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| //===- bitreader.go - Bindings for bitreader ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines bindings for the bitreader component.
//
//===----------------------------------------------------------------------===//
package llvm
/*
#include "llvm-c/BitReader.h"
#include "llvm-c/Core.h"
#include <stdlib.h>
*/
import "C"
import (
"errors"
"unsafe"
)
// ParseBitcodeFile parses the LLVM IR (bitcode) in the file with the
// specified name, and returns a new LLVM module.
func ParseBitcodeFile(name string) (Module, error) {
var buf C.LLVMMemoryBufferRef
var errmsg *C.char
var cfilename *C.char = C.CString(name)
defer C.free(unsafe.Pointer(cfilename))
result := C.LLVMCreateMemoryBufferWithContentsOfFile(cfilename, &buf, &errmsg)
if result != 0 {
err := errors.New(C.GoString(errmsg))
C.free(unsafe.Pointer(errmsg))
return Module{}, err
}
defer C.LLVMDisposeMemoryBuffer(buf)
var m Module
if C.LLVMParseBitcode2(buf, &m.C) == 0 {
return m, nil
}
err := errors.New(C.GoString(errmsg))
C.free(unsafe.Pointer(errmsg))
return Module{}, err
}
|