| 1 | /*
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| 2 | * Copyright (c) 2007 Michal Kebrt
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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 |
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| 30 | /** @addtogroup arm32boot
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| 31 | * @{
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| 32 | */
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| 33 | /** @file
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| 34 | * @brief Functions implemented in assembly.
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| 35 | */
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| 36 |
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| 37 |
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| 38 | #ifndef BOOT_arm32_ASM_H
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| 39 | #define BOOT_arm32_ASM_H
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| 40 |
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| 41 |
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| 42 | /** Copies cnt bytes from dst to src.
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| 43 | *
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| 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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| 48 | #define memcpy(dst, src, cnt) __builtin_memcpy((dst), (src), (cnt))
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| 49 |
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| 50 |
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| 51 | /** Called when the CPU is switched on.
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| 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 |
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| 58 |
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| 59 | /** Jumps to the kernel entry point.
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| 60 | *
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| 61 | * @param entry Kernel entry point address.
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| 62 | * @param bootinfo Structure holding information about loaded tasks.
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| 63 | * @param bootinfo_size Size of the bootinfo structure.
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| 64 | */
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| 65 | extern void jump_to_kernel(void *entry, void *bootinfo,
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| 66 | unsigned int bootinfo_size) __attribute__((noreturn));
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| 67 |
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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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