similar to: [Dwarf] Register a local variable in DIBuilder and locate it later with a DwarfContext

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 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

"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

At least for generating DWARF the scope of of a composite type member should be irrelevant since it will always be nested inside its parent. -- adrian > On Feb 6, 2019, at 10:24 AM, David Blaikie <dblaikie at gmail.com> wrote: > > A good rough rule of thumb here is "what would/does Clang do?" & it looks (to me, on a very cursory glance) like Clang mostly passes the

Hi, What could be wrong or missing in the debug info (using DIBuilder) so that a parameter is displayed well in the "Locals" window but "not found" when typing it in the "Watch" window (and not displayed in the Auto) ? Thanks ! -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I'm trying to use DIBuilder to build my debug info and export it into a PDB, but I don't understand the way some DIBuilder method work. My question might have a straightforward answer but I don't see it ... (and I can't find any example code using these methods anywhere). Indeed createClassType takes an "Elements" argument, and createMemberType takes a

Hi, I'm using IR and MCJIT to compile a script language. I debug it with on the fly generated .pdb files. During debugging, almost each time I step into a function, I loose information about calling function inside the visual studio callstack view or I have a bunch of pure addresses in the callstack in between the current function and the calling function, for example :

I've always just hacked support for this in to the various JITs (for JuliaLang, in our debuginfo.cpp file), by setting the no-frame-pointer-optim flag in the IR, then creating and populating a dummy unwind description object in the .text section, and registering that dynamically. Some day I hope to actually just register the .pdata/.xdata sections with the unwinder. PDBs are a bit different

Ok I understand more what you meant. In fact I don’t care about the pdb size, at least as a first step, so it won’t be a problem for me to have duplicated symbols. Concerning TypeIndices my plan if possible is not to generate a pdb for my jit and merge it, but instead directly extract debug info from a DwarfContext just after llvm::object::ObjectFile is emitted by the JIT engine and complete the

On 24 February 2011 21:34, Jason Kim <jasonwkim at google.com> wrote: > On Thu, Feb 24, 2011 at 1:29 PM, Devang Patel <dpatel at apple.com> wrote: It simplified a bit type construction but the overall code did not reduce that much. It's still very similar to the previous style but had a few differences in the IR output. We had LIT tests that checked the IR and Dwarf and GDB

On Feb 25, 2011, at 5:23 AM, Renato Golin wrote: > On 24 February 2011 21:34, Jason Kim <jasonwkim at google.com> wrote: >> On Thu, Feb 24, 2011 at 1:29 PM, Devang Patel <dpatel at apple.com> wrote: > > It simplified a bit type construction but the overall code did not > reduce that much. The old interface expected FEs to keep track of everything, where as new

That’s a good question, by default when emitting the object file I choose COFF but it embeds dwarf and not codeview in the end.. there probably is a way to do it or at least it must be implemented if not yet.. Lets imagine I manage to do that.. when you say there is nothing to do, I still must have a PDBFileBuilder to copy the codeview data inside the EXE PDB right ? I cannot insert them easily in

Hi everybody. I'm trying to use DIBuilder to emit debug information, but in the generated metadata, it appears that references to the compilation unit are being left null. The llvm.dbg.sp node also fails to get generated. Other than these missing pieces, the metadata looks otherwise correct. I am calling DIBuilder::finalize. When I try to inspect variables in GDB, it replies: (gdb) print x

Sometime about two months ago, something changed in LLVM that broke my frontend's ability to generate debug info. This was around the time that the requirement to call DIBuilder::finalize() was added (and yes, I am calling it.) Specifically, what I am seeing is an assertion failure in llc because it can't find the compile unit for a subroutine. I took a look at the code in DIBuilder.cpp,

On Oct 23, 2011, at 12:03 AM, Talin wrote: > Just a follow up on this - I am still having problems, I never did figure out a solution. (I've been running with debug off for the last month so that I could get work done.) > > Here's what I am seeing: I am definitely calling DIBuilder::finalize(). I even put a debug print statement right after it, so that I could be sure that the

On Mon, Oct 24, 2011 at 9:17 AM, Devang Patel <dpatel at apple.com> wrote: > > On Oct 23, 2011, at 12:03 AM, Talin wrote: > > Just a follow up on this - I am still having problems, I never did figure > out a solution. (I've been running with debug off for the last month so that > I could get work done.) > > Here's what I am seeing: I am definitely calling

Ok I see.. what do you mean by “making sure to de-duplicate records as necessary” ? Le jeu. 17 janv. 2019 à 19:09, Zachary Turner <zturner at google.com> a écrit : > It's possible in theory to support incremental updates to a PDB (the file > format is designed specifically with that in mind). But this functionality > was never added to the PDB library since lld doesn't

On Oct 27, 2011, at 10:39 PM, Talin wrote: > On Mon, Oct 24, 2011 at 9:17 AM, Devang Patel <dpatel at apple.com> wrote: > > On Oct 23, 2011, at 12:03 AM, Talin wrote: > >> Just a follow up on this - I am still having problems, I never did figure out a solution. (I've been running with debug off for the last month so that I could get work done.) >> >>

Adding tags on subject line From: Chirag Patel Sent: 22 August 2018 11:20 To: llvm-dev at lists.llvm.org Subject: DIBuilder missing interface to generate DWARF info for packed_decimal basic type. Hello, I am working on a llvm based compiler frontend in which, I am using the packed_decimal type encoding. During using the llvm DIBuilder, I found out that the interface to create BasicType with

Just a follow up on this - I am still having problems, I never did figure out a solution. (I've been running with debug off for the last month so that I could get work done.) Here's what I am seeing: I am definitely calling DIBuilder::finalize(). I even put a debug print statement right after it, so that I could be sure that the code was being executed. I also insured that it was getting