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168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
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/* metacall_impl.c -*-C-*-
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*
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*************************************************************************
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*
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* @copyright
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* Copyright (C) 2009-2013, Intel Corporation
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* All rights reserved.
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*
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* @copyright
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* @copyright
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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**************************************************************************/
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#include "metacall_impl.h"
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NOINLINE
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CILK_API_VOID
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__cilkrts_metacall(unsigned int tool, unsigned int code, void *data)
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{
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#ifdef ENABLE_NOTIFY_ZC_INTRINSIC
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// The metacall type, code and data are packed together into a single
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// struct which will be interpreted by the tool. This function is the
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// one and only use of a "cilkscreen_metacall" annotation
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metacall_data_t d = { tool, code, data };
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// Note that Inspector uses probe mode, and is implementing the metacall
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// interface to force the runtime to run with a single worker. So
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// __cilkrts_metacall must use __notify_intrinsic instead of
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// __notify_zc_intrinsic
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__notify_intrinsic("cilkscreen_metacall", &d);
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#endif // ENABLE_NOTIFY_ZC_INTRINSIC
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}
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int __cilkrts_running_under_sequential_ptool(void)
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{
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static int running_under_sequential_ptool = -1;
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volatile char c = ~0;
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// If we haven't been called before, see if we're running under Cilkscreen
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// or Cilkview
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if (-1 == running_under_sequential_ptool)
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{
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// metacall #2 writes 0 in C if we are running under
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// a p-tools that requires serial execution, and is a
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// no-op otherwise
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//
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// Note that removing the volatile is required to prevent the compiler
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// from assuming that the value has not changed
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__cilkrts_metacall(METACALL_TOOL_SYSTEM,
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HYPER_ZERO_IF_SEQUENTIAL_PTOOL, (void *)&c);
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running_under_sequential_ptool = (0 == c);
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}
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return running_under_sequential_ptool;
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}
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/*
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* __cilkrts_cilkscreen_establish_c_stack
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*
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* Notify Cilkscreen of the extent of the stack
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*/
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void __cilkrts_cilkscreen_establish_c_stack(char *begin, char *end)
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{
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char *limits[2] = {begin, end};
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__cilkrts_metacall(METACALL_TOOL_SYSTEM, HYPER_ESTABLISH_C_STACK, limits);
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}
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#ifdef WORKSPAN // Workspan stuff - remove when we're sure what we can drop
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void __cilkview_workspan_start(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_START, 0);
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}
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void __cilkview_workspan_stop(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_STOP, 0);
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}
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void __cilkview_workspan_dump(const char *str) {
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__cilkrts_metacall(HYPER_WORKSPAN_DUMP, (void*)str);
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}
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void __cilkview_workspan_reset(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_RESET, 0);
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}
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void __cilkview_use_default_grain(void) {
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__cilkrts_metacall(HYPER_USE_DEFAULT_GRAIN, 0);
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}
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void __cilkview_get_workspan_data(unsigned long long *values, int size)
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{
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void *data[2];
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/* reset counters to zero in case we are not running under
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a p-tool */
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values[0] = 0;
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data[0] = (void*) values;
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data[1] = (void*) &size;
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__cilkrts_metacall(HYPER_WORKSPAN_QUERY, &data);
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}
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void __cilkview_workspan_connected (int *flag) {
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*flag = 0;
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__cilkrts_metacall(HYPER_WORKSPAN_CONNECTED, (void *)flag);
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}
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void __cilkview_workspan_suspend() {
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__cilkrts_metacall(HYPER_WORKSPAN_SUSPEND, 0);
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}
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void __cilkview_workspan_resume() {
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__cilkrts_metacall(HYPER_WORKSPAN_RESUME, 0);
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}
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/* depreciated interfaces */
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void __cilkometer_workspan_start(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_START, 0);
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}
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void __cilkometer_workspan_stop(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_STOP, 0);
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}
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void __cilkometer_workspan_dump(const char *str) {
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__cilkrts_metacall(HYPER_WORKSPAN_DUMP, (void*)str);
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}
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void __cilkometer_workspan_reset(void) {
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__cilkrts_metacall(HYPER_WORKSPAN_RESET, 0);
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}
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#endif // WORKSPAN
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/* End metacall_impl.c */
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