git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 68bfb94e AT |
1 | /* hppa-signal.h - Catch runtime signals and turn them into exceptions, |
| 2 | on a HP-UX 11 PA system. */ | |
| 3 | ||
| 4 | /* Copyright (C) 2006 Free Software Foundation | |
| 5 | ||
| 6 | This file is part of libgcj. | |
| 7 | ||
| 8 | This software is copyrighted work licensed under the terms of the | |
| 9 | Libgcj License. Please consult the file "LIBGCJ_LICENSE" for | |
| 10 | details. */ | |
| 11 | ||
| 12 | /* This file is really more of a specification. The rest of the system | |
| 13 | should be arranged so that this Just Works. */ | |
| 14 | ||
| 15 | #ifndef JAVA_SIGNAL_H | |
| 16 | # define JAVA_SIGNAL_H 1 | |
| 17 | ||
| 18 | #include <sys/types.h> | |
| 19 | #include <signal.h> | |
| 20 | #include <sys/syscall.h> | |
| 21 | #include <unistd.h> | |
| 22 | ||
| 23 | # define HANDLE_SEGV 1 | |
| 24 | # undef HANDLE_FPE | |
| 25 | ||
| 26 | #define SIGNAL_HANDLER(_name) \ | |
| 27 | static void _name (int _dummy __attribute__ ((unused)), \ | |
| 28 | siginfo_t *_info __attribute__ ((__unused__)), \ | |
| 29 | void *arg __attribute__ ((__unused__))) | |
| 30 | ||
| 31 | #define MAKE_THROW_FRAME(_exception) \ | |
| 32 | do \ | |
| 33 | { \ | |
| 34 | ucontext_t *_context = (ucontext_t *) arg; \ | |
| 35 | (void)_dummy; \ | |
| 36 | (void)_info; \ | |
| 37 | mcontext_t *mc = &(_context->uc_mcontext); \ | |
| 38 | SetSSReg (mc, ss_pcoq_head, GetSSReg (mc, ss_pcoq_tail)); \ | |
| 39 | SetSSReg (mc, ss_pcsq_head, GetSSReg (mc, ss_pcsq_tail)); \ | |
| 40 | /* This part is not quit right if the head pc was pointing \ | |
| 41 | at a branch. The tail needs to be adjusted to the branch \ | |
| 42 | target if the branch is taken. The tail space register \ | |
| 43 | may need adjustment as well if the branch is an interspace \ | |
| 44 | branch. */ \ | |
| 45 | SetSSReg (mc, ss_pcoq_tail, (GetSSReg (mc, ss_pcoq_tail) + 4)); \ | |
| 46 | \ | |
| 47 | } \ | |
| 48 | while (0) | |
| 49 | ||
| 50 | # define INIT_SEGV \ | |
| 51 | do { \ | |
| 52 | struct sigaction sa; \ | |
| 53 | sa.sa_sigaction = catch_segv; \ | |
| 54 | sigemptyset (&sa.sa_mask); \ | |
| 55 | sa.sa_flags = SA_SIGINFO | SA_NODEFER; \ | |
| 56 | sigaction (SIGSEGV, &sa, NULL); \ | |
| 57 | } while (0) | |
| 58 | ||
| 59 | # define INIT_FPE \ | |
| 60 | do { \ | |
| 61 | struct sigaction sa; \ | |
| 62 | sa.sa_sigaction = catch_fpe; \ | |
| 63 | sigemptyset (&sa.sa_mask); \ | |
| 64 | sa.sa_flags = SA_SIGINFO | SA_NODEFER; \ | |
| 65 | sigaction (SIGFPE, &sa, NULL); \ | |
| 66 | } while (0) | |
| 67 | ||
| 68 | #endif /* JAVA_SIGNAL_H */ |