392 lines
12 KiB
C
392 lines
12 KiB
C
/* Debugging dump procedures for the kernel. */
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#include "inc.h"
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#include <minix/timers.h>
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#include <assert.h>
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#include <machine/interrupt.h>
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#include <minix/endpoint.h>
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#include <minix/sysutil.h>
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#include <minix/sys_config.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 LINES 22
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#define PRINTRTS(rp) { \
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char *procname = ""; \
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printf(" %s", p_rts_flags_str(rp->p_rts_flags)); \
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if (rp->p_rts_flags & RTS_SENDING) \
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procname = proc_name(_ENDPOINT_P(rp->p_sendto_e)); \
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else if (rp->p_rts_flags & RTS_RECEIVING) \
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procname = proc_name(_ENDPOINT_P(rp->p_getfrom_e)); \
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printf(" %-7.7s", procname); \
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}
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static int pagelines;
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#define PROCLOOP(rp, oldrp) \
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pagelines = 0; \
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for (rp = oldrp; rp < END_PROC_ADDR; rp++) { \
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oldrp = BEG_PROC_ADDR; \
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if (isemptyp(rp)) continue; \
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if (++pagelines >= LINES) { oldrp = rp; printf("--more--\n"); 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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#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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static char *proc_name(int proc_nr);
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static char *s_traps_str(int flags);
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static char *s_flags_str(int flags);
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static 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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struct proc proc[NR_TASKS + NR_PROCS];
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struct priv priv[NR_SYS_PROCS];
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struct boot_image image[NR_BOOT_PROCS];
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extern struct minix_kerninfo *_minix_kerninfo;
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/*===========================================================================*
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* kmessages_dmp *
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*===========================================================================*/
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void kmessages_dmp()
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{
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struct kmessages *kmess; /* get copy of kernel messages */
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static char print_buf[_KMESS_BUF_SIZE+1]; /* this one is used to print */
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int start; /* calculate start of messages */
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int r;
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int size;
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assert(_minix_kerninfo);
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kmess = _minix_kerninfo->kmessages;
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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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size = kmess->km_size;
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while (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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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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void monparams_dmp()
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{
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char val[MULTIBOOT_PARAM_BUF_SIZE];
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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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printf("IS: warning: couldn't get copy of monitor params: %d\n", 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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void irqtab_dmp()
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{
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int i,r;
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struct irq_hook irq_hooks[NR_IRQ_HOOKS];
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int irq_actids[NR_IRQ_VECTORS];
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struct irq_hook *e; /* irq tab entry */
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if ((r = sys_getirqhooks(irq_hooks)) != OK) {
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printf("IS: warning: couldn't get copy of irq hooks: %d\n", r);
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return;
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}
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if ((r = sys_getirqactids(irq_actids)) != OK) {
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printf("IS: warning: couldn't get copy of irq mask: %d\n", r);
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return;
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}
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#if 0
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printf("irq_actids:");
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for (i= 0; i<NR_IRQ_VECTORS; i++)
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printf(" [%d] = 0x%08x", i, irq_actids[i]);
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printf("\n");
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#endif
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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 nr- -policy- -notify id- -masked-\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_e==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_e);
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printf(" (%02d) ", e->irq);
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printf(" %s", (e->policy & IRQ_REENABLE) ? "reenable" : " - ");
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printf(" %4lu", e->notify_id);
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if (irq_actids[e->irq] & e->id)
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printf(" masked");
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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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* image_dmp *
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*===========================================================================*/
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void image_dmp()
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{
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int m, r;
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struct boot_image *ip;
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if ((r = sys_getimage(image)) != OK) {
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printf("IS: warning: couldn't get copy of image table: %d\n", 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 -stack-\n");
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for (m=0; m<NR_BOOT_PROCS; m++) {
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ip = &image[m];
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printf("%8s %4d\n", ip->proc_name, ip->proc_nr);
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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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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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printf("IS: warning: couldn't get copy of kernel info struct: %d\n", r);
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return;
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}
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if ((r = sys_getmachine(&machine)) != OK) {
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printf("IS: warning: couldn't get copy of kernel machine struct: %d\n", r);
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return;
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}
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printf("Dump of kinfo structure.\n\n");
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printf("Kernel info structure:\n");
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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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printf("\n");
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}
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/*===========================================================================*
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* s_flags_str *
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*===========================================================================*/
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static 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 & BILLABLE) ? 'B' : '-';
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str[2] = (flags & DYN_PRIV_ID) ? 'D' : '-';
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str[3] = (flags & SYS_PROC) ? 'S' : '-';
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str[4] = (flags & CHECK_IO_PORT) ? 'I' : '-';
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str[5] = (flags & CHECK_IRQ) ? 'Q' : '-';
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str[6] = (flags & CHECK_MEM) ? 'M' : '-';
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str[7] = '\0';
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return str;
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}
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/*===========================================================================*
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* s_traps_str *
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*===========================================================================*/
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static 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 << SEND)) ? 'S' : '-';
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str[1] = (flags & (1 << SENDA)) ? 'A' : '-';
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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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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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int r, i;
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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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printf("IS: warning: couldn't get copy of system privileges table: %d\n", r);
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return;
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}
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if ((r = sys_getproctab(proc)) != OK) {
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printf("IS: warning: couldn't get copy of process table: %d\n", r);
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return;
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}
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printf("-nr- -id- -name-- -flags- traps grants -ipc_to--"
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" -kernel calls-\n");
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PROCLOOP(rp, oldrp)
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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 && !isemptyp(rp)) {
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sp = &priv[USER_PRIV_ID];
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}
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printf("(%02u) %-7.7s %s %s %6d",
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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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sp->s_grant_entries);
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for (i=0; i < NR_SYS_PROCS; i += BITCHUNK_BITS) {
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printf(" %08x", get_sys_bits(sp->s_ipc_to, i));
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}
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printf(" ");
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for (i=0; i < NR_SYS_CALLS; i += BITCHUNK_BITS) {
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printf(" %08x", sp->s_k_call_mask[i/BITCHUNK_BITS]);
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}
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printf("\n");
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}
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}
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/*===========================================================================*
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* p_rts_flags_str *
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*===========================================================================*/
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static 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 & RTS_PROC_STOP) ? 's' : '-';
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str[1] = (flags & RTS_SENDING) ? 'S' : '-';
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str[2] = (flags & RTS_RECEIVING) ? 'R' : '-';
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str[3] = (flags & RTS_SIGNALED) ? 'I' : '-';
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str[4] = (flags & RTS_SIG_PENDING) ? 'P' : '-';
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str[5] = (flags & RTS_P_STOP) ? 'T' : '-';
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str[6] = (flags & RTS_NO_PRIV) ? 'p' : '-';
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str[7] = '\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 defined(__i386__)
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void proctab_dmp(void)
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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;
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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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printf("IS: warning: couldn't get copy of process table: %d\n", r);
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return;
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}
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printf("\n-nr-----gen---endpoint-name--- -prior-quant- -user----sys-rtsflags-from/to-\n");
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PROCLOOP(rp, oldrp)
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printf(" %5d %10d ", _ENDPOINT_G(rp->p_endpoint), rp->p_endpoint);
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printf("%-8.8s %5u %5u %6lu %6lu ",
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rp->p_name,
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rp->p_priority,
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rp->p_quantum_size_ms,
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rp->p_user_time, rp->p_sys_time);
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PRINTRTS(rp);
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printf("\n");
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}
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}
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#endif /* defined(__i386__) */
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#if defined(__arm__)
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void proctab_dmp(void)
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{
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/* LSC FIXME: Not implemented for arm */
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}
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#endif /* defined(__arm__) */
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/*===========================================================================*
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* procstack_dmp *
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*===========================================================================*/
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void procstack_dmp()
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{
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/* Proc table dump, with stack */
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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;
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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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printf("IS: warning: couldn't get copy of process table: %d\n", r);
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return;
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}
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printf("\n-nr-rts flags-- --stack--\n");
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PROCLOOP(rp, oldrp)
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PRINTRTS(rp);
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printf("\n"); pagelines++;
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sys_diagctl_stacktrace(rp->p_endpoint);
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}
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}
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/*===========================================================================*
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* proc_name *
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*===========================================================================*/
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static char *proc_name(proc_nr)
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int proc_nr;
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{
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struct proc *p;
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if (proc_nr == ANY) return "ANY";
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if (proc_nr == NONE) return "NONE"; /* bogus */
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if (proc_nr < -NR_TASKS || proc_nr >= NR_PROCS) return "BOGUS";
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p = proc_addr(proc_nr);
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if (isemptyp(p)) return "EMPTY"; /* bogus */
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return p->p_name;
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}
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