freebsd-nq/lib/libdtrace/common/dt_provider.h

119 lines
4.4 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _DT_PROVIDER_H
#define _DT_PROVIDER_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <dt_impl.h>
#include <dt_ident.h>
#include <dt_list.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct dt_provider {
dt_list_t pv_list; /* list forward/back pointers */
struct dt_provider *pv_next; /* pointer to next provider in hash */
dtrace_providerdesc_t pv_desc; /* provider name and attributes */
dt_idhash_t *pv_probes; /* probe defs (if user-declared) */
dt_node_t *pv_nodes; /* parse node allocation list */
ulong_t *pv_xrefs; /* translator reference bitmap */
ulong_t pv_xrmax; /* number of valid bits in pv_xrefs */
ulong_t pv_gen; /* generation # that created me */
dtrace_hdl_t *pv_hdl; /* pointer to containing dtrace_hdl */
uint_t pv_flags; /* flags (see below) */
} dt_provider_t;
#define DT_PROVIDER_INTF 0x1 /* provider interface declaration */
#define DT_PROVIDER_IMPL 0x2 /* provider implementation is loaded */
typedef struct dt_probe_iter {
dtrace_probedesc_t pit_desc; /* description storage */
dtrace_hdl_t *pit_hdl; /* libdtrace handle */
dt_provider_t *pit_pvp; /* current provider */
const char *pit_pat; /* caller's name pattern (or NULL) */
dtrace_probe_f *pit_func; /* caller's function */
void *pit_arg; /* caller's argument */
uint_t pit_matches; /* number of matches */
} dt_probe_iter_t;
typedef struct dt_probe_instance {
char pi_fname[DTRACE_FUNCNAMELEN]; /* function name */
char pi_rname[DTRACE_FUNCNAMELEN + 20]; /* mangled relocation name */
uint32_t *pi_offs; /* offsets into the function */
uint32_t *pi_enoffs; /* is-enabled offsets */
uint_t pi_noffs; /* number of offsets */
uint_t pi_maxoffs; /* size of pi_offs allocation */
uint_t pi_nenoffs; /* number of is-enabled offsets */
uint_t pi_maxenoffs; /* size of pi_enoffs allocation */
struct dt_probe_instance *pi_next; /* next instance in the list */
} dt_probe_instance_t;
typedef struct dt_probe {
dt_provider_t *pr_pvp; /* pointer to containing provider */
dt_ident_t *pr_ident; /* pointer to probe identifier */
const char *pr_name; /* pointer to name component */
dt_node_t *pr_nargs; /* native argument list */
dt_node_t **pr_nargv; /* native argument vector */
uint_t pr_nargc; /* native argument count */
dt_node_t *pr_xargs; /* translated argument list */
dt_node_t **pr_xargv; /* translated argument vector */
uint_t pr_xargc; /* translated argument count */
uint8_t *pr_mapping; /* translated argument mapping */
dt_probe_instance_t *pr_inst; /* list of functions and offsets */
dtrace_typeinfo_t *pr_argv; /* output argument types */
int pr_argc; /* output argument count */
} dt_probe_t;
extern dt_provider_t *dt_provider_lookup(dtrace_hdl_t *, const char *);
extern dt_provider_t *dt_provider_create(dtrace_hdl_t *, const char *);
extern void dt_provider_destroy(dtrace_hdl_t *, dt_provider_t *);
extern int dt_provider_xref(dtrace_hdl_t *, dt_provider_t *, id_t);
extern dt_probe_t *dt_probe_create(dtrace_hdl_t *, dt_ident_t *, int,
dt_node_t *, uint_t, dt_node_t *, uint_t);
extern dt_probe_t *dt_probe_info(dtrace_hdl_t *,
const dtrace_probedesc_t *, dtrace_probeinfo_t *);
extern dt_probe_t *dt_probe_lookup(dt_provider_t *, const char *);
extern void dt_probe_declare(dt_provider_t *, dt_probe_t *);
extern void dt_probe_destroy(dt_probe_t *);
extern int dt_probe_define(dt_provider_t *, dt_probe_t *,
const char *, const char *, uint32_t, int);
extern dt_node_t *dt_probe_tag(dt_probe_t *, uint_t, dt_node_t *);
#ifdef __cplusplus
}
#endif
#endif /* _DT_PROVIDER_H */