libjava/include/darwin-signal.h

   1 /* darwin-signal.h - Catch runtime signals and turn them into exceptions,
   2    on a Darwin system.  */
   3
   4 /* Copyright (C) 2004  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 <stdio.h>
  20 #include <signal.h>
  21
  22 typedef void (* SIG_PF)(int);
  23
  24 # define HANDLE_SEGV 1
  25 # undef HANDLE_FPE
  26
  27 # define SIGNAL_HANDLER(_name)                                  \
  28   static void _name (int _dummy __attribute__ ((unused)))
  29
  30 # define MAKE_THROW_FRAME(_exception)
  31
  32 # define INIT_SEGV                              \
  33   do {                                          \
  34       struct sigaction sa;                      \
  35       sa.sa_handler = catch_segv;               \
  36       sigemptyset (&sa.sa_mask);                \
  37       sa.sa_flags = SA_NODEFER;                 \
  38       sigaction (SIGBUS, &sa, NULL);            \
  39       sigaction (SIGSEGV, &sa, NULL);           \
  40     } while (0)
  41
  42 # define INIT_FPE                               \
  43   do {                                          \
  44       struct sigaction sa;                      \
  45       sa.sa_handler = catch_fpe;                \
  46       sigemptyset (&sa.sa_mask);                \
  47       sa.sa_flags = SA_NODEFER;                 \
  48       sigaction (SIGFPE, &sa, NULL);            \
  49     } while (0)
  50
  51 #endif /* JAVA_SIGNAL_H */