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Split 'show vnets' into 'show vnet' and 'show all vnets'.

Browse source 
While here adjust some db_printf format string.

Document the two show commands in ddb.4.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Bjoern A. Zeeb 2016-05-18 14:43:17 +00:00
parent aaeb188af3
commit 5fa0728b7d
2 changed files with 44 additions and 14 deletions
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14
share/man/man4/ddb.4
View file

@ -60,7 +60,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd January 15, 2016
.Dd May 18, 2016
.Dt DDB 4
.Os
.Sh NAME
@ -542,6 +542,11 @@ Output is similar to
but also includes the address of the TTY structure.
.\"
.Pp
.It Ic show Cm all vnets
Show the same output as "show vnet" does, but lists all
virtualized network stacks within the system.
.\"
.Pp
.It Ic show Cm allchains
Show the same information like "show lockchain" does, but
for every thread in the system.
@ -1060,6 +1065,13 @@ Currently, it is not possible to use this command when
is compiled in the kernel.
.\"
.Pp
.It Ic show Cm vnet Ar addr
Prints virtualized network stack
.Vt struct vnet
structure present at the address
.Ar addr .
.\"
.Pp
.It Ic show Cm vnode Op Ar addr
Prints vnode
.Vt struct vnode

44
sys/net/vnet.c
View file

@ -690,27 +690,45 @@ vnet_log_recursion(struct vnet *old_vnet, const char *old_fn, int line)
* DDB(4).
*/
#ifdef DDB
DB_SHOW_COMMAND(vnets, db_show_vnets)
static void
db_vnet_print(struct vnet *vnet)
{
db_printf("vnet = %p\n", vnet);
db_printf(" vnet_magic_n = %#08x (%s, orig %#08x)\n",
vnet->vnet_magic_n,
(vnet->vnet_magic_n == VNET_MAGIC_N) ?
"ok" : "mismatch", VNET_MAGIC_N);
db_printf(" vnet_ifcnt = %u\n", vnet->vnet_ifcnt);
db_printf(" vnet_sockcnt = %u\n", vnet->vnet_sockcnt);
db_printf(" vnet_data_mem = %p\n", vnet->vnet_data_mem);
db_printf(" vnet_data_base = %#jx\n",
(uintmax_t)vnet->vnet_data_base);
db_printf("\n");
}
DB_SHOW_ALL_COMMAND(vnets, db_show_all_vnets)
{
VNET_ITERATOR_DECL(vnet_iter);
VNET_FOREACH(vnet_iter) {
db_printf("vnet = %p\n", vnet_iter);
db_printf(" vnet_magic_n = 0x%x (%s, orig 0x%x)\n",
vnet_iter->vnet_magic_n,
(vnet_iter->vnet_magic_n == VNET_MAGIC_N) ?
"ok" : "mismatch", VNET_MAGIC_N);
db_printf(" vnet_ifcnt = %u\n", vnet_iter->vnet_ifcnt);
db_printf(" vnet_sockcnt = %u\n", vnet_iter->vnet_sockcnt);
db_printf(" vnet_data_mem = %p\n", vnet_iter->vnet_data_mem);
db_printf(" vnet_data_base = 0x%jx\n",
(uintmax_t)vnet_iter->vnet_data_base);
db_printf("\n");
db_vnet_print(vnet_iter);
if (db_pager_quit)
break;
}
}
DB_SHOW_COMMAND(vnet, db_show_vnet)
{
if (!have_addr) {
db_printf("usage: show vnet <struct vnet *>\n");
return;
}
db_vnet_print((struct vnet *)addr);
}
static void
db_show_vnet_print_vs(struct vnet_sysinit *vs, int ddb)
{
@ -734,7 +752,7 @@ db_show_vnet_print_vs(struct vnet_sysinit *vs, int ddb)
sym = db_search_symbol((vm_offset_t)vs->func, DB_STGY_PROC, &offset);
db_symbol_values(sym, &funcname, NULL);
xprint("%s(%p)\n", (vsname != NULL) ? vsname : "", vs);
xprint(" 0x%08x 0x%08x\n", vs->subsystem, vs->order);
xprint(" %#08x %#08x\n", vs->subsystem, vs->order);
xprint(" %p(%s)(%p)\n",
vs->func, (funcname != NULL) ? funcname : "", vs->arg);
#undef xprint