ocaml llvm kaleidoscope tutorial“Unbound module LlvmExecutionEngine” [英] ocaml llvm kaleidoscope tutorial "Unbound module LlvmExecutionEngine"

问题描述

我切换到我的Mac，不再有这个问题，但有一个类似的。 Ocaml llvm未绑定模块执行引擎

I switched to my mac and no longer have this issue but have a similar one. Ocaml llvm "Unbound module ExecutionEngine"

我尝试让此工作：
https：// github.com/llvm-mirror/llvm/tree/master/examples/OCaml-Kaleidoscope/第7章

从本教程
http://llvm.org/docs/tutorial/OCamlLangImpl7.html

（我99％确定这两个是同一个人）

(I'm 99% sure these two are by the same people)

在遇到几个问题后，我遇到了一个绊脚石最近几小时

After getting around a few issues I have reached a stumbling block for the last few hours of

 me@mypc:~/Desktop/llvm-master/examples/OCaml-Kaleidoscope/Chapter7$ ocamlbuild -use-ocamlfind toy.byte -package llvm llvm_executionengine
    Finished, 0 targets (0 cached) in 00:00:00.
    File "_tags", line 4, characters 41-53:
    Warning: the tag "use_bindings" is not used in any flag declaration, so it will have no effect; it may be a typo. Otherwise use `mark_tag_used` in your myocamlbuild.ml to disable this warning.
    + ocamlfind ocamlc -c -package llvm -o toplevel.cmo toplevel.ml
    File "toplevel.ml", line 6, characters 5-24:
    Error: Unbound module LlvmExecutionEngine
    Command exited with code 2.
    Compilation unsuccessful after building 13 targets (12 cached) in 00:00:00.

我确定llvm_executionengine是正确的包，如果我尝试别的东西，知道它是什么包。

I'm pretty sure llvm_executionengine is the right package as if I try something else it says it doesn't know what package it is.

以下是顶部几行含有错误行的代码：

Here is the are the top few lines of code with the error line:

 (*===----------------------------------------------------------------------===
 * Top-Level parsing and JIT Driver
 *===----------------------------------------------------------------------===*)

    open Llvm
    open Llvm_executionengine

    (* top ::= definition | external | expression | ';' *)
    let rec main_loop the_fpm the_execution_engine stream =
      match Stream.peek stream with
      | None -> ()

任何帮助都是超级！

我尝试了tobiasBora的第一部分的答案，并得到这个结果：

I tried the first part of tobiasBora's answer and got this result:

$ ocamlbuild -use-ocamlfind test.byte -package llvm
Finished, 0 targets (0 cached) in 00:00:00.
File "_tags", line 4, characters 41-53:
Warning: the tag "use_bindings" is not used in any flag declaration, so it will have no effect; it may be a typo. Otherwise use `mark_tag_used` in your myocamlbuild.ml to disable this warning.
Solver failed:
  Ocamlbuild cannot find or build test.ml.  A file with such a name would usually be a source file.  I suspect you have given a wrong target name to Ocamlbuild.
Compilation unsuccessful after building 0 targets (0 cached) in 00:00:00.

推荐答案

首先尝试使用

ocamlbuild -use-ocamlfind toy.byte -package llvm

（请注意，我从您的示例中删除了llvm_executionengine）

(please note that I removed the "llvm_executionengine" from your example)

如果它仍然无法正常工作，尝试这样：首先我运行Ocaml 4.03.0：

If it still doesn't work, since it work for me try this : First i'm running Ocaml 4.03.0 :

opam switch 4.03.0

然后我需要安装llvm：

and then I need to install llvm :

opam depext llvm.3.8
opam install llvm

安装后，系统会自动安装它，然后它会自动运行此代码
）

(If depext isn't installed, it will automatically install it. Then it will automatically run this code )

然后我编译你的代码：

ocamlbuild -use-ocamlfind toy.byte -package llvm

（请注意，我删除了llvm_executionengine ）

(please note that I removed the "llvm_executionengine" in your example)

您可以注意到一个错误使得llvm 3.8在ocaml的旧版本中不可用。如果您仍然有问题，请尝试安装3.5版本，它可能会解决一些问题：

You can note that a bug make llvm 3.8 unusable in older versions of ocaml. If you still have problems, please try to install the 3.5 version, it may solve some problems :

sudo apt-get install llvm-3.5 llvm-3.5-dev

这篇关于ocaml llvm kaleidoscope tutorial“Unbound module LlvmExecutionEngine”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！