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minix/servers/is/dmp.c
Jorrit Herder ccd17ecfed New NOTIFY system call! Queued at kernel. Duplicate messages (with same source 
and type) are overwritten with newer flags/ arguments. The interface from
within the kernel is lock_notify(). User processes can make a system call with
notify(). NOTIFY fully replaces the old notification mechanism.
2005-05-24 10:06:17 +00:00

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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
*/
/* Several header files from the kernel are included here so that we can use
* the constants, macros, and types needed to make the debugging dumps.
*/
#include "is.h"
#include <timers.h>
#include <string.h>
#include <ibm/interrupt.h>
#include "../../kernel/const.h"
#include "../../kernel/type.h"
#include "../../kernel/proc.h"
#include "../../kernel/sendmask.h"
#define click_to_round_k(n) \
((unsigned) ((((unsigned long) (n) << CLICK_SHIFT) + 512) / 1024))
/* Declare some local dump procedures. */
FORWARD _PROTOTYPE( char *proc_name, (int proc_nr) );
FORWARD _PROTOTYPE( void proctab_dmp, (void) );
FORWARD _PROTOTYPE( void memmap_dmp, (void) );
FORWARD _PROTOTYPE( void sendmask_dmp, (void) );
FORWARD _PROTOTYPE( void image_dmp, (void) );
FORWARD _PROTOTYPE( void irqtab_dmp, (void) );
FORWARD _PROTOTYPE( void kmessages_dmp, (void) );
FORWARD _PROTOTYPE( void diagnostics_dmp, (void) );
FORWARD _PROTOTYPE( void sched_dmp, (void) );
FORWARD _PROTOTYPE( void monparams_dmp, (void) );
FORWARD _PROTOTYPE( void kenv_dmp, (void) );
FORWARD _PROTOTYPE( void memchunks_dmp, (void) );
/* Some global data that is shared among several dumping procedures.
* Note that the process table copy has the same name as in the kernel
* so that most macros and definitions from proc.h also apply here.
*/
struct proc proc[NR_TASKS + NR_PROCS];
struct system_image image[IMAGE_SIZE];
/*===========================================================================*
* handle_fkey *
*===========================================================================*/
PUBLIC int do_fkey_pressed(message *m)
{
if (F1 <= m->FKEY_CODE && m->FKEY_CODE <= F12) {
switch(m->FKEY_CODE) {
case F1: proctab_dmp(); break;
case F2: memmap_dmp(); break;
case F3: image_dmp(); break;
case F4: sendmask_dmp(); break;
case F5: monparams_dmp(); break;
case F6: irqtab_dmp(); break;
case F7: kmessages_dmp(); break;
case F9: diagnostics_dmp(); break;
case F10: kenv_dmp(); break;
case F11: memchunks_dmp(); break;
case F12: sched_dmp(); break;
default:
printf("IS: unhandled notification for F%d\n", m->FKEY_NUM);
}
}
return(EDONTREPLY);
}
/*===========================================================================*
* diagnostics_dmp *
*===========================================================================*/
PRIVATE void diagnostics_dmp()
{
char print_buf[DIAG_BUF_SIZE+1]; /* buffer used to print */
int start; /* calculate start of messages */
int size, r;
/* Try to print the kernel messages. First determine start and copy the
* buffer into a print-buffer. This is done because the messages in the
* copy may wrap (the kernel buffer is circular).
*/
start = ((diag_next + DIAG_BUF_SIZE) - diag_size) % DIAG_BUF_SIZE;
r = 0;
size = diag_size;
while (size > 0) {
print_buf[r] = diag_buf[(start+r) % DIAG_BUF_SIZE];
r ++;
size --;
}
print_buf[r] = 0; /* make sure it terminates */
printf("Dump of diagnostics from device drivers and servers.\n\n");
printf(print_buf); /* print the messages */
}
/*===========================================================================*
* kmessages_dmp *
*===========================================================================*/
PRIVATE void kmessages_dmp()
{
struct kmessages kmess; /* get copy of kernel messages */
char print_buf[KMESS_BUF_SIZE+1]; /* this one is used to print */
int next, size; /* vars returned by sys_kmess() */
int start; /* calculate start of messages */
int r;
/* Try to get a copy of the kernel messages. */
if ((r = sys_getkmessages(&kmess)) != OK) {
report("warning: couldn't get copy of kmessages", r);
return;
}
/* Try to print the kernel messages. First determine start and copy the
* buffer into a print-buffer. This is done because the messages in the
* copy may wrap (the kernel buffer is circular).
*/
start = ((kmess.km_next + KMESS_BUF_SIZE) - kmess.km_size) % KMESS_BUF_SIZE;
r = 0;
while (kmess.km_size > 0) {
print_buf[r] = kmess.km_buf[(start+r) % KMESS_BUF_SIZE];
r ++;
kmess.km_size --;
}
print_buf[r] = 0; /* make sure it terminates */
printf("Dump of all messages generated by the kernel.\n\n");
printf(print_buf); /* print the messages */
}
/*===========================================================================*
* monparams_dmp *
*===========================================================================*/
PRIVATE void monparams_dmp()
{
char val[1024];
char *e;
int r;
/* Try to get a copy of the boot monitor parameters. */
if ((r = sys_getmonparams(val, sizeof(val))) != OK) {
report("warning: couldn't get copy of monitor params", r);
return;
}
/* Append new lines to the result. */
e = val;
do {
e += strlen(e);
*e++ = '\n';
} while (*e != 0);
/* Finally, print the result. */
printf("Dump of kernel environment strings set by boot monitor.\n");
printf("\n%s\n", val);
}
/*===========================================================================*
* irqtab_dmp *
*===========================================================================*/
PRIVATE void irqtab_dmp()
{
int i,j,r;
struct irq_hook irq_hooks[NR_IRQ_HOOKS];
struct irq_hook *e; /* irq tab entry */
char *irq[] = {
"clock", /* 00 */
"keyboard", /* 01 */
"cascade", /* 02 */
"eth/rs232", /* 03 */
"rs232", /* 04 */
"xt_wini", /* 05 */
"floppy", /* 06 */
"printer", /* 07 */
"", /* 08 */
"", /* 09 */
"", /* 10 */
"", /* 11 */
"", /* 12 */
"", /* 13 */
"at_wini_0", /* 14 */
"at_wini_1", /* 15 */
};
if ((r = sys_getirqhooks(irq_hooks)) != OK) {
report("warning: couldn't get copy of irq hooks", r);
return;
}
printf("IRQ policies dump shows use of kernel's IRQ hooks.\n");
printf("-h.id- -proc.nr- -IRQ vector (nr.)- -policy- \n");
for (i=0; i<NR_IRQ_HOOKS; i++) {
e = &irq_hooks[i];
printf("%3d", i);
if (e->proc_nr==NONE) {
printf(" <unused>\n");
continue;
}
printf("%10d ", e->proc_nr);
printf(" %9.9s (%02d) ", irq[e->irq], e->irq);
printf(" %s\n", (e->policy & IRQ_REENABLE) ? "reenable" : "-");
}
printf("\n");
}
/*===========================================================================*
* image_dmp *
*===========================================================================*/
PRIVATE void image_dmp()
{
int i,j,r;
struct system_image *ip;
char maskstr[NR_TASKS + NR_PROCS] = "mask";
char* types[] = {"task", "system","driver", "server", "user", "idle"};
char* priorities[] = {"task", "higher","high", "normal", "low", "lower", "user","idle"};
if ((r = sys_getimage(image)) != OK) {
report("warning: couldn't get copy of image table", r);
return;
}
printf("Image table dump showing all processes included in system image.\n");
printf("---name-- -nr- --type- -priority- ----pc- -stack- ------sendmask-------\n");
for (i=0; i<IMAGE_SIZE; i++) {
ip = &image[i];
for (j=-NR_TASKS; j<INIT_PROC_NR+2; j++)
maskstr[j+NR_TASKS] = (isallowed(ip->sendmask, j)) ? '1' : '0';
maskstr[j+NR_TASKS] = '\0';
printf("%8s %4d %7s %10s %7lu %7lu %s\n",
ip->proc_name, ip->proc_nr, types[ip->type], priorities[ip->priority],
(long)ip->initial_pc, ip->stksize, maskstr);
}
printf("\n");
}
/*===========================================================================*
* sched_dmp *
*===========================================================================*/
PRIVATE void sched_dmp()
{
struct proc *rdy_head[NR_SCHED_QUEUES];
char *types[] = {"task","higher","high","normal","low","lower","user","idle"};
struct kinfo kinfo;
register struct proc *rp;
vir_bytes ptr_diff;
int r;
/* First obtain a scheduling information. */
if ((r = sys_getschedinfo(proc, rdy_head)) != OK) {
report("warning: couldn't get copy of process table", r);
return;
}
/* Then obtain kernel addresses to correct pointer information. */
if ((r = sys_getkinfo(&kinfo)) != OK) {
report("warning: couldn't get kernel addresses", r);
return;
}
/* Update all pointers. Nasty pointer algorithmic ... */
ptr_diff = (vir_bytes) proc - (vir_bytes) kinfo.proc_addr;
for (r=0;r<NR_SCHED_QUEUES; r++)
if (rdy_head[r] != NIL_PROC)
rdy_head[r] =
(struct proc *)((vir_bytes) rdy_head[r] + ptr_diff);
for (rp=BEG_PROC_ADDR; rp < END_PROC_ADDR; rp++)
if (rp->p_nextready != NIL_PROC)
rp->p_nextready =
(struct proc *)((vir_bytes) rp->p_nextready + ptr_diff);
/* Now show scheduling queues. */
printf("Dumping scheduling queues.\n");
for (r=0;r<NR_SCHED_QUEUES; r++) {
printf("* %6s: ", types[r]);
rp = rdy_head[r];
while (rp != NIL_PROC) {
printf("%3d, ", rp->p_nr);
rp = rp->p_nextready;
}
printf("NIL\n");
}
printf("\n");
}
/*===========================================================================*
* kenv_dmp *
*===========================================================================*/
PRIVATE void kenv_dmp()
{
struct kinfo kinfo;
struct machine machine;
int r;
if ((r = sys_getkinfo(&kinfo)) != OK) {
report("warning: couldn't get copy of kernel info struct", r);
return;
}
if ((r = sys_getmachine(&machine)) != OK) {
report("warning: couldn't get copy of kernel machine struct", r);
return;
}
printf("Dump of kinfo and machine structures.\n\n");
printf("Machine structure:\n");
printf("- pc_at: %3d\n", machine.pc_at);
printf("- ps_mca: %3d\n", machine.ps_mca);
printf("- processor: %3d\n", machine.processor);
printf("- protected: %3d\n", machine.protected);
printf("- vdu_ega: %3d\n", machine.vdu_ega);
printf("- vdu_vga: %3d\n\n", machine.vdu_vga);
printf("Kernel info structure:\n");
printf("- code_base: %5u\n", kinfo.code_base);
printf("- code_size: %5u\n", kinfo.code_size);
printf("- data_base: %5u\n", kinfo.data_base);
printf("- data_size: %5u\n", kinfo.data_size);
printf("- proc_addr: %5u\n", kinfo.proc_addr);
printf("- kmem_base: %5u\n", kinfo.kmem_base);
printf("- kmem_size: %5u\n", kinfo.kmem_size);
printf("- bootdev_base: %5u\n", kinfo.bootdev_base);
printf("- bootdev_size: %5u\n", kinfo.bootdev_size);
printf("- params_base: %5u\n", kinfo.params_base);
printf("- params_size: %5u\n", kinfo.params_size);
printf("- notify_blocked:%8u\n", kinfo.notify_blocked);
printf("- notify_ok: %8u\n", kinfo.notify_ok);
printf("- notify_held: %8u\n", kinfo.notify_held);
printf("- notify_switch: %8u\n", kinfo.notify_switching);
printf("- notify_reenter:%8u\n", kinfo.notify_reenter);
printf("- notify_taskcall:%7u\n", kinfo.notify_taskcall);
printf("- notify_unhold: %8u\n", kinfo.notify_unhold);
printf("- hard_int: %8u\n", kinfo.notify_int);
printf("- hard_stop: %8u\n", kinfo.notify_stop);
printf("- sync_alarm: %8u\n", kinfo.notify_alarm);
printf("- ksig_pending: %8u\n", kinfo.notify_sig);
printf("- new_kmess: %8u\n", kinfo.notify_kmess);
printf("- nr_procs: %3u\n", kinfo.nr_procs);
printf("- nr_tasks: %3u\n", kinfo.nr_tasks);
printf("- version: %.6s\n", kinfo.version);
printf("\n");
}
/*===========================================================================*
* memchunks_dmp *
*===========================================================================*/
PRIVATE void memchunks_dmp()
{
int i,r;
struct memory mem[NR_MEMS];
if ((r = sys_getmemchunks(mem)) != OK) {
report("warning: couldn't get copy of mem chunks", r);
return;
}
printf("Memory chunks:\n");
for (i=0; i<NR_MEMS; i++) {
printf("chunk %d: base %u, size %u\n", i, mem[i].base, mem[i].size);
}
printf("\n");
}
/*===========================================================================*
* sendmask_dmp *
*===========================================================================*/
PRIVATE void sendmask_dmp()
{
register struct proc *rp;
static struct proc *oldrp = BEG_PROC_ADDR;
int r, i,j, n = 0;
/* First obtain a fresh copy of the current process table. */
if ((r = sys_getproctab(proc)) != OK) {
report("warning: couldn't get copy of process table", r);
return;
}
printf("\n\n");
printf("Sendmask dump for process table. User processes (*) don't have [].");
printf("\n");
printf("The rows of bits indicate to which processes each process may send.");
printf("\n\n");
printf(" ");
for (j=proc_number(BEG_PROC_ADDR); j< INIT_PROC_NR+1; j++) {
printf("%3d", j);
}
printf(" *\n");
for (rp = oldrp; rp < END_PROC_ADDR; rp++) {
if (isemptyp(rp)) continue;
if (++n > 20) break;
printf("%8s ", rp->p_name);
j = proc_number(rp);
switch(rp->p_type) {
case P_IDLE: printf("/%3d/ ", proc_number(rp)); break;
case P_TASK: printf("[%3d] ", proc_number(rp)); break;
case P_SYSTEM: printf("<%3d> ", proc_number(rp)); break;
case P_DRIVER: printf("{%3d} ", proc_number(rp)); break;
case P_SERVER: printf("(%3d) ", proc_number(rp)); break;
default: printf(" %3d ", proc_number(rp));
}
for (j=proc_number(BEG_PROC_ADDR); j<INIT_PROC_NR+2; j++) {
if (isallowed(rp->p_sendmask, j)) printf(" 1 ");
else printf(" 0 ");
}
printf("\n");
}
if (rp == END_PROC_ADDR) { printf("\n"); rp = BEG_PROC_ADDR; }
else printf("--more--\r");
oldrp = rp;
}
/*===========================================================================*
* proctab_dmp *
*===========================================================================*/
#if (CHIP == INTEL)
PRIVATE void proctab_dmp()
{
/* Proc table dump */
register struct proc *rp;
static struct proc *oldrp = BEG_PROC_ADDR;
int r, n = 0;
phys_clicks text, data, size;
/* First obtain a fresh copy of the current process table. */
if ((r = sys_getproctab(proc)) != OK) {
report("warning: couldn't get copy of process table", r);
return;
}
printf("\n-pid- -pri- --pc-- --sp-- -user- -sys- -text- -data- -size- -flags- -command-\n");
for (rp = oldrp; rp < END_PROC_ADDR; rp++) {
if (isemptyp(rp)) continue;
if (++n > 23) break;
text = rp->p_memmap[T].mem_phys;
data = rp->p_memmap[D].mem_phys;
size = rp->p_memmap[T].mem_len
+ ((rp->p_memmap[S].mem_phys + rp->p_memmap[S].mem_len) - data);
switch(rp->p_type) {
case P_IDLE: printf("/%3d/ ", proc_number(rp)); break;
case P_TASK: printf("[%3d] ", proc_number(rp)); break;
case P_SYSTEM: printf("<%3d> ", proc_number(rp)); break;
case P_DRIVER: printf("{%3d} ", proc_number(rp)); break;
case P_SERVER: printf("(%3d) ", proc_number(rp)); break;
default: printf(" %3d ", proc_number(rp));
}
printf("%3u %7lx%7lx %6lu%6lu%6uK%6uK%6uK %3x",
rp->p_priority,
(unsigned long) rp->p_reg.pc,
(unsigned long) rp->p_reg.sp,
rp->user_time, rp->sys_time,
click_to_round_k(text), click_to_round_k(data),
click_to_round_k(size),
rp->p_flags);
if (rp->p_flags & RECEIVING) {
printf(" %-7.7s", proc_name(rp->p_getfrom));
} else
if (rp->p_flags & SENDING) {
printf(" S:%-5.5s", proc_name(rp->p_sendto));
} else
if (rp->p_flags == 0) {
printf(" ");
}
printf(" %s\n", rp->p_name);
}
if (rp == END_PROC_ADDR) rp = BEG_PROC_ADDR; else printf("--more--\r");
oldrp = rp;
}
#endif /* (CHIP == INTEL) */
/*===========================================================================*
* memmap_dmp *
*===========================================================================*/
PRIVATE void memmap_dmp()
{
register struct proc *rp;
static struct proc *oldrp = cproc_addr(HARDWARE);
int r, n = 0;
phys_clicks size;
/* First obtain a fresh copy of the current process table. */
if ((r = sys_getproctab(proc)) != OK) {
report("warning: couldn't get copy of process table", r);
return;
}
printf("\n--proc name- -----text----- -----data----- ----stack----- -size-\n");
for (rp = oldrp; rp < END_PROC_ADDR; rp++) {
if (isemptyp(rp)) continue;
if (++n > 23) break;
size = rp->p_memmap[T].mem_len
+ ((rp->p_memmap[S].mem_phys + rp->p_memmap[S].mem_len)
- rp->p_memmap[D].mem_phys);
printf("%3d %-7.7s %4x %4x %4x %4x %4x %4x %4x %4x %4x %5uK\n",
proc_number(rp),
rp->p_name,
rp->p_memmap[T].mem_vir, rp->p_memmap[T].mem_phys, rp->p_memmap[T].mem_len,
rp->p_memmap[D].mem_vir, rp->p_memmap[D].mem_phys, rp->p_memmap[D].mem_len,
rp->p_memmap[S].mem_vir, rp->p_memmap[S].mem_phys, rp->p_memmap[S].mem_len,
click_to_round_k(size));
}
if (rp == END_PROC_ADDR) rp = cproc_addr(HARDWARE);
else printf("--more--\r");
oldrp = rp;
}
/*===========================================================================*
* proc_name *
*===========================================================================*/
PRIVATE char *proc_name(proc_nr)
int proc_nr;
{
if (proc_nr == ANY) return "ANY";
return cproc_addr(proc_nr)->p_name;
}
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