| /* ********************************************************** |
| * Copyright (c) 2002-2008 VMware, Inc. All rights reserved. |
| * **********************************************************/ |
| |
| /* |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * * Neither the name of VMware, Inc. nor the names of its contributors may be |
| * used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL VMWARE, INC. OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
| * DAMAGE. |
| */ |
| |
| /* Copyright (c) 2003-2007 Determina Corp. */ |
| /* Copyright (c) 2002-2003 Massachusetts Institute of Technology */ |
| |
| /* |
| * sideline.h - multiprocessor support |
| */ |
| |
| #ifndef _SIDELINE_H_ |
| #define _SIDELINE_H_ 1 |
| |
| /* sampled by sideline thread to find hot traces */ |
| extern volatile fragment_t * sideline_trace; |
| |
| extern int num_processors; |
| |
| /* used for synchronization with other threads */ |
| extern mutex_t sideline_lock; |
| extern thread_id_t pause_for_sideline; |
| extern event_t paused_for_sideline_event; |
| extern event_t resume_from_sideline_event; |
| extern mutex_t do_not_delete_lock; |
| /* initialization */ |
| void sideline_init(void); |
| |
| /* atexit cleanup */ |
| void sideline_exit(void); |
| |
| /* tells sideline threads when dynamo is active */ |
| void sideline_start(void); |
| void sideline_stop(void); |
| |
| /* adds profiling for identification of hot traces */ |
| void add_sideline_prefix(dcontext_t *dcontext, instrlist_t *trace); |
| void finalize_sideline_prefix(dcontext_t *dcontext, fragment_t *trace_f); |
| |
| /* called when target thread is at safe point so a replaced trace can |
| * be completely removed |
| */ |
| void sideline_cleanup_replacement(dcontext_t *dcontext); |
| |
| /* called by app thread to remove f from sideline data structures */ |
| void sideline_fragment_delete(fragment_t *f); |
| |
| /* calls optimize_function on the trace of interest, safely handles replacement */ |
| fragment_t * |
| sideline_optimize(fragment_t *f, |
| void (*remove_sideline_profiling)(dcontext_t *,instrlist_t *), |
| void (*optimize_function)(dcontext_t *,fragment_t *,instrlist_t *)); |
| |
| #endif /* _SIDELINE_H_ */ |
