275928fc14
OpenSolaris. This commit resets files to match the versions in the OpenSolaris tree as of 2008/04/10. The changes in this import from the previous import are the ones that will subsequently re-applied to take files off the vendor branch. This is unfortunately necessary because the Solaris developers won't allow FreeBSD support #ifdefs in their source code because that creates 'dead code' (stuff that they never compile).
117 lines
4.5 KiB
C
117 lines
4.5 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _DT_PROC_H
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#define _DT_PROC_H
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#pragma ident "%Z%%M% %I% %E% SMI"
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#include <libproc.h>
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#include <dtrace.h>
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#include <pthread.h>
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#include <dt_list.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct dt_proc {
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dt_list_t dpr_list; /* prev/next pointers for lru chain */
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struct dt_proc *dpr_hash; /* next pointer for pid hash chain */
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dtrace_hdl_t *dpr_hdl; /* back pointer to libdtrace handle */
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struct ps_prochandle *dpr_proc; /* proc handle for libproc calls */
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char dpr_errmsg[BUFSIZ]; /* error message */
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rd_agent_t *dpr_rtld; /* rtld handle for librtld_db calls */
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pthread_mutex_t dpr_lock; /* lock for manipulating dpr_hdl */
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pthread_cond_t dpr_cv; /* cond for dpr_stop/quit/done */
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pid_t dpr_pid; /* pid of process */
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uint_t dpr_refs; /* reference count */
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uint8_t dpr_cacheable; /* cache handle using lru list */
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uint8_t dpr_stop; /* stop mask: see flag bits below */
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uint8_t dpr_quit; /* quit flag: ctl thread should quit */
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uint8_t dpr_done; /* done flag: ctl thread has exited */
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uint8_t dpr_usdt; /* usdt flag: usdt initialized */
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uint8_t dpr_stale; /* proc flag: been deprecated */
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uint8_t dpr_rdonly; /* proc flag: opened read-only */
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pthread_t dpr_tid; /* control thread (or zero if none) */
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dt_list_t dpr_bps; /* list of dt_bkpt_t structures */
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} dt_proc_t;
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typedef struct dt_proc_notify {
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dt_proc_t *dprn_dpr; /* process associated with the event */
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char dprn_errmsg[BUFSIZ]; /* error message */
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struct dt_proc_notify *dprn_next; /* next pointer */
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} dt_proc_notify_t;
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#define DT_PROC_STOP_IDLE 0x01 /* idle on owner's stop request */
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#define DT_PROC_STOP_CREATE 0x02 /* wait on dpr_cv at process exec */
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#define DT_PROC_STOP_GRAB 0x04 /* wait on dpr_cv at process grab */
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#define DT_PROC_STOP_PREINIT 0x08 /* wait on dpr_cv at rtld preinit */
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#define DT_PROC_STOP_POSTINIT 0x10 /* wait on dpr_cv at rtld postinit */
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#define DT_PROC_STOP_MAIN 0x20 /* wait on dpr_cv at a.out`main() */
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typedef void dt_bkpt_f(dtrace_hdl_t *, dt_proc_t *, void *);
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typedef struct dt_bkpt {
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dt_list_t dbp_list; /* prev/next pointers for bkpt list */
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dt_bkpt_f *dbp_func; /* callback function to execute */
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void *dbp_data; /* callback function private data */
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uintptr_t dbp_addr; /* virtual address of breakpoint */
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ulong_t dbp_instr; /* saved instruction from breakpoint */
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ulong_t dbp_hits; /* count of breakpoint hits for debug */
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int dbp_active; /* flag indicating breakpoint is on */
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} dt_bkpt_t;
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typedef struct dt_proc_hash {
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pthread_mutex_t dph_lock; /* lock protecting dph_notify list */
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pthread_cond_t dph_cv; /* cond for waiting for dph_notify */
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dt_proc_notify_t *dph_notify; /* list of pending proc notifications */
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dt_list_t dph_lrulist; /* list of dt_proc_t's in lru order */
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uint_t dph_lrulim; /* limit on number of procs to hold */
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uint_t dph_lrucnt; /* count of cached process handles */
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uint_t dph_hashlen; /* size of hash chains array */
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dt_proc_t *dph_hash[1]; /* hash chains array */
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} dt_proc_hash_t;
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extern struct ps_prochandle *dt_proc_create(dtrace_hdl_t *,
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const char *, char *const *);
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extern struct ps_prochandle *dt_proc_grab(dtrace_hdl_t *, pid_t, int, int);
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extern void dt_proc_release(dtrace_hdl_t *, struct ps_prochandle *);
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extern void dt_proc_continue(dtrace_hdl_t *, struct ps_prochandle *);
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extern void dt_proc_lock(dtrace_hdl_t *, struct ps_prochandle *);
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extern void dt_proc_unlock(dtrace_hdl_t *, struct ps_prochandle *);
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extern dt_proc_t *dt_proc_lookup(dtrace_hdl_t *, struct ps_prochandle *, int);
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extern void dt_proc_hash_create(dtrace_hdl_t *);
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extern void dt_proc_hash_destroy(dtrace_hdl_t *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _DT_PROC_H */
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