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Make signal handling work well across platforms

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- Fix sigsuspend() on XNU
- Fix strsignal() on non-Linux
- Add unit tests for strsignal()
- Add unit tests for setitimer()
- Add unit tests for sigsuspend()
- Rewrite setitimer() for New Technology
- Rewrite nanosleep() for New Technology
- Polyfill SIGALRM on the New Technology
- select(0,0,0,0) on NT now calls pause()
- Remove some NTDLL calls that aren't needed
- Polyfill SA_NOCLDWAIT on the New Technology
- Polyfill SA_RESETHAND on the New Technology
- Polyfill sigprocmask() on the New Technology
- Polyfill SIGCHLD+SIG_IGN on the New Technology
- Polyfill SA_RESTART masking on the New Technology
- Deliver console signals from main thread on New Technology
- Document SA_RESTART behavior w/ @sarestartable / @norestart
- System call trace in MODE=dbg now prints inherited FDs and signal mask
This commit is contained in:
Justine Tunney 2022-03-25 07:11:44 -07:00
parent 3b9e66ecba
commit 072e1d2910
82 changed files with 1388 additions and 450 deletions
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37
libc/sysv/consts/sig.h
View file

@ -53,43 +53,44 @@ COSMOPOLITAN_C_END_
#define SIGABRT LITERALLY(6)
#define SIGALRM LITERALLY(14)
#define SIGBUS SYMBOLIC(SIGBUS)
#define SIGCHLD SYMBOLIC(SIGCHLD)
#define SIGCONT SYMBOLIC(SIGCONT)
#define SIGEMT SYMBOLIC(SIGEMT)
#define SIGFPE LITERALLY(8)
#define SIGHUP LITERALLY(1)
#define SIGILL LITERALLY(4)
#define SIGINFO SYMBOLIC(SIGINFO)
#define SIGINT LITERALLY(2)
#define SIGIO SYMBOLIC(SIGIO)
#define SIGIOT LITERALLY(6)
#define SIGKILL LITERALLY(9)
#define SIGPIPE LITERALLY(13)
#define SIGPOLL SYMBOLIC(SIGPOLL)
#define SIGPROF LITERALLY(27)
#define SIGPWR SYMBOLIC(SIGPWR)
#define SIGQUIT LITERALLY(3)
#define SIGRTMAX SYMBOLIC(SIGRTMAX)
#define SIGRTMIN SYMBOLIC(SIGRTMIN)
#define SIGSEGV LITERALLY(11)
#define SIGSTKFLT SYMBOLIC(SIGSTKFLT)
#define SIGSTOP SYMBOLIC(SIGSTOP)
#define SIGSYS SYMBOLIC(SIGSYS)
#define SIGTERM LITERALLY(15)
#define SIGTRAP LITERALLY(5)
#define SIGTSTP SYMBOLIC(SIGTSTP)
#define SIGTTIN LITERALLY(21)
#define SIGTTOU LITERALLY(22)
#define SIGUNUSED SYMBOLIC(SIGUNUSED)
#define SIGURG SYMBOLIC(SIGURG)
#define SIGUSR1 SYMBOLIC(SIGUSR1)
#define SIGUSR2 SYMBOLIC(SIGUSR2)
#define SIGVTALRM LITERALLY(26)
#define SIGWINCH LITERALLY(28)
#define SIGXCPU LITERALLY(24)
#define SIGXFSZ LITERALLY(25)
#define SIGBUS SYMBOLIC(SIGBUS)
#define SIGCHLD SYMBOLIC(SIGCHLD)
#define SIGCONT SYMBOLIC(SIGCONT)
#define SIGEMT SYMBOLIC(SIGEMT)
#define SIGINFO SYMBOLIC(SIGINFO)
#define SIGIO SYMBOLIC(SIGIO)
#define SIGPOLL SYMBOLIC(SIGPOLL)
#define SIGPWR SYMBOLIC(SIGPWR)
#define SIGRTMAX SYMBOLIC(SIGRTMAX)
#define SIGRTMIN SYMBOLIC(SIGRTMIN)
#define SIGSTKFLT SYMBOLIC(SIGSTKFLT)
#define SIGSTOP SYMBOLIC(SIGSTOP)
#define SIGSYS SYMBOLIC(SIGSYS)
#define SIGTSTP SYMBOLIC(SIGTSTP)
#define SIGUNUSED SYMBOLIC(SIGUNUSED)
#define SIGURG SYMBOLIC(SIGURG)
#define SIGUSR1 SYMBOLIC(SIGUSR1)
#define SIGUSR2 SYMBOLIC(SIGUSR2)
#define SIG_ATOMIC_MIN SYMBOLIC(SIG_ATOMIC_MIN)
#define SIG_BLOCK SYMBOLIC(SIG_BLOCK)
#define SIG_SETMASK SYMBOLIC(SIG_SETMASK)