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freebsd-dev/sys/sys/ktr.h
Attilio Rao e370959707 Fix KTR_CPUMASK in order to accept a string representing a cpuset_t. 
This introduce all the underlying support for making this possible (via
the function cpusetobj_strscan() and keeps ktr_cpumask exported.  sparc64
implements its own assembly primitives for tracing events and needs to
properly check it.  Anyway the sparc64 logic is not implemented yet due
to lack of knowledge (by me) and time (by marius), but it is just a
matter of using ktr_cpumask when possible.

Tested and fixed by:	pluknet
Reviewed by:		marius
2011-05-31 20:48:58 +00:00

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/*-
* Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
*
* 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.
* 3. Berkeley Software Design Inc's name may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``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 BERKELEY SOFTWARE DESIGN INC 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.
*
* from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
* $FreeBSD$
*/
/*
* Wraparound kernel trace buffer support.
*/
#ifndef _SYS_KTR_H_
#define _SYS_KTR_H_
/*
* Trace classes
*
* Two of the trace classes (KTR_DEV and KTR_SUBSYS) are special in that
* they are really placeholders so that indvidual drivers and subsystems
* can map their internal tracing to the general class when they wish to
* have tracing enabled and map it to 0 when they don't.
*/
#define KTR_GEN 0x00000001 /* General (TR) */
#define KTR_NET 0x00000002 /* Network */
#define KTR_DEV 0x00000004 /* Device driver */
#define KTR_LOCK 0x00000008 /* MP locking */
#define KTR_SMP 0x00000010 /* MP general */
#define KTR_SUBSYS 0x00000020 /* Subsystem. */
#define KTR_PMAP 0x00000040 /* Pmap tracing */
#define KTR_MALLOC 0x00000080 /* Malloc tracing */
#define KTR_TRAP 0x00000100 /* Trap processing */
#define KTR_INTR 0x00000200 /* Interrupt tracing */
#define KTR_SIG 0x00000400 /* Signal processing */
#define KTR_SPARE2 0x00000800 /* XXX Used by cxgb */
#define KTR_PROC 0x00001000 /* Process scheduling */
#define KTR_SYSC 0x00002000 /* System call */
#define KTR_INIT 0x00004000 /* System initialization */
#define KTR_SPARE3 0x00008000 /* XXX Used by cxgb */
#define KTR_SPARE4 0x00010000 /* XXX Used by cxgb */
#define KTR_EVH 0x00020000 /* Eventhandler */
#define KTR_VFS 0x00040000 /* VFS events */
#define KTR_VOP 0x00080000 /* Auto-generated vop events */
#define KTR_VM 0x00100000 /* The virtual memory system */
#define KTR_INET 0x00200000 /* IPv4 stack */
#define KTR_RUNQ 0x00400000 /* Run queue */
#define KTR_CONTENTION 0x00800000 /* Lock contention */
#define KTR_UMA 0x01000000 /* UMA slab allocator */
#define KTR_CALLOUT 0x02000000 /* Callouts and timeouts */
#define KTR_GEOM 0x04000000 /* GEOM I/O events */
#define KTR_BUSDMA 0x08000000 /* busdma(9) events */
#define KTR_INET6 0x10000000 /* IPv6 stack */
#define KTR_SCHED 0x20000000 /* Machine parsed sched info. */
#define KTR_BUF 0x40000000 /* Buffer cache */
#define KTR_ALL 0x7fffffff
/* Trace classes to compile in */
#ifdef KTR
#ifndef KTR_COMPILE
#define KTR_COMPILE (KTR_ALL)
#endif
#else /* !KTR */
#undef KTR_COMPILE
#define KTR_COMPILE 0
#endif /* KTR */
/*
* Version number for ktr_entry struct. Increment this when you break binary
* compatibility.
*/
#define KTR_VERSION 2
#define KTR_PARMS 6
#ifndef LOCORE
#include <sys/param.h>
#include <sys/_cpuset.h>
struct ktr_entry {
u_int64_t ktr_timestamp;
int ktr_cpu;
int ktr_line;
const char *ktr_file;
const char *ktr_desc;
struct thread *ktr_thread;
u_long ktr_parms[KTR_PARMS];
};
extern cpuset_t ktr_cpumask;
extern int ktr_mask;
extern int ktr_entries;
extern int ktr_verbose;
extern volatile int ktr_idx;
extern struct ktr_entry ktr_buf[];
#ifdef KTR
void ktr_tracepoint(u_int mask, const char *file, int line,
const char *format, u_long arg1, u_long arg2, u_long arg3,
u_long arg4, u_long arg5, u_long arg6);
#define CTR6(m, format, p1, p2, p3, p4, p5, p6) do { \
if (KTR_COMPILE & (m)) \
ktr_tracepoint((m), __FILE__, __LINE__, format, \
(u_long)(p1), (u_long)(p2), (u_long)(p3), \
(u_long)(p4), (u_long)(p5), (u_long)(p6)); \
} while(0)
#define CTR0(m, format) CTR6(m, format, 0, 0, 0, 0, 0, 0)
#define CTR1(m, format, p1) CTR6(m, format, p1, 0, 0, 0, 0, 0)
#define CTR2(m, format, p1, p2) CTR6(m, format, p1, p2, 0, 0, 0, 0)
#define CTR3(m, format, p1, p2, p3) CTR6(m, format, p1, p2, p3, 0, 0, 0)
#define CTR4(m, format, p1, p2, p3, p4) CTR6(m, format, p1, p2, p3, p4, 0, 0)
#define CTR5(m, format, p1, p2, p3, p4, p5) CTR6(m, format, p1, p2, p3, p4, p5, 0)
#else /* KTR */
#define CTR0(m, d) (void)0
#define CTR1(m, d, p1) (void)0
#define CTR2(m, d, p1, p2) (void)0
#define CTR3(m, d, p1, p2, p3) (void)0
#define CTR4(m, d, p1, p2, p3, p4) (void)0
#define CTR5(m, d, p1, p2, p3, p4, p5) (void)0
#define CTR6(m, d, p1, p2, p3, p4, p5, p6) (void)0
#endif /* KTR */
#define TR0(d) CTR0(KTR_GEN, d)
#define TR1(d, p1) CTR1(KTR_GEN, d, p1)
#define TR2(d, p1, p2) CTR2(KTR_GEN, d, p1, p2)
#define TR3(d, p1, p2, p3) CTR3(KTR_GEN, d, p1, p2, p3)
#define TR4(d, p1, p2, p3, p4) CTR4(KTR_GEN, d, p1, p2, p3, p4)
#define TR5(d, p1, p2, p3, p4, p5) CTR5(KTR_GEN, d, p1, p2, p3, p4, p5)
#define TR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_GEN, d, p1, p2, p3, p4, p5, p6)
/*
* The event macros implement KTR graphic plotting facilities provided
* by src/tools/sched/schedgraph.py. Three generic types of events are
* supported: states, counters, and points.
*
* m is the ktr class for ktr_mask.
* ident is the string identifier that owns the event (ie: "thread 10001")
* etype is the type of event to plot (state, counter, point)
* edat is the event specific data (state name, counter value, point name)
* up to four attributes may be supplied as a name, value pair of arguments.
*
* etype and attribute names must be string constants. This minimizes the
* number of ktr slots required by construction the final format strings
* at compile time. Both must also include a colon and format specifier
* (ie. "prio:%d", prio). It is recommended that string arguments be
* contained within escaped quotes if they may contain ',' or ':' characters.
*
* The special attribute (KTR_ATTR_LINKED, ident) creates a reference to another
* id on the graph for easy traversal of related graph elements.
*/
#define KTR_ATTR_LINKED "linkedto:\"%s\""
#define KTR_EFMT(egroup, ident, etype) \
"KTRGRAPH group:\"" egroup "\", id:\"%s\", " etype ", attributes: "
#define KTR_EVENT0(m, egroup, ident, etype, edat) \
CTR2(m, KTR_EFMT(egroup, ident, etype) "none", ident, edat)
#define KTR_EVENT1(m, egroup, ident, etype, edat, a0, v0) \
CTR3(m, KTR_EFMT(egroup, ident, etype) a0, ident, edat, (v0))
#define KTR_EVENT2(m, egroup, ident, etype, edat, a0, v0, a1, v1) \
CTR4(m, KTR_EFMT(egroup, ident, etype) a0 ", " a1, \
ident, edat, (v0), (v1))
#define KTR_EVENT3(m, egroup, ident, etype, edat, a0, v0, a1, v1, a2, v2)\
CTR5(m,KTR_EFMT(egroup, ident, etype) a0 ", " a1 ", " a2, \
ident, edat, (v0), (v1), (v2))
#define KTR_EVENT4(m, egroup, ident, etype, edat, \
a0, v0, a1, v1, a2, v2, a3, v3) \
CTR6(m,KTR_EFMT(egroup, ident, etype) a0 ", " a1 ", " a2 ", " a3,\
ident, edat, (v0), (v1), (v2), (v3))
/*
* State functions graph state changes on an ident.
*/
#define KTR_STATE0(m, egroup, ident, state) \
KTR_EVENT0(m, egroup, ident, "state:\"%s\"", state)
#define KTR_STATE1(m, egroup, ident, state, a0, v0) \
KTR_EVENT1(m, egroup, ident, "state:\"%s\"", state, a0, (v0))
#define KTR_STATE2(m, egroup, ident, state, a0, v0, a1, v1) \
KTR_EVENT2(m, egroup, ident, "state:\"%s\"", state, a0, (v0), a1, (v1))
#define KTR_STATE3(m, egroup, ident, state, a0, v0, a1, v1, a2, v2) \
KTR_EVENT3(m, egroup, ident, "state:\"%s\"", \
state, a0, (v0), a1, (v1), a2, (v2))
#define KTR_STATE4(m, egroup, ident, state, a0, v0, a1, v1, a2, v2, a3, v3)\
KTR_EVENT4(m, egroup, ident, "state:\"%s\"", \
state, a0, (v0), a1, (v1), a2, (v2), a3, (v3))
/*
* Counter functions graph counter values. The counter id
* must not be intermixed with a state id.
*/
#define KTR_COUNTER0(m, egroup, ident, counter) \
KTR_EVENT0(m, egroup, ident, "counter:%d", counter)
#define KTR_COUNTER1(m, egroup, ident, edat, a0, v0) \
KTR_EVENT1(m, egroup, ident, "counter:%d", counter, a0, (v0))
#define KTR_COUNTER2(m, egroup, ident, counter, a0, v0, a1, v1) \
KTR_EVENT2(m, egroup, ident, "counter:%d", counter, a0, (v0), a1, (v1))
#define KTR_COUNTER3(m, egroup, ident, counter, a0, v0, a1, v1, a2, v2) \
KTR_EVENT3(m, egroup, ident, "counter:%d", \
counter, a0, (v0), a1, (v1), a2, (v2))
#define KTR_COUNTER4(m, egroup, ident, counter, a0, v0, a1, v1, a2, v2, a3, v3)\
KTR_EVENT4(m, egroup, ident, "counter:%d", \
counter, a0, (v0), a1, (v1), a2, (v2), a3, (v3))
/*
* Point functions plot points of interest on counter or state graphs.
*/
#define KTR_POINT0(m, egroup, ident, point) \
KTR_EVENT0(m, egroup, ident, "point:\"%s\"", point)
#define KTR_POINT1(m, egroup, ident, point, a0, v0) \
KTR_EVENT1(m, egroup, ident, "point:\"%s\"", point, a0, (v0))
#define KTR_POINT2(m, egroup, ident, point, a0, v0, a1, v1) \
KTR_EVENT2(m, egroup, ident, "point:\"%s\"", point, a0, (v0), a1, (v1))
#define KTR_POINT3(m, egroup, ident, point, a0, v0, a1, v1, a2, v2) \
KTR_EVENT3(m, egroup, ident, "point:\"%s\"", point, \
a0, (v0), a1, (v1), a2, (v2))
#define KTR_POINT4(m, egroup, ident, point, a0, v0, a1, v1, a2, v2, a3, v3)\
KTR_EVENT4(m, egroup, ident, "point:\"%s\"", \
point, a0, (v0), a1, (v1), a2, (v2), a3, (v3))
/*
* Trace initialization events, similar to CTR with KTR_INIT, but
* completely ifdef'ed out if KTR_INIT isn't in KTR_COMPILE (to
* save string space, the compiler doesn't optimize out strings
* for the conditional ones above).
*/
#if (KTR_COMPILE & KTR_INIT) != 0
#define ITR0(d) CTR0(KTR_INIT, d)
#define ITR1(d, p1) CTR1(KTR_INIT, d, p1)
#define ITR2(d, p1, p2) CTR2(KTR_INIT, d, p1, p2)
#define ITR3(d, p1, p2, p3) CTR3(KTR_INIT, d, p1, p2, p3)
#define ITR4(d, p1, p2, p3, p4) CTR4(KTR_INIT, d, p1, p2, p3, p4)
#define ITR5(d, p1, p2, p3, p4, p5) CTR5(KTR_INIT, d, p1, p2, p3, p4, p5)
#define ITR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_INIT, d, p1, p2, p3, p4, p5, p6)
#else
#define ITR0(d)
#define ITR1(d, p1)
#define ITR2(d, p1, p2)
#define ITR3(d, p1, p2, p3)
#define ITR4(d, p1, p2, p3, p4)
#define ITR5(d, p1, p2, p3, p4, p5)
#define ITR6(d, p1, p2, p3, p4, p5, p6)
#endif
#endif /* !LOCORE */
#endif /* !_SYS_KTR_H_ */
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