================ @@ -0,0 +1,76 @@ +//===-- UnwindWasm.cpp ----------------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "UnwindWasm.h" +#include "Plugins/Process/gdb-remote/ThreadGDBRemote.h" +#include "Plugins/Process/wasm/ProcessWasm.h" +#include "Plugins/Process/wasm/ThreadWasm.h" +#include "lldb/lldb-forward.h" +#include "wasmRegisterContext.h" + +using namespace lldb; +using namespace lldb_private; +using namespace process_gdb_remote; +using namespace wasm; + +class WasmGDBRemoteRegisterContext : public GDBRemoteRegisterContext { +public: + WasmGDBRemoteRegisterContext(ThreadGDBRemote &thread, + uint32_t concrete_frame_idx, + GDBRemoteDynamicRegisterInfoSP ®_info_sp, + uint64_t pc) + : GDBRemoteRegisterContext(thread, concrete_frame_idx, reg_info_sp, false, + false) { + PrivateSetRegisterValue(0, pc); + } +}; + +lldb::RegisterContextSP +UnwindWasm::DoCreateRegisterContextForFrame(lldb_private::StackFrame *frame) { + if (m_frames.size() <= frame->GetFrameIndex()) { + return lldb::RegisterContextSP(); + } + + ThreadSP thread = frame->GetThread(); + ProcessSP process_sp = thread->GetProcess(); + ThreadWasm *wasm_thread = static_cast<ThreadWasm *>(thread.get()); + ProcessWasm *wasm_process = static_cast<ProcessWasm *>(process_sp.get()); + std::shared_ptr<WasmRegisterContext> reg_ctx_sp = + std::make_shared<WasmRegisterContext>(*wasm_thread, + frame->GetConcreteFrameIndex(), + wasm_process->GetRegisterInfo()); + return reg_ctx_sp; +} + +uint32_t UnwindWasm::DoGetFrameCount() { + if (!m_unwind_complete) { + m_unwind_complete = true; + m_frames.clear(); + + ThreadWasm &wasm_thread = static_cast<ThreadWasm &>(GetThread()); + if (!wasm_thread.GetWasmCallStack(m_frames)) + m_frames.clear(); + } + return m_frames.size(); +} + +bool UnwindWasm::DoGetFrameInfoAtIndex(uint32_t frame_idx, lldb::addr_t &cfa, + lldb::addr_t &pc, + bool &behaves_like_zeroth_frame) { + if (m_frames.size() == 0) { + DoGetFrameCount(); + } ---------------- clayborg wrote:
no braces for single line if statments per llvm coding guidelines. https://github.com/llvm/llvm-project/pull/77949 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
