llvm/bindings/ocaml/bitreader/bitreader_ocaml.c

   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 }