servers/is/dmp.c

   1 /* This file contains information dump procedures. During the initialization
   2  * of the Information Service 'known' function keys are registered at the TTY
   3  * server in order to receive a notification if one is pressed. Here, the
   4  * corresponding dump procedure is called.
   5  *
   6  * The entry points into this file are
   7  *   handle_fkey:       handle a function key pressed notification
   8  */
   9
  10 #include "inc.h"
  11
  12 /* Define hooks for the debugging dumps. This table maps function keys
  13  * onto a specific dump and provides a description for it.
  14  */
  15 #define NHOOKS 18
  16
  17 struct hook_entry {
  18         int key;
  19         void (*function)(void);
  20         char *name;
  21 } hooks[NHOOKS] = {
  22         { F1,   proctab_dmp, "Kernel process table" },
  23         { F2,   memmap_dmp, "Process memory maps" },
  24         { F3,   image_dmp, "System image" },
  25         { F4,   privileges_dmp, "Process privileges" },
  26         { F5,   monparams_dmp, "Boot monitor parameters" },
  27         { F6,   irqtab_dmp, "IRQ hooks and policies" },
  28         { F7,   kmessages_dmp, "Kernel messages" },
  29         { F9,   sched_dmp, "Scheduling queues" },
  30         { F10,  kenv_dmp, "Kernel parameters" },
  31         { F11,  timing_dmp, "Timing details (if enabled)" },
  32         { SF1,  mproc_dmp, "Process manager process table" },
  33         { SF2,  sigaction_dmp, "Signals" },
  34         { SF3,  fproc_dmp, "Filesystem process table" },
  35         { SF4,  dtab_dmp, "Device/Driver mapping" },
  36         { SF5,  mapping_dmp, "Print key mappings" },
  37         { SF6,  rproc_dmp, "Reincarnation server process table" },
  38         { SF7,  holes_dmp, "Memory free list" },
  39         { SF8,  data_store_dmp, "Data store contents" },
  40 };
  41
  42 /*===========================================================================*
  43  *                              handle_fkey                                  *
  44  *===========================================================================*/
  45 #define pressed(k) ((F1<=(k)&&(k)<=F12 && bit_isset(m->FKEY_FKEYS,((k)-F1+1)))\
  46         || (SF1<=(k) && (k)<=SF12 && bit_isset(m->FKEY_SFKEYS, ((k)-SF1+1))))
  47 PUBLIC int do_fkey_pressed(m)
  48 message *m;                                     /* notification message */
  49 {
  50   int s, h;
  51
  52   /* The notification message does not convey any information, other
  53    * than that some function keys have been pressed. Ask TTY for details.
  54    */
  55   m->m_type = FKEY_CONTROL;
  56   m->FKEY_REQUEST = FKEY_EVENTS;
  57   if (OK != (s=sendrec(TTY_PROC_NR, m)))
  58       report("IS", "warning, sendrec to TTY failed", s);
  59
  60   /* Now check which keys were pressed: F1-F12, SF1-SF12. */
  61   for(h=0; h < NHOOKS; h++)
  62       if(pressed(hooks[h].key))
  63           hooks[h].function();
  64
  65   /* Don't send a reply message. */
  66   return(EDONTREPLY);
  67 }
  68
  69 /*===========================================================================*
  70  *                              key_name                                     *
  71  *===========================================================================*/
  72 PRIVATE char *key_name(int key)
  73 {
  74         static char name[15];
  75
  76         if(key >= F1 && key <= F12)
  77                 sprintf(name, " F%d", key - F1 + 1);
  78         else if(key >= SF1 && key <= SF12)
  79                 sprintf(name, "Shift+F%d", key - SF1 + 1);
  80         else
  81                 sprintf(name, "?");
  82         return name;
  83 }
  84
  85
  86 /*===========================================================================*
  87  *                              mapping_dmp                                  *
  88  *===========================================================================*/
  89 PUBLIC void mapping_dmp(void)
  90 {
  91   int h;
  92
  93   printf("Function key mappings for debug dumps in IS server.\n");
  94   printf("        Key   Description\n");
  95   printf("-------------------------------------");
  96   printf("------------------------------------\n");
  97
  98   for(h=0; h < NHOOKS; h++)
  99       printf(" %10s.  %s\n", key_name(hooks[h].key), hooks[h].name);
 100   printf("\n");
 101 }
 102