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2145 | kebrt | 1 | /* |
2153 | kebrt | 2 | * Copyright (c) 2007 Michal Kebrt |
2145 | kebrt | 3 | * All rights reserved. |
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 | |||
29 | |||
2323 | kebrt | 30 | /** @addtogroup arm32boot |
31 | * @{ |
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32 | */ |
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33 | /** @file |
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2349 | kebrt | 34 | * @brief Functions implemented in assembly. |
2323 | kebrt | 35 | */ |
36 | |||
37 | |||
38 | #ifndef BOOT_arm32_ASM_H |
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39 | #define BOOT_arm32_ASM_H |
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40 | |||
41 | |||
2353 | kebrt | 42 | /** Copies cnt bytes from dst to src. |
2323 | kebrt | 43 | * |
44 | * @param dst Destination address. |
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45 | * @param src Source address. |
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46 | * @param cnt Count of bytes to be copied. |
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47 | */ |
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2158 | kebrt | 48 | #define memcpy(dst, src, cnt) __builtin_memcpy((dst), (src), (cnt)) |
49 | |||
2323 | kebrt | 50 | |
2409 | kebrt | 51 | /** Called when the CPU is switched on. |
52 | * |
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53 | * This function is placed to the 0x0 address where ARM CPU starts execution. |
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54 | * Jumps to the #bootstrap only. |
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55 | */ |
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56 | extern void start(void); |
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57 | |||
58 | |||
2349 | kebrt | 59 | /** Jumps to the kernel entry point. |
2323 | kebrt | 60 | * |
61 | * @param entry Kernel entry point address. |
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62 | * @param bootinfo Structure holding information about loaded tasks. |
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2353 | kebrt | 63 | * @param bootinfo_size Size of the bootinfo structure. |
2323 | kebrt | 64 | */ |
2468 | jermar | 65 | extern void jump_to_kernel(void *entry, void *bootinfo, |
66 | unsigned int bootinfo_size) __attribute__((noreturn)); |
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2145 | kebrt | 67 | |
2323 | kebrt | 68 | |
2145 | kebrt | 69 | #endif |
2323 | kebrt | 70 | |
71 | /** @} |
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72 | */ |