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/* Debugging dump procedures for the VM server. */
#include "inc.h"
#include <sys/mman.h>
#include <minix/vm.h>
#include <minix/timers.h>
#include "kernel/proc.h"
#define LINES 24
static void print_region(struct vm_region_info *vri, int *n)
{
static int vri_count, vri_prev_set;
static struct vm_region_info vri_prev;
int is_repeat;
/* part of a contiguous identical run? */
is_repeat =
vri &&
vri_prev_set &&
vri->vri_prot == vri_prev.vri_prot &&
vri->vri_flags == vri_prev.vri_flags &&
vri->vri_length == vri_prev.vri_length &&
vri->vri_addr == vri_prev.vri_addr + vri_prev.vri_length;
if (vri) {
vri_prev_set = 1;
vri_prev = *vri;
} else {
vri_prev_set = 0;
}
if (is_repeat) {
vri_count++;
return;
}
if (vri_count > 0) {
printf(" (contiguously repeated %d more times)\n", vri_count);
(*n)++;
vri_count = 0;
}
/* NULL indicates the end of a list of mappings, nothing else to do */
if (!vri) return;
printf(" %08lx-%08lx %c%c%c (%lu kB)\n", vri->vri_addr,
vri->vri_addr + vri->vri_length,
(vri->vri_prot & PROT_READ) ? 'r' : '-',
(vri->vri_prot & PROT_WRITE) ? 'w' : '-',
(vri->vri_prot & PROT_EXEC) ? 'x' : '-',
vri->vri_length / 1024L);
(*n)++;
}
void
vm_dmp(void)
{
static struct proc proc[NR_TASKS + NR_PROCS];
static struct vm_region_info vri[LINES];
struct vm_stats_info vsi;
struct vm_usage_info vui;
static int prev_i = -1;
static vir_bytes prev_base = 0;
int r, r2, i, j, first, n = 0;
if (prev_i == -1) {
if ((r = vm_info_stats(&vsi)) != OK) {
printf("IS: warning: couldn't talk to VM: %d\n", r);
return;
}
printf("Total %lu kB, free %lu kB, largest free %lu kB, cached %lu kB\n",
vsi.vsi_total * (vsi.vsi_pagesize / 1024),
vsi.vsi_free * (vsi.vsi_pagesize / 1024),
vsi.vsi_largest * (vsi.vsi_pagesize / 1024),
vsi.vsi_cached * (vsi.vsi_pagesize / 1024));
n++;
printf("\n");
n++;
prev_i++;
}
if ((r = sys_getproctab(proc)) != OK) {
printf("IS: warning: couldn't get copy of process table: %d\n", r);
return;
}
for (i = prev_i; i < NR_TASKS + NR_PROCS && n < LINES; i++, prev_base = 0) {
if (i < NR_TASKS || isemptyp(&proc[i])) continue;
/* The first batch dump for each process contains a header line. */
first = prev_base == 0;
r = vm_info_region(proc[i].p_endpoint, vri, LINES - first, &prev_base);
if (r < 0) {
printf("Process %d (%s): error %d\n",
proc[i].p_endpoint, proc[i].p_name, r);
n++;
continue;
}
if (first) {
/* The entire batch should fit on the screen. */
if (n + 1 + r > LINES) {
prev_base = 0; /* restart on next page */
break;
}
if ((r2 = vm_info_usage(proc[i].p_endpoint, &vui)) != OK) {
printf("Process %d (%s): error %d\n",
proc[i].p_endpoint, proc[i].p_name, r2);
n++;
continue;
}
printf("Process %d (%s): total %lu kB, common %lu kB, "
"shared %lu kB\n",
proc[i].p_endpoint, proc[i].p_name,
vui.vui_total / 1024L, vui.vui_common / 1024L,
vui.vui_shared / 1024L);
n++;
}
while (r > 0) {
for (j = 0; j < r; j++) {
print_region(&vri[j], &n);
}
if (LINES - n - 1 <= 0) break;
r = vm_info_region(proc[i].p_endpoint, vri, LINES - n - 1,
&prev_base);
if (r < 0) {
printf("Process %d (%s): error %d\n",
proc[i].p_endpoint, proc[i].p_name, r);
n++;
}
}
print_region(NULL, &n);
if (n > LINES) printf("IS: internal error\n");
if (n == LINES) break;
/* This may have to wipe out the "--more--" from below. */
printf(" \n");
n++;
}
if (i >= NR_TASKS + NR_PROCS) {
i = -1;
prev_base = 0;
}
else printf("--more--\r");
prev_i = i;
}
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