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- Abolish the 'show ktr_first' and 'show ktr_next' commands.

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- Add pager capability to the 'show ktr' command.  It functions much like
  'ps': Enter at the prompt displays one more entry, Space displays
  another page, and any other key quits.
This commit is contained in:
John Baldwin 2001-02-20 09:53:27 +00:00
parent 2fbfac2739
commit 591faa2e45
1 changed files with 39 additions and 41 deletions
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80
sys/kern/kern_ktr.c
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@ -185,40 +185,36 @@ static struct tstate tstate;
static int db_ktr_verbose;
static int db_mach_vtrace(void);
DB_SHOW_COMMAND(ktr_first, db_ktr_first)
{
#define NUM_LINES_PER_PAGE 18
DB_SHOW_COMMAND(ktr, db_ktr_all)
{
int c, lines;
lines = NUM_LINES_PER_PAGE;
tstate.cur = (ktr_idx - 1) & (KTR_ENTRIES - 1);
tstate.first = -1;
if (strcmp(modif, "v") == 0)
db_ktr_verbose = 1;
else
db_ktr_verbose = 0;
db_mach_vtrace();
return;
}
DB_SHOW_COMMAND(ktr, db_ktr_all)
{
int c;
db_ktr_first(addr, have_addr, count, modif);
while (db_mach_vtrace()) {
c = cncheckc();
if (c != -1)
break;
}
return;
}
DB_SHOW_COMMAND(ktr_next, db_ktr_next)
{
if (strcmp(modif, "v") == 0)
db_ktr_verbose ^= 1;
db_mach_vtrace();
while (db_mach_vtrace())
if (--lines == 0) {
db_printf("--More--");
c = cngetc();
db_printf("\r");
switch (c) {
case '\n': /* one more line */
lines = 1;
break;
case ' ': /* one more page */
lines = NUM_LINES_PER_PAGE;
break;
default:
db_printf("\n");
return;
}
}
}
static int
@ -234,27 +230,29 @@ db_mach_vtrace(void)
/* Skip over unused entries. */
#ifdef KTR_EXTEND
if (kp->ktr_desc[0] != '\0') {
if (kp->ktr_desc[0] == '\0') {
#else
if (kp->ktr_desc != NULL) {
if (kp->ktr_desc == NULL) {
#endif
db_printf("%d: ", tstate.cur);
if (db_ktr_verbose)
db_printf("%4ld.%06ld ", (long)kp->ktr_tv.tv_sec,
kp->ktr_tv.tv_nsec / 1000);
db_printf("--- End of trace buffer ---\n");
return (0);
}
db_printf("%d: ", tstate.cur);
if (db_ktr_verbose)
db_printf("%4ld.%06ld ", (long)kp->ktr_tv.tv_sec,
kp->ktr_tv.tv_nsec / 1000);
#ifdef KTR_EXTEND
#ifdef SMP
db_printf("cpu%d ", kp->ktr_cpu);
db_printf("cpu%d ", kp->ktr_cpu);
#endif
if (db_ktr_verbose)
db_printf("%s.%d\t", kp->ktr_filename, kp->ktr_line);
db_printf("%s", kp->ktr_desc);
if (db_ktr_verbose)
db_printf("%s.%d\t", kp->ktr_filename, kp->ktr_line);
db_printf("%s", kp->ktr_desc);
#else
db_printf(kp->ktr_desc, kp->ktr_parm1, kp->ktr_parm2,
kp->ktr_parm3, kp->ktr_parm4, kp->ktr_parm5);
db_printf(kp->ktr_desc, kp->ktr_parm1, kp->ktr_parm2, kp->ktr_parm3,
kp->ktr_parm4, kp->ktr_parm5);
#endif
db_printf("\n");
}
db_printf("\n");
if (tstate.first == -1)
tstate.first = tstate.cur;