diff options
| -rw-r--r-- | src/libmain/shared.cc | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc index 31454e49d..52b75f757 100644 --- a/src/libmain/shared.cc +++ b/src/libmain/shared.cc @@ -181,8 +181,9 @@ void initNix() /* Reset SIGCHLD to its default. */ struct sigaction act; sigemptyset(&act.sa_mask); - act.sa_handler = SIG_DFL; act.sa_flags = 0; + + act.sa_handler = SIG_DFL; if (sigaction(SIGCHLD, &act, 0)) throw SysError("resetting SIGCHLD"); @@ -194,9 +195,20 @@ void initNix() /* HACK: on darwin, we need can’t use sigprocmask with SIGWINCH. * Instead, add a dummy sigaction handler, and signalHandlerThread * can handle the rest. */ - struct sigaction sa; - sa.sa_handler = sigHandler; - if (sigaction(SIGWINCH, &sa, 0)) throw SysError("handling SIGWINCH"); + act.sa_handler = sigHandler; + if (sigaction(SIGWINCH, &act, 0)) throw SysError("handling SIGWINCH"); + + /* Disable SA_RESTART for interrupts, so that system calls on this thread + * 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; + if (sigaction(SIGINT, &act, 0)) throw SysError("handling SIGINT"); + if (sigaction(SIGTERM, &act, 0)) throw SysError("handling SIGTERM"); + if (sigaction(SIGHUP, &act, 0)) throw SysError("handling SIGHUP"); + if (sigaction(SIGPIPE, &act, 0)) throw SysError("handling SIGPIPE"); + if (sigaction(SIGQUIT, &act, 0)) throw SysError("handling SIGQUIT"); + if (sigaction(SIGTRAP, &act, 0)) throw SysError("handling SIGTRAP"); #endif /* Register a SIGSEGV handler to detect stack overflows. */ |