| // sparc-signal.h - Catch runtime signals and turn them into exceptions. |
| |
| /* Copyright (C) 1998, 1999, 2000 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. */ |
| |
| #ifndef JAVA_SIGNAL_H |
| #define JAVA_SIGNAL_H 1 |
| |
| #include <signal.h> |
| #include <ucontext.h> |
| |
| #define HANDLE_SEGV 1 |
| #define HANDLE_FPE 1 |
| |
| #define SIGNAL_HANDLER(_name) \ |
| static void _name (int _dummy __attribute__ ((__unused__)), \ |
| siginfo_t *_info __attribute__ ((__unused__)), \ |
| void *arg __attribute__ ((__unused__))) |
| |
| #ifdef __arch64__ |
| #define FLUSH_REGISTER_WINDOWS \ |
| asm volatile ("flushw"); |
| #else |
| #define FLUSH_REGISTER_WINDOWS \ |
| asm volatile ("ta 3"); |
| #endif |
| |
| #define MAKE_THROW_FRAME(_exception) \ |
| do \ |
| { \ |
| ucontext_t *_context = (ucontext_t *) arg; \ |
| (void)_dummy; \ |
| (void)_info; \ |
| register long sp = _context->uc_mcontext.gregs[REG_SP]; \ |
| register long retaddr = _context->uc_mcontext.gregs[REG_O7]; \ |
| FLUSH_REGISTER_WINDOWS; \ |
| asm volatile ("mov %0, %%i6; mov %1, %%i7" \ |
| : : "r"(sp), "r"(retaddr)); \ |
| } \ |
| while (0) |
| |
| #define INIT_SEGV \ |
| do \ |
| { \ |
| struct sigaction act; \ |
| act.sa_sigaction = catch_segv; \ |
| act.sa_flags = SA_SIGINFO | SA_NODEFER; \ |
| sigemptyset (&act.sa_mask); \ |
| sigaction (SIGSEGV, &act, NULL); \ |
| } \ |
| while (0) |
| |
| #define INIT_FPE \ |
| do \ |
| { \ |
| struct sigaction act; \ |
| act.sa_flags = SA_SIGINFO | SA_NODEFER; \ |
| act.sa_sigaction = catch_fpe; \ |
| sigemptyset (&act.sa_mask); \ |
| sigaction (SIGFPE, &act, NULL); \ |
| } \ |
| while (0) |
| |
| #endif /* JAVA_SIGNAL_H */ |