#include <intLib.h>
#include <iv.h>
+#ifdef VTHREADS
+#include "private/vThreadsP.h"
+#endif
+
extern int __gnat_inum_to_ivec (int);
static void __gnat_error_handler (int, int, struct sigcontext *);
void __gnat_map_signal (int);
return INUM_TO_IVEC (num);
}
+/* VxWorks expects the field excCnt to be zeroed when a signal is handled.
+ The VxWorks version of longjmp does this; gcc's builtin_longjmp does not */
+void
+__gnat_clear_exception_count (void)
+{
+#ifdef VTHREADS
+ taskIdCurrent->vThreads.excCnt = 0;
+#endif
+}
+
/* Exported to 5zintman.adb in order to handle different signal
to exception mappings in different VxWorks versions */
void
exception = &constraint_error;
msg = "SIGFPE";
break;
+#ifdef VTHREADS
case SIGILL:
exception = &constraint_error;
- msg = "SIGILL";
+ msg = "Floating point exception or SIGILL";
break;
-#ifdef VTHREADS
case SIGSEGV:
exception = &storage_error;
msg = "SIGSEGV: possible stack overflow";
msg = "SIGBUS: possible stack overflow";
break;
#else
+ case SIGILL:
+ exception = &constraint_error;
+ msg = "SIGILL";
+ break;
case SIGSEGV:
exception = &program_error;
msg = "SIGSEGV";
msg = "unhandled signal";
}
+ __gnat_clear_exception_count ();
Raise_From_Signal_Handler (exception, msg);
}
sigdelset (&mask, sig);
sigprocmask (SIG_SETMASK, &mask, NULL);
- /* VxWorks will suspend the task when it gets a hardware exception. We
- take the liberty of resuming the task for the application. */
- if (taskIsSuspended (taskIdSelf ()) != 0)
- taskResume (taskIdSelf ());
-
__gnat_map_signal (sig);
}
procedure Notify_Exception (signo : Signal) is
Mask : aliased sigset_t;
- My_Id : t_id;
Result : int;
pragma Unreferenced (Result);
Result := sigdelset (Mask'Access, signo);
Result := pthread_sigmask (SIG_SETMASK, Mask'Unchecked_Access, null);
- -- VxWorks will suspend the task when it gets a hardware
- -- exception. We take the liberty of resuming the task
- -- for the application.
-
- My_Id := taskIdSelf;
-
- if taskIsSuspended (My_Id) /= 0 then
- Result := taskResume (My_Id);
- end if;
-
Map_And_Raise_Exception (signo);
end Notify_Exception;