compiler/clib/__signal.c

   1 /*
   2     Copyright © 2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <proto/exec.h>
   7
   8 #include <signal.h>
   9 #include <errno.h>
  10 #include <stdio.h>
  11 #include <assert.h>
  12
  13 #include "__arosc_privdata.h"
  14 #include "__signal.h"
  15
  16 struct signal_func_data *__sig_getfuncdata(int signum)
  17 {
  18     struct aroscbase *aroscbase = __GM_GetBase();
  19     int i;
  20
  21     if (signum < SIGHUP || signum > SIGRTMAX)
  22     {
  23         errno = EINVAL;
  24         return NULL;
  25     }
  26
  27     if (aroscbase->acb_sigfunc_array == NULL)
  28     {
  29         aroscbase->acb_sigfunc_array =
  30             AllocPooled(aroscbase->acb_internalpool,
  31                         SIGRTMAX*sizeof(struct signal_func_data)
  32             );
  33
  34         if (!aroscbase->acb_sigfunc_array)
  35         {
  36             errno = ENOMEM;
  37             return NULL;
  38         }
  39
  40         for (i = 0; i < SIGRTMAX; i++)
  41         {
  42             aroscbase->acb_sigfunc_array[i].sigfunc = SIG_DFL;
  43             aroscbase->acb_sigfunc_array[i].flags = 0;
  44         }
  45     }
  46
  47     return &aroscbase->acb_sigfunc_array[signum-1];
  48 }
  49
  50 /* Handler for SIG_DFL */
  51 void __sig_default(int signum)
  52 {
  53     struct aroscbase *aroscbase = __GM_GetBase();
  54
  55     switch (signum)
  56     {
  57     case SIGABRT:
  58         fprintf(stderr, "Program aborted.\n");
  59         break;
  60
  61     case SIGTERM:
  62         fprintf(stderr, "Program terminated.\n");
  63         break;
  64
  65     default:
  66         fprintf(stderr, "Caught signal %d; aborting...\n", signum);
  67         break;
  68     }
  69
  70     aroscbase->acb_flags |= ABNORMAL_EXIT;
  71     longjmp(__arosc_startup_jmp_buf, 20);
  72
  73     assert(0); /* Should not be reached */
  74 }