| /* hppa-signal.h - Catch runtime signals and turn them into exceptions, |
| on a HP-UX 11 PA system. */ |
| |
| /* Copyright (C) 2006 Free Software Foundation |
| |
| This file is part of libgcj. |
| |
| This software is copyrighted work licensed under the terms of the |
| Libgcj License. Please consult the file "LIBGCJ_LICENSE" for |
| details. */ |
| |
| /* This file is really more of a specification. The rest of the system |
| should be arranged so that this Just Works. */ |
| |
| #ifndef JAVA_SIGNAL_H |
| # define JAVA_SIGNAL_H 1 |
| |
| #include <sys/types.h> |
| #include <signal.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| # define HANDLE_SEGV 1 |
| # undef HANDLE_FPE |
| |
| #define SIGNAL_HANDLER(_name) \ |
| static void _name (int _dummy __attribute__ ((unused)), \ |
| siginfo_t *_info __attribute__ ((__unused__)), \ |
| void *arg __attribute__ ((__unused__))) |
| |
| #define MAKE_THROW_FRAME(_exception) \ |
| do \ |
| { \ |
| ucontext_t *_context = (ucontext_t *) arg; \ |
| (void)_dummy; \ |
| (void)_info; \ |
| mcontext_t *mc = &(_context->uc_mcontext); \ |
| SetSSReg (mc, ss_pcoq_head, GetSSReg (mc, ss_pcoq_tail)); \ |
| SetSSReg (mc, ss_pcsq_head, GetSSReg (mc, ss_pcsq_tail)); \ |
| /* This part is not quit right if the head pc was pointing \ |
| at a branch. The tail needs to be adjusted to the branch \ |
| target if the branch is taken. The tail space register \ |
| may need adjustment as well if the branch is an interspace \ |
| branch. */ \ |
| SetSSReg (mc, ss_pcoq_tail, (GetSSReg (mc, ss_pcoq_tail) + 4)); \ |
| \ |
| } \ |
| while (0) |
| |
| # define INIT_SEGV \ |
| do { \ |
| struct sigaction sa; \ |
| sa.sa_sigaction = catch_segv; \ |
| sigemptyset (&sa.sa_mask); \ |
| sa.sa_flags = SA_SIGINFO | SA_NODEFER; \ |
| sigaction (SIGSEGV, &sa, NULL); \ |
| } while (0) |
| |
| # define INIT_FPE \ |
| do { \ |
| struct sigaction sa; \ |
| sa.sa_sigaction = catch_fpe; \ |
| sigemptyset (&sa.sa_mask); \ |
| sa.sa_flags = SA_SIGINFO | SA_NODEFER; \ |
| sigaction (SIGFPE, &sa, NULL); \ |
| } while (0) |
| |
| #endif /* JAVA_SIGNAL_H */ |