freebsd-nq/sys/netinet/in_kdtrace.c
Attilio Rao 54366c0bd7 - For kernel compiled only with KDTRACE_HOOKS and not any lock debugging
option, unbreak the lock tracing release semantic by embedding
  calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
  version of the releasing functions for mutex, rwlock and sxlock.
  Failing to do so skips the lockstat_probe_func invokation for
  unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
  kernel compiled without lock debugging options, potentially every
  consumer must be compiled including opt_kdtrace.h.
  Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
  dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
  is linked there and it is only used as a compile-time stub [0].

[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested.  As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while.  Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].

Sponsored by:	EMC / Isilon storage division
Discussed with:	rstone
[0] Reported by:	rstone
[1] Discussed with:	philip
2013-11-25 07:38:45 +00:00

126 lines
4.3 KiB
C

/*-
* Copyright (c) 2013 Mark Johnston <markj@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sdt.h>
SDT_PROVIDER_DEFINE(ip);
SDT_PROVIDER_DEFINE(tcp);
SDT_PROVIDER_DEFINE(udp);
SDT_PROBE_DEFINE6_XLATE(ip, , , receive, receive,
"void *", "pktinfo_t *",
"void *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct ifnet *", "ifinfo_t *",
"struct ip *", "ipv4info_t *",
"struct ip6_hdr *", "ipv6info_t *");
SDT_PROBE_DEFINE6_XLATE(ip, , , send, send,
"void *", "pktinfo_t *",
"void *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct ifnet *", "ifinfo_t *",
"struct ip *", "ipv4info_t *",
"struct ip6_hdr *", "ipv6info_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , accept_established, accept-established,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfoh_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , accept_refused, accept-refused,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfo_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_established, connect-established,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfoh_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_refused, connect-refused,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfoh_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_request, connect-request,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfo_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , receive, receive,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfoh_t *");
SDT_PROBE_DEFINE5_XLATE(tcp, , , send, send,
"void *", "pktinfo_t *",
"struct tcpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct tcpcb *", "tcpsinfo_t *" ,
"struct tcphdr *", "tcpinfo_t *");
SDT_PROBE_DEFINE6_XLATE(tcp, , , state_change, state-change,
"void *", "void *",
"struct tcpcb *", "csinfo_t *",
"void *", "void *",
"struct tcpcb *", "tcpsinfo_t *",
"void *", "void *",
"int", "tcplsinfo_t *");
SDT_PROBE_DEFINE5_XLATE(udp, , , receive, receive,
"void *", "pktinfo_t *",
"struct inpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct inpcb *", "udpsinfo_t *",
"struct udphdr *", "udpinfo_t *");
SDT_PROBE_DEFINE5_XLATE(udp, , , send, send,
"void *", "pktinfo_t *",
"struct inpcb *", "csinfo_t *",
"uint8_t *", "ipinfo_t *",
"struct inpcb *", "udpsinfo_t *",
"struct udphdr *", "udpinfo_t *");