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	1	/*
	2	* CDDL HEADER START
	3	*
	4	* The contents of this file are subject to the terms of the
	5	* Common Development and Distribution License, Version 1.0 only
	6	* (the "License"). You may not use this file except in compliance
	7	* with the License.
	8	*
	9	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	10	* or http://www.opensolaris.org/os/licensing.
	11	* See the License for the specific language governing permissions
	12	* and limitations under the License.
	13	*
	14	* When distributing Covered Code, include this CDDL HEADER in each
	15	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	16	* If applicable, add the following below this CDDL HEADER, with the
	17	* fields enclosed by brackets "[]" replaced with your own identifying
	18	* information: Portions Copyright [yyyy] [name of copyright owner]
	19	*
	20	* CDDL HEADER END
	21	*/
	22	/*
	23	* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
	24	* Use is subject to license terms.
	25	*/
	26
	27	#ifndef _SDT_IMPL_H
	28	#define _SDT_IMPL_H
	29
	30	#ifdef __cplusplus
	31	extern "C" {
	32	#endif
	33
	34	extern const char *sdt_prefix;
	35
	36	typedef struct sdt_probedesc {
	37	char sdpd_name; / name of this probe */
	38	int sdpd_namelen;
	39	char sdpd_func; / APPLE NOTE: function name */
	40	const char sdpd_prov; / APPLE NOTE: provider name */
	41	unsigned long sdpd_offset; /* offset of call in text */
	42	struct sdt_probedesc sdpd_next; / next static probe */
	43	} sdt_probedesc_t;
	44
	45	#ifdef __cplusplus
	46	}
	47	#endif
	48
	49	#ifdef __cplusplus
	50	extern "C" {
	51	#endif
	52
	53	#include <sys/dtrace.h>
	54
	55	struct module {
	56	int sdt_nprobes;
	57	sdt_probedesc_t *sdt_probes;
	58	};
	59
	60	extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t);
	61	extern uint64_t sdt_getarg(void , dtrace_id_t, void , int, int);
	62
	63	void sdt_provide_module(void , struct modctl );
	64	void sdt_early_init(void);
	65	void sdt_init(void);
	66
	67	extern int sdt_probetab_size;
	68	extern int sdt_probetab_mask;
	69	#define SDT_ADDR2NDX(addr) ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
	70
	71
	72	#if defined(__x86_64__)
	73	typedef uint8_t sdt_instr_t;
	74	#elif defined(__arm__)
	75	typedef uint16_t sdt_instr_t;
	76	#elif defined(__arm64__)
	77	typedef uint32_t sdt_instr_t;
	78	#else
	79	#error Unknown implementation
	80	#endif
	81
	82	typedef struct sdt_provider {
	83	const char sdtp_name; / name of provider */
	84	const char sdtp_prefix; / prefix for probe names */
	85	dtrace_pattr_t sdtp_attr; / stability attributes */
	86	dtrace_provider_id_t sdtp_id; /* provider ID */
	87	} sdt_provider_t;
	88
	89	extern sdt_provider_t sdt_providers[]; /* array of providers */
	90
	91	typedef struct sdt_probe {
	92	sdt_provider_t sdp_provider; / provider */
	93	char sdp_name; / name of probe */
	94	int sdp_namelen; /* length of allocated name */
	95	dtrace_id_t sdp_id; /* probe ID */
	96	struct modctl sdp_ctl; / modctl for module */
	97	int sdp_loadcnt; /* load count for module */
	98	int sdp_primary; /* non-zero if primary mod */
	99	sdt_instr_t sdp_patchpoint; / patch point */
	100	sdt_instr_t sdp_patchval; /* instruction to patch */
	101	sdt_instr_t sdp_savedval; /* saved instruction value */
	102	struct sdt_probe sdp_next; / next probe */
	103	struct sdt_probe sdp_hashnext; / next on hash */
	104	} sdt_probe_t;
	105
	106	typedef struct sdt_argdesc {
	107	const char sda_provider; / provider for arg */
	108	const char sda_name; / name of probe */
	109	const int sda_ndx; /* argument index */
	110	const int sda_mapping; /* mapping of argument */
	111	const char sda_native; / native type of argument */
	112	const char sda_xlate; / translated type of arg */
	113	} sdt_argdesc_t;
	114
	115	extern void sdt_getargdesc(void , dtrace_id_t, void , dtrace_argdesc_t *);
	116
	117	#ifdef __cplusplus
	118	}
	119	#endif
	120
	121	#endif /* _SDT_IMPL_H */