1 //===-- Watchpoint.cpp ------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "Watchpoint.h" 10 #include "DAP.h" 11 #include "JSONUtils.h" 12 #include "lldb/API/SBTarget.h" 13 #include "lldb/lldb-enumerations.h" 14 #include "llvm/ADT/StringExtras.h" 15 #include "llvm/ADT/StringRef.h" 16 #include "llvm/Support/JSON.h" 17 #include <cstdint> 18 #include <string> 19 20 namespace lldb_dap { 21 Watchpoint::Watchpoint(DAP &d, const llvm::json::Object &obj) 22 : BreakpointBase(d, obj) { 23 llvm::StringRef dataId = GetString(obj, "dataId"); 24 std::string accessType = GetString(obj, "accessType").str(); 25 auto [addr_str, size_str] = dataId.split('/'); 26 llvm::to_integer(addr_str, addr, 16); 27 llvm::to_integer(size_str, size); 28 options.SetWatchpointTypeRead(accessType != "write"); 29 if (accessType != "read") 30 options.SetWatchpointTypeWrite(lldb::eWatchpointWriteTypeOnModify); 31 } 32 33 void Watchpoint::SetCondition() { wp.SetCondition(condition.c_str()); } 34 35 void Watchpoint::SetHitCondition() { 36 uint64_t hitCount = 0; 37 if (llvm::to_integer(hitCondition, hitCount)) 38 wp.SetIgnoreCount(hitCount - 1); 39 } 40 41 void Watchpoint::CreateJsonObject(llvm::json::Object &object) { 42 if (!error.IsValid() || error.Fail()) { 43 object.try_emplace("verified", false); 44 if (error.Fail()) 45 EmplaceSafeString(object, "message", error.GetCString()); 46 } else { 47 object.try_emplace("verified", true); 48 } 49 } 50 51 void Watchpoint::SetWatchpoint() { 52 wp = dap.target.WatchpointCreateByAddress(addr, size, options, error); 53 if (!condition.empty()) 54 SetCondition(); 55 if (!hitCondition.empty()) 56 SetHitCondition(); 57 } 58 } // namespace lldb_dap 59