libjava/include/freebsd-signal.h

   1 /* freebsd-signal.h - Catch runtime signals and turn them into exceptions,
   2    on a FreeBSD system.  */
   3
   4 /* Copyright (C) 2015 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 <sys/signal.h>
  20
  21 # define HANDLE_SEGV 1
  22 # define HANDLE_FPE  1
  23
  24 # define SIGNAL_HANDLER(_name)                                  \
  25   static void _name (int _dummy __attribute__ ((unused)))
  26
  27 # define MAKE_THROW_FRAME(_exception)
  28
  29 # define INIT_SEGV                              \
  30   do {                                          \
  31     struct sigaction sa;                        \
  32     sa.sa_handler = catch_segv;         \
  33     sigemptyset (&sa.sa_mask);                  \
  34     sa.sa_flags = SA_NODEFER;                   \
  35     sigaction (SIGBUS, &sa, NULL);              \
  36     sigaction (SIGSEGV, &sa, NULL);             \
  37     } while (0)
  38
  39 # define INIT_FPE                               \
  40   do {                                          \
  41     struct sigaction sa;                        \
  42     sa.sa_handler = catch_fpe;                  \
  43     sigemptyset (&sa.sa_mask);                  \
  44     sa.sa_flags = SA_NODEFER;                   \
  45     sigaction (SIGFPE, &sa, NULL);              \
  46     } while (0)
  47
  48 #endif /* JAVA_SIGNAL_H */