forked from OSchip/llvm-project
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*===-- bitwriter_ocaml.c - LLVM OCaml Glue ---------------------*- C++ -*-===*\
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|* *|
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|* The LLVM Compiler Infrastructure *|
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|* *|
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|* This file is distributed under the University of Illinois Open Source *|
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|* License. See LICENSE.TXT for details. *|
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|* *|
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|*===----------------------------------------------------------------------===*|
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|* *|
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|* This file glues LLVM's OCaml interface to its C interface. These functions *|
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|* are by and large transparent wrappers to the corresponding C functions. *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#include "llvm-c/BitReader.h"
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#include "caml/alloc.h"
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#include "caml/fail.h"
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#include "caml/memory.h"
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/* Can't use the recommended caml_named_value mechanism for backwards
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compatibility reasons. This is largely equivalent. */
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static value llvm_bitreader_error_exn;
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CAMLprim value llvm_register_bitreader_exns(value Error) {
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llvm_bitreader_error_exn = Field(Error, 0);
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register_global_root(&llvm_bitreader_error_exn);
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return Val_unit;
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}
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static void llvm_raise(value Prototype, char *Message) {
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CAMLparam1(Prototype);
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CAMLlocal1(CamlMessage);
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CamlMessage = copy_string(Message);
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LLVMDisposeMessage(Message);
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raise_with_arg(Prototype, CamlMessage);
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abort(); /* NOTREACHED */
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#ifdef CAMLnoreturn
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CAMLnoreturn; /* Silences warnings, but is missing in some versions. */
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#endif
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}
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/*===-- Modules -----------------------------------------------------------===*/
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/* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
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CAMLprim value llvm_get_module(LLVMContextRef C, LLVMMemoryBufferRef MemBuf) {
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CAMLparam0();
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CAMLlocal2(Variant, MessageVal);
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char *Message;
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LLVMModuleRef M;
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if (LLVMGetBitcodeModuleInContext(C, MemBuf, &M, &Message))
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llvm_raise(llvm_bitreader_error_exn, Message);
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CAMLreturn((value) M);
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}
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/* Llvm.llcontext -> Llvm.llmemorybuffer -> Llvm.llmodule */
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CAMLprim value llvm_parse_bitcode(LLVMContextRef C,
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LLVMMemoryBufferRef MemBuf) {
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CAMLparam0();
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CAMLlocal2(Variant, MessageVal);
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LLVMModuleRef M;
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char *Message;
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if (LLVMParseBitcodeInContext(C, MemBuf, &M, &Message))
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llvm_raise(llvm_bitreader_error_exn, Message);
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CAMLreturn((value) M);
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}
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