diff options
Diffstat (limited to 'contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp')
| -rw-r--r-- | contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp b/contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp new file mode 100644 index 000000000000..3f25dbc6abbb --- /dev/null +++ b/contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp @@ -0,0 +1,143 @@ +//===-- 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 +} |