lldb/source/Plugins/Process/Utility/OpenBSDSignals.cpp

   1 //===-- OpenBSDSignals.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 "OpenBSDSignals.h"
  10
  11 #ifdef __OpenBSD__
  12 #include <csignal>
  13
  14 #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...)     \
  15   static_assert(signal_name == signal_value,                                   \
  16                 "Value mismatch for signal number " #signal_name);             \
  17   static_assert(code_name == code_value,                                       \
  18                 "Value mismatch for signal code " #code_name);                 \
  19   AddSignalCode(signal_value, code_value, __VA_ARGS__)
  20 #else
  21 #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...)     \
  22   AddSignalCode(signal_value, code_value, __VA_ARGS__)
  23 #endif /* ifdef __OpenBSD */
  24
  25 using namespace lldb_private;
  26
  27 OpenBSDSignals::OpenBSDSignals() : UnixSignals() { Reset(); }
  28
  29 void OpenBSDSignals::Reset() {
  30   UnixSignals::Reset();
  31
  32   // clang-format off
  33   // SIGILL
  34   ADD_SIGCODE(SIGILL, 4, ILL_ILLOPC, 1, "illegal opcode");
  35   ADD_SIGCODE(SIGILL, 4, ILL_ILLOPN, 2, "illegal operand");
  36   ADD_SIGCODE(SIGILL, 4, ILL_ILLADR, 3, "illegal addressing mode");
  37   ADD_SIGCODE(SIGILL, 4, ILL_ILLTRP, 4, "illegal trap");
  38   ADD_SIGCODE(SIGILL, 4, ILL_PRVOPC, 5, "privileged opcode");
  39   ADD_SIGCODE(SIGILL, 4, ILL_PRVREG, 6, "privileged register");
  40   ADD_SIGCODE(SIGILL, 4, ILL_COPROC, 7, "coprocessor error");
  41   ADD_SIGCODE(SIGILL, 4, ILL_BADSTK, 8, "internal stack error");
  42   ADD_SIGCODE(SIGILL, 4, ILL_BTCFI,  9, "IBT missing on indirect call");
  43
  44   // SIGFPE
  45   ADD_SIGCODE(SIGFPE, 8, FPE_INTDIV, 1, "integer divide by zero");
  46   ADD_SIGCODE(SIGFPE, 8, FPE_INTOVF, 2, "integer overflow");
  47   ADD_SIGCODE(SIGFPE, 8, FPE_FLTDIV, 3, "floating point divide by zero");
  48   ADD_SIGCODE(SIGFPE, 8, FPE_FLTOVF, 4, "floating point overflow");
  49   ADD_SIGCODE(SIGFPE, 8, FPE_FLTUND, 5, "floating point underflow");
  50   ADD_SIGCODE(SIGFPE, 8, FPE_FLTRES, 6, "floating point inexact result");
  51   ADD_SIGCODE(SIGFPE, 8, FPE_FLTINV, 7, "invalid floating point operation");
  52   ADD_SIGCODE(SIGFPE, 8, FPE_FLTSUB, 8, "subscript out of range");
  53
  54   // SIGBUS
  55   ADD_SIGCODE(SIGBUS, 10, BUS_ADRALN, 1, "invalid address alignment");
  56   ADD_SIGCODE(SIGBUS, 10, BUS_ADRERR, 2, "non-existent physical address");
  57   ADD_SIGCODE(SIGBUS, 10, BUS_OBJERR, 3, "object specific hardware error");
  58
  59   // SIGSEGV
  60   ADD_SIGCODE(SIGSEGV, 11, SEGV_MAPERR, 1, "address not mapped to object",
  61                 SignalCodePrintOption::Address);
  62   ADD_SIGCODE(SIGSEGV, 11, SEGV_ACCERR, 2, "invalid permissions for mapped object",
  63                 SignalCodePrintOption::Address);
  64
  65   //        SIGNO NAME           SUPPRESS STOP   NOTIFY DESCRIPTION
  66   //        ===== ============== ======== ====== ====== ========================
  67   AddSignal(32,   "SIGTHR",      false,   false, false, "thread library AST");
  68   // clang-format on
  69 }