| //===-- LinuxSignals.cpp --------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "LinuxSignals.h" |
| |
| #ifdef __linux__ |
| #include <csignal> |
| |
| #ifndef SEGV_BNDERR |
| #define SEGV_BNDERR 3 |
| #endif |
| #ifndef SEGV_MTEAERR |
| #define SEGV_MTEAERR 8 |
| #endif |
| #ifndef SEGV_MTESERR |
| #define SEGV_MTESERR 9 |
| #endif |
| |
| #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...) \ |
| static_assert(signal_name == signal_value, \ |
| "Value mismatch for signal number " #signal_name); \ |
| static_assert(code_name == code_value, \ |
| "Value mismatch for signal code " #code_name); \ |
| AddSignalCode(signal_value, code_value, __VA_ARGS__) |
| #else |
| #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...) \ |
| AddSignalCode(signal_value, code_value, __VA_ARGS__) |
| #endif /* ifdef __linux__ */ |
| |
| using namespace lldb_private; |
| |
| LinuxSignals::LinuxSignals() : UnixSignals() { Reset(); } |
| |
| void LinuxSignals::Reset() { |
| m_signals.clear(); |
| // clang-format off |
| // SIGNO NAME SUPPRESS STOP NOTIFY DESCRIPTION |
| // ====== ============== ======== ====== ====== =================================================== |
| AddSignal(1, "SIGHUP", false, true, true, "hangup"); |
| AddSignal(2, "SIGINT", true, true, true, "interrupt"); |
| AddSignal(3, "SIGQUIT", false, true, true, "quit"); |
| |
| AddSignal(4, "SIGILL", false, true, true, "illegal instruction"); |
| ADD_SIGCODE(SIGILL, 4, ILL_ILLOPC, 1, "illegal opcode"); |
| ADD_SIGCODE(SIGILL, 4, ILL_ILLOPN, 2, "illegal operand"); |
| ADD_SIGCODE(SIGILL, 4, ILL_ILLADR, 3, "illegal addressing mode"); |
| ADD_SIGCODE(SIGILL, 4, ILL_ILLTRP, 4, "illegal trap"); |
| ADD_SIGCODE(SIGILL, 4, ILL_PRVOPC, 5, "privileged opcode"); |
| ADD_SIGCODE(SIGILL, 4, ILL_PRVREG, 6, "privileged register"); |
| ADD_SIGCODE(SIGILL, 4, ILL_COPROC, 7, "coprocessor error"); |
| ADD_SIGCODE(SIGILL, 4, ILL_BADSTK, 8, "internal stack error"); |
| |
| AddSignal(5, "SIGTRAP", true, true, true, "trace trap (not reset when caught)"); |
| AddSignal(6, "SIGABRT", false, true, true, "abort()/IOT trap", "SIGIOT"); |
| |
| AddSignal(7, "SIGBUS", false, true, true, "bus error"); |
| ADD_SIGCODE(SIGBUS, 7, BUS_ADRALN, 1, "illegal alignment"); |
| ADD_SIGCODE(SIGBUS, 7, BUS_ADRERR, 2, "illegal address"); |
| ADD_SIGCODE(SIGBUS, 7, BUS_OBJERR, 3, "hardware error"); |
| |
| AddSignal(8, "SIGFPE", false, true, true, "floating point exception"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_INTDIV, 1, "integer divide by zero"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_INTOVF, 2, "integer overflow"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTDIV, 3, "floating point divide by zero"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTOVF, 4, "floating point overflow"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTUND, 5, "floating point underflow"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTRES, 6, "floating point inexact result"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTINV, 7, "floating point invalid operation"); |
| ADD_SIGCODE(SIGFPE, 8, FPE_FLTSUB, 8, "subscript out of range"); |
| |
| AddSignal(9, "SIGKILL", false, true, true, "kill"); |
| AddSignal(10, "SIGUSR1", false, true, true, "user defined signal 1"); |
| |
| AddSignal(11, "SIGSEGV", false, true, true, "segmentation violation"); |
| ADD_SIGCODE(SIGSEGV, 11, SEGV_MAPERR, 1, "address not mapped to object", SignalCodePrintOption::Address); |
| ADD_SIGCODE(SIGSEGV, 11, SEGV_ACCERR, 2, "invalid permissions for mapped object", SignalCodePrintOption::Address); |
| ADD_SIGCODE(SIGSEGV, 11, SEGV_BNDERR, 3, "failed address bounds checks", SignalCodePrintOption::Bounds); |
| ADD_SIGCODE(SIGSEGV, 11, SEGV_MTEAERR, 8, "async tag check fault"); |
| ADD_SIGCODE(SIGSEGV, 11, SEGV_MTESERR, 9, "sync tag check fault", SignalCodePrintOption::Address); |
| // Some platforms will occasionally send nonstandard spurious SI_KERNEL |
| // codes. One way to get this is via unaligned SIMD loads. Treat it as invalid address. |
| ADD_SIGCODE(SIGSEGV, 11, SI_KERNEL, 0x80, "invalid address", SignalCodePrintOption::Address); |
| |
| AddSignal(12, "SIGUSR2", false, true, true, "user defined signal 2"); |
| AddSignal(13, "SIGPIPE", false, true, true, "write to pipe with reading end closed"); |
| AddSignal(14, "SIGALRM", false, false, false, "alarm"); |
| AddSignal(15, "SIGTERM", false, true, true, "termination requested"); |
| AddSignal(16, "SIGSTKFLT", false, true, true, "stack fault"); |
| AddSignal(17, "SIGCHLD", false, false, true, "child status has changed", "SIGCLD"); |
| AddSignal(18, "SIGCONT", false, false, true, "process continue"); |
| AddSignal(19, "SIGSTOP", true, true, true, "process stop"); |
| AddSignal(20, "SIGTSTP", false, true, true, "tty stop"); |
| AddSignal(21, "SIGTTIN", false, true, true, "background tty read"); |
| AddSignal(22, "SIGTTOU", false, true, true, "background tty write"); |
| AddSignal(23, "SIGURG", false, true, true, "urgent data on socket"); |
| AddSignal(24, "SIGXCPU", false, true, true, "CPU resource exceeded"); |
| AddSignal(25, "SIGXFSZ", false, true, true, "file size limit exceeded"); |
| AddSignal(26, "SIGVTALRM", false, true, true, "virtual time alarm"); |
| AddSignal(27, "SIGPROF", false, false, false, "profiling time alarm"); |
| AddSignal(28, "SIGWINCH", false, true, true, "window size changes"); |
| AddSignal(29, "SIGIO", false, true, true, "input/output ready/Pollable event", "SIGPOLL"); |
| AddSignal(30, "SIGPWR", false, true, true, "power failure"); |
| AddSignal(31, "SIGSYS", false, true, true, "invalid system call"); |
| AddSignal(32, "SIG32", false, false, false, "threading library internal signal 1"); |
| AddSignal(33, "SIG33", false, false, false, "threading library internal signal 2"); |
| AddSignal(34, "SIGRTMIN", false, false, false, "real time signal 0"); |
| AddSignal(35, "SIGRTMIN+1", false, false, false, "real time signal 1"); |
| AddSignal(36, "SIGRTMIN+2", false, false, false, "real time signal 2"); |
| AddSignal(37, "SIGRTMIN+3", false, false, false, "real time signal 3"); |
| AddSignal(38, "SIGRTMIN+4", false, false, false, "real time signal 4"); |
| AddSignal(39, "SIGRTMIN+5", false, false, false, "real time signal 5"); |
| AddSignal(40, "SIGRTMIN+6", false, false, false, "real time signal 6"); |
| AddSignal(41, "SIGRTMIN+7", false, false, false, "real time signal 7"); |
| AddSignal(42, "SIGRTMIN+8", false, false, false, "real time signal 8"); |
| AddSignal(43, "SIGRTMIN+9", false, false, false, "real time signal 9"); |
| AddSignal(44, "SIGRTMIN+10", false, false, false, "real time signal 10"); |
| AddSignal(45, "SIGRTMIN+11", false, false, false, "real time signal 11"); |
| AddSignal(46, "SIGRTMIN+12", false, false, false, "real time signal 12"); |
| AddSignal(47, "SIGRTMIN+13", false, false, false, "real time signal 13"); |
| AddSignal(48, "SIGRTMIN+14", false, false, false, "real time signal 14"); |
| AddSignal(49, "SIGRTMIN+15", false, false, false, "real time signal 15"); |
| AddSignal(50, "SIGRTMAX-14", false, false, false, "real time signal 16"); // switching to SIGRTMAX-xxx to match "kill -l" output |
| AddSignal(51, "SIGRTMAX-13", false, false, false, "real time signal 17"); |
| AddSignal(52, "SIGRTMAX-12", false, false, false, "real time signal 18"); |
| AddSignal(53, "SIGRTMAX-11", false, false, false, "real time signal 19"); |
| AddSignal(54, "SIGRTMAX-10", false, false, false, "real time signal 20"); |
| AddSignal(55, "SIGRTMAX-9", false, false, false, "real time signal 21"); |
| AddSignal(56, "SIGRTMAX-8", false, false, false, "real time signal 22"); |
| AddSignal(57, "SIGRTMAX-7", false, false, false, "real time signal 23"); |
| AddSignal(58, "SIGRTMAX-6", false, false, false, "real time signal 24"); |
| AddSignal(59, "SIGRTMAX-5", false, false, false, "real time signal 25"); |
| AddSignal(60, "SIGRTMAX-4", false, false, false, "real time signal 26"); |
| AddSignal(61, "SIGRTMAX-3", false, false, false, "real time signal 27"); |
| AddSignal(62, "SIGRTMAX-2", false, false, false, "real time signal 28"); |
| AddSignal(63, "SIGRTMAX-1", false, false, false, "real time signal 29"); |
| AddSignal(64, "SIGRTMAX", false, false, false, "real time signal 30"); |
| // clang-format on |
| } |
