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//===---- 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
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