1//===-- CrashReason.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 "CrashReason.h"
10
11#include "lldb/Target/UnixSignals.h"
12
13std::string GetCrashReasonString(const siginfo_t &info) {
14#if defined(si_lower) && defined(si_upper)
15  std::optional<lldb::addr_t> lower =
16      reinterpret_cast<lldb::addr_t>(info.si_lower);
17  std::optional<lldb::addr_t> upper =
18      reinterpret_cast<lldb::addr_t>(info.si_upper);
19#else
20  std::optional<lldb::addr_t> lower;
21  std::optional<lldb::addr_t> upper;
22#endif
23
24  std::string description =
25      lldb_private::UnixSignals::CreateForHost()->GetSignalDescription(
26          info.si_signo, info.si_code,
27          reinterpret_cast<uintptr_t>(info.si_addr), lower, upper);
28  assert(description.size() && "unexpected signal");
29
30  return "signal " + description;
31}
32