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111 lines
2.7 KiB
Plaintext
111 lines
2.7 KiB
Plaintext
*** ada/a-init.c.orig Wed Jul 19 15:09:57 2000
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--- ada/a-init.c Fri Oct 13 11:25:52 2000
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***************
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*** 1441,1446 ****
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--- 1441,1528 ----
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}
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+ /*************************************************/
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+ /* __gnat_initialize (FreeBSD version) */
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+ /*************************************************/
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+
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+ #elif defined (__FreeBSD__)
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+
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+ #include <signal.h>
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+ #include <unistd.h>
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+
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+ static void
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+ __gnat_error_handler (sig, code, sc)
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+ int sig;
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+ int code;
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+ struct sigcontext *sc;
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+ {
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+ struct Exception_Data *exception;
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+ char *msg;
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+
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+ switch (sig)
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+ {
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+ case SIGFPE:
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+ exception = &constraint_error;
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+ msg = "SIGFPE";
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+ break;
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+
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+ case SIGILL:
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+ exception = &constraint_error;
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+ msg = "SIGILL";
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+ break;
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+
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+ case SIGSEGV:
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+ exception = &storage_error;
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+ msg = "stack overflow or erroneous memory access";
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+ break;
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+
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+ case SIGBUS:
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+ exception = &constraint_error;
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+ msg = "SIGBUS";
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+ break;
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+
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+ default:
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+ exception = &program_error;
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+ msg = "unhandled signal";
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+ }
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+
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+ Raise_From_Signal_Handler (exception, msg);
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+ }
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+
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+ void
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+ __gnat_install_handler ()
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+ {
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+ struct sigaction act;
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+
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+ /* Set up signal handler to map synchronous signals to appropriate
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+ exceptions. Make sure that the handler isn't interrupted by another
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+ signal that might cause a scheduling event! */
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+
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+ act.sa_handler = __gnat_error_handler;
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+ act.sa_flags = SA_NODEFER | SA_RESTART;
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+ (void) sigemptyset (&act.sa_mask);
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+
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+ (void) sigaction (SIGILL, &act, NULL);
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+ (void) sigaction (SIGFPE, &act, NULL);
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+ (void) sigaction (SIGSEGV, &act, NULL);
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+ (void) sigaction (SIGBUS, &act, NULL);
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+ }
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+
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+ void __gnat_init_float ();
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+
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+ void
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+ __gnat_initialize ()
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+ {
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+ __gnat_install_handler ();
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+
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+ /* XXX - Initialize floating-point coprocessor. This call is
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+ needed because FreeBSD defaults to 64-bit precision instead
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+ of 80-bit precision? We require the full precision for
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+ proper operation, given that we have set Max_Digits etc
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+ with this in mind */
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+ __gnat_init_float ();
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+ }
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+
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/***************************************/
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/* __gnat_initialize (default version) */
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/***************************************/
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***************
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*** 1466,1472 ****
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WIN32 and could be used under OS/2 */
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#if defined (_WIN32) || defined (__INTERIX) || defined (__EMX__) \
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! || defined (__Lynx__)
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#define HAVE_GNAT_INIT_FLOAT
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--- 1548,1554 ----
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WIN32 and could be used under OS/2 */
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#if defined (_WIN32) || defined (__INTERIX) || defined (__EMX__) \
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! || defined (__Lynx__) || defined (__FreeBSD__)
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#define HAVE_GNAT_INIT_FLOAT
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