| //===---- RemoteTargetMessage.h - LLI out-of-process message protocol -----===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Definition of the LLIMessageType enum which is used for communication with a |
| // child process for remote execution. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLI_REMOTETARGETMESSAGE_H |
| #define LLI_REMOTETARGETMESSAGE_H |
| |
| namespace llvm { |
| |
| // LLI messages from parent-to-child or vice versa follow an exceedingly simple |
| // protocol where the first four bytes represent the message type, the next |
| // four bytes represent the size of data for the command and following bytes |
| // represent the actual data. |
| // |
| // The protocol is not intended to be robust, secure or fault-tolerant. It is |
| // only here for testing purposes and is therefore intended to be the simplest |
| // implementation that will work. It is assumed that the parent and child |
| // share characteristics like endianness. |
| |
| enum LLIMessageType { |
| LLI_Error = -1, |
| LLI_ChildActive = 0, // Data = not used |
| LLI_AllocateSpace, // Data = struct { uint_32t Align, uint_32t Size } |
| LLI_AllocationResult, // Data = uint64_t AllocAddress (in Child memory space) |
| LLI_LoadCodeSection, // Data = uint32_t Addr, followed by section contests |
| LLI_LoadDataSection, // Data = uint32_t Addr, followed by section contents |
| LLI_LoadComplete, // Data = not used |
| LLI_Execute, // Data = Address of function to execute |
| LLI_ExecutionResult, // Data = uint64_t Result |
| LLI_Terminate // Data = not used |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |