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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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libc/calls/strace.internal.h
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@ -28,6 +28,7 @@ const char *__strace_sigaction(char *, size_t, int, const struct sigaction *);
const char *__strace_sigset(char[41], size_t, int, const sigset_t *);
const char *__strace_rlimit_name(int);
const char *__strace_rlimit(char[41], size_t, int, const struct rlimit *);
const char *__strace_timespec(char[45], size_t, int, const struct timespec *);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */