1 //===-- MinidumpTypes.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 "MinidumpTypes.h" 10 11 // C includes 12 // C++ includes 13 14 using namespace lldb_private; 15 using namespace minidump; 16 17 // MinidumpMiscInfo 18 const MinidumpMiscInfo *MinidumpMiscInfo::Parse(llvm::ArrayRef<uint8_t> &data) { 19 const MinidumpMiscInfo *misc_info; 20 Status error = consumeObject(data, misc_info); 21 if (error.Fail()) 22 return nullptr; 23 24 return misc_info; 25 } 26 27 llvm::Optional<lldb::pid_t> MinidumpMiscInfo::GetPid() const { 28 uint32_t pid_flag = static_cast<uint32_t>(MinidumpMiscInfoFlags::ProcessID); 29 if (flags1 & pid_flag) 30 return llvm::Optional<lldb::pid_t>(process_id); 31 32 return llvm::None; 33 } 34 35 // Linux Proc Status 36 // it's stored as an ascii string in the file 37 llvm::Optional<LinuxProcStatus> 38 LinuxProcStatus::Parse(llvm::ArrayRef<uint8_t> &data) { 39 LinuxProcStatus result; 40 result.proc_status = 41 llvm::StringRef(reinterpret_cast<const char *>(data.data()), data.size()); 42 data = data.drop_front(data.size()); 43 44 llvm::SmallVector<llvm::StringRef, 0> lines; 45 result.proc_status.split(lines, '\n', 42); 46 // /proc/$pid/status has 41 lines, but why not use 42? 47 for (auto line : lines) { 48 if (line.consume_front("Pid:")) { 49 line = line.trim(); 50 if (!line.getAsInteger(10, result.pid)) 51 return result; 52 } 53 } 54 55 return llvm::None; 56 } 57 58 lldb::pid_t LinuxProcStatus::GetPid() const { return pid; } 59 60 std::pair<llvm::ArrayRef<MinidumpMemoryDescriptor64>, uint64_t> 61 MinidumpMemoryDescriptor64::ParseMemory64List(llvm::ArrayRef<uint8_t> &data) { 62 const llvm::support::ulittle64_t *mem_ranges_count; 63 Status error = consumeObject(data, mem_ranges_count); 64 if (error.Fail() || 65 *mem_ranges_count * sizeof(MinidumpMemoryDescriptor64) > data.size()) 66 return {}; 67 68 const llvm::support::ulittle64_t *base_rva; 69 error = consumeObject(data, base_rva); 70 if (error.Fail()) 71 return {}; 72 73 return std::make_pair( 74 llvm::makeArrayRef( 75 reinterpret_cast<const MinidumpMemoryDescriptor64 *>(data.data()), 76 *mem_ranges_count), 77 *base_rva); 78 } 79