Mark Johnston ea675a43f0 libexec/kgdb: Add new modules and install them together with debug info ... This change simplifies integration of gdb python scripts with our kernel debugging infrastructure. Rather than putting debugging scripts in /usr/libexec/kgdb, move them to <path-to-kernel-debug-symbols>/gdb, and add a kernel-gdb.py which automatically loads modules from that directory. kernel-gdb.py will be automatically executed by kgdb when loading kernel debug symbols (assuming a default configuration), so one no longer needs to do anything to use these modules. The change also adds a couple of new modules, vnet.py and pcpu.py, for conveniently accessing VNET symbols and PCPU/DPCPU fields, respectively. Note that these require a change to the kernel linker when accessing symbols from a loadable kernel module. sys/tools/gdb/README.txt describes the scheme in more detail and provides some rudiementary documentation for the commands and functions added by these modules. It should be updated when adding new features. sys/tools/gdb/selftest.py can be used to do some primitive testing of the modules. All it does is execute a number of gdb commands making use of commands and functions added by these modules. The developer is expected to verify that the commands complete without errors and that the output looks sane. Discussed with: kp, avg, jhb, glebius MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D50825		2025-10-03 14:32:09 +00:00
..
ac	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
accton	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
acpi	acpidump: do not use pointer arithmetic to check for overflow	2025-02-26 07:27:32 +02:00
adduser	rmuser.sh: Improve prompt consistency with adduser	2025-09-10 20:43:37 -04:00
apm	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
apmd	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
arp	manpages: prefer linking to xo_options.7 over xo_parse_args.3	2025-07-16 12:02:24 -06:00
audit	package: move OpenBSM auditing into its own package	2024-04-28 22:33:06 -06:00
auditd	package: move OpenBSM auditing into its own package	2024-04-28 22:33:06 -06:00
auditdistd	package: move OpenBSM auditing into its own package	2024-04-28 22:33:06 -06:00
auditreduce	package: move OpenBSM auditing into its own package	2024-04-28 22:33:06 -06:00
authpf	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
autofs	autofs: partial is also leaked.	2025-08-12 14:35:35 -06:00
bhyve	bhyve: assign a valid INTPIN to NVIDIA GPUs	2025-09-16 08:55:09 +02:00
bhyvectl	bhyvectl.8: Polish	2025-05-21 12:33:37 -04:00
bhyveload	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
binmiscctl	manuals: Fix typos in -offset for .Bd and .Bl	2024-10-03 14:49:31 -03:00
blacklistctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
blacklistd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
bluetooth	rtlbtfw.8: Fix typo	2025-08-06 11:28:31 -04:00
boot0cfg	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
bootparamd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
boottrace	spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD	2023-05-12 10:44:03 -06:00
bsdconfig	bsdconfig: Move to -bsdconfig package	2025-08-04 00:13:03 +01:00
bsdinstall	bsdinstall/pkgbase: Restore the kernel-dbg component	2025-10-02 02:37:35 +01:00
bsnmpd	bsnmpd: Fix an error message	2025-08-02 01:11:56 +02:00
btxld	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
camdd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
cdcontrol	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
certctl	certctl: Include sys/types.h	2025-09-09 13:47:42 +00:00
chkgrp	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
chown	move ch{own,grp}(8) and tee(1) to FreeBSD-runtime	2025-05-28 02:16:30 +01:00
chroot	kern: fix setgroups(2) and getgroups(2) to match other platforms	2025-08-14 23:06:09 -05:00
ckdist	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
clear_locks	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
config	config.5: Bump .Dd to reflect latest update	2025-06-16 14:59:08 -04:00
cpucontrol	cpucontrol: return selected revision from ucode_amd_find()	2025-09-18 08:11:03 -07:00
crashinfo	libexec/kgdb: Add new modules and install them together with debug info	2025-10-03 14:32:09 +00:00
cron	cron: Fix comment from "root's" to "system" crontab	2025-09-13 00:38:48 +00:00
crunch	shar: remove from the tree well in advance of the 15.0 release	2025-07-10 12:57:03 -05:00
ctladm	ctladm: Use require.kmods for cfiscsi	2025-07-23 10:24:33 -06:00
ctld	ctld: Add missing initializers for several class members	2025-09-02 14:40:30 -04:00
cxgbetool	cxgbetool(8): Updates for T7	2025-09-29 07:26:01 -07:00
daemon	daemon: tests: add a test for missed SIGTERM	2024-11-19 13:51:27 -06:00
dconschat	dconschat: Increase WARNS to 2	2024-11-03 15:18:39 -05:00
devctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
devinfo	devinfo.8: Document libxo support	2025-08-29 08:43:45 -04:00
diskinfo	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
dumpcis	Remove $FreeBSD$: two-line nroff pattern	2023-08-16 11:55:10 -06:00
editmap	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
edquota	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
efibootmgr	manuals: Fix "unusual .Xr" warnings with a script	2024-10-15 17:18:14 -03:00
efidp	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
efitable	efitable.8: Nits	2025-07-22 16:06:31 -04:00
efivar	efivar: Use struct guid_table instead of uuid_table	2025-05-01 11:55:14 -06:00
efiwake	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
etcupdate	etcupdate: Restrict access to the conflicts directory	2025-01-28 14:23:06 +00:00
extattr	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
extattrctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
fdcontrol	packages: move floppy utilities into a new package	2025-05-15 01:02:52 +01:00
fdformat	packages: move floppy utilities into a new package	2025-05-15 01:02:52 +01:00
fdread	packages: move floppy utilities into a new package	2025-05-15 01:02:52 +01:00
fdwrite	packages: move floppy utilities into a new package	2025-05-15 01:02:52 +01:00
fifolog	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
flowctl	Purge more stray embedded $FreeBSD$ strings	2023-09-25 07:54:56 -07:00
freebsd-update	freebsd-update: Library ordering	2025-09-23 14:05:27 -07:00
fstyp	fstyp: search for file system headers with the largest offset first	2024-12-03 23:45:09 -09:00
ftp-proxy	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
fwcontrol	fwcontrol: Allocate full fw_asyreq structures passed to the kernel	2024-07-19 13:09:32 -04:00
fwget	fwget: pci: video amd: correct glob matching entries	2025-09-01 07:41:30 +00:00
getfmac	getfmac.8: add missing cross-references	2025-07-23 00:02:11 -06:00
getpmac	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
gpioctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
gssd	kgssapi: Fix the kgssapi so that it can use MIT Kerberos	2025-08-07 14:02:32 -07:00
gstat	gstat(8): Fix typo in example to filter the results	2025-07-12 08:23:48 -06:00
hyperv	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
i2c	manuals: Remove trailing spaces	2024-11-04 11:26:14 -04:00
ifmcstat	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
inetd	Remove ftpd(8)	2025-09-29 22:53:34 +01:00
iostat	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
iovctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ip6addrctl	ip6addrctl(8): Teach ip6addrctl to attach and run itself in a jail	2025-01-29 18:00:07 +08:00
ipfwpcap	Remove $FreeBSD$: two-line nroff pattern	2023-08-16 11:55:10 -06:00
iscsid	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
jail	jail: Optionally allow audit session state to be configured in a jail	2025-09-16 15:48:25 +00:00
jexec	jail: add jexec -d, to specify a working directory	2025-03-05 02:14:47 -08:00
jls	jls: add a -c mode to check for a jail's existence	2025-07-25 22:13:43 -05:00
kbdcontrol	kbdcontrol: correct bell frequency for vt(4)	2024-11-01 11:54:40 -04:00
kbdmap	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
kldxref	libkldelf: add a private library for kernel/kld-related ELF parsing	2024-10-18 20:20:13 +00:00
lastlogin	manpages: prefer linking to xo_options.7 over xo_parse_args.3	2025-07-16 12:02:24 -06:00
lpr	kern: fix setgroups(2) and getgroups(2) to match other platforms	2025-08-14 23:06:09 -05:00
lptcontrol	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
mailstats	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
mailwrapper	manuals: Fix "unusual .Xr" warnings with a script	2024-10-15 17:18:14 -03:00
makefs	makefs: Calculate indirect block count properly for large files on ffs	2025-08-27 15:18:50 -04:00
makemap	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
manctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
memcontrol	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
mfiutil	Replace last few remaining MAN[1-8] with MAN	2025-07-26 12:00:02 +02:00
mixer	packages: Add a sound package	2025-10-02 02:37:35 +01:00
mld6query	usr.sbin: Automated cleanup of cdefs and other formatting	2023-11-26 22:24:01 -07:00
mlx5tool	manuals: Misc macro typos	2024-09-21 05:25:15 -06:00
mlxcontrol	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
mount_smbfs	Move mntopts(3) suppport into libutil	2025-04-22 22:51:42 +01:00
mountd	exports.5: Add a paragraph clarifying the use of "V4:"	2025-08-25 18:38:54 -07:00
moused	moused(8): Add command line option to restrict interface type	2025-09-21 16:14:48 +03:00
mpsutil	mpsutil: Clean up libutil deps	2024-01-24 17:10:24 -05:00
mptable	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
mptutil	mptutil: Capture CAM errors from bus rescan	2025-02-04 20:54:26 -07:00
mtest	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ndp	sys/netinet6: Implement RFC 7217	2025-09-20 14:31:44 +02:00
newsyslog	Remove ftpd(8)	2025-09-29 22:53:34 +01:00
nfscbd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
nfsd	nfsd, rpcbind: add -P option to support pidfile path	2025-06-09 15:24:07 +00:00
nfsdumpstate	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
nfsrevoke	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
nfsuserd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ngctl	ngctl: Fix build without JAIL	2025-09-10 12:00:05 +08:00
nghook	Remove $FreeBSD$: two-line nroff pattern	2023-08-16 11:55:10 -06:00
nmtree	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
nologin	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
nscd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ntp	leap-seconds: Update to leap-seconds.3960835200 from IERS	2025-09-08 15:04:22 -07:00
nvram	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ofwdump	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
pciconf	pciconf(8): Dump the correct number of bytes	2025-05-19 12:49:27 -07:00
periodic	periodic: move some periodic scripts to their packages	2025-05-15 01:02:52 +01:00
pkg	pkg(7): Add support for pkg+ prefix to bootstrap pubkey	2025-09-11 09:03:48 +02:00
pmc	libpmc: Move libpmc and utils to a new pmc package	2025-09-23 23:06:33 +01:00
pmcannotate	libpmc: Move libpmc and utils to a new pmc package	2025-09-23 23:06:33 +01:00
pmccontrol	libpmc: Move libpmc and utils to a new pmc package	2025-09-23 23:06:33 +01:00
pmcstat	libpmc: Move libpmc and utils to a new pmc package	2025-09-23 23:06:33 +01:00
pmcstudy	libpmc: Move libpmc and utils to a new pmc package	2025-09-23 23:06:33 +01:00
pnfsdscopymr	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
pnfsdsfile	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
pnfsdskill	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
pnpinfo	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
powerd	packages: Move powerd to its own package	2025-09-23 23:06:32 +01:00
ppp	SPDX: Tag BSD-4.3TAHOE	2025-05-21 12:37:10 -04:00
pppctl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
praliases	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
praudit	praudit: correct test case	2024-11-04 08:57:13 -05:00
prometheus_sysctl_exporter	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
pstat	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
pw	pw: Add a metalog output mode	2025-09-18 22:42:16 +00:00
pwd_mkdb	There's no mkpasswd(8) man page any more. Replace Xr with plain name.	2025-04-19 19:45:16 +02:00
pwm	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
quot	Standardize the definition of a UFS dinode.	2025-01-27 17:39:45 -08:00
quotaon	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rarpd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
repquota	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rip6query	packages: move route(6)d to the rip package	2025-08-07 13:36:59 +01:00
rmt	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
route6d	packages: move route(6)d to the rip package	2025-08-07 13:36:59 +01:00
rpc.lockd	rpc.lockd: avoid embedding assumptions about cr_groups[0]	2025-07-24 09:59:07 -05:00
rpc.statd	rpc.statd: move to nfs package	2025-05-05 16:39:25 +01:00
rpc.tlsclntd	rpcsec_tls: cleanup the rpctls_syscall()	2025-02-01 01:00:28 -08:00
rpc.tlsservd	rpc.tlsservd: fix on a machine with just one CPU	2025-05-20 19:54:38 -07:00
rpc.umntall	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rpc.yppasswdd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rpc.ypupdated	Revert "Remove Secure RPC DES authentication"	2025-08-15 17:59:18 +01:00
rpc.ypxfrd	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rpcbind	rpcbind: Code cleanup	2025-08-07 03:23:19 +02:00
rrenumd	Remove $FreeBSD$: two-line nroff pattern	2023-08-16 11:55:10 -06:00
rtadvctl	rtadvctl: Use nitems(foo) instead of sizeof(foo)/sizeof(foo[0])	2024-04-28 21:24:46 -06:00
rtadvd	rtadvd(8): support PREF64 (RFC 8781)	2024-05-23 14:40:48 -06:00
rtprio	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
rtsold	rtsold: Further usage message updates	2025-01-24 14:06:59 +00:00
rwhod	base: do a sweep of setgroups() that mean to clear the supplementaries	2025-07-26 01:11:58 -05:00
sa	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
sendmail	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
service	service: Add an option to enable debugging	2025-08-03 01:59:26 +02:00
services_mkdb	services_mkdb(8): Fix a typo in a source code comment	2025-08-17 09:26:53 +02:00
sesutil	manpages: prefer linking to xo_options.7 over xo_parse_args.3	2025-07-16 12:02:24 -06:00
setfib	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
setfmac	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
setpmac	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
smbmsg	Remove $FreeBSD$: two-line nroff pattern	2023-08-16 11:55:10 -06:00
snapinfo	man filesystems: fix xrefs after move to section 4	2024-05-16 10:25:29 -06:00
sndctl	packages: Add a sound package	2025-10-02 02:37:35 +01:00
spi	Replace last few remaining MAN[1-8] with MAN	2025-07-26 12:00:02 +02:00
spkrtest	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
spray	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
syslogd	Remove ftpd(8)	2025-09-29 22:53:34 +01:00
sysrc	bsdconfig: Move to -bsdconfig package	2025-08-04 00:13:03 +01:00
tcpdchk	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
tcpdmatch	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
tcpdrop	usr.sbin: Automated cleanup of cdefs and other formatting	2023-11-26 22:24:01 -07:00
tcpdump	tcpdump: don't create unused version.c	2025-09-03 13:12:33 +01:00
tcpsso	tcp: remove support for TCPPCAP	2025-03-31 16:55:39 +02:00
tests	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
traceroute	SPDX: Tag BSD-4.3TAHOE	2025-05-21 12:37:10 -04:00
traceroute6	traceroute6(8): Stop probing on networks rejected.	2025-06-08 17:21:24 +02:00
trim	trim.8: update the manual with references to zpool-trim and fsck_ffs -E	2025-10-01 11:05:54 +07:00
tzsetup	tzsetup: correct timezone symlink target	2024-09-30 10:22:34 -04:00
uathload	uathload.8: Fix typo	2025-08-06 11:18:59 -04:00
uefisign	uefisign.8: fix indent	2025-03-29 17:48:06 -03:00
ugidfw	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
uhsoctl	usr.sbin/uhsoctl: correct SIOCDIFADDR calls to use ifreq	2024-07-22 14:58:19 +00:00
unbound	local-unbound-setup: If TLS is enabled, use the certificate bundle	2025-08-18 16:31:42 +02:00
usbconfig	libusb: add SUPER_PLUS in speed enum.	2025-05-15 20:30:32 +02:00
usbdump	Give usbdump a '-u' option for unbuffered output.	2024-10-21 11:21:05 +00:00
utx	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
valectl	Update Makefile.depend files	2024-10-14 10:26:17 -07:00
vidcontrol	Like for -P et al, state that -deElL are syscons only options.	2025-09-04 21:28:33 +02:00
vigr	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
vipw	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
virtual_oss	packages: Add a sound package	2025-10-02 02:37:35 +01:00
wake	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
watch	watch.8: Align option list	2025-08-22 16:13:15 -04:00
watchdogd	watchdog: Convert to using sbintime_t format	2025-08-14 15:02:46 -04:00
wlandebug	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
wlanstat	wlanstat(8): Rename from wlanstats(8) to keep consistency	2025-09-30 11:30:08 +08:00
wpa	wpa_supplicant: xref relevant wpa_passphrase(8)	2024-10-15 17:18:02 -03:00
yp_mkdb	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ypbind	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ypldap	base: do a sweep of setgroups() that mean to clear the supplementaries	2025-07-26 01:11:58 -05:00
yppoll	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
yppush	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
ypserv	etc, ypserv: Fix symlink creation for pkgbase	2025-10-02 02:37:35 +01:00
ypset	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
zdump	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
zic	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
zonectl	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
zzz	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
Makefile	virtual_oss: Do not build if WITHOUT_CUSE is set	2025-09-30 19:01:37 +02:00
Makefile.aarch64	bhyvectl: Add arm64 bits and hook it up to the build	2024-05-01 08:33:23 -04:00
Makefile.amd64	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
Makefile.i386	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
Makefile.inc	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
Makefile.powerpc	Remove residual blank line at start of Makefile	2024-07-15 16:43:39 -06:00
Makefile.riscv	usr.sbin: Gate bhyve/bhyvectl on MK_BHYVE for riscv	2025-06-13 18:56:51 +01:00