Cross Reference: /openjdk7/hotspot/src/os/linux/vm/os

Lines Matching defs:signal
95 # include <signal.h>
160 /* do not use any signal number less than SIGSEGV, see 4355769 */
522 // signal support
606   //Save caller's signal mask before setting VM signal mask
729 // Now alternate signal stack is gone, it's harder to use 2. For instance,
866   // initialize signal mask for this thread
1066   // initialize signal mask for this thread
1067   // and save the caller's signal mask
1086     // Restore caller's signal mask
1180   //   SuSE 7.2, Debian) can not handle alternate signal stack correctly
1183   // FIXME: alt signal stack is gone, maybe we can relax this constraint?
1554 // called from signal handler. Before adding something to os::shutdown(), make
1576 // called from signal handler. Before adding something to os::abort(), make
2445     void signal();
2462 void Semaphore::signal() {
2497 void* os::signal(int signal_number, void* handler) {
2521 // Will be modified when max signal is changed to be dynamic
2526 // a counter for each possible signal value
2534   // Initialize signal structures
2537   // Initialize signal semaphore
3519 // generates a SIGUSRx signal. Note that SIGUSR1 can interfere with
3710 //  the low-level signal-based suspend/resume support is a remnant from the
3720 //      - sends a signal to the target thread
3722 //      - target thread signal handler (SR_handler) sets suspend state
3726 //      - sends signal to end the sigsuspend loop in the SR_handler
3748 // interface point of view, but sigwait() prevents the signal hander
3750 // its signal handlers run and prevents sigwait()'s use with the
3751 // mutex granting granting signal.
3773       // get current set of blocked signals and unblock resume signal
3777       sr_semaphore.signal();
3784           sr_semaphore.signal();
3811   /* Get signal number to use for suspend/resume */
3825   /* Set up signal handler for suspend/resume */
3830   // 4528190 - We also need to block pthread restart signal (32 on all
3832   // this signal for all threads to work properly. So we don't have
3833   // to use hard-coded signal number when setting up the mask.
3840   // Save signal flag
3857 // we send a signal to a thread we want to resume
3867   // mark as suspended and send signal
3878   // managed to send the signal and switch to SUSPEND_REQUEST, now wait for SUSPENDED
3888         // make sure that we consume the signal on the semaphore as well
3972 // signal handling (except suspend/resume)
3975 // The user-defined signal handler must pass unrecognized signals to this
3976 // routine, and if it returns true (non-zero), then the signal handler must
3982 // the user-defined signal handler to perform checks either before or after
3996 // Note that the VM will print warnings if it detects conflicting signal
4013 // For signal-chaining
4024     // Retrieve the old signal handler from libjsig
4028     // Retrieve the preinstalled signal handler from jvm
4037   // Call the old signal handler
4044       // automaticlly block the signal
4062     // try to honor the signal mask
4073     // restore the signal mask
4076   // Tell jvm's signal handler the signal is taken care of.
4082   // signal-chaining
4100   assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
4109   assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
4114   assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
4139                     "%#lx for signal %d.", (long)oldhand, sig));
4153   assert(sig > 0 && sig < MAXSIGNUM, "vm signal out of expected range");
4162   assert(oldhand2 == oldhand, "no concurrent signal handler installation");
4165 // install signal handlers for signals that HotSpot needs to
4172     // signal-chaining
4184       assert(UseSignalChaining, "should enable signal-chaining");
4187       // Tell libjsig jvm is setting signal handlers
4199       // Tell libjsig jvm finishes setting signal handlers
4203     // We don't activate signal checker if libjsig is in place, we trust ourselves
4205     // Log that signal checking is off only if -verbose:jni is specified.
4209           tty->print_cr("Info: libjsig is activated, all active signal checking is disabled");
4215           tty->print_cr("Info: AllowUserSignalHandlers is activated, all active signal checking is disabled");
4240 // to indicate, that some special sort of signal
4303     // It is our signal handler
4421   // Dump all the signal
4433     // signal
4728 // Suspends the target using the signal mechanism and then grabs the PC before
5306 //      desirable signal-after-unlock optimization that avoids futile context switching.
5457   //   -1 :=> either 0 or 1; must signal target thread
5487   // Note that we signal() _after dropping the lock for "immortal" Events.
5703 // Unlike system(), this function can be called from signal handler. It
5756        // The child exited because of a signal
5757        // The best value to return is 0x80 + signal number,
5760        // process death by signal.
5857     // Wait for the mem_notify device to signal us..