mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-03 14:21:30 +00:00
00e08fcaa0
Add header guards to files that were missing guards. Remove #endif comments as they don't seem common in LLVM (we can easily add them back if we decide they're useful) Changes made by clang-tidy with minor tweaks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215558 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
//===---- 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 LLVM_TOOLS_LLI_REMOTETARGETMESSAGE_H
|
|
#define LLVM_TOOLS_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.
|
|
//
|
|
// Quick description of the protocol:
|
|
//
|
|
// { Header + Payload Size + Payload }
|
|
//
|
|
// The protocol message consist of a header, the payload size (which can be
|
|
// zero), and the payload itself. The payload can contain any number of items,
|
|
// and the size has to be the sum of them all. Each end is responsible for
|
|
// reading/writing the correct number of items with the correct sizes.
|
|
//
|
|
// The current four known exchanges are:
|
|
//
|
|
// * Allocate Space:
|
|
// Parent: { LLI_AllocateSpace, 8, Alignment, Size }
|
|
// Child: { LLI_AllocationResult, 8, Address }
|
|
//
|
|
// * Load Data:
|
|
// Parent: { LLI_LoadDataSection, 8+Size, Address, Data }
|
|
// Child: { LLI_LoadComplete, 4, StatusCode }
|
|
//
|
|
// * Load Code:
|
|
// Parent: { LLI_LoadCodeSection, 8+Size, Address, Code }
|
|
// Child: { LLI_LoadComplete, 4, StatusCode }
|
|
//
|
|
// * Execute Code:
|
|
// Parent: { LLI_Execute, 8, Address }
|
|
// Child: { LLI_ExecutionResult, 4, Result }
|
|
//
|
|
// It is the responsibility of either side to check for correct headers,
|
|
// sizes and payloads, since any inconsistency would misalign the pipe, and
|
|
// result in data corruption.
|
|
|
|
enum LLIMessageType {
|
|
LLI_Error = -1,
|
|
LLI_ChildActive = 0, // Data = not used
|
|
LLI_AllocateSpace, // Data = struct { uint32_t Align, uint_32t Size }
|
|
LLI_AllocationResult, // Data = uint64_t Address (child memory space)
|
|
|
|
LLI_LoadCodeSection, // Data = uint64_t Address, void * SectionData
|
|
LLI_LoadDataSection, // Data = uint64_t Address, void * SectionData
|
|
LLI_LoadResult, // Data = uint32_t LLIMessageStatus
|
|
|
|
LLI_Execute, // Data = uint64_t Address
|
|
LLI_ExecutionResult, // Data = uint32_t Result
|
|
|
|
LLI_Terminate // Data = not used
|
|
};
|
|
|
|
enum LLIMessageStatus {
|
|
LLI_Status_Success = 0, // Operation succeeded
|
|
LLI_Status_NotAllocated, // Address+Size not allocated in child space
|
|
LLI_Status_IncompleteMsg // Size received doesn't match request
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|