1 | /* |
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2 | * Copyright (c) 2005 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | /** @addtogroup sparc64 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |
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35 | #ifndef KERN_sparc64_STACK_H_ |
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36 | #define KERN_sparc64_STACK_H_ |
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37 | |
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38 | #define STACK_ITEM_SIZE 8 |
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39 | |
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40 | /** According to SPARC Compliance Definition, every stack frame is 16-byte aligned. */ |
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41 | #define STACK_ALIGNMENT 16 |
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42 | |
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43 | /** |
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44 | * 16-extended-word save area for %i[0-7] and %l[0-7] registers. |
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45 | */ |
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46 | #define STACK_WINDOW_SAVE_AREA_SIZE (16 * STACK_ITEM_SIZE) |
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47 | |
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48 | /** |
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49 | * Six extended words for first six arguments. |
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50 | */ |
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51 | #define STACK_ARG_SAVE_AREA_SIZE (6 * STACK_ITEM_SIZE) |
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52 | |
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53 | /** |
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54 | * By convention, the actual top of the stack is %sp + STACK_BIAS. |
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55 | */ |
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56 | #define STACK_BIAS 2047 |
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57 | |
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58 | /* |
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59 | * Offsets of arguments on stack. |
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60 | */ |
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61 | #define STACK_ARG0 0 |
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62 | #define STACK_ARG1 8 |
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63 | #define STACK_ARG2 16 |
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64 | #define STACK_ARG3 24 |
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65 | #define STACK_ARG4 32 |
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66 | #define STACK_ARG5 40 |
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67 | #define STACK_ARG6 48 |
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68 | |
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69 | #endif |
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70 | |
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71 | /** @} |
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72 | */ |
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