35a108b911
this change
- makes panic() variadic, doing full printf() formatting -
no more NO_NUM, and no more separate printf() statements
needed to print extra info (or something in hex) before panicing
- unifies panic() - same panic() name and usage for everyone -
vm, kernel and rest have different names/syntax currently
in order to implement their own luxuries, but no longer
- throws out the 1st argument, to make source less noisy.
the panic() in syslib retrieves the server name from the kernel
so it should be clear enough who is panicing; e.g.
panic("sigaction failed: %d", errno);
looks like:
at_wini(73130): panic: sigaction failed: 0
syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
- throws out report() - printf() is more convenient and powerful
- harmonizes/fixes the use of panic() - there were a few places
that used printf-style formatting (didn't work) and newlines
(messes up the formatting) in panic()
- throws out a few per-server panic() functions
- cleans up a tie-in of tty with panic()
merging printf() and panic() statements to be done incrementally.
120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/* Debugging dump procedures for the VM server. */
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#include "inc.h"
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#include <sys/mman.h>
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#include <minix/vm.h>
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#include <timers.h>
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#include "../../kernel/proc.h"
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#define LINES 24
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PRIVATE void print_region(struct vm_region_info *vri)
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{
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char c;
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switch (vri->vri_seg) {
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case T: c = 'T'; break;
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case D: c = 'D'; break;
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default: c = '?';
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}
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printf(" %c %08lx-%08lx %c%c%c %c (%lu kB)\n", c, vri->vri_addr,
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vri->vri_addr + vri->vri_length,
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(vri->vri_prot & PROT_READ) ? 'r' : '-',
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(vri->vri_prot & PROT_WRITE) ? 'w' : '-',
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(vri->vri_prot & PROT_EXEC) ? 'x' : '-',
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(vri->vri_flags & MAP_SHARED) ? 's' : 'p',
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vri->vri_length / 1024L);
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}
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PUBLIC void vm_dmp()
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{
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static struct proc proc[NR_TASKS + NR_PROCS];
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static struct vm_region_info vri[LINES];
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struct vm_stats_info vsi;
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struct vm_usage_info vui;
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static int prev_i = -1;
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static vir_bytes prev_base = 0;
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int r, r2, i, j, first, n = 0;
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if (prev_i == -1) {
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if ((r = vm_info_stats(&vsi)) != OK) {
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printf("IS: warning: couldn't talk to VM: %d\n", r);
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return;
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}
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printf("Total %u kB, free %u kB, largest free area %u kB\n",
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vsi.vsi_total * (vsi.vsi_pagesize / 1024),
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vsi.vsi_free * (vsi.vsi_pagesize / 1024),
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vsi.vsi_largest * (vsi.vsi_pagesize / 1024));
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n++;
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printf("\n");
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n++;
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prev_i++;
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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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for (i = prev_i; i < NR_TASKS + NR_PROCS && n < LINES; i++, prev_base = 0) {
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if (i < NR_TASKS || isemptyp(&proc[i])) continue;
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/* The first batch dump for each process contains a header line. */
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first = prev_base == 0;
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r = vm_info_region(proc[i].p_endpoint, vri, LINES - first, &prev_base);
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if (r < 0) {
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printf("Process %d (%s): error %d\n",
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proc[i].p_endpoint, proc[i].p_name, r);
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n++;
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continue;
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}
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if (first) {
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/* The entire batch should fit on the screen. */
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if (n + 1 + r > LINES) {
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prev_base = 0; /* restart on next page */
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break;
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}
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if ((r2 = vm_info_usage(proc[i].p_endpoint, &vui)) != OK) {
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printf("Process %d (%s): error %d\n",
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proc[i].p_endpoint, proc[i].p_name, r2);
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n++;
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continue;
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}
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printf("Process %d (%s): total %lu kB, common %lu kB, "
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"shared %lu kB\n",
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proc[i].p_endpoint, proc[i].p_name,
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vui.vui_total / 1024L, vui.vui_common / 1024L,
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vui.vui_shared / 1024L);
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n++;
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}
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for (j = 0; j < r; j++) {
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print_region(&vri[j]);
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n++;
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}
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if (n > LINES) printf("IS: internal error\n");
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if (n == LINES) break;
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/* This may have to wipe out the "--more--" from below. */
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printf(" \n");
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n++;
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}
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if (i >= NR_TASKS + NR_PROCS) {
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i = -1;
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prev_base = 0;
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}
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else printf("--more--\r");
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prev_i = i;
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}
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