================ @@ -0,0 +1,241 @@ +//===-- ReportRetriever.cpp ----------------------------*- 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 +// +//===----------------------------------------------------------------------===// + +#include "ReportRetriever.h" + +#include "lldb/Breakpoint/StoppointCallbackContext.h" +#include "lldb/Core/Debugger.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Expression/UserExpression.h" +#include "lldb/Target/InstrumentationRuntimeStopInfo.h" + +using namespace lldb; +using namespace lldb_private; + +const char *address_sanitizer_retrieve_report_data_prefix = R"( +extern "C" +{ +int __asan_report_present(); +void *__asan_get_report_pc(); +void *__asan_get_report_bp(); +void *__asan_get_report_sp(); +void *__asan_get_report_address(); +const char *__asan_get_report_description(); +int __asan_get_report_access_type(); +size_t __asan_get_report_access_size(); +} +)"; + +const char *address_sanitizer_retrieve_report_data_command = R"( +struct { + int present; + int access_type; + void *pc; + void *bp; + void *sp; + void *address; + size_t access_size; + const char *description; +} t; + +t.present = __asan_report_present(); +t.access_type = __asan_get_report_access_type(); +t.pc = __asan_get_report_pc(); +t.bp = __asan_get_report_bp(); +t.sp = __asan_get_report_sp(); +t.address = __asan_get_report_address(); +t.access_size = __asan_get_report_access_size(); +t.description = __asan_get_report_description(); +t +)"; + +StructuredData::ObjectSP ReportRetriever::RetrieveReportData(const ProcessSP process_sp) { + if (!process_sp) + return StructuredData::ObjectSP(); + + ThreadSP thread_sp = + process_sp->GetThreadList().GetExpressionExecutionThread(); + StackFrameSP frame_sp = + thread_sp->GetSelectedFrame(DoNoSelectMostRelevantFrame); + + if (!frame_sp) + return StructuredData::ObjectSP(); + + EvaluateExpressionOptions options; + options.SetUnwindOnError(true); + options.SetTryAllThreads(true); + options.SetStopOthers(true); + options.SetIgnoreBreakpoints(true); + options.SetTimeout(process_sp->GetUtilityExpressionTimeout()); + options.SetPrefix(address_sanitizer_retrieve_report_data_prefix); + options.SetAutoApplyFixIts(false); + options.SetLanguage(eLanguageTypeObjC_plus_plus); + + ValueObjectSP return_value_sp; + ExecutionContext exe_ctx; + Status eval_error; + frame_sp->CalculateExecutionContext(exe_ctx); + ExpressionResults result = UserExpression::Evaluate( + exe_ctx, options, address_sanitizer_retrieve_report_data_command, "", + return_value_sp, eval_error); + if (result != eExpressionCompleted) { + StreamString ss; + ss << "cannot evaluate AddressSanitizer expression:\n"; + ss << eval_error.AsCString(); + Debugger::ReportWarning(ss.GetString().str(), + process_sp->GetTarget().GetDebugger().GetID()); + return StructuredData::ObjectSP(); + } + + int present = return_value_sp->GetValueForExpressionPath(".present") + ->GetValueAsUnsigned(0); + if (present != 1) + return StructuredData::ObjectSP(); + + addr_t pc = + return_value_sp->GetValueForExpressionPath(".pc")->GetValueAsUnsigned(0); + addr_t bp = + return_value_sp->GetValueForExpressionPath(".bp")->GetValueAsUnsigned(0); + addr_t sp = + return_value_sp->GetValueForExpressionPath(".sp")->GetValueAsUnsigned(0); + addr_t address = return_value_sp->GetValueForExpressionPath(".address") + ->GetValueAsUnsigned(0); + addr_t access_type = + return_value_sp->GetValueForExpressionPath(".access_type") + ->GetValueAsUnsigned(0); + addr_t access_size = + return_value_sp->GetValueForExpressionPath(".access_size") + ->GetValueAsUnsigned(0); + addr_t description_ptr = + return_value_sp->GetValueForExpressionPath(".description") + ->GetValueAsUnsigned(0); + std::string description; + Status error; + process_sp->ReadCStringFromMemory(description_ptr, description, error); + + StructuredData::Dictionary *dict = new StructuredData::Dictionary(); ---------------- bulbazord wrote:
2 things about this: 1. `new` can fail, you should check the result before using it. 2. You're returning a shared pointer anyway, might as well make a `StructuredData::DictionarySP` in the first place. Please use `std::make_shared` instead of `new` for that. https://github.com/llvm/llvm-project/pull/69388 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits