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/* metacall_impl.c -*-C-*-
*
*************************************************************************
*
* @copyright
* Copyright (C) 2009-2013, Intel Corporation
* All rights reserved.
*
* @copyright
* 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 Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* @copyright
* 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 THE COPYRIGHT
* HOLDER 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.
**************************************************************************/
#include "metacall_impl.h"
NOINLINE
CILK_API_VOID
__cilkrts_metacall(unsigned int tool, unsigned int code, void *data)
{
#ifdef ENABLE_NOTIFY_ZC_INTRINSIC
// The metacall type, code and data are packed together into a single
// struct which will be interpreted by the tool. This function is the
// one and only use of a "cilkscreen_metacall" annotation
metacall_data_t d = { tool, code, data };
// Note that Inspector uses probe mode, and is implementing the metacall
// interface to force the runtime to run with a single worker. So
// __cilkrts_metacall must use __notify_intrinsic instead of
// __notify_zc_intrinsic
__notify_intrinsic("cilkscreen_metacall", &d);
#endif // ENABLE_NOTIFY_ZC_INTRINSIC
}
int __cilkrts_running_under_sequential_ptool(void)
{
static int running_under_sequential_ptool = -1;
volatile char c = ~0;
// If we haven't been called before, see if we're running under Cilkscreen
// or Cilkview
if (-1 == running_under_sequential_ptool)
{
// metacall #2 writes 0 in C if we are running under
// a p-tools that requires serial execution, and is a
// no-op otherwise
//
// Note that removing the volatile is required to prevent the compiler
// from assuming that the value has not changed
__cilkrts_metacall(METACALL_TOOL_SYSTEM,
HYPER_ZERO_IF_SEQUENTIAL_PTOOL, (void *)&c);
running_under_sequential_ptool = (0 == c);
}
return running_under_sequential_ptool;
}
/*
* __cilkrts_cilkscreen_establish_c_stack
*
* Notify Cilkscreen of the extent of the stack
*/
void __cilkrts_cilkscreen_establish_c_stack(char *begin, char *end)
{
char *limits[2] = {begin, end};
__cilkrts_metacall(METACALL_TOOL_SYSTEM, HYPER_ESTABLISH_C_STACK, limits);
}
#ifdef WORKSPAN // Workspan stuff - remove when we're sure what we can drop
void __cilkview_workspan_start(void) {
__cilkrts_metacall(HYPER_WORKSPAN_START, 0);
}
void __cilkview_workspan_stop(void) {
__cilkrts_metacall(HYPER_WORKSPAN_STOP, 0);
}
void __cilkview_workspan_dump(const char *str) {
__cilkrts_metacall(HYPER_WORKSPAN_DUMP, (void*)str);
}
void __cilkview_workspan_reset(void) {
__cilkrts_metacall(HYPER_WORKSPAN_RESET, 0);
}
void __cilkview_use_default_grain(void) {
__cilkrts_metacall(HYPER_USE_DEFAULT_GRAIN, 0);
}
void __cilkview_get_workspan_data(unsigned long long *values, int size)
{
void *data[2];
/* reset counters to zero in case we are not running under
a p-tool */
values[0] = 0;
data[0] = (void*) values;
data[1] = (void*) &size;
__cilkrts_metacall(HYPER_WORKSPAN_QUERY, &data);
}
void __cilkview_workspan_connected (int *flag) {
*flag = 0;
__cilkrts_metacall(HYPER_WORKSPAN_CONNECTED, (void *)flag);
}
void __cilkview_workspan_suspend() {
__cilkrts_metacall(HYPER_WORKSPAN_SUSPEND, 0);
}
void __cilkview_workspan_resume() {
__cilkrts_metacall(HYPER_WORKSPAN_RESUME, 0);
}
/* depreciated interfaces */
void __cilkometer_workspan_start(void) {
__cilkrts_metacall(HYPER_WORKSPAN_START, 0);
}
void __cilkometer_workspan_stop(void) {
__cilkrts_metacall(HYPER_WORKSPAN_STOP, 0);
}
void __cilkometer_workspan_dump(const char *str) {
__cilkrts_metacall(HYPER_WORKSPAN_DUMP, (void*)str);
}
void __cilkometer_workspan_reset(void) {
__cilkrts_metacall(HYPER_WORKSPAN_RESET, 0);
}
#endif // WORKSPAN
/* End metacall_impl.c */
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