| //===-- Breakpoint.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 "Breakpoint.h" |
| #include "DAP.h" |
| #include "JSONUtils.h" |
| #include "lldb/API/SBAddress.h" |
| #include "lldb/API/SBBreakpointLocation.h" |
| #include "lldb/API/SBLineEntry.h" |
| #include "lldb/API/SBMutex.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include <cstddef> |
| #include <cstdint> |
| #include <mutex> |
| #include <string> |
| |
| using namespace lldb_dap; |
| |
| void Breakpoint::SetCondition() { m_bp.SetCondition(m_condition.c_str()); } |
| |
| void Breakpoint::SetHitCondition() { |
| uint64_t hitCount = 0; |
| if (llvm::to_integer(m_hit_condition, hitCount)) |
| m_bp.SetIgnoreCount(hitCount - 1); |
| } |
| |
| protocol::Breakpoint Breakpoint::ToProtocolBreakpoint() { |
| protocol::Breakpoint breakpoint; |
| |
| // Each breakpoint location is treated as a separate breakpoint for VS code. |
| // They don't have the notion of a single breakpoint with multiple locations. |
| if (!m_bp.IsValid()) |
| return breakpoint; |
| |
| breakpoint.verified = m_bp.GetNumResolvedLocations() > 0; |
| breakpoint.id = m_bp.GetID(); |
| // VS Code DAP doesn't currently allow one breakpoint to have multiple |
| // locations so we just report the first one. If we report all locations |
| // then the IDE starts showing the wrong line numbers and locations for |
| // other source file and line breakpoints in the same file. |
| |
| // Below we search for the first resolved location in a breakpoint and report |
| // this as the breakpoint location since it will have a complete location |
| // that is at least loaded in the current process. |
| lldb::SBBreakpointLocation bp_loc; |
| const auto num_locs = m_bp.GetNumLocations(); |
| for (size_t i = 0; i < num_locs; ++i) { |
| bp_loc = m_bp.GetLocationAtIndex(i); |
| if (bp_loc.IsResolved()) |
| break; |
| } |
| // If not locations are resolved, use the first location. |
| if (!bp_loc.IsResolved()) |
| bp_loc = m_bp.GetLocationAtIndex(0); |
| auto bp_addr = bp_loc.GetAddress(); |
| |
| if (bp_addr.IsValid()) { |
| std::string formatted_addr = |
| "0x" + llvm::utohexstr(bp_addr.GetLoadAddress(m_bp.GetTarget())); |
| breakpoint.instructionReference = formatted_addr; |
| auto line_entry = bp_addr.GetLineEntry(); |
| const auto line = line_entry.GetLine(); |
| if (line != UINT32_MAX) |
| breakpoint.line = line; |
| const auto column = line_entry.GetColumn(); |
| if (column != 0) |
| breakpoint.column = column; |
| breakpoint.source = CreateSource(line_entry); |
| } |
| |
| return breakpoint; |
| } |
| |
| bool Breakpoint::MatchesName(const char *name) { |
| return m_bp.MatchesName(name); |
| } |
| |
| void Breakpoint::SetBreakpoint() { |
| lldb::SBMutex lock = m_dap.GetAPIMutex(); |
| std::lock_guard<lldb::SBMutex> guard(lock); |
| |
| m_bp.AddName(kDAPBreakpointLabel); |
| if (!m_condition.empty()) |
| SetCondition(); |
| if (!m_hit_condition.empty()) |
| SetHitCondition(); |
| } |