pexpert/gen/pe_gen.c

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_FREE_COPYRIGHT@
  30  */
  31
  32 #include <pexpert/pexpert.h>
  33 #include <pexpert/protos.h>
  34 #include <pexpert/device_tree.h>
  35 #include <kern/debug.h>
  36
  37 #if CONFIG_EMBEDDED
  38 #include <libkern/section_keywords.h>
  39 #endif
  40
  41 static int DEBUGFlag;
  42
  43 #if CONFIG_EMBEDDED
  44 SECURITY_READ_ONLY_LATE(static uint32_t) gPEKernelConfigurationBitmask;
  45 #else
  46 static uint32_t gPEKernelConfigurationBitmask;
  47 #endif
  48
  49 int32_t gPESerialBaud = -1;
  50
  51 void pe_init_debug(void)
  52 {
  53         boolean_t boot_arg_value;
  54
  55         if (!PE_parse_boot_argn("debug", &DEBUGFlag, sizeof (DEBUGFlag)))
  56                 DEBUGFlag = 0;
  57
  58         gPEKernelConfigurationBitmask = 0;
  59
  60         if (!PE_parse_boot_argn("assertions", &boot_arg_value, sizeof(boot_arg_value))) {
  61 #if MACH_ASSERT
  62                 boot_arg_value = TRUE;
  63 #else
  64                 boot_arg_value = FALSE;
  65 #endif
  66         }
  67         gPEKernelConfigurationBitmask |= (boot_arg_value ? kPEICanHasAssertions : 0);
  68
  69         if (!PE_parse_boot_argn("statistics", &boot_arg_value, sizeof(boot_arg_value))) {
  70 #if DEVELOPMENT || DEBUG
  71                 boot_arg_value = TRUE;
  72 #else
  73                 boot_arg_value = FALSE;
  74 #endif
  75         }
  76         gPEKernelConfigurationBitmask |= (boot_arg_value ? kPEICanHasStatistics : 0);
  77
  78 #if SECURE_KERNEL
  79         boot_arg_value = FALSE;
  80 #else
  81         if (!PE_i_can_has_debugger(NULL)) {
  82                 boot_arg_value = FALSE;
  83         } else if (!PE_parse_boot_argn("diagnostic_api", &boot_arg_value, sizeof(boot_arg_value)))  {
  84                 boot_arg_value = TRUE;
  85         }
  86 #endif
  87         gPEKernelConfigurationBitmask |= (boot_arg_value ? kPEICanHasDiagnosticAPI : 0);
  88
  89 }
  90
  91 void PE_enter_debugger(const char *cause)
  92 {
  93   if (DEBUGFlag & DB_NMI)
  94     Debugger(cause);
  95 }
  96
  97 uint32_t
  98 PE_i_can_has_kernel_configuration(void)
  99 {
 100         return gPEKernelConfigurationBitmask;
 101 }
 102
 103 /* extern references */
 104 extern void vcattach(void);
 105
 106 /* Globals */
 107 void (*PE_putc)(char c);
 108
 109 void PE_init_printf(boolean_t vm_initialized)
 110 {
 111   if (!vm_initialized) {
 112     PE_putc = cnputc;
 113   } else {
 114     vcattach();
 115   }
 116 }
 117
 118 uint32_t
 119 PE_get_random_seed(unsigned char *dst_random_seed, uint32_t request_size)
 120 {
 121         DTEntry         entryP;
 122         uint32_t        size = 0;
 123         void            *dt_random_seed;
 124
 125         if ((DTLookupEntry(NULL, "/chosen", &entryP) == kSuccess)
 126             && (DTGetProperty(entryP, "random-seed",
 127                                 (void **)&dt_random_seed, &size) == kSuccess)) {
 128                 unsigned char *src_random_seed;
 129                 unsigned int i;
 130                 unsigned int null_count = 0;
 131
 132                 src_random_seed = (unsigned char *)dt_random_seed;
 133
 134                 if (size > request_size) size = request_size;
 135
 136                 /*
 137                  * Copy from the device tree into the destination buffer,
 138                  * count the number of null bytes and null out the device tree.
 139                  */
 140                 for (i=0 ; i< size; i++, src_random_seed++, dst_random_seed++) {
 141                         *dst_random_seed = *src_random_seed;
 142                         null_count += *src_random_seed == (unsigned char)0;
 143                         *src_random_seed = (unsigned char)0;
 144                 }
 145                 if (null_count == size)
 146                         /* All nulls is no seed - return 0 */
 147                         size = 0;
 148         }
 149
 150         return(size);
 151 }
 152
 153 unsigned char appleClut8[ 256 * 3 ] = {
 154 // 00
 155         0xFF,0xFF,0xFF, 0xFF,0xFF,0xCC, 0xFF,0xFF,0x99, 0xFF,0xFF,0x66,
 156         0xFF,0xFF,0x33, 0xFF,0xFF,0x00, 0xFF,0xCC,0xFF, 0xFF,0xCC,0xCC,
 157         0xFF,0xCC,0x99, 0xFF,0xCC,0x66, 0xFF,0xCC,0x33, 0xFF,0xCC,0x00,
 158         0xFF,0x99,0xFF, 0xFF,0x99,0xCC, 0xFF,0x99,0x99, 0xFF,0x99,0x66,
 159 // 10
 160         0xFF,0x99,0x33, 0xFF,0x99,0x00, 0xFF,0x66,0xFF, 0xFF,0x66,0xCC,
 161         0xFF,0x66,0x99, 0xFF,0x66,0x66, 0xFF,0x66,0x33, 0xFF,0x66,0x00,
 162         0xFF,0x33,0xFF, 0xFF,0x33,0xCC, 0xFF,0x33,0x99, 0xFF,0x33,0x66,
 163         0xFF,0x33,0x33, 0xFF,0x33,0x00, 0xFF,0x00,0xFF, 0xFF,0x00,0xCC,
 164 // 20
 165         0xFF,0x00,0x99, 0xFF,0x00,0x66, 0xFF,0x00,0x33, 0xFF,0x00,0x00,
 166         0xCC,0xFF,0xFF, 0xCC,0xFF,0xCC, 0xCC,0xFF,0x99, 0xCC,0xFF,0x66,
 167         0xCC,0xFF,0x33, 0xCC,0xFF,0x00, 0xCC,0xCC,0xFF, 0xCC,0xCC,0xCC,
 168         0xCC,0xCC,0x99, 0xCC,0xCC,0x66, 0xCC,0xCC,0x33, 0xCC,0xCC,0x00,
 169 // 30
 170         0xCC,0x99,0xFF, 0xCC,0x99,0xCC, 0xCC,0x99,0x99, 0xCC,0x99,0x66,
 171         0xCC,0x99,0x33, 0xCC,0x99,0x00, 0xCC,0x66,0xFF, 0xCC,0x66,0xCC,
 172         0xCC,0x66,0x99, 0xCC,0x66,0x66, 0xCC,0x66,0x33, 0xCC,0x66,0x00,
 173         0xCC,0x33,0xFF, 0xCC,0x33,0xCC, 0xCC,0x33,0x99, 0xCC,0x33,0x66,
 174 // 40
 175         0xCC,0x33,0x33, 0xCC,0x33,0x00, 0xCC,0x00,0xFF, 0xCC,0x00,0xCC,
 176         0xCC,0x00,0x99, 0xCC,0x00,0x66, 0xCC,0x00,0x33, 0xCC,0x00,0x00,
 177         0x99,0xFF,0xFF, 0x99,0xFF,0xCC, 0x99,0xFF,0x99, 0x99,0xFF,0x66,
 178         0x99,0xFF,0x33, 0x99,0xFF,0x00, 0x99,0xCC,0xFF, 0x99,0xCC,0xCC,
 179 // 50
 180         0x99,0xCC,0x99, 0x99,0xCC,0x66, 0x99,0xCC,0x33, 0x99,0xCC,0x00,
 181         0x99,0x99,0xFF, 0x99,0x99,0xCC, 0x99,0x99,0x99, 0x99,0x99,0x66,
 182         0x99,0x99,0x33, 0x99,0x99,0x00, 0x99,0x66,0xFF, 0x99,0x66,0xCC,
 183         0x99,0x66,0x99, 0x99,0x66,0x66, 0x99,0x66,0x33, 0x99,0x66,0x00,
 184 // 60
 185         0x99,0x33,0xFF, 0x99,0x33,0xCC, 0x99,0x33,0x99, 0x99,0x33,0x66,
 186         0x99,0x33,0x33, 0x99,0x33,0x00, 0x99,0x00,0xFF, 0x99,0x00,0xCC,
 187         0x99,0x00,0x99, 0x99,0x00,0x66, 0x99,0x00,0x33, 0x99,0x00,0x00,
 188         0x66,0xFF,0xFF, 0x66,0xFF,0xCC, 0x66,0xFF,0x99, 0x66,0xFF,0x66,
 189 // 70
 190         0x66,0xFF,0x33, 0x66,0xFF,0x00, 0x66,0xCC,0xFF, 0x66,0xCC,0xCC,
 191         0x66,0xCC,0x99, 0x66,0xCC,0x66, 0x66,0xCC,0x33, 0x66,0xCC,0x00,
 192         0x66,0x99,0xFF, 0x66,0x99,0xCC, 0x66,0x99,0x99, 0x66,0x99,0x66,
 193         0x66,0x99,0x33, 0x66,0x99,0x00, 0x66,0x66,0xFF, 0x66,0x66,0xCC,
 194 // 80
 195         0x66,0x66,0x99, 0x66,0x66,0x66, 0x66,0x66,0x33, 0x66,0x66,0x00,
 196         0x66,0x33,0xFF, 0x66,0x33,0xCC, 0x66,0x33,0x99, 0x66,0x33,0x66,
 197         0x66,0x33,0x33, 0x66,0x33,0x00, 0x66,0x00,0xFF, 0x66,0x00,0xCC,
 198         0x66,0x00,0x99, 0x66,0x00,0x66, 0x66,0x00,0x33, 0x66,0x00,0x00,
 199 // 90
 200         0x33,0xFF,0xFF, 0x33,0xFF,0xCC, 0x33,0xFF,0x99, 0x33,0xFF,0x66,
 201         0x33,0xFF,0x33, 0x33,0xFF,0x00, 0x33,0xCC,0xFF, 0x33,0xCC,0xCC,
 202         0x33,0xCC,0x99, 0x33,0xCC,0x66, 0x33,0xCC,0x33, 0x33,0xCC,0x00,
 203         0x33,0x99,0xFF, 0x33,0x99,0xCC, 0x33,0x99,0x99, 0x33,0x99,0x66,
 204 // a0
 205         0x33,0x99,0x33, 0x33,0x99,0x00, 0x33,0x66,0xFF, 0x33,0x66,0xCC,
 206         0x33,0x66,0x99, 0x33,0x66,0x66, 0x33,0x66,0x33, 0x33,0x66,0x00,
 207         0x33,0x33,0xFF, 0x33,0x33,0xCC, 0x33,0x33,0x99, 0x33,0x33,0x66,
 208         0x33,0x33,0x33, 0x33,0x33,0x00, 0x33,0x00,0xFF, 0x33,0x00,0xCC,
 209 // b0
 210         0x33,0x00,0x99, 0x33,0x00,0x66, 0x33,0x00,0x33, 0x33,0x00,0x00,
 211         0x00,0xFF,0xFF, 0x00,0xFF,0xCC, 0x00,0xFF,0x99, 0x00,0xFF,0x66,
 212         0x00,0xFF,0x33, 0x00,0xFF,0x00, 0x00,0xCC,0xFF, 0x00,0xCC,0xCC,
 213         0x00,0xCC,0x99, 0x00,0xCC,0x66, 0x00,0xCC,0x33, 0x00,0xCC,0x00,
 214 // c0
 215         0x00,0x99,0xFF, 0x00,0x99,0xCC, 0x00,0x99,0x99, 0x00,0x99,0x66,
 216         0x00,0x99,0x33, 0x00,0x99,0x00, 0x00,0x66,0xFF, 0x00,0x66,0xCC,
 217         0x00,0x66,0x99, 0x00,0x66,0x66, 0x00,0x66,0x33, 0x00,0x66,0x00,
 218         0x00,0x33,0xFF, 0x00,0x33,0xCC, 0x00,0x33,0x99, 0x00,0x33,0x66,
 219 // d0
 220         0x00,0x33,0x33, 0x00,0x33,0x00, 0x00,0x00,0xFF, 0x00,0x00,0xCC,
 221         0x00,0x00,0x99, 0x00,0x00,0x66, 0x00,0x00,0x33, 0xEE,0x00,0x00,
 222         0xDD,0x00,0x00, 0xBB,0x00,0x00, 0xAA,0x00,0x00, 0x88,0x00,0x00,
 223         0x77,0x00,0x00, 0x55,0x00,0x00, 0x44,0x00,0x00, 0x22,0x00,0x00,
 224 // e0
 225         0x11,0x00,0x00, 0x00,0xEE,0x00, 0x00,0xDD,0x00, 0x00,0xBB,0x00,
 226         0x00,0xAA,0x00, 0x00,0x88,0x00, 0x00,0x77,0x00, 0x00,0x55,0x00,
 227         0x00,0x44,0x00, 0x00,0x22,0x00, 0x00,0x11,0x00, 0x00,0x00,0xEE,
 228         0x00,0x00,0xDD, 0x00,0x00,0xBB, 0x00,0x00,0xAA, 0x00,0x00,0x88,
 229 // f0
 230         0x00,0x00,0x77, 0x00,0x00,0x55, 0x00,0x00,0x44, 0x00,0x00,0x22,
 231         0x00,0x00,0x11, 0xEE,0xEE,0xEE, 0xDD,0xDD,0xDD, 0xBB,0xBB,0xBB,
 232         0xAA,0xAA,0xAA, 0x88,0x88,0x88, 0x77,0x77,0x77, 0x55,0x55,0x55,
 233         0x44,0x44,0x44, 0x22,0x22,0x22, 0x11,0x11,0x11, 0x00,0x00,0x00
 234 };
 235