annotate dyncallback/dyncall_args_x64.h @ 542:a73a5cd50c19

- fix passing aggregate-by-val on x64/sysv: subaggr classification for aggr *arrays* was wrong (was problematic when there ware exactly 2 8bytes to be classified, potentially be passed via registers)
author Tassilo Philipp
date Mon, 02 May 2022 15:32:41 +0200
parents 71c884e610f0
children
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1 /*
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2
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3 Package: dyncall
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4 Library: dyncallback
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5 File: dyncallback/dyncall_args_x64.h
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6 Description: Callback's Arguments VM - Header for x64
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7 License:
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8
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9 Copyright (c) 2007-2022 Daniel Adler <dadler@uni-goettingen.de>,
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10 Tassilo Philipp <tphilipp@potion-studios.com>
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11
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12 Permission to use, copy, modify, and distribute this software for any
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13 purpose with or without fee is hereby granted, provided that the above
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14 copyright notice and this permission notice appear in all copies.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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23
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24 */
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25
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26
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27 #ifndef DYNCALLBACK_ARGS_X64_H
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28 #define DYNCALLBACK_ARGS_X64_H
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29
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30 #include "dyncall_args.h"
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31 #include "dyncall_callvm_x64.h" /* reuse DCRegCount_x64 and DCRegData_x64_s */
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32 #include "dyncall_aggregate.h"
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33
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35
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36 struct DCArgs
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37 {
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38 /* state */
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39 int64* stack_ptr; /* offset 0 */
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40 DCRegCount_x64 reg_count; /* offset 8, size:win 4, size:*nix 8 */
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41 #if defined(DC_WINDOWS)
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42 int pad_w; /* alignment helper for win/x64 */
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43 #endif
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44 int aggr_return_register; /* offset 16 */
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45 int pad; /* offset 20 */
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46 DCaggr** aggrs; /* offset 24 */
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48 /* reg data */
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49 DCRegData_x64_s reg_data; /* offset 32 */
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50 };
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51
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52 #endif /* DYNCALLBACK_ARGS_X64_H */
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53