1 /*===-- bitwriter_ocaml.c - LLVM OCaml Glue ---------------------*- C++ -*-===*\
2 |*                                                                            *|
3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
4 |* Exceptions.                                                                *|
5 |* See https://llvm.org/LICENSE.txt for license information.                  *|
6 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
7 |*                                                                            *|
8 |*===----------------------------------------------------------------------===*|
9 |*                                                                            *|
10 |* This file glues LLVM's OCaml interface to its C interface. These functions *|
11 |* are by and large transparent wrappers to the corresponding C functions.    *|
12 |*                                                                            *|
13 \*===----------------------------------------------------------------------===*/
14 
15 #include "llvm-c/BitReader.h"
16 #include "llvm-c/Core.h"
17 #include "caml/alloc.h"
18 #include "caml/fail.h"
19 #include "caml/memory.h"
20 #include "caml/callback.h"
21 
22 void llvm_raise(value Prototype, char *Message);
23 
24 /* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
25 LLVMModuleRef llvm_get_module(LLVMContextRef C, LLVMMemoryBufferRef MemBuf) {
26   LLVMModuleRef M;
27 
28   if (LLVMGetBitcodeModuleInContext2(C, MemBuf, &M))
29     llvm_raise(*caml_named_value("Llvm_bitreader.Error"),
30                LLVMCreateMessage(""));
31 
32   return M;
33 }
34 
35 /* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
36 LLVMModuleRef llvm_parse_bitcode(LLVMContextRef C, LLVMMemoryBufferRef MemBuf) {
37   LLVMModuleRef M;
38 
39   if (LLVMParseBitcodeInContext2(C, MemBuf, &M))
40     llvm_raise(*caml_named_value("Llvm_bitreader.Error"),
41                LLVMCreateMessage(""));
42 
43   return M;
44 }
45