| Signal | Description | Default Action |
| SIGABRT
| Generated by the abort system call (POSIX) | Process terminates and dumps core |
| SIGALRM
| A timer signal generated by the alarm system call (POSIX) | Process terminates |
| SIGBUS
| Process attempted to use mis-or unaligned memory (4.2 BSD) | Process terminates and dumps core. |
| SIGCHLD
| A child has stopped or terminated (POSIX) | Ignore |
| SIGCONT
| Process continues if it is stopped (POSIX) | Continue (ignore if process is not stopped) |
| SIGEMT
| Bus (hardware) error | Process terminates and dumps core |
| SIGFPE
| Floating-point exception (POSIX) | Process terminates and dumps core |
| SIGHUP
| Process received a hang-up on its controlling terminal or its controlling process died | Process terminates |
| SIGILL
| Illegal instruction (POSIX) | Process terminates and dumps core |
| SIGINFO
| The same as SIGPWR | Ignore |
| SIGINT
| User generated a keyboard interrupt (POSIX) | Process terminates |
| SIGIO
| Asynchronous I/O received (4.2 BSD) | Ignore |
| SIGIOT
| I/O trap. Same as SIGABRT (4.2 BSD) | Process terminates and dumps core |
| SIGKILL
| Kill (POSIX) | Process terminates, cannot catch or ignore |
| SIGLOST | Process lost a file lock | Process terminates |
| SIGPIPE
| Process attempted to write to a pipe with no readers (POSIX) | Process terminates |
| SIGPOLL
| Pollable event occured (System V) | Process terminates |
| SIGPROF
| Profiling alarm clock set on a segment of code expired (4.2 BSD) | Process terminates |
| SIGPWR | System detected a power failure (System V) | Ignore |
|
|
|
|
| SIGQUIT
| User generated a keyboard quit (POSIX) | Process terminates and dumps core |
| SIGSEGV
| Process attempted to reference inaccessible memory (POSIX) | Process terminates and dumps core |
| SIGSTKFLT
| Process generated a stack fault ("blew the stack") | Process terminates |
| SIGSTOP | Stop signal (POSIX) | Stop, cannot catch or ignore |
| SIGSYS
| Bad argument to routine | Process terminates and dumps core |
| SIGTERM
| Process received a termination signal (POSIX) | Process terminates |
| SIGTRAP
| Process hit a trace or breakpoint trap (usually during debugging) (POSIX) | Process terminates and dumps core |
| SIGTSTP
| User generated a stop from the keyboard (POSIX) | Stop |
| SIGTTIN
| Process attempted to read from stdin while running in the background (POSIX) | Stop |
| SIGTTOU
| Process attempted to write Stop to stdout while running in the background (POSIX) |
|
| SIGUNUSED | Unused signal | Process terminates |
| SIGURG
| Urgent condition on socket (4.2 BSD) | Ignore |
| SIGUSR1 | User-defined signal 1 (POSIX) | Process terminates |
| SIGUSR2
| User-defined signal 2 (POSIX) | Process terminates |
| SIGVTALRM
| Interval alarm clock expired (4.2 BSD) | Process terminates |
| SIGWINCH
| The size of a terminal window changed (4.3 BSD, Sun) | Ignore |
| SIGXCPU
| Process exceeded the amount of CPU time it can use (4.2 BSD) | Process terminates and dumps core |
| SIGXFSZ
| Process tried to access or manipulate a file larger than the syste file size limit (4.2 BSD) | Process terminates and dumps core
|
bits/signum.h
No comments:
Post a Comment