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Add more signals

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This commit is contained in:
Matthew Bauer 2022-09-03 16:06:33 -05:00
parent 102434e4cb
commit a47b5476e1
1 changed files with 14 additions and 3 deletions
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17
src/libmain/shared.cc
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@ -181,8 +181,9 @@ void initNix()
/* Reset SIGCHLD to its default. */ /* Reset SIGCHLD to its default. */
struct sigaction act; struct sigaction act;
sigemptyset(&act.sa_mask); sigemptyset(&act.sa_mask);
act.sa_handler = SIG_DFL;
act.sa_flags = 0; act.sa_flags = 0;
act.sa_handler = SIG_DFL;
if (sigaction(SIGCHLD, &act, 0)) if (sigaction(SIGCHLD, &act, 0))
throw SysError("resetting SIGCHLD"); throw SysError("resetting SIGCHLD");
@ -197,13 +198,23 @@ void initNix()
act.sa_handler = sigHandler; act.sa_handler = sigHandler;
if (sigaction(SIGWINCH, &act, 0)) throw SysError("handling SIGWINCH"); if (sigaction(SIGWINCH, &act, 0)) throw SysError("handling SIGWINCH");
// Disable SA_RESTART for interrupts, so that system calls on this thread /* Disable SA_RESTART for interrupts, so that system calls on this thread
// error with EINTR like they do on Linux, and we don’t hang forever. * error with EINTR like they do on Linux.
* Most signals on BSD systems default to SA_RESTART on, but Nix
* expects EINTR from syscalls to properly exit. */
act.sa_handler = SIG_DFL; act.sa_handler = SIG_DFL;
if (sigaction(SIGINT, &act, 0)) throw SysError("handling SIGINT"); if (sigaction(SIGINT, &act, 0)) throw SysError("handling SIGINT");
if (sigaction(SIGTERM, &act, 0)) throw SysError("handling SIGTERM"); if (sigaction(SIGTERM, &act, 0)) throw SysError("handling SIGTERM");
if (sigaction(SIGHUP, &act, 0)) throw SysError("handling SIGHUP"); if (sigaction(SIGHUP, &act, 0)) throw SysError("handling SIGHUP");
if (sigaction(SIGPIPE, &act, 0)) throw SysError("handling SIGPIPE"); if (sigaction(SIGPIPE, &act, 0)) throw SysError("handling SIGPIPE");
if (sigaction(SIGQUIT, &act, 0)) throw SysError("handling SIGQUIT");
if (sigaction(SIGILL, &act, 0)) throw SysError("handling SIGILL");
if (sigaction(SIGTRAP, &act, 0)) throw SysError("handling SIGTRAP");
if (sigaction(SIGABRT, &act, 0)) throw SysError("handling SIGABRT");
if (sigaction(SIGFPE, &act, 0)) throw SysError("handling SIGFPE");
if (sigaction(SIGBUS, &act, 0)) throw SysError("handling SIGBUS");
if (sigaction(SIGXCPU, &act, 0)) throw SysError("handling SIGXCPU");
if (sigaction(SIGXFSZ, &act, 0)) throw SysError("handling SIGXFSZ");
#endif #endif
/* Register a SIGSEGV handler to detect stack overflows. */ /* Register a SIGSEGV handler to detect stack overflows. */