92 for (int i = 0; i < NUM_SIGNALS; i++) {
93 if (SIGNALS[i] == sig) {
94 return resettedSighandler[i];
95 }
96 }
97 return NULL;
98 }
99
100 static void crash_handler(int sig, siginfo_t* info, void* ucVoid) {
101
102 // Unmask current signal.
103 sigset_t newset;
104 sigemptyset(&newset);
105 sigaddset(&newset, sig);
106 // and all other synchronous signals too.
107 for (int i = 0; i < NUM_SIGNALS; i++) {
108 sigaddset(&newset, SIGNALS[i]);
109 }
110 sigthreadmask(SIG_UNBLOCK, &newset, NULL);
111
112 VMError err(NULL, sig, NULL, info, ucVoid);
113 err.report_and_die();
114 }
115
116 void VMError::reset_signal_handlers() {
117 sigset_t newset;
118 sigemptyset(&newset);
119
120 for (int i = 0; i < NUM_SIGNALS; i++) {
121 save_signal(i, SIGNALS[i]);
122 os::signal(SIGNALS[i], CAST_FROM_FN_PTR(void *, crash_handler));
123 sigaddset(&newset, SIGNALS[i]);
124 }
125
126 sigthreadmask(SIG_UNBLOCK, &newset, NULL);
127 }
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92 for (int i = 0; i < NUM_SIGNALS; i++) {
93 if (SIGNALS[i] == sig) {
94 return resettedSighandler[i];
95 }
96 }
97 return NULL;
98 }
99
100 static void crash_handler(int sig, siginfo_t* info, void* ucVoid) {
101
102 // Unmask current signal.
103 sigset_t newset;
104 sigemptyset(&newset);
105 sigaddset(&newset, sig);
106 // and all other synchronous signals too.
107 for (int i = 0; i < NUM_SIGNALS; i++) {
108 sigaddset(&newset, SIGNALS[i]);
109 }
110 sigthreadmask(SIG_UNBLOCK, &newset, NULL);
111
112 // support safefetch faults in error handling
113 ucontext_t* const uc = (ucontext_t*) ucVoid;
114 address const pc = uc ? os::Aix::ucontext_get_pc(uc) : NULL;
115 if (uc && pc && StubRoutines::is_safefetch_fault(pc)) {
116 os::Aix::ucontext_set_pc(uc, StubRoutines::continuation_for_safefetch_fault(pc));
117 return;
118 }
119
120 VMError err(NULL, sig, pc, info, ucVoid);
121 err.report_and_die();
122 }
123
124 void VMError::reset_signal_handlers() {
125 sigset_t newset;
126 sigemptyset(&newset);
127
128 for (int i = 0; i < NUM_SIGNALS; i++) {
129 save_signal(i, SIGNALS[i]);
130 os::signal(SIGNALS[i], CAST_FROM_FN_PTR(void *, crash_handler));
131 sigaddset(&newset, SIGNALS[i]);
132 }
133
134 sigthreadmask(SIG_UNBLOCK, &newset, NULL);
135 }
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