| 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 | #include <optional> |
| 11 | |
| 12 | // C includes |
| 13 | // C++ includes |
| 14 | |
| 15 | using namespace lldb_private; |
| 16 | using namespace minidump; |
| 17 | |
| 18 | // MinidumpMiscInfo |
| 19 | const MinidumpMiscInfo *MinidumpMiscInfo::Parse(llvm::ArrayRef<uint8_t> &data) { |
| 20 | const MinidumpMiscInfo *misc_info; |
| 21 | Status error = consumeObject(Buffer&: data, Object&: misc_info); |
| 22 | if (error.Fail()) |
| 23 | return nullptr; |
| 24 | |
| 25 | return misc_info; |
| 26 | } |
| 27 | |
| 28 | std::optional<lldb::pid_t> MinidumpMiscInfo::GetPid() const { |
| 29 | uint32_t pid_flag = static_cast<uint32_t>(MinidumpMiscInfoFlags::ProcessID); |
| 30 | if (flags1 & pid_flag) |
| 31 | return std::optional<lldb::pid_t>(process_id); |
| 32 | |
| 33 | return std::nullopt; |
| 34 | } |
| 35 | |
| 36 | // Linux Proc Status |
| 37 | // it's stored as an ascii string in the file |
| 38 | std::optional<LinuxProcStatus> |
| 39 | LinuxProcStatus::Parse(llvm::ArrayRef<uint8_t> &data) { |
| 40 | LinuxProcStatus result; |
| 41 | result.proc_status = |
| 42 | llvm::StringRef(reinterpret_cast<const char *>(data.data()), data.size()); |
| 43 | data = data.drop_front(N: data.size()); |
| 44 | |
| 45 | llvm::SmallVector<llvm::StringRef, 0> lines; |
| 46 | result.proc_status.split(A&: lines, Separator: '\n', MaxSplit: 42); |
| 47 | // /proc/$pid/status has 41 lines, but why not use 42? |
| 48 | for (auto line : lines) { |
| 49 | if (line.consume_front(Prefix: "Pid:")) { |
| 50 | line = line.trim(); |
| 51 | if (!line.getAsInteger(Radix: 10, Result&: result.pid)) |
| 52 | return result; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | return std::nullopt; |
| 57 | } |
| 58 | |
| 59 | lldb::pid_t LinuxProcStatus::GetPid() const { return pid; } |
| 60 |