1 /* cilk-abi-vla-internal.c -*-C++-*-
2 *
3 *************************************************************************
4 *
5 * @copyright
6 * Copyright (C) 2013, Intel Corporation
7 * All rights reserved.
8 *
9 * @copyright
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * * Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * * Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 * * Neither the name of Intel Corporation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * @copyright
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
31 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
32 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
33 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
35 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 **************************************************************************/
38
39 /*
40 * These functions are provided in their own compilation unit so I can debug
41 * them. cilk-abi-vla.c must always be compiled with optimization on so that
42 * inlining occurs.
43 */
44
45 #include "internal/abi.h"
46 #include "cilk-abi-vla-internal.h"
47 #include "bug.h"
48 #include "full_frame.h"
49 #include "local_state.h"
50
51 #include <stdlib.h>
52 #include <stdint.h>
53
54 #include "bug.h"
55
vla_internal_heap_alloc(__cilkrts_stack_frame * sf,size_t full_size,uint32_t align)56 void *vla_internal_heap_alloc(__cilkrts_stack_frame *sf,
57 size_t full_size,
58 uint32_t align)
59 {
60 return malloc(full_size);
61 }
62
vla_internal_heap_free(void * t,size_t size)63 void vla_internal_heap_free(void *t, size_t size)
64 {
65 free(t);
66 }
67
vla_free_from_original_stack(__cilkrts_stack_frame * sf,size_t full_size)68 void vla_free_from_original_stack(__cilkrts_stack_frame *sf,
69 size_t full_size)
70 {
71 // The __cilkrts_stack_frame must be initialized
72 CILK_ASSERT(sf->worker);
73
74 #if 1
75 // Add full_size to ff->sync_sp so that when we return, the VLA will no
76 // longer be allocated on the stack
77 __cilkrts_adjust_stack(sf->worker->l->frame_ff, full_size);
78 #else
79 // Inline __cilkrts_adjust_stack for Kevin
80 full_frame *ff = sf->worker->l->frame_ff;
81 ff->sync_sp = ff->sync_sp + full_size;
82 #endif
83 }
84