| 1 | //===-- SetDataBreakpointsRequestHandler.cpp ------------------------------===// |
|---|---|
| 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 "DAP.h" |
| 10 | #include "EventHelper.h" |
| 11 | #include "Protocol/ProtocolRequests.h" |
| 12 | #include "RequestHandler.h" |
| 13 | #include "Watchpoint.h" |
| 14 | #include <set> |
| 15 | |
| 16 | namespace lldb_dap { |
| 17 | |
| 18 | /// Replaces all existing data breakpoints with new data breakpoints. |
| 19 | /// To clear all data breakpoints, specify an empty array. |
| 20 | /// When a data breakpoint is hit, a stopped event (with reason data breakpoint) |
| 21 | /// is generated. Clients should only call this request if the corresponding |
| 22 | /// capability supportsDataBreakpoints is true. |
| 23 | llvm::Expected<protocol::SetDataBreakpointsResponseBody> |
| 24 | SetDataBreakpointsRequestHandler::Run( |
| 25 | const protocol::SetDataBreakpointsArguments &args) const { |
| 26 | std::vector<protocol::Breakpoint> response_breakpoints; |
| 27 | |
| 28 | dap.target.DeleteAllWatchpoints(); |
| 29 | std::vector<Watchpoint> watchpoints; |
| 30 | for (const auto &bp : args.breakpoints) |
| 31 | watchpoints.emplace_back(args&: dap, args: bp); |
| 32 | |
| 33 | // If two watchpoints start at the same address, the latter overwrite the |
| 34 | // former. So, we only enable those at first-seen addresses when iterating |
| 35 | // backward. |
| 36 | std::set<lldb::addr_t> addresses; |
| 37 | for (auto iter = watchpoints.rbegin(); iter != watchpoints.rend(); ++iter) { |
| 38 | if (addresses.count(x: iter->GetAddress()) == 0) { |
| 39 | iter->SetWatchpoint(); |
| 40 | addresses.insert(x: iter->GetAddress()); |
| 41 | } |
| 42 | } |
| 43 | for (auto wp : watchpoints) |
| 44 | response_breakpoints.push_back(x: wp.ToProtocolBreakpoint()); |
| 45 | |
| 46 | return protocol::SetDataBreakpointsResponseBody{ |
| 47 | .breakpoints: std::move(response_breakpoints)}; |
| 48 | } |
| 49 | |
| 50 | } // namespace lldb_dap |
| 51 |