SIGEMT
From Wikipedia, the free encyclopedia
| Description: | Emulator trap |
|---|---|
| Default action: | Abnormal termination of the process |
| SA_SIGINFO macros | |
| None | |
On some Unix-like platforms, SIGEMT is the signal sent to computer programs when an emulator trap occurs. The symbolic constant for SIGEMT is defined in signal.h. Symbolic signal names are used because signal numbers can vary across platforms.
[edit] Etymology
SIG is a common prefix for signal names. EMT is an abbreviation for emulator trap; it is the name of an instruction on the highly influential PDP-11 architecture.
[edit] Usage
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Please help improve this article by expanding this section. Further information might be found on the talk page or at requests for expansion. Please remove this message once the section has been expanded. This article has been tagged since January 2007. |
On the PDP-11 architecture, EMT, TRAP, BPT and IOT were instructions used for program traps. EMT was for system software, TRAP for programmer use, BPT for debugging, and IOT for I/O routines. Currently EMT does not have a standardised usage.
Solaris sends SIGEMT to new lightweight processes to enable them to reset hardware performance counters.[1]
[edit] References
- ^ cpc_bind_curlwp(3CPC). Solaris man pages. Sun Microsystems, Inc. (October 26, 2005). Retrieved on 2007-01-24.
| POSIX Signals |
| SIGABRT | SIGALRM | SIGFPE | SIGHUP | SIGILL | SIGINT | SIGKILL | SIGPIPE | SIGQUIT | SIGSEGV | SIGTERM | SIGUSR1 | SIGUSR2 | SIGCHLD | SIGCONT | SIGSTOP | SIGTSTP | SIGTTIN | SIGTTOU | SIGBUS | SIGPOLL | SIGPROF | SIGSYS | SIGTRAP | SIGURG | SIGVTALRM | SIGXCPU | SIGXFSZ | Realtime Signals are user definable—SIGRTMIN+n through SIGRTMAX. |
| Common non-POSIX signals and synonyms |
| SIGIOT | SIGEMT | SIGSTKFLT | SIGIO | SIGCLD | SIGINFO | SIGPWR (SIGINFO) | SIGLOST | SIGWINCH | SIGUNUSED |
