from rpython.jit.backend.llsupport.llmodel import AbstractLLCPU
from rpython.rtyper.lltypesystem import rffi, lltype
from rpython.rtyper.lltypesystem.rffi import str2constcharp
from rpython.translator.tool.cbuild import ExternalCompilationInfo

class LLVM_CPU(AbstractLLCPU):
    def __init__(self, rtyper, stats, opts=None, translate_support_code=False, gcdescr=None):
        AbstractLLCPU.__init__(self, rtyper, stats, opts, translate_support_code, gcdescr)

        self.initialise_api()
        if not self.InitializeNativeTarget(None):
            raise Exception



    def initialise_api(self):
        header_files = ["Core","ExecutionEngine","Target","Analysis","BitWriter","DataTypes","BitReader","Comdat","DebugInfo","Disassembler","DisassemblerTypes","Error","ErrorHandling","ExternC","IRReader","Initialization","LinkTimeOptimizer","Linker","Object","Orc","OrcBindings","Remarks","Support","TargetMachine","Types"]
        llvm_c = ["llvm-c/"+f+".h" for f in header_files]
        cflags = ["-I/usr/lib/llvm/11/include  -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS","-L/usr/lib/llvm/11/lib64"]
        info = ExternalCompilationInfo(includes=llvm_c, libraries=["LLVM-11"], include_dirs=["/usr/    lib/llvm/11/lib64"], compile_extra=cflags, link_extra=cflags)

        self.InitializeNativeTarget = rffi.llexternal("LLVMInitializeNativeTarget", [self.Void], self.Bool, compilation_info=info)