llvm/bindings/ocaml/irreader/irreader_ocaml.c

   1 /*===-- irreader_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/IRReader.h"
  16 #include "caml/alloc.h"
  17 #include "caml/fail.h"
  18 #include "caml/memory.h"
  19 #include "caml/callback.h"
  20
  21 void llvm_raise(value Prototype, char *Message);
  22
  23 /* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
  24 value llvm_parse_ir(LLVMContextRef C, LLVMMemoryBufferRef MemBuf) {
  25   CAMLparam0();
  26   CAMLlocal2(Variant, MessageVal);
  27   LLVMModuleRef M;
  28   char *Message;
  29
  30   if (LLVMParseIRInContext(C, MemBuf, &M, &Message))
  31     llvm_raise(*caml_named_value("Llvm_irreader.Error"), Message);
  32
  33   CAMLreturn((value)M);
  34 }