Enrico Fraccaroli
49 lines
2.7 KiB
Markdown
49 lines
2.7 KiB
Markdown
# Signal
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## Legenda
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The **first column** of the table represent the implementation status,
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specifically:
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1. Implemented
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2. Tested
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If the column is empty it means that it's not implemented yet.
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## Implementation Status
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```
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S | Number | Signal | Standard | Action | Comment
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---+--------+-----------+----------+--------+------------------------------
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| 1 | SIGHUP | P1990 | Term | Hangup detected on controlling terminal or death of controlling process
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| 2 | SIGINT | P1990 | Term | Interrupt from keyboard
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| 3 | SIGQUIT | P1990 | Core | Quit from keyboard
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| 4 | SIGILL | P1990 | Core | Illegal Instruction
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| 5 | SIGTRAP | P2001 | Core | Trace/breakpoint trap
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2 | 6 | SIGABRT | P1990 | Core | Abort signal from abort(3)
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| 7 | SIGEMT | - | Term | Emulator trap
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2 | 8 | SIGFPE | P1990 | Core | Floating-point exception
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2 | 9 | SIGKILL | P1990 | Term | Kill signal
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| 10 | SIGBUS | P2001 | Core | Bus error (bad memory access)
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| 11 | SIGSEGV | P1990 | Core | Invalid memory reference
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| 12 | SIGSYS | P2001 | Core | Bad system call (SVr4); see also seccomp(2)
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| 13 | SIGPIPE | P1990 | Term | Broken pipe: write to pipe with no readers; see pipe(7)
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2 | 14 | SIGALRM | P1990 | Term | Timer signal from alarm(2)
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2 | 15 | SIGTERM | P1990 | Term | Termination signal
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2 | 16 | SIGUSR1 | P1990 | Term | User-defined signal 1
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2 | 17 | SIGUSR2 | P1990 | Term | User-defined signal 2
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1 | 18 | SIGCHLD | P1990 | Ign | Child stopped or terminated
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| 19 | SIGPWR | - | Term | Power failure (System V)
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| 20 | SIGWINCH | - | Ign | Window resize signal (4.3BSD, Sun)
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| 21 | SIGURG | P2001 | Ign | Urgent condition on socket (4.2BSD)
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| 22 | SIGPOLL | P2001 | Term | Pollable event (Sys V); synonym for SIGIO
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2 | 23 | SIGSTOP | P1990 | Stop | Stop process
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| 24 | SIGTSTP | P1990 | Stop | Stop typed at terminal
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2 | 25 | SIGCONT | P1990 | Cont | Continue if stopped
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| 26 | SIGTTIN | P1990 | Stop | Terminal input for background process
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| 27 | SIGTTOU | P1990 | Stop | Terminal output for background process
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| 28 | SIGVTALRM | P2001 | Term | Virtual alarm clock (4.2BSD)
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2 | 29 | SIGPROF | P2001 | Term | Profiling timer expired
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| 30 | SIGXCPU | P2001 | Core | CPU time limit exceeded (4.2BSD); see setrlimit(2)
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| 31 | SIGXFSZ | P2001 | Core | File size limit exceeded (4.2BSD); see setrlimit(2)
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``` |