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 | 194 |
1 files changed, 126 insertions, 68 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 index 3f25dbc6abbb..5346babc1857 100644 --- a/contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp +++ b/contrib/llvm-project/lldb/source/Plugins/Process/Utility/LinuxSignals.cpp @@ -8,7 +8,11 @@ #include "LinuxSignals.h" -#ifdef __linux__ +// mips-linux debugging is not supported and mips uses different numbers for +// some signals (e.g. SIGBUS) on linux, so we skip the static checks below. The +// definitions here can be used for debugging non-mips targets on a mips-hosted +// lldb. +#if defined(__linux__) && !defined(__mips__) #include <csignal> #ifndef SEGV_BNDERR @@ -20,6 +24,33 @@ #ifndef SEGV_MTESERR #define SEGV_MTESERR 9 #endif +#ifndef SEGV_CPERR +#define SEGV_CPERR 10 +#endif +#ifndef SI_QUEUE +#define SI_QUEUE -1 +#endif +#ifndef SI_TIMER +#define SI_TIMER -2 +#endif +#ifndef SI_MESGQ +#define SI_MESGQ -3 +#endif +#ifndef SI_ASYNCIO +#define SI_ASYNCIO -4 +#endif +#ifndef SI_SIGIO +#define SI_SIGIO -5 +#endif +#ifndef SI_TKILL +#define SI_TKILL -6 +#endif +#ifndef SI_DETHREAD +#define SI_DETHREAD -7 +#endif +#ifndef SI_ASYNCNL +#define SI_ASYNCNL -60 +#endif #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...) \ static_assert(signal_name == signal_value, \ @@ -30,7 +61,33 @@ #else #define ADD_SIGCODE(signal_name, signal_value, code_name, code_value, ...) \ AddSignalCode(signal_value, code_value, __VA_ARGS__) -#endif /* ifdef __linux__ */ +#endif /* if defined(__linux__) && !defined(__mips__) */ +// See siginfo.h in the Linux Kernel, these codes can be sent for any signal. +#define ADD_LINUX_SIGNAL(signo, name, ...) \ + AddSignal(signo, name, __VA_ARGS__); \ + ADD_SIGCODE(signo, signo, SI_USER, 0, "sent by kill, sigsend or raise", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_KERNEL, 0x80, "sent by kernel (SI_KERNEL)", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_QUEUE, -1, "sent by sigqueue", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_TIMER, -2, "sent by timer expiration", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_MESGQ, -3, \ + "sent by real time mesq state change", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_ASYNCIO, -4, "sent by AIO completion", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_SIGIO, -5, "sent by queued SIGIO", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_TKILL, -6, "sent by tkill system call", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_DETHREAD, -7, \ + "sent by execve() killing subsidiary threads", \ + SignalCodePrintOption::Sender); \ + ADD_SIGCODE(signo, signo, SI_ASYNCNL, -60, \ + "sent by glibc async name lookup completion", \ + SignalCodePrintOption::Sender); using namespace lldb_private; @@ -39,13 +96,13 @@ 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"); + // SIGNO NAME SUPPRESS STOP NOTIFY DESCRIPTION + // ====== ============== ======== ====== ====== =================================================== + ADD_LINUX_SIGNAL(1, "SIGHUP", false, true, true, "hangup"); + ADD_LINUX_SIGNAL(2, "SIGINT", true, true, true, "interrupt"); + ADD_LINUX_SIGNAL(3, "SIGQUIT", false, true, true, "quit"); - AddSignal(4, "SIGILL", false, true, true, "illegal instruction"); + ADD_LINUX_SIGNAL(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"); @@ -55,15 +112,15 @@ void LinuxSignals::Reset() { 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"); + ADD_LINUX_SIGNAL(5, "SIGTRAP", true, true, true, "trace trap (not reset when caught)"); + ADD_LINUX_SIGNAL(6, "SIGABRT", false, true, true, "abort()/IOT trap", "SIGIOT"); - AddSignal(7, "SIGBUS", false, true, true, "bus error"); + ADD_LINUX_SIGNAL(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_LINUX_SIGNAL(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"); @@ -73,71 +130,72 @@ void LinuxSignals::Reset() { 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"); + ADD_LINUX_SIGNAL(9, "SIGKILL", false, true, true, "kill"); + ADD_LINUX_SIGNAL(10, "SIGUSR1", false, true, true, "user defined signal 1"); - AddSignal(11, "SIGSEGV", false, true, true, "segmentation violation"); + ADD_LINUX_SIGNAL(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); + ADD_SIGCODE(SIGSEGV, 11, SEGV_CPERR, 10, "control protection fault"); // 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"); + ADD_LINUX_SIGNAL(12, "SIGUSR2", false, true, true, "user defined signal 2"); + ADD_LINUX_SIGNAL(13, "SIGPIPE", false, true, true, "write to pipe with reading end closed"); + ADD_LINUX_SIGNAL(14, "SIGALRM", false, false, false, "alarm"); + ADD_LINUX_SIGNAL(15, "SIGTERM", false, true, true, "termination requested"); + ADD_LINUX_SIGNAL(16, "SIGSTKFLT", false, true, true, "stack fault"); + ADD_LINUX_SIGNAL(17, "SIGCHLD", false, false, true, "child status has changed", "SIGCLD"); + ADD_LINUX_SIGNAL(18, "SIGCONT", false, false, true, "process continue"); + ADD_LINUX_SIGNAL(19, "SIGSTOP", true, true, true, "process stop"); + ADD_LINUX_SIGNAL(20, "SIGTSTP", false, true, true, "tty stop"); + ADD_LINUX_SIGNAL(21, "SIGTTIN", false, true, true, "background tty read"); + ADD_LINUX_SIGNAL(22, "SIGTTOU", false, true, true, "background tty write"); + ADD_LINUX_SIGNAL(23, "SIGURG", false, true, true, "urgent data on socket"); + ADD_LINUX_SIGNAL(24, "SIGXCPU", false, true, true, "CPU resource exceeded"); + ADD_LINUX_SIGNAL(25, "SIGXFSZ", false, true, true, "file size limit exceeded"); + ADD_LINUX_SIGNAL(26, "SIGVTALRM", false, true, true, "virtual time alarm"); + ADD_LINUX_SIGNAL(27, "SIGPROF", false, false, false, "profiling time alarm"); + ADD_LINUX_SIGNAL(28, "SIGWINCH", false, true, true, "window size changes"); + ADD_LINUX_SIGNAL(29, "SIGIO", false, true, true, "input/output ready/Pollable event", "SIGPOLL"); + ADD_LINUX_SIGNAL(30, "SIGPWR", false, true, true, "power failure"); + ADD_LINUX_SIGNAL(31, "SIGSYS", false, true, true, "invalid system call"); + ADD_LINUX_SIGNAL(32, "SIG32", false, false, false, "threading library internal signal 1"); + ADD_LINUX_SIGNAL(33, "SIG33", false, false, false, "threading library internal signal 2"); + ADD_LINUX_SIGNAL(34, "SIGRTMIN", false, false, false, "real time signal 0"); + ADD_LINUX_SIGNAL(35, "SIGRTMIN+1", false, false, false, "real time signal 1"); + ADD_LINUX_SIGNAL(36, "SIGRTMIN+2", false, false, false, "real time signal 2"); + ADD_LINUX_SIGNAL(37, "SIGRTMIN+3", false, false, false, "real time signal 3"); + ADD_LINUX_SIGNAL(38, "SIGRTMIN+4", false, false, false, "real time signal 4"); + ADD_LINUX_SIGNAL(39, "SIGRTMIN+5", false, false, false, "real time signal 5"); + ADD_LINUX_SIGNAL(40, "SIGRTMIN+6", false, false, false, "real time signal 6"); + ADD_LINUX_SIGNAL(41, "SIGRTMIN+7", false, false, false, "real time signal 7"); + ADD_LINUX_SIGNAL(42, "SIGRTMIN+8", false, false, false, "real time signal 8"); + ADD_LINUX_SIGNAL(43, "SIGRTMIN+9", false, false, false, "real time signal 9"); + ADD_LINUX_SIGNAL(44, "SIGRTMIN+10", false, false, false, "real time signal 10"); + ADD_LINUX_SIGNAL(45, "SIGRTMIN+11", false, false, false, "real time signal 11"); + ADD_LINUX_SIGNAL(46, "SIGRTMIN+12", false, false, false, "real time signal 12"); + ADD_LINUX_SIGNAL(47, "SIGRTMIN+13", false, false, false, "real time signal 13"); + ADD_LINUX_SIGNAL(48, "SIGRTMIN+14", false, false, false, "real time signal 14"); + ADD_LINUX_SIGNAL(49, "SIGRTMIN+15", false, false, false, "real time signal 15"); + ADD_LINUX_SIGNAL(50, "SIGRTMAX-14", false, false, false, "real time signal 16"); // switching to SIGRTMAX-xxx to match "kill -l" output + ADD_LINUX_SIGNAL(51, "SIGRTMAX-13", false, false, false, "real time signal 17"); + ADD_LINUX_SIGNAL(52, "SIGRTMAX-12", false, false, false, "real time signal 18"); + ADD_LINUX_SIGNAL(53, "SIGRTMAX-11", false, false, false, "real time signal 19"); + ADD_LINUX_SIGNAL(54, "SIGRTMAX-10", false, false, false, "real time signal 20"); + ADD_LINUX_SIGNAL(55, "SIGRTMAX-9", false, false, false, "real time signal 21"); + ADD_LINUX_SIGNAL(56, "SIGRTMAX-8", false, false, false, "real time signal 22"); + ADD_LINUX_SIGNAL(57, "SIGRTMAX-7", false, false, false, "real time signal 23"); + ADD_LINUX_SIGNAL(58, "SIGRTMAX-6", false, false, false, "real time signal 24"); + ADD_LINUX_SIGNAL(59, "SIGRTMAX-5", false, false, false, "real time signal 25"); + ADD_LINUX_SIGNAL(60, "SIGRTMAX-4", false, false, false, "real time signal 26"); + ADD_LINUX_SIGNAL(61, "SIGRTMAX-3", false, false, false, "real time signal 27"); + ADD_LINUX_SIGNAL(62, "SIGRTMAX-2", false, false, false, "real time signal 28"); + ADD_LINUX_SIGNAL(63, "SIGRTMAX-1", false, false, false, "real time signal 29"); + ADD_LINUX_SIGNAL(64, "SIGRTMAX", false, false, false, "real time signal 30"); // clang-format on } |