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  • linux signal 信号表

    Signal Value Action Comment
    -------------------------------------------------------------------------
    SIGHUP 1 Term Hangup detected on controlling terminal
    or death of controlling process
    SIGINT 2 Term Interrupt from keyboard
    SIGQUIT 3 Core Quit from keyboard
    SIGILL 4 Core Illegal Instruction
    SIGABRT 6 Core Abort signal from abort(3)
    SIGFPE 8 Core Floating point exception
    SIGKILL 9 Term Kill signal
    SIGSEGV 11 Core Invalid memory reference
    SIGPIPE 13 Term Broken pipe: write to pipe with no readers
    SIGALRM 14 Term Timer signal from alarm(2)
    SIGTERM 15 Term Termination signal
    SIGUSR1 30,10,16 Term User-defined signal 1
    SIGUSR2 31,12,17 Term User-defined signal 2
    SIGCHLD 20,17,18 Ign Child stopped or terminated
    SIGCONT 19,18,25 Cont Continue if stopped
    SIGSTOP 17,19,23 Stop Stop process
    SIGTSTP 18,20,24 Stop Stop typed at tty
    SIGTTIN 21,21,26 Stop tty input for background process
    SIGTTOU 22,22,27 Stop tty output for background process

    SIGBUS 10,7,10 Core Bus error (bad memory access)
    SIGPOLL Term Pollable event (Sys V). Synonym of SIGIO
    SIGPROF 27,27,29 Term Profiling timer expired
    SIGSYS 12,-,12 Core Bad argument to routine (SVr4)
    SIGTRAP 5 Core Trace/breakpoint trap
    SIGURG 16,23,21 Ign Urgent condition on socket (4.2BSD)
    SIGVTALRM 26,26,28 Term Virtual alarm clock (4.2BSD)
    SIGXCPU 24,24,30 Core CPU time limit exceeded (4.2BSD)
    SIGXFSZ 25,25,31 Core File size limit exceeded (4.2BSD)

    SIGIOT 6 Core IOT trap. A synonym for SIGABRT
    SIGEMT 7,-,7 Term
    SIGSTKFLT -,16,- Term Stack fault on coprocessor (unused)
    SIGIO 23,29,22 Term I/O now possible (4.2BSD)
    SIGCLD -,-,18 Ign A synonym for SIGCHLD
    SIGPWR 29,30,19 Term Power failure (System V)
    SIGINFO 29,-,- A synonym for SIGPWR
    SIGLOST -,-,- Term File lock lost
    SIGWINCH 28,28,20 Ign Window resize signal (4.3BSD, Sun)
    SIGUNUSED -,31,- Term Unused signal (will be SIGSYS)

    (Signal 29 is SIGINFO / SIGPWR on an alpha but SIGLOST on a sparc.)

    SIGEMT is not specified in POSIX.1-2001, but nevertheless appears on most other Unices, where its default action is
    typically to terminate the process with a core dump.

    SIGPWR (which is not specified in POSIX.1-2001) is typically ignored by default on those other Unices where it
    appears.

    SIGIO (which is not specified in POSIX.1-2001) is ignored by default on several other Unices.

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  • 原文地址:https://www.cnblogs.com/jogger/p/2888710.html
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