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Add "show allpcpu" to DDB, which prints the current CPU id followed by

Browse source 
the per-cpu data for all CPUs.  This is easier to ask users to do than
"figure out how many CPUs you have, now run show pcpu, then run it
once for each CPU you have".

MFC after:	3 days
This commit is contained in:
Robert Watson 2005-09-26 16:55:11 +00:00
parent 5dd35f9e69
commit 9b7915859d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=150576
1 changed files with 38 additions and 14 deletions
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52
sys/kern/subr_pcpu.c
View file

@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
#include <sys/lock.h>
#include <sys/pcpu.h>
#include <sys/proc.h>
#include <sys/smp.h>
#include <ddb/ddb.h>
static struct pcpu *cpuid_to_pcpu[MAXCPU];
@ -97,21 +98,12 @@ pcpu_find(u_int cpuid)
}
#ifdef DDB
DB_SHOW_COMMAND(pcpu, db_show_pcpu)
{
struct pcpu *pc;
struct thread *td;
int id;
if (have_addr)
id = ((addr >> 4) % 16) * 10 + (addr % 16);
else
id = PCPU_GET(cpuid);
pc = pcpu_find(id);
if (pc == NULL) {
db_printf("CPU %d not found\n", id);
return;
}
static void
show_pcpu(struct pcpu *pc)
{
struct thread *td;
db_printf("cpuid = %d\n", pc->pc_cpuid);
db_printf("curthread = ");
td = pc->pc_curthread;
@ -142,4 +134,36 @@ DB_SHOW_COMMAND(pcpu, db_show_pcpu)
witness_list_locks(&pc->pc_spinlocks);
#endif
}
DB_SHOW_COMMAND(pcpu, db_show_pcpu)
{
struct pcpu *pc;
int id;
if (have_addr)
id = ((addr >> 4) % 16) * 10 + (addr % 16);
else
id = PCPU_GET(cpuid);
pc = pcpu_find(id);
if (pc == NULL) {
db_printf("CPU %d not found\n", id);
return;
}
show_pcpu(pc);
}
DB_SHOW_COMMAND(allpcpu, db_show_cpu_all)
{
struct pcpu *pc;
int id;
db_printf("Current CPU: %d\n\n", PCPU_GET(cpuid));
for (id = 0; id < mp_maxid; id++) {
pc = pcpu_find(id);
if (pc != NULL) {
show_pcpu(pc);
db_printf("\n");
}
}
}
#endif