src/llvm/bindings/go/llvm/support.go

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