similar to: [LLVMdev] clang: call extern function using JIT

On Aug 17, 2010, at 1:56 PM, gafferuk wrote: > > hi, im creating a music application(image below). > > At the moment im using tcc compiler but im moving across to clang because of > the improved compiler warnings. > Can anyone please explain and show code so I can use clang's JIT to call > functions in my application? You'll probably want to take a look at the

gafferuk <gafferuk at gmail.com> writes: > Im confused. The function i wish to call is a return type of int. > Im calling it with int dd = yipee(1); > > What's wrong? Declare the function: int yipee(int); int main() { int dd = yipee(1); return 0; } If that still crashes, put a breakpoint on `yipee' and see if the execution gets there, if the argument is

I tried what you said, now I get: LLVM ERROR: Program used external function 'yipee' which could not be resolved! Stack dump: 0. Running pass 'X86 Machine Code Emitter' on function '@main' did not even get as far as a breakpoint. Óscar Fuentes wrote: > > gafferuk <gafferuk at gmail.com> writes: > >> Im confused. The function i wish to call is

Heres my full code listing, im totally stuck. // Whistle.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include "clang/CodeGen/CodeGenAction.h" #include "clang/Driver/Compilation.h" #include "clang/Driver/Driver.h" #include "clang/Driver/Tool.h" #include

Can someone pease tell me what I am doing wrong? Im trying to register an external function with the JIT, so can call functions in my music application. Here my function int Execute(llvm::Module *Mod, char * const *envp) { llvm::InitializeNativeTarget(); std::string Error; llvm::OwningPtr<llvm::ExecutionEngine> EE( llvm::ExecutionEngine::createJIT(Mod, &Error)); if (!EE) {

gafferuk <gafferuk at gmail.com> writes: > Can someone pease tell me what I am doing wrong? It is hard to say because you don't say what the problem is, but let's try. > Im trying to register an external function with the JIT, so can call > functions in my music > > application. > > Here my function > > int Execute(llvm::Module *Mod, char * const *envp)

Im trying to call fuctions in my music application from c code which will be used by the JIT. Here my function, i have made no other changes to the clang interpreter example. Can you see anything else I have to add to either the fuction below or to the c code to be JIT at the bottom? // function I wish to call. int yipee(int aVar) { aVar = 5; } int Execute(llvm::Module *Mod, char * const

im using code from the clang interpreter example. what code do I need to add so I can call functions in my main application? Thanks. Paul. -- View this message in context: http://old.nabble.com/clang%3A-call-application-function-tp29439756p29439756.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

ok, i have changed functionType code to: llvm::FunctionType* ft = llvm::FunctionType::get(llvm::Type::getInt32Ty(llvm::getGlobalContext()), std::vector<const llvm::Type*>(1, llvm::Type::getInt32Ty(llvm::getGlobalContext())), false); when I run my app the compiler says: E:\Projects\Whistle\Whistle\Release>Whistle file.c file.c(3) : warning: implicit declaration of function

On Tue, Oct 6, 2009 at 5:49 PM, Reid Kleckner <rnk at mit.edu> wrote: >> Also, the null pointer is coming from a call to JCE->allocateSpace(). >> This is a virtual function; I'm trying to discover what subclass it >> is. > > So, there's JITEmitter::allocateSpace which overrides > JITCodeEmitter::allocateSpace(), but *most* of the time it just calls >

> > It just occurred to me... in the case where it's failing, the > ExecutionEngine was trying to JIT a global, and it had never JITted > any functions!  I'll work up a small test case, but I think it's > relevant since the thing is trying to allocate the globals with the > functions. > That was it! The following small test program crashes in getPointerToGlobal:

> when I run my app the compiler says: > E:\Projects\Whistle\Whistle\Release>Whistle file.c > file.c(3) :  warning: implicit declaration of function 'yipee' is invalid in > C99 > >      [-Wimplicit-function-declaration] >    int dd = yipee(1); >             ^ This way you're creating a call to variadic function. It's of different type compared to function

Im confused. The function i wish to call is a return type of int. Im calling it with int dd = yipee(1); What's wrong? Anton Korobeynikov-2 wrote: > >> when I run my app the compiler says: >> E:\Projects\Whistle\Whistle\Release>Whistle file.c >> file.c(3) :  warning: implicit declaration of function 'yipee' is invalid >> in >> C99 >>

On Wed, 2015-08-05 at 10:02 -0400, Ramkumar Ramachandra wrote: > > - at 5 = internal global [10 x i8] c"\22\D0\12\F4!\00\15\F9\EC\E1" > - at 6 = internal global [10 x i8] c"\D0\19\FB+\FD\F8#\03\E2\11" > + at 5 = internal global [10 x i8] c"\22Ð\12ô!\00\15ùìá" > + at 6 = internal global [10 x i8] c"Ð\19û+ýø#\03â\11" > > The diff

> 6. When ExecutionEngine::create was called with parameter > "GVsWithCode" set to its default value of true, I got a segfault when > trying to get a pointer to one of my globals.  JIT::getMemoryForGV was > returning NULL in that case.  Explicitly passing false for > "GVsWithCode" cleared it up. That's no good. Could you send me a stack trace and explain

I am trying to get a handle on IR builder, at least some basics. I ran through a tutorial here: Create a working compiler with the LLVM framework, Part 1 <http://www.ibm.com/developerworks/library/os-createcompilerllvm1/>, and it worked well enough. I have some simple code that creates a hello world IR. I am trying to now bring in some concepts from the Kaleidoscope tutorial, namely

Thank you Chris. I am using llvm-3.4.2. I am facing the same issue when using clang++ as well. $ clang++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS `llvm-config --cxxflags --ldflags --libs` -S -emit-llvm gives me errors $clang++ try.cpp -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -S -emit-llvm $ lli try.s gives me Program used external function

Hi, I created a global char array, char buffer[1024]. I want to call a function to append the string information to the buffer repeatedly. For example, I need to implement the following code, where length, a, b, c, are global variables. int length = 0; length += sprintf(buffer+length, "str%d", a); length += sprintf(buffer+length, "str%c", b); length += sprintf(buffer+length,

Ive tried the following code, but does not work. What am I doing wrong? // function I would like to call using JIT extern "C" void yipee(double val) { fprintf(stderr, "yipee!"); } std::vector<const llvm::Type*> Double(1, llvm::Type::getDoubleTy(llvm::getGlobalContext())); llvm::FunctionType *FT =

Hi, I want to use a function defined in c(++)-code from code generated by llvm. For this I use ExecutionEngine.addGlobalMapping(). I started with the JIT execution engine and everything worked, then I switched to the interpreter engine and it stopped working, but only if compiled on a Linux system. More precisely it works if I use llvm 3.8.1 + gcc (Linux) + JIT llvm 3.8.0 + mingw-gcc