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