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Source at commit HEAD created 5 years 6 days ago. By ifabio, Few update to kernelPatcher (Credits to CrazyBirdy) | |
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1 | /*␊ |
2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * Portions Copyright (c) 2003 Apple Computer, Inc. All Rights␊ |
7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
8 | * Original Code as defined in and that are subject to the Apple Public␊ |
9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
10 | * except in compliance with the License. Please obtain a copy of the␊ |
11 | * License at http://www.apple.com/publicsource and read it before using␊ |
12 | * this file.␊ |
13 | * ␊ |
14 | * The Original Code and all software distributed under the License are␊ |
15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
19 | * License for the specific language governing rights and limitations␊ |
20 | * under the License.␊ |
21 | * ␊ |
22 | * @APPLE_LICENSE_HEADER_END@␊ |
23 | */␊ |
24 | ␊ |
25 | #include "sl.h"␊ |
26 | #include "saio_internal.h"␊ |
27 | #include "bootstruct.h"␊ |
28 | #include "device_tree.h"␊ |
29 | ␊ |
30 | static long gImageLastKernelAddr;␊ |
31 | ␊ |
32 | #define kPageSize 4096␊ |
33 | #define RoundPage(x) ((((unsigned)(x)) + kPageSize - 1) & ~(kPageSize - 1))␊ |
34 | ␊ |
35 | ␊ |
36 | //==============================================================================␊ |
37 | ␊ |
38 | long AllocateMemoryRange(char * rangeName, long start, long length, long type)␊ |
39 | {␊ |
40 | ␉char *nameBuf;␊ |
41 | ␉uint32_t *buffer;␊ |
42 | ␊ |
43 | ␉nameBuf = malloc(strlen(rangeName) + 1);␊ |
44 | ␊ |
45 | ␉if (nameBuf == 0) {␊ |
46 | ␉␉return -1;␊ |
47 | ␉}␊ |
48 | ␊ |
49 | ␉buffer = malloc(2 * sizeof(uint32_t));␊ |
50 | ␊ |
51 | ␉if (buffer == 0)␊ |
52 | ␉{␊ |
53 | ␉␉free(nameBuf);␊ |
54 | ␉␉return -1;␊ |
55 | ␉}␊ |
56 | ␊ |
57 | ␉strcpy(nameBuf, rangeName);␊ |
58 | ␉buffer[0] = start;␊ |
59 | ␉buffer[1] = length;␊ |
60 | ␊ |
61 | ␉DT__AddProperty(gMemoryMapNode, nameBuf, 2 * sizeof(uint32_t), (char *)buffer);␊ |
62 | ␊ |
63 | ␉return 0;␊ |
64 | }␊ |
65 | ␊ |
66 | ␊ |
67 | //==============================================================================␊ |
68 | ␊ |
69 | long AllocateKernelMemory(long inSize)␊ |
70 | {␊ |
71 | ␉long addr;␊ |
72 | ␊ |
73 | ␉if (gImageLastKernelAddr == 0)␊ |
74 | ␉{␊ |
75 | ␉␉gImageLastKernelAddr = RoundPage(bootArgs->kaddr + bootArgs->ksize);␊ |
76 | ␉}␊ |
77 | ␉addr = gImageLastKernelAddr;␊ |
78 | ␉gImageLastKernelAddr += RoundPage(inSize);␊ |
79 | ␊ |
80 | ␉if ( gImageLastKernelAddr >= (KERNEL_ADDR + KERNEL_LEN) )␊ |
81 | ␉{␊ |
82 | ␉␉stop ("AllocateKernelMemory error");␊ |
83 | ␉}␊ |
84 | ␊ |
85 | ␉bootArgs->ksize = gImageLastKernelAddr - bootArgs->kaddr;␊ |
86 | ␊ |
87 | ␉return addr;␊ |
88 | }␊ |
89 |