf llvm-cortex-m7.bin llvm-objcopy: 'llvm-cortex-m7.elf': The file was not recognized as a valid object file. if (ELFObjectFile<ELF64LE> *o = dyn_cast<ELFObjectFile<ELF64LE>>(&Binary)) https://github.com/llvm-mirror/llvm/blob/master/tools/llvm-objcopy/llvm-objcopy.cpp#L200

Hi everyone, I’m currently playing with the clang driver and I encounter a strange bug. It occurs when I used the getSize function from the SymbolRef class. On iOS, the number returned is not always correct (some function have the right size). Sadly, This is my code (at the end of the main function into driver.cpp) : #### ErrorOr<OwningBinary<Binary>> BinaryOrErr =

Hi Paul, How can i make this call to intrinsic from the c++ code ? I'm not working with the IR language, but directly in C++ with IRBuilder::CreateAlloca. My goal is that one : - Generate machine code with an instance of the class 'IRBuilder' - Emit 'ObjFile' class instance with MCJIT - Create a DwarfContext instance directly from the emitted ObjFile object

Hi, all: I want to check small files' property(such as date, path, and so on) frequently. The files are stored in netwrok driver and their sizes vary from 2KB to 5KB. I found that Windows 2K outperform Linux/Samba very much after I campared the bench results. I am very confused about it and who can explain it? The computers' configurations are as follows: 1. PC Client It

"IR" often refers to the general concept/semantics, not only the textual format in .ll files (there are 3 main forms - bitcode, textual IR, and the in-memory representation (llvm::Module, etc - constructed using IRBuilder)). A great place to start is to look at what Clang does to produce debug info - it uses IRBuilder, for instance. So you could look at how Clang uses the IRBuilder when

Binding the alloca to the debug-info metadata is not automatic. You need to emit an intrinsic function call to llvm.dbg.declare to bind the two together. If you are simply trying to emit DWARF for your program, the rest of the processing should already be in place for that. If you are trying to do something else, you would need to describe that so we understand what you need. --paulr From:

Hi Mahesh, On 23 April 2018 at 10:51, Mahesh Attarde via llvm-dev <llvm-dev at lists.llvm.org> wrote: > movq .str at GOTPCREL(%rip),%rdi > movq .str.1 at GOTPCREL(%rip),%rsi That's quite strange. You wouldn't normally expect to access a constant string via the GOT. It looks like LLVM has decided to put the symbols in an odd section, so it'd be a good idea to make sure

Hi, First, considering I'm using an IRBuilder and a DIBuilder to build my program, how can I automatically bind the CreateAlloca with my named local variable inside the DIBuilder ? Is it automatic with the Twine name of CreateAlloca ? And/Or should I use DIBuilder::createAutoVariable and how ? Then, I'm wondering how to locate back my local variable in memory (register or stack) once i

Hi I am executing following steps to convert assembly to object code. llc -march=x86-64 -filetype=asm input.ll -o input.s g++ -g -c -o input.s --input.o inshort ll --> llc --> .s -->g++ -->obj original source was something like this { printf(" **** %s ****",str); } input.s turn out to be movq .str at GOTPCREL(%rip),%rdi movq .str.1 at GOTPCREL(%rip),%rsi xorl

On Wed, Jul 8, 2009 at 12:16 PM, Eric Christopher<echristo at apple.com> wrote: >> For reference, here is the corresponding patch against GDB: >> http://web.mit.edu/rnk/www/jit-patch.diff >> > > This appears to be missing some hunks... Ah, crap, there's a gdb/jit.[ch] but I don't know how to get cvs diff to include them. 'cvs add' wants write access

I'm copying some LLD code into my codebase like this: // workaround for LLD not exposing ability to convert .def to .lib #include <set> namespace lld { namespace coff { class SymbolBody; class StringChunk; struct Symbol; struct Export { StringRef Name; // N in /export:N or /export:E=N StringRef ExtName; // E in /export:E=N SymbolBody *Sym = nullptr; uint16_t Ordinal

Zig tests using Debug build of 5.0.1rc2 hit this bug: https://bugs.llvm.org/show_bug.cgi?id=34452 I suppose the fix has not been backported to 5.0.1. So I created a Release build of 5.0.1rc2 and all zig tests pass, with the following patches: * Patches to LLD: commit a206ef34bbbc46017e471063a4a1832c1ddafb0a Author: Andrew Kelley <superjoe30 at gmail.com> Date: Fri Dec 1 12:11:55 2017

Hello, I have just updated my svn copy of the llvm/clang repositories after quite a long time of inactivity, and found it not compiling on Windows with Visual Studio 2008. The incriminated file is: llvm/lib/MC/MCModule.cpp Where several calls to "std::lower_bound" are made, like: atom_iterator I = std::lower_bound(atom_begin(), atom_end(),

On Wed, Jun 14, 2017 at 7:37 PM, Rui Ueyama <ruiu at google.com> wrote: > On Wed, Jun 14, 2017 at 4:24 PM, Andrew Kelley via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> I'm copying some LLD code into my codebase like this: >> >> // workaround for LLD not exposing ability to convert .def to .lib >> >> #include <set> >>

I saw this change come in yesterday: commit 572ad839e2f66eaa82ffc71b1061eb3d06a4d126 Author: Saleem Abdulrasool <compnerd at compnerd.org> Date: Thu Jun 15 20:39:58 2017 +0000 COFF: add support for lib mode usage When link is invoked with `/def:` and no input files, it behaves as if `lib.exe` was invoked. Emulate this behaviour, generating the import library from the