1 //===------ jit_dispatch.h - Call back to an ORC controller -----*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file is a part of the ORC runtime support library. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef ORC_RT_JIT_DISPATCH_H 14 #define ORC_RT_JIT_DISPATCH_H 15 16 #include "common.h" 17 #include "wrapper_function_utils.h" 18 19 namespace orc_rt { 20 21 class JITDispatch { 22 public: 23 JITDispatch(const void *FnTag) : FnTag(FnTag) {} 24 25 WrapperFunctionResult operator()(const char *ArgData, size_t ArgSize) { 26 // Since the functions cannot be zero/unresolved on Windows, the following 27 // reference taking would always be non-zero, thus generating a compiler 28 // warning otherwise. 29 #if !defined(_WIN32) 30 if (ORC_RT_UNLIKELY(!&__orc_rt_jit_dispatch_ctx)) 31 return WrapperFunctionResult::createOutOfBandError( 32 "__orc_rt_jit_dispatch_ctx not set") 33 .release(); 34 if (ORC_RT_UNLIKELY(!&__orc_rt_jit_dispatch)) 35 return WrapperFunctionResult::createOutOfBandError( 36 "__orc_rt_jit_dispatch not set") 37 .release(); 38 #endif 39 40 return __orc_rt_jit_dispatch(&__orc_rt_jit_dispatch_ctx, FnTag, ArgData, 41 ArgSize); 42 } 43 44 private: 45 const void *FnTag; 46 }; 47 48 } // namespace orc_rt 49 50 #endif // ORC_RT_JIT_DISPATCH_H 51