//===-- 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 #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 }