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8141024: [Solaris] Obsolete UseAltSigs

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Reviewed-by: dcubed, ddmitriev
This commit is contained in:
David Holmes 2015-11-16 14:47:21 -05:00
parent 8c3a472f12
commit 56745a7f9f
4 changed files with 11 additions and 27 deletions
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19
hotspot/src/os/solaris/vm/os_solaris.cpp
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@ -997,9 +997,8 @@ bool os::create_thread(Thread* thread, ThreadType thr_type,
}
// defined for >= Solaris 10. This allows builds on earlier versions
// of Solaris to take advantage of the newly reserved Solaris JVM signals
// With SIGJVM1, SIGJVM2, ASYNC_SIGNAL is SIGJVM2 and -XX:+UseAltSigs does
// nothing since these should have no conflict. Previously INTERRUPT_SIGNAL
// of Solaris to take advantage of the newly reserved Solaris JVM signals.
// With SIGJVM1, SIGJVM2, ASYNC_SIGNAL is SIGJVM2. Previously INTERRUPT_SIGNAL
// was SIGJVM1.
//
#if !defined(SIGJVM1)
@ -1053,13 +1052,9 @@ void os::Solaris::signal_sets_init() {
sigaddset(&unblocked_sigs, SIGBUS);
sigaddset(&unblocked_sigs, SIGFPE);
if (isJVM1available) {
os::Solaris::set_SIGasync(SIGJVM2);
} else if (UseAltSigs) {
os::Solaris::set_SIGasync(ALT_ASYNC_SIGNAL);
} else {
os::Solaris::set_SIGasync(ASYNC_SIGNAL);
}
// Always true on Solaris 10+
guarantee(isJVM1available(), "SIGJVM1/2 missing!");
os::Solaris::set_SIGasync(SIGJVM2);
sigaddset(&unblocked_sigs, os::Solaris::SIGasync());
@ -3922,7 +3917,7 @@ void os::Solaris::set_signal_handler(int sig, bool set_installed,
// save the old handler in jvm
save_preinstalled_handler(sig, oldAct);
} else {
vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal, try -XX:+UseAltSigs.");
vm_exit_during_initialization("Signal chaining not allowed for VM interrupt signal.");
}
// libjsig also interposes the sigaction() call below and saves the
// old sigaction on it own.
@ -3991,7 +3986,7 @@ void os::run_periodic_checks() {
DO_SIGNAL_CHECK(BREAK_SIGNAL);
}
// See comments above for using JVM1/JVM2 and UseAltSigs
// See comments above for using JVM1/JVM2
DO_SIGNAL_CHECK(os::Solaris::SIGasync());
}