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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 _KMDB_MODULE_H
#define _KMDB_MODULE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/modctl.h>
#include <sys/kobj.h>
#include <mdb/mdb_gelf.h>
#include <mdb/mdb_module.h>
#include <kmdb/kmdb_wr_impl.h>
#ifdef __cplusplus
extern "C" {
#endif
#define KMDB_MC_STATE_LOADING 1
#define KMDB_MC_STATE_LOADED 2
#define KMDB_MC_STATE_UNLOADING 3
#define KMDB_MC_FL_NOUNLOAD 0x1
/*
* The mdb_module_t describes the runtime attributes of dmods - things that
* matter after the dmod has been loaded. kmdb needs to track information about
* modules before they've been loaded, and while they're in the process of
* being unloaded. As such, a kmdb_modctl_t is created for each module when the
* load is requested, and isn't destroyed until the module has completed
* unloading.
*
* This description reflects the sequence of events that occur during the
* successful loading and unloading of a dmod.
*
* 1. Debugger requests a dmod load.
*
* A kmdb_modctl_t is allocated. kmc_state is set to KMDB_MC_STATE_LOADING.
*
* 2. The driver reports the successful loading of the dmod.
*
* kmc_state is set to KMDB_MC_STATE_LOADED, and an mdb_module_t is created
* by mdb_module_create.
*
* 3. Debugger requests a dmod unload.
*
* The mdb_module_t is destroyed, and kmc_state is set to
* KMDB_MC_STATE_UNLOADING.
*
* 4. The driver reports the successful unloading of the dmod.
*
* The kmdb_modctl_t is destroyed.
*/
typedef struct kmdb_modctl {
mdb_module_t *kmc_mod; /* common dmod state */
struct modctl *kmc_modctl; /* kernel's modctl for this dmod */
int kmc_exported; /* KOBJ_EXPORTED set when last seen? */
char *kmc_modname; /* name of this dmod */
ushort_t kmc_loadmode; /* MDB_MOD_* from load request */
ushort_t kmc_flags; /* KMDB_MC_FL_* (above) */
int kmc_dlrefcnt; /* Counts dlopens/dlcloses */
int kmc_state; /* KMDB_MC_STATE_* (above) */
mdb_gelf_symtab_t *kmc_symtab; /* This dmod's symbol table */
GElf_Ehdr kmc_ehdr; /* Copy of ehdr in gelf format */
} kmdb_modctl_t;
extern int kmdb_module_loaded(kmdb_wr_load_t *);
extern void kmdb_module_load_ack(kmdb_wr_load_t *);
extern void kmdb_module_load_all_ack(kmdb_wr_t *);
extern int kmdb_module_unloaded(kmdb_wr_unload_t *);
extern void kmdb_module_unload_ack(kmdb_wr_unload_t *);
extern void kmdb_module_path_set(const char **, size_t);
extern void kmdb_module_path_ack(kmdb_wr_path_t *);
extern int kmdb_module_lookup_by_addr(uintptr_t, uint_t, char *, size_t,
GElf_Sym *, mdb_syminfo_t *);
extern int kmdb_module_lookup_by_name(const char *, const char *, GElf_Sym *,
mdb_syminfo_t *);
extern ctf_file_t *kmdb_module_addr_to_ctf(uintptr_t);
extern ctf_file_t *kmdb_module_name_to_ctf(const char *);
extern int kmdb_module_symbol_iter(const char *, uint_t, mdb_tgt_sym_f *,
void *);
extern void kmdb_module_sync(void);
#ifdef __cplusplus
}
#endif
#endif /* _KMDB_MODULE_H */
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