minix/servers/is/dmp.c

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/* This file contains information dump procedures. During the initialization
* of the Information Service 'known' function keys are registered at the TTY
* server in order to receive a notification if one is pressed. Here, the
* corresponding dump procedure is called.
*
* The entry points into this file are
* handle_fkey: handle a function key pressed notification
*/
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#include "inc.h"
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struct hook_entry {
int key;
void (*function)(void);
char *name;
} hooks[] = {
{ F1, proctab_dmp, "Kernel process table" },
{ F2, memmap_dmp, "Process memory maps" },
{ F3, image_dmp, "System image" },
{ F4, privileges_dmp, "Process privileges" },
{ F5, monparams_dmp, "Boot monitor parameters" },
{ F6, irqtab_dmp, "IRQ hooks and policies" },
{ F7, kmessages_dmp, "Kernel messages" },
{ F9, sched_dmp, "Scheduling queues" },
{ F10, kenv_dmp, "Kernel parameters" },
{ F11, timing_dmp, "Timing details (if enabled)" },
{ SF1, mproc_dmp, "Process manager process table" },
{ SF2, sigaction_dmp, "Signals" },
{ SF3, fproc_dmp, "Filesystem process table" },
{ SF4, dtab_dmp, "Device/Driver mapping" },
{ SF5, mapping_dmp, "Print key mappings" },
{ SF6, rproc_dmp, "Reincarnation server process table" },
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{ SF8, data_store_dmp, "Data store contents" },
{ SF9, procstack_dmp, "Processes with stack traces" },
};
/* Define hooks for the debugging dumps. This table maps function keys
* onto a specific dump and provides a description for it.
*/
#define NHOOKS (sizeof(hooks)/sizeof(hooks[0]))
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/*===========================================================================*
* handle_fkey *
*===========================================================================*/
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#define pressed(k) ((F1<=(k)&&(k)<=F12 && bit_isset(m->FKEY_FKEYS,((k)-F1+1)))\
|| (SF1<=(k) && (k)<=SF12 && bit_isset(m->FKEY_SFKEYS, ((k)-SF1+1))))
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PUBLIC int do_fkey_pressed(m)
message *m; /* notification message */
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{
int s, h;
/* The notification message does not convey any information, other
* than that some function keys have been pressed. Ask TTY for details.
*/
m->m_type = FKEY_CONTROL;
m->FKEY_REQUEST = FKEY_EVENTS;
if (OK != (s=sendrec(TTY_PROC_NR, m)))
report("IS", "warning, sendrec to TTY failed", s);
/* Now check which keys were pressed: F1-F12, SF1-SF12. */
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for(h=0; h < NHOOKS; h++)
if(pressed(hooks[h].key))
hooks[h].function();
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/* Don't send a reply message. */
return(EDONTREPLY);
}
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/*===========================================================================*
* key_name *
*===========================================================================*/
PRIVATE char *key_name(int key)
{
static char name[15];
if(key >= F1 && key <= F12)
sprintf(name, " F%d", key - F1 + 1);
else if(key >= SF1 && key <= SF12)
sprintf(name, "Shift+F%d", key - SF1 + 1);
else
sprintf(name, "?");
return name;
}
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/*===========================================================================*
* mapping_dmp *
*===========================================================================*/
PUBLIC void mapping_dmp(void)
{
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int h;
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printf("Function key mappings for debug dumps in IS server.\n");
printf(" Key Description\n");
printf("-------------------------------------");
printf("------------------------------------\n");
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for(h=0; h < NHOOKS; h++)
printf(" %10s. %s\n", key_name(hooks[h].key), hooks[h].name);
printf("\n");
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}