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1 //===- support.go - Bindings for support ----------------------------------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file defines bindings for the support component.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 package llvm
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15
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16 /*
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17 #include "llvm-c/Support.h"
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18 #include "SupportBindings.h"
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19 #include <stdlib.h>
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20 */
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21 import "C"
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22
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23 import (
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24 "errors"
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25 "unsafe"
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26 )
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27
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28 // Loads a dynamic library such that it may be used as an LLVM plugin.
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29 // See llvm::sys::DynamicLibrary::LoadLibraryPermanently.
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30 func LoadLibraryPermanently(lib string) error {
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31 var errstr *C.char
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32 libstr := C.CString(lib)
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33 defer C.free(unsafe.Pointer(libstr))
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34 C.LLVMLoadLibraryPermanently2(libstr, &errstr)
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35 if errstr != nil {
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36 err := errors.New(C.GoString(errstr))
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37 C.free(unsafe.Pointer(errstr))
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38 return err
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39 }
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40 return nil
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41 }
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42
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43 // Parse the given arguments using the LLVM command line parser.
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44 // See llvm::cl::ParseCommandLineOptions.
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45 func ParseCommandLineOptions(args []string, overview string) {
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46 argstrs := make([]*C.char, len(args))
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47 for i, arg := range args {
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48 argstrs[i] = C.CString(arg)
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49 defer C.free(unsafe.Pointer(argstrs[i]))
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50 }
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51 overviewstr := C.CString(overview)
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52 defer C.free(unsafe.Pointer(overviewstr))
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53 C.LLVMParseCommandLineOptions(C.int(len(args)), &argstrs[0], overviewstr)
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54 }
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