74711a3b14
enforced. If a call is denied, this will be kprinted. Please report any such errors, so that I can adjust the mask before returning errors instead of warnings. Wrote CMOS driver. All CMOS code from FS has been removed. Currently the driver only supports get time calls. Set time is left out as an exercise for the book readers ... startup scripts were updated because the CMOS driver is needed early on. (IS got same treatment.) Don't forget to run MAKEDEV cmos in /dev/, otherwise the driver cannot be loaded.
555 lines
17 KiB
C
555 lines
17 KiB
C
/* Debugging dump procedures for the kernel. */
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#include "is.h"
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#include <timers.h>
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#include <ibm/interrupt.h>
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#include "../../kernel/const.h"
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#include "../../kernel/config.h"
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#include "../../kernel/debug.h"
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#include "../../kernel/type.h"
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#include "../../kernel/proc.h"
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#include "../../kernel/ipc.h"
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#define click_to_round_k(n) \
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((unsigned) ((((unsigned long) (n) << CLICK_SHIFT) + 512) / 1024))
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/* Declare some local dump procedures. */
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FORWARD _PROTOTYPE( char *proc_name, (int proc_nr) );
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FORWARD _PROTOTYPE( char *s_traps_str, (int flags) );
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FORWARD _PROTOTYPE( char *s_flags_str, (int flags) );
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FORWARD _PROTOTYPE( char *p_rts_flags_str, (int flags) );
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/* Some global data that is shared among several dumping procedures.
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* Note that the process table copy has the same name as in the kernel
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* so that most macros and definitions from proc.h also apply here.
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*/
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PUBLIC struct proc proc[NR_TASKS + NR_PROCS];
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PUBLIC struct priv priv[NR_SYS_PROCS];
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PUBLIC struct boot_image image[NR_BOOT_PROCS];
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/*===========================================================================*
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* timing_dmp *
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*===========================================================================*/
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PUBLIC void timing_dmp()
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{
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#if ! DEBUG_TIME_LOCKS
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printf("Enable the DEBUG_TIME_LOCKS definition in src/kernel/config.h\n");
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#else
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static struct lock_timingdata timingdata[TIMING_CATEGORIES];
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int r, c, f, skipped = 0, printed = 0, maxlines = 23, x = 0;
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static int offsetlines = 0;
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if ((r = sys_getlocktimings(&timingdata[0])) != OK) {
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report("IS","warning: couldn't get copy of lock timings", r);
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return;
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}
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for(c = 0; c < TIMING_CATEGORIES; c++) {
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int b;
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if(!timingdata[c].lock_timings_range[0] || !timingdata[c].binsize)
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continue;
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x = printf("%-*s: misses %lu, resets %lu, measurements %lu: ",
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TIMING_NAME, timingdata[c].names,
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timingdata[c].misses,
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timingdata[c].resets,
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timingdata[c].measurements);
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for(b = 0; b < TIMING_POINTS; b++) {
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int w;
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if(!timingdata[c].lock_timings[b])
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continue;
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x += (w = printf(" %5d: %5d", timingdata[c].lock_timings_range[0] +
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b*timingdata[c].binsize,
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timingdata[c].lock_timings[b]));
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if(x + w >= 80) { printf("\n"); x = 0; }
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}
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if(x > 0) printf("\n");
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}
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#endif
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}
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/*===========================================================================*
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* kmessages_dmp *
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*===========================================================================*/
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PUBLIC void kmessages_dmp()
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{
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struct kmessages kmess; /* get copy of kernel messages */
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char print_buf[KMESS_BUF_SIZE+1]; /* this one is used to print */
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int next, size; /* vars returned by sys_kmess() */
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int start; /* calculate start of messages */
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int r;
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/* Try to get a copy of the kernel messages. */
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if ((r = sys_getkmessages(&kmess)) != OK) {
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report("IS","warning: couldn't get copy of kmessages", r);
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return;
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}
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/* Try to print the kernel messages. First determine start and copy the
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* buffer into a print-buffer. This is done because the messages in the
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* copy may wrap (the kernel buffer is circular).
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*/
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start = ((kmess.km_next + KMESS_BUF_SIZE) - kmess.km_size) % KMESS_BUF_SIZE;
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r = 0;
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while (kmess.km_size > 0) {
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print_buf[r] = kmess.km_buf[(start+r) % KMESS_BUF_SIZE];
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r ++;
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kmess.km_size --;
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}
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print_buf[r] = 0; /* make sure it terminates */
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printf("Dump of all messages generated by the kernel.\n\n");
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printf("%s", print_buf); /* print the messages */
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}
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/*===========================================================================*
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* monparams_dmp *
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*===========================================================================*/
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PUBLIC void monparams_dmp()
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{
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char val[1024];
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char *e;
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int r;
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/* Try to get a copy of the boot monitor parameters. */
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if ((r = sys_getmonparams(val, sizeof(val))) != OK) {
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report("IS","warning: couldn't get copy of monitor params", r);
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return;
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}
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/* Append new lines to the result. */
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e = val;
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do {
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e += strlen(e);
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*e++ = '\n';
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} while (*e != 0);
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/* Finally, print the result. */
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printf("Dump of kernel environment strings set by boot monitor.\n");
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printf("\n%s\n", val);
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}
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/*===========================================================================*
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* irqtab_dmp *
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*===========================================================================*/
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PUBLIC void irqtab_dmp()
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{
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int i,j,r;
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struct irq_hook irq_hooks[NR_IRQ_HOOKS];
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struct irq_hook *e; /* irq tab entry */
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char *irq[] = {
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"clock", /* 00 */
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"keyboard", /* 01 */
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"cascade", /* 02 */
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"rs232", /* 03 */
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"rs232", /* 04 */
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"NIC(eth)", /* 05 */
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"floppy", /* 06 */
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"printer", /* 07 */
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"", /* 08 */
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"", /* 09 */
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"", /* 10 */
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"", /* 11 */
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"", /* 12 */
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"", /* 13 */
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"at_wini_0", /* 14 */
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"at_wini_1", /* 15 */
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};
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if ((r = sys_getirqhooks(irq_hooks)) != OK) {
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report("IS","warning: couldn't get copy of irq hooks", r);
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return;
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}
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printf("IRQ policies dump shows use of kernel's IRQ hooks.\n");
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printf("-h.id- -proc.nr- -IRQ vector (nr.)- -policy- -notify id-\n");
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for (i=0; i<NR_IRQ_HOOKS; i++) {
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e = &irq_hooks[i];
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printf("%3d", i);
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if (e->proc_nr==NONE) {
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printf(" <unused>\n");
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continue;
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}
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printf("%10d ", e->proc_nr);
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printf(" %9.9s (%02d) ", irq[e->irq], e->irq);
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printf(" %s", (e->policy & IRQ_REENABLE) ? "reenable" : " - ");
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printf(" %d\n", e->notify_id);
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}
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printf("\n");
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}
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/*===========================================================================*
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* image_dmp *
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*===========================================================================*/
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PUBLIC void image_dmp()
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{
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int m, i,j,r;
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struct boot_image *ip;
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static char ipc_to[BITCHUNK_BITS*2];
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if ((r = sys_getimage(image)) != OK) {
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report("IS","warning: couldn't get copy of image table", r);
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return;
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}
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printf("Image table dump showing all processes included in system image.\n");
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printf("---name-- -nr- -flags- -traps- -sq- ----pc- -stack- -ipc_to[0]--------\n");
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for (m=0; m<NR_BOOT_PROCS; m++) {
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ip = &image[m];
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for (i=j=0; i < BITCHUNK_BITS; i++, j++) {
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ipc_to[j] = (ip->ipc_to & (1<<i)) ? '1' : '0';
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if (i % 8 == 7) ipc_to[++j] = ' ';
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}
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ipc_to[j] = '\0';
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printf("%8s %4d %s %s %3d %7lu %7lu %s\n",
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ip->proc_name, ip->proc_nr,
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s_flags_str(ip->flags), s_traps_str(ip->trap_mask),
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ip->priority, (long)ip->initial_pc, ip->stksize, ipc_to);
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}
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printf("\n");
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}
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/*===========================================================================*
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* sched_dmp *
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*===========================================================================*/
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PUBLIC void sched_dmp()
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{
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struct proc *rdy_head[NR_SCHED_QUEUES];
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struct kinfo kinfo;
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register struct proc *rp;
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vir_bytes ptr_diff;
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int r;
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/* First obtain a scheduling information. */
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if ((r = sys_getschedinfo(proc, rdy_head)) != OK) {
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report("IS","warning: couldn't get copy of process table", r);
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return;
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}
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/* Then obtain kernel addresses to correct pointer information. */
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if ((r = sys_getkinfo(&kinfo)) != OK) {
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report("IS","warning: couldn't get kernel addresses", r);
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return;
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}
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/* Update all pointers. Nasty pointer algorithmic ... */
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ptr_diff = (vir_bytes) proc - (vir_bytes) kinfo.proc_addr;
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for (r=0;r<NR_SCHED_QUEUES; r++)
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if (rdy_head[r] != NIL_PROC)
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rdy_head[r] =
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(struct proc *)((vir_bytes) rdy_head[r] + ptr_diff);
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for (rp=BEG_PROC_ADDR; rp < END_PROC_ADDR; rp++)
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if (rp->p_nextready != NIL_PROC)
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rp->p_nextready =
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(struct proc *)((vir_bytes) rp->p_nextready + ptr_diff);
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/* Now show scheduling queues. */
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printf("Dumping scheduling queues.\n");
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for (r=0;r<NR_SCHED_QUEUES; r++) {
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rp = rdy_head[r];
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if(!rp) continue;
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printf("%2d: ", r);
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while (rp != NIL_PROC) {
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printf("%3d ", rp->p_nr);
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rp = rp->p_nextready;
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}
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printf("\n");
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}
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printf("\n");
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}
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/*===========================================================================*
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* kenv_dmp *
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*===========================================================================*/
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PUBLIC void kenv_dmp()
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{
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struct kinfo kinfo;
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struct machine machine;
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int r;
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if ((r = sys_getkinfo(&kinfo)) != OK) {
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report("IS","warning: couldn't get copy of kernel info struct", r);
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return;
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}
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if ((r = sys_getmachine(&machine)) != OK) {
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report("IS","warning: couldn't get copy of kernel machine struct", r);
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return;
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}
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printf("Dump of kinfo and machine structures.\n\n");
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printf("Machine structure:\n");
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printf("- pc_at: %3d\n", machine.pc_at);
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printf("- ps_mca: %3d\n", machine.ps_mca);
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printf("- processor: %3d\n", machine.processor);
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printf("- protected: %3d\n", machine.protected);
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printf("- vdu_ega: %3d\n", machine.vdu_ega);
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printf("- vdu_vga: %3d\n\n", machine.vdu_vga);
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printf("Kernel info structure:\n");
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printf("- code_base: %5u\n", kinfo.code_base);
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printf("- code_size: %5u\n", kinfo.code_size);
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printf("- data_base: %5u\n", kinfo.data_base);
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printf("- data_size: %5u\n", kinfo.data_size);
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printf("- proc_addr: %5u\n", kinfo.proc_addr);
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printf("- kmem_base: %5u\n", kinfo.kmem_base);
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printf("- kmem_size: %5u\n", kinfo.kmem_size);
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printf("- bootdev_base: %5u\n", kinfo.bootdev_base);
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printf("- bootdev_size: %5u\n", kinfo.bootdev_size);
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printf("- bootdev_mem: %5u\n", kinfo.bootdev_mem);
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printf("- params_base: %5u\n", kinfo.params_base);
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printf("- params_size: %5u\n", kinfo.params_size);
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printf("- nr_procs: %3u\n", kinfo.nr_procs);
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printf("- nr_tasks: %3u\n", kinfo.nr_tasks);
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printf("- release: %.6s\n", kinfo.release);
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printf("- version: %.6s\n", kinfo.version);
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#if DEBUG_LOCK_CHECK
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printf("- relocking: %d\n", kinfo.relocking);
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#endif
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printf("\n");
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}
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PRIVATE char *s_flags_str(int flags)
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{
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static char str[10];
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str[0] = (flags & PREEMPTIBLE) ? 'P' : '-';
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str[1] = (flags & RDY_Q_HEAD) ? 'Q' : '-';
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str[2] = (flags & BILLABLE) ? 'B' : '-';
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str[3] = (flags & SYS_PROC) ? 'S' : '-';
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str[4] = '-';
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str[5] = '\0';
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return str;
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}
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PRIVATE char *s_traps_str(int flags)
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{
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static char str[10];
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str[0] = (flags & (1 << ECHO)) ? 'E' : '-';
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str[1] = (flags & (1 << SEND)) ? 'S' : '-';
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str[2] = (flags & (1 << RECEIVE)) ? 'R' : '-';
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str[3] = (flags & (1 << SENDREC)) ? 'B' : '-';
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str[4] = (flags & (1 << NOTIFY)) ? 'N' : '-';
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str[5] = '\0';
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return str;
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}
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/*===========================================================================*
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* privileges_dmp *
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*===========================================================================*/
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PUBLIC void privileges_dmp()
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{
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register struct proc *rp;
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static struct proc *oldrp = BEG_PROC_ADDR;
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register struct priv *sp;
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static char ipc_to[NR_SYS_PROCS + 1 + NR_SYS_PROCS/8];
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int r, i,j, n = 0;
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/* First obtain a fresh copy of the current process and system table. */
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if ((r = sys_getprivtab(priv)) != OK) {
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report("IS","warning: couldn't get copy of system privileges table", r);
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return;
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}
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if ((r = sys_getproctab(proc)) != OK) {
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report("IS","warning: couldn't get copy of process table", r);
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return;
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}
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printf("\n--nr-id-name---- -flags- -traps- -ipc_to mask------------------------ \n");
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for (rp = oldrp; rp < END_PROC_ADDR; rp++) {
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if (isemptyp(rp)) continue;
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if (++n > 23) break;
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if (proc_nr(rp) == IDLE) printf("(%2d) ", proc_nr(rp));
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else if (proc_nr(rp) < 0) printf("[%2d] ", proc_nr(rp));
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else printf(" %2d ", proc_nr(rp));
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r = -1;
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for (sp = &priv[0]; sp < &priv[NR_SYS_PROCS]; sp++)
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if (sp->s_proc_nr == rp->p_nr) { r ++; break; }
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if (r == -1 && ! (rp->p_rts_flags & SLOT_FREE)) {
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sp = &priv[USER_PRIV_ID];
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}
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printf("(%02u) %-7.7s %s %s ",
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sp->s_id, rp->p_name,
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s_flags_str(sp->s_flags), s_traps_str(sp->s_trap_mask)
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);
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for (i=j=0; i < NR_SYS_PROCS; i++, j++) {
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ipc_to[j] = get_sys_bit(sp->s_ipc_to, i) ? '1' : '0';
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if (i % 8 == 7) ipc_to[++j] = ' ';
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}
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ipc_to[j] = '\0';
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printf(" %s \n", ipc_to);
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}
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if (rp == END_PROC_ADDR) rp = BEG_PROC_ADDR; else printf("--more--\r");
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oldrp = rp;
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}
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/*===========================================================================*
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* sendmask_dmp *
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*===========================================================================*/
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PUBLIC void sendmask_dmp()
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{
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register struct proc *rp;
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static struct proc *oldrp = BEG_PROC_ADDR;
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int r, i,j, n = 0;
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/* First obtain a fresh copy of the current process table. */
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if ((r = sys_getproctab(proc)) != OK) {
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report("IS","warning: couldn't get copy of process table", r);
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return;
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}
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printf("\n\n");
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printf("Sendmask dump for process table. User processes (*) don't have [].");
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printf("\n");
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printf("The rows of bits indicate to which processes each process may send.");
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printf("\n\n");
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#if DEAD_CODE
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printf(" ");
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for (j=proc_nr(BEG_PROC_ADDR); j< INIT_PROC_NR+1; j++) {
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printf("%3d", j);
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}
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printf(" *\n");
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for (rp = oldrp; rp < END_PROC_ADDR; rp++) {
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if (isemptyp(rp)) continue;
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if (++n > 20) break;
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printf("%8s ", rp->p_name);
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if (proc_nr(rp) == IDLE) printf("(%2d) ", proc_nr(rp));
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else if (proc_nr(rp) < 0) printf("[%2d] ", proc_nr(rp));
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else printf(" %2d ", proc_nr(rp));
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for (j=proc_nr(BEG_PROC_ADDR); j<INIT_PROC_NR+2; j++) {
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if (isallowed(rp->p_sendmask, j)) printf(" 1 ");
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else printf(" 0 ");
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}
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printf("\n");
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}
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if (rp == END_PROC_ADDR) { printf("\n"); rp = BEG_PROC_ADDR; }
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else printf("--more--\r");
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oldrp = rp;
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#endif
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}
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PRIVATE char *p_rts_flags_str(int flags)
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{
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static char str[10];
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str[0] = (flags & NO_MAP) ? 'M' : '-';
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str[1] = (flags & SENDING) ? 'S' : '-';
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str[2] = (flags & RECEIVING) ? 'R' : '-';
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str[3] = (flags & SIGNALED) ? 'S' : '-';
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str[4] = (flags & SIG_PENDING) ? 'P' : '-';
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str[5] = (flags & P_STOP) ? 'T' : '-';
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str[6] = '\0';
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return str;
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}
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/*===========================================================================*
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* proctab_dmp *
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*===========================================================================*/
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#if (CHIP == INTEL)
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PUBLIC void proctab_dmp()
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{
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/* Proc table dump */
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register struct proc *rp;
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static struct proc *oldrp = BEG_PROC_ADDR;
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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("IS","warning: couldn't get copy of process table", r);
|
|
return;
|
|
}
|
|
|
|
printf("\n--nr-name---- -prior-quant-##- -user---sys- -text---data---size- -rts flags-\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);
|
|
if (proc_nr(rp) == IDLE) printf("(%2d) ", proc_nr(rp));
|
|
else if (proc_nr(rp) < 0) printf("[%2d] ", proc_nr(rp));
|
|
else printf(" %2d ", proc_nr(rp));
|
|
printf(" %-8.8s %02u/%02u %02d/%02d %02u %6lu%6lu %6uK%6uK%6uK %s",
|
|
rp->p_name,
|
|
rp->p_priority, rp->p_max_priority,
|
|
rp->p_sched_ticks, rp->p_quantum_size,
|
|
rp->p_full_quantums,
|
|
rp->p_user_time, rp->p_sys_time,
|
|
click_to_round_k(text), click_to_round_k(data),
|
|
click_to_round_k(size),
|
|
p_rts_flags_str(rp->p_rts_flags));
|
|
if (rp->p_rts_flags & (SENDING|RECEIVING)) {
|
|
printf(" %-7.7s", proc_name(rp->p_getfrom));
|
|
}
|
|
printf("\n");
|
|
}
|
|
if (rp == END_PROC_ADDR) rp = BEG_PROC_ADDR; else printf("--more--\r");
|
|
oldrp = rp;
|
|
}
|
|
#endif /* (CHIP == INTEL) */
|
|
|
|
/*===========================================================================*
|
|
* memmap_dmp *
|
|
*===========================================================================*/
|
|
PUBLIC void memmap_dmp()
|
|
{
|
|
register struct proc *rp;
|
|
static struct proc *oldrp = proc;
|
|
int r, n = 0;
|
|
phys_clicks size;
|
|
|
|
/* First obtain a fresh copy of the current process table. */
|
|
if ((r = sys_getproctab(proc)) != OK) {
|
|
report("IS","warning: couldn't get copy of process table", r);
|
|
return;
|
|
}
|
|
|
|
printf("\n-nr/name--- --pc-- --sp-- -----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%7lx%7lx %4x %4x %4x %4x %4x %4x %4x %4x %4x %5uK\n",
|
|
proc_nr(rp),
|
|
rp->p_name,
|
|
(unsigned long) rp->p_reg.pc,
|
|
(unsigned long) rp->p_reg.sp,
|
|
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 = proc;
|
|
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;
|
|
}
|
|
|
|
|