84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
133 lines
4.8 KiB
C
133 lines
4.8 KiB
C
/* $NetBSD: sdt.h,v 1.4 2013/10/07 07:11:40 dholland Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by CoyotePoint Systems, Inc. It was developed under contract to
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* CoyotePoint by Darran Hunt.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SDT_H_
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#define _SDT_H_
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/* should be stdint.h, but this works transparently for both user and kernel */
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#include <sys/stdint.h>
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#if defined(_KERNEL_OPT)
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#include "opt_dtrace.h"
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#endif
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#define SDT_MAX_PROVIDER 1024 /* max number of SDT providers */
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#define SDT_MAX_ARGS 5 /* max number of probe arguments */
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#define SDT_MAX_NAME_SIZE 64 /* max size of provider name */
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typedef struct {
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int created; /* boolean: probe created? */
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int enabled; /* boolean: probe enabled? */
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int id; /* dtrace provided probe id */
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const char *provider; /* provider name */
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const char *module; /* module name */
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const char *function; /* function name */
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const char *name; /* probe name */
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const char *argv[SDT_MAX_ARGS]; /* probe argument types */
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const char *argx[SDT_MAX_ARGS]; /* probe argument xlate types */
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} sdt_probe_t;
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/*
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* This type definition must match that of dtrace_probe. It is defined this
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* way to avoid having to rely on CDDL code.
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*/
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typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1,
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uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
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/*
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* The hook for the probe function. See kern_sdt.c which defaults this to
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* it's own stub. The 'sdt' provider will set it to dtrace_probe when it
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* loads.
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*/
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extern sdt_probe_func_t sdt_probe_func;
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#define SDT_NAME(prov, mod, func, name) \
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prov##_##mod##_##func##_##name
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#ifdef KDTRACE_HOOKS
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/*
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* SDT_PROBE_DEFINE(prov, mod, func, name, sname,
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* arg0, argx0, arg1, argx1,
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* arg2, argx2, arg3, argx3, arg4, argx4)
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*
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* prov - provider name
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* mod - module name
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* func - function name
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* name - probe name
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* sname - probe name as exposed to userland
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* arg0 - arg4, argument types as strings, or NULL.
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* argx0 - argx4, translation types for arg0 - arg4
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*
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* e.g. SDT_PROBE_DEFINE(l7, l7lb, l7lb_create_node,
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* "void *", NULL,
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* NULL, NULL, NULL, NULL,
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* NULL, NULL, NULL NULL, )
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*
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* This is used in the target module to define probes to be used.
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* The translation type should be set to NULL if not used.
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*/
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#define SDT_PROBE_DEFINE(prov, mod, func, name, sname, \
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arg0, argx0, arg1, argx1, arg2, argx2, \
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arg3, argx3, arg4, argx4) \
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sdt_probe_t SDT_NAME(prov, mod, func, name) = { \
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0, 0, 0, #prov, #mod, #func, #sname, \
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{ arg0, arg1, arg2, arg3, arg4 }, \
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{ NULL, NULL, NULL, NULL, NULL } \
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}
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/* Use this in this module to declare probes defined in the kernel. */
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#define SDT_PROBE_DECLARE(prov, mod, func, name) \
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extern sdt_probe_t SDT_NAME(prov, mod, func, name);
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/* Use this in the target modules to provide instrumentation points */
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#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
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if (__predict_false(SDT_NAME(prov, mod, func, name).enabled)) { \
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(*sdt_probe_func)(SDT_NAME(prov, mod, func, name).id, \
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(uintptr_t)(arg0), (uintptr_t)(arg1), (uintptr_t)(arg2), \
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(uintptr_t)(arg3), (uintptr_t)(arg4)); \
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}
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#else
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#define SDT_PROBE_DEFINE(prov, mod, func, name, sname, \
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arg0, argx0, arg1, argx1, arg2, argx2, \
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arg3, argx3, arg4, argx4)
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#define SDT_PROBE_DECLARE(prov, mod, func, name)
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#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
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#endif
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void sdt_init(void *);
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void sdt_exit(void);
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#endif
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