Coverage Report

Created: 2023-11-11 10:31

/Users/buildslave/jenkins/workspace/coverage/llvm-project/lldb/source/Plugins/Process/minidump/MinidumpTypes.cpp
Line
Count
Source (jump to first uncovered line)
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
64
const MinidumpMiscInfo *MinidumpMiscInfo::Parse(llvm::ArrayRef<uint8_t> &data) {
20
64
  const MinidumpMiscInfo *misc_info;
21
64
  Status error = consumeObject(data, misc_info);
22
64
  if (error.Fail())
23
0
    return nullptr;
24
25
64
  return misc_info;
26
64
}
27
28
64
std::optional<lldb::pid_t> MinidumpMiscInfo::GetPid() const {
29
64
  uint32_t pid_flag = static_cast<uint32_t>(MinidumpMiscInfoFlags::ProcessID);
30
64
  if (flags1 & pid_flag)
31
64
    return std::optional<lldb::pid_t>(process_id);
32
33
0
  return std::nullopt;
34
64
}
35
36
// Linux Proc Status
37
// it's stored as an ascii string in the file
38
std::optional<LinuxProcStatus>
39
22
LinuxProcStatus::Parse(llvm::ArrayRef<uint8_t> &data) {
40
22
  LinuxProcStatus result;
41
22
  result.proc_status =
42
22
      llvm::StringRef(reinterpret_cast<const char *>(data.data()), data.size());
43
22
  data = data.drop_front(data.size());
44
45
22
  llvm::SmallVector<llvm::StringRef, 0> lines;
46
22
  result.proc_status.split(lines, '\n', 42);
47
  // /proc/$pid/status has 41 lines, but why not use 42?
48
109
  for (auto line : lines) {
49
109
    if (line.consume_front("Pid:")) {
50
22
      line = line.trim();
51
22
      if (!line.getAsInteger(10, result.pid))
52
22
        return result;
53
22
    }
54
109
  }
55
56
0
  return std::nullopt;
57
22
}
58
59
22
lldb::pid_t LinuxProcStatus::GetPid() const { return pid; }
60
61
std::pair<llvm::ArrayRef<MinidumpMemoryDescriptor64>, uint64_t>
62
17
MinidumpMemoryDescriptor64::ParseMemory64List(llvm::ArrayRef<uint8_t> &data) {
63
17
  const llvm::support::ulittle64_t *mem_ranges_count;
64
17
  Status error = consumeObject(data, mem_ranges_count);
65
17
  if (error.Fail() ||
66
17
      *mem_ranges_count * sizeof(MinidumpMemoryDescriptor64) > data.size())
67
0
    return {};
68
69
17
  const llvm::support::ulittle64_t *base_rva;
70
17
  error = consumeObject(data, base_rva);
71
17
  if (error.Fail())
72
0
    return {};
73
74
17
  return std::make_pair(
75
17
      llvm::ArrayRef(
76
17
          reinterpret_cast<const MinidumpMemoryDescriptor64 *>(data.data()),
77
17
          *mem_ranges_count),
78
17
      *base_rva);
79
17
}