127 lines
4.6 KiB
C
127 lines
4.6 KiB
C
/*===-- executionengine_ocaml.c - LLVM OCaml Glue ---------------*- C++ -*-===*\
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|* *|
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|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
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|* Exceptions. *|
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|* See https://llvm.org/LICENSE.txt for license information. *|
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|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
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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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|* Note that these functions intentionally take liberties with the CAMLparamX *|
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|* macros, since most of the parameters are not GC heap objects. *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#include <string.h>
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#include <assert.h>
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#include "llvm-c/Core.h"
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#include "llvm-c/ExecutionEngine.h"
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#include "llvm-c/Target.h"
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#include "caml/alloc.h"
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#include "caml/custom.h"
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#include "caml/fail.h"
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#include "caml/memory.h"
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#include "caml/callback.h"
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void llvm_raise(value Prototype, char *Message);
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/* unit -> bool */
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value llvm_ee_initialize(value Unit) {
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LLVMLinkInMCJIT();
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return Val_bool(!LLVMInitializeNativeTarget() &&
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!LLVMInitializeNativeAsmParser() &&
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!LLVMInitializeNativeAsmPrinter());
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}
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/* llmodule -> llcompileroption -> ExecutionEngine.t */
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LLVMExecutionEngineRef llvm_ee_create(value OptRecordOpt, LLVMModuleRef M) {
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value OptRecord;
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LLVMExecutionEngineRef MCJIT;
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char *Error;
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struct LLVMMCJITCompilerOptions Options;
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LLVMInitializeMCJITCompilerOptions(&Options, sizeof(Options));
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if (OptRecordOpt != Val_int(0)) {
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OptRecord = Field(OptRecordOpt, 0);
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Options.OptLevel = Int_val(Field(OptRecord, 0));
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Options.CodeModel = Int_val(Field(OptRecord, 1));
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Options.NoFramePointerElim = Int_val(Field(OptRecord, 2));
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Options.EnableFastISel = Int_val(Field(OptRecord, 3));
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Options.MCJMM = NULL;
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}
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if (LLVMCreateMCJITCompilerForModule(&MCJIT, M, &Options, sizeof(Options),
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&Error))
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llvm_raise(*caml_named_value("Llvm_executionengine.Error"), Error);
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return MCJIT;
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}
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/* ExecutionEngine.t -> unit */
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value llvm_ee_dispose(LLVMExecutionEngineRef EE) {
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LLVMDisposeExecutionEngine(EE);
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return Val_unit;
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}
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/* llmodule -> ExecutionEngine.t -> unit */
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value llvm_ee_add_module(LLVMModuleRef M, LLVMExecutionEngineRef EE) {
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LLVMAddModule(EE, M);
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return Val_unit;
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}
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/* llmodule -> ExecutionEngine.t -> llmodule */
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value llvm_ee_remove_module(LLVMModuleRef M, LLVMExecutionEngineRef EE) {
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LLVMModuleRef RemovedModule;
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char *Error;
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if (LLVMRemoveModule(EE, M, &RemovedModule, &Error))
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llvm_raise(*caml_named_value("Llvm_executionengine.Error"), Error);
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return Val_unit;
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}
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/* ExecutionEngine.t -> unit */
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value llvm_ee_run_static_ctors(LLVMExecutionEngineRef EE) {
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LLVMRunStaticConstructors(EE);
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return Val_unit;
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}
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/* ExecutionEngine.t -> unit */
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value llvm_ee_run_static_dtors(LLVMExecutionEngineRef EE) {
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LLVMRunStaticDestructors(EE);
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return Val_unit;
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}
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extern value llvm_alloc_data_layout(LLVMTargetDataRef TargetData);
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/* ExecutionEngine.t -> Llvm_target.DataLayout.t */
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value llvm_ee_get_data_layout(LLVMExecutionEngineRef EE) {
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value DataLayout;
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LLVMTargetDataRef OrigDataLayout;
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char *TargetDataCStr;
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OrigDataLayout = LLVMGetExecutionEngineTargetData(EE);
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TargetDataCStr = LLVMCopyStringRepOfTargetData(OrigDataLayout);
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DataLayout = llvm_alloc_data_layout(LLVMCreateTargetData(TargetDataCStr));
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LLVMDisposeMessage(TargetDataCStr);
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return DataLayout;
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}
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/* Llvm.llvalue -> int64 -> llexecutionengine -> unit */
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value llvm_ee_add_global_mapping(LLVMValueRef Global, value Ptr,
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LLVMExecutionEngineRef EE) {
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LLVMAddGlobalMapping(EE, Global, (void *)(Int64_val(Ptr)));
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return Val_unit;
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}
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value llvm_ee_get_global_value_address(value Name, LLVMExecutionEngineRef EE) {
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return caml_copy_int64(
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(int64_t)LLVMGetGlobalValueAddress(EE, String_val(Name)));
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}
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value llvm_ee_get_function_address(value Name, LLVMExecutionEngineRef EE) {
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return caml_copy_int64((int64_t)LLVMGetFunctionAddress(EE, String_val(Name)));
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}
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