================ @@ -0,0 +1,135 @@ +// This file comes from https://reviews.llvm.org/D78978. +// Author: [@paolosev](https://reviews.llvm.org/p/paolosev/). + +//===-- ProcessWasm.h -------------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLDB_SOURCE_PLUGINS_PROCESS_WASM_PROCESSWASM_H +#define LLDB_SOURCE_PLUGINS_PROCESS_WASM_PROCESSWASM_H + +#include "Plugins/Process/gdb-remote/ProcessGDBRemote.h" +#include "lldb/Target/RegisterContext.h" + +namespace lldb_private { +namespace wasm { + +// Each WebAssembly module has separated address spaces for Code and Memory. +// A WebAssembly module also has a Data section which, when the module is +// loaded, gets mapped into a region in the module Memory. +// For the purpose of debugging, we can represent all these separated 32-bit +// address spaces with a single virtual 64-bit address space. +// +// Struct wasm_addr_t provides this encoding using bitfields +// +enum WasmAddressType { + Memory = 0x00, + Object = 0x01, + Invalid = 0x03 +}; +struct wasm_addr_t { + uint64_t offset : 32; + uint64_t module_id : 30; + uint64_t type : 2; + + wasm_addr_t(lldb::addr_t addr) + : type(addr >> 62), module_id((addr & 0x00ffffff00000000) >> 32), + offset(addr & 0x00000000ffffffff) {} + + wasm_addr_t(WasmAddressType type_, uint32_t module_id_, uint32_t offset_) + : type(type_), module_id(module_id_), offset(offset_) {} + + WasmAddressType GetType() { return static_cast<WasmAddressType>(type); } + operator lldb::addr_t() { return *(uint64_t *)this; } +}; + +/// ProcessWasm provides the access to the Wasm program state +/// retrieved from the Wasm engine. ---------------- JDevlieghere wrote:
spurious space https://github.com/llvm/llvm-project/pull/76683 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
