[eb04e53] | 1 | /* |
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| 2 | * COPYRIGHT (c) 1989-2007. |
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| 3 | * On-Line Applications Research Corporation (OAR). |
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| 4 | * |
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| 5 | * The license and distribution terms for this file may be found in |
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| 6 | * the file LICENSE in this distribution or at |
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| 7 | * http://www.rtems.com/license/LICENSE. |
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| 8 | * |
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| 9 | * $Id$ |
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| 10 | */ |
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| 11 | |
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| 12 | #include <bsp.h> |
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| 13 | |
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| 14 | #include <assert.h> |
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| 15 | #include <pthread.h> |
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| 16 | #include <stdlib.h> |
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| 17 | |
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| 18 | #if defined(MAIN_USE_NETWORKING) |
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| 19 | #include <rtems/rtems_bsdnet.h> |
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| 20 | #include "networkconfig.h" |
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| 21 | #endif |
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| 22 | #if defined(ENABLE_UNTAR_ROOT_FILESYSTEM) |
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| 23 | #include <rtems/untar.h> |
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| 24 | /* |
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| 25 | * The tarfile image is built automatically externally. |
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| 26 | */ |
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| 27 | #include "FilesystemImage.h" |
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| 28 | #endif |
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| 29 | |
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| 30 | |
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| 31 | extern rtems_configuration_table BSP_Configuration; |
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| 32 | |
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| 33 | /* |
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| 34 | * Using GNAT's Distributed Systems Annex support requires |
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| 35 | * each node in the system to have different pid's. In a |
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| 36 | * single CPU RTEMS system, it is always one. This lets the |
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| 37 | * user override the RTEMS default. |
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| 38 | */ |
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| 39 | #ifdef GNAT_PID |
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| 40 | #include <unistd.h> |
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| 41 | |
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| 42 | pid_t getpid() |
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| 43 | { |
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| 44 | return GNAT_PID; |
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| 45 | } |
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| 46 | #endif |
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| 47 | |
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| 48 | /* |
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| 49 | * Set up first argument |
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| 50 | */ |
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| 51 | static int argc = 1; |
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| 52 | static char arg0[20] = "rtems"; |
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| 53 | static char *argv[20] = { arg0 }; |
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| 54 | |
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| 55 | #if defined(MAIN_USE_REQUIRES_COMMAND_LINE) |
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| 56 | |
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| 57 | #define COMMAND_LINE_MAXIMUM 200 |
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| 58 | |
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| 59 | #include <stdio.h> |
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| 60 | #include <ctype.h> |
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| 61 | |
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| 62 | void parse_arguments( |
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| 63 | char *buffer, |
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| 64 | size_t maximum_length |
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| 65 | ) |
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| 66 | { |
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| 67 | char *cp; |
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| 68 | char *linebuf = buffer; |
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| 69 | size_t length; |
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| 70 | |
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| 71 | for (;;) { |
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| 72 | |
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| 73 | #if defined(MAIN_COMMAND_LINE) |
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| 74 | strncpy (linebuf, MAIN_COMMAND_LINE, maximum_length); |
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| 75 | #else |
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| 76 | /* |
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| 77 | * Read a line |
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| 78 | */ |
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| 79 | printf (">>> %s ", argv[0]); |
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| 80 | fflush (stdout); |
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| 81 | fgets (linebuf, maximum_length, stdin); |
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| 82 | |
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| 83 | length = strnlen( linebuf, maximum_length ); |
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| 84 | if ( linebuf[length - 1] == '\n' || linebuf[length - 1] == '\r' ) { |
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| 85 | linebuf[length - 1] = '\0'; |
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| 86 | } |
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| 87 | #endif |
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| 88 | |
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| 89 | /* |
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| 90 | * Break line into arguments |
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| 91 | */ |
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| 92 | cp = linebuf; |
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| 93 | for (;;) { |
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| 94 | while (isspace (*cp)) |
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| 95 | *cp++ = '\0'; |
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| 96 | if (*cp == '\0') |
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| 97 | break; |
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| 98 | if (argc >= ((sizeof argv / sizeof argv[0]) - 1)) { |
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| 99 | printf ("Too many arguments.\n"); |
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| 100 | argc = 0; |
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| 101 | break; |
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| 102 | } |
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| 103 | argv[argc++] = cp; |
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| 104 | while (!isspace (*cp)) { |
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| 105 | if (*cp == '\0') |
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| 106 | break; |
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| 107 | cp++; |
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| 108 | } |
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| 109 | } |
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| 110 | if (argc > 1) { |
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| 111 | argv[argc] = NULL; |
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| 112 | break; |
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| 113 | } |
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| 114 | printf ("You must give some arguments!\n"); |
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| 115 | } |
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| 116 | |
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| 117 | #if defined(DEBUG_COMMAND_LINE_ARGUMENTS) |
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| 118 | { |
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| 119 | int i; |
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| 120 | for (i=0; i<argc ; i++ ) { |
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| 121 | printf( "argv[%d] = ***%s***\n", i, argv[i] ); |
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| 122 | } |
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| 123 | printf( "\n" ); |
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| 124 | } |
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| 125 | #endif |
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| 126 | } |
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| 127 | |
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| 128 | |
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| 129 | #endif |
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| 130 | |
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| 131 | /* |
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| 132 | * By having the POSIX_Init thread create a second thread just |
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| 133 | * to invoke gnat_main, we can override all default attributes |
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| 134 | * of the "Ada environment task". Otherwise, we would be |
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| 135 | * stuck with the defaults set by RTEMS. |
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| 136 | */ |
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| 137 | |
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| 138 | void *start_gnat_main( void * argument ) |
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| 139 | { |
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| 140 | extern int gnat_main ( int argc, char **argv, char **envp ); |
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| 141 | |
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| 142 | #if defined(MAIN_USE_REQUIRES_COMMAND_LINE) |
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| 143 | /* |
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| 144 | * This is scoped to match the Ada program. |
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| 145 | */ |
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| 146 | char command_line[ COMMAND_LINE_MAXIMUM ]; |
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| 147 | |
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| 148 | parse_arguments( command_line, COMMAND_LINE_MAXIMUM ); |
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| 149 | #endif |
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| 150 | |
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| 151 | (void) gnat_main ( argc, argv, 0 ); |
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| 152 | |
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| 153 | exit( 0 ); |
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| 154 | |
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| 155 | return 0; |
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| 156 | } |
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| 157 | |
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| 158 | #ifndef GNAT_MAIN_STACKSPACE |
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| 159 | #define GNAT_MAIN_STACKSPACE 0 |
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| 160 | #endif |
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| 161 | |
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| 162 | void *POSIX_Init( void *argument ) |
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| 163 | { |
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| 164 | pthread_t thread_id; |
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| 165 | pthread_attr_t attr; |
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| 166 | size_t stacksize; |
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| 167 | int status; |
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| 168 | extern size_t _ada_pthread_minimum_stack_size(); |
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| 169 | |
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| 170 | #if defined(ENABLE_UNTAR_ROOT_FILESYSTEM) |
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| 171 | printk("Loading filesystem image\n"); |
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| 172 | status = Untar_FromMemory( (char *)FilesystemImage, FilesystemImage_size ); |
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| 173 | #endif |
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| 174 | |
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| 175 | #if defined(MAIN_USE_NETWORKING) |
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| 176 | printk("Initializing Network\n"); |
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| 177 | rtems_bsdnet_initialize_network (); |
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[14f44a3] | 178 | rtems_bsdnet_show_inet_routes (); |
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[eb04e53] | 179 | #endif |
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| 180 | |
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[e72d576] | 181 | #if defined(MAIN_CALL_C_INITIALIZE_APPLICATION) |
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| 182 | { |
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| 183 | extern void initialize_application(); |
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[92f495a] | 184 | printk("Invoking C Application Initialization\n"); |
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[e72d576] | 185 | initialize_application(); |
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| 186 | } |
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| 187 | #endif |
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| 188 | |
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| 189 | /* |
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| 190 | * Now create the thread that will be the GNAT Ada main. |
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| 191 | */ |
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[eb04e53] | 192 | status = pthread_attr_init( &attr ); |
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| 193 | assert( !status ); |
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| 194 | |
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| 195 | stacksize = GNAT_MAIN_STACKSPACE * 1024; |
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| 196 | if ( stacksize < _ada_pthread_minimum_stack_size() ) |
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| 197 | stacksize = _ada_pthread_minimum_stack_size(); |
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| 198 | |
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| 199 | status = pthread_attr_setstacksize( &attr, stacksize ); |
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| 200 | assert( !status ); |
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| 201 | |
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[016859d] | 202 | attr.schedpolicy = SCHED_RR; |
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| 203 | attr.schedparam.sched_priority = 122; |
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[eb04e53] | 204 | status = pthread_create( &thread_id, &attr, start_gnat_main, NULL ); |
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| 205 | assert( !status ); |
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| 206 | |
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| 207 | pthread_exit( 0 ); |
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| 208 | return 0; |
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| 209 | } |
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| 210 | |
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| 211 | /* configuration information */ |
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| 212 | |
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[e72d576] | 213 | #if defined(HAS_EXTRA_CONFIGURATION) |
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| 214 | #include "config.h" |
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| 215 | #endif |
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| 216 | |
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[eb04e53] | 217 | /* Standard output and a clock tick so time passes */ |
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| 218 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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| 219 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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| 220 | |
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| 221 | /* We need to be able to create sockets */ |
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| 222 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 20 |
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| 223 | |
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| 224 | /* We need the full IMFS to pass the full ACATS */ |
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| 225 | #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM |
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| 226 | |
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| 227 | /* This is overkill but is definitely enough to run the network stack */ |
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| 228 | #define CONFIGURE_MAXIMUM_TASKS 20 |
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| 229 | #define CONFIGURE_MAXIMUM_SEMAPHORES 20 |
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| 230 | |
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| 231 | /* We want a clock tick every millisecond */ |
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| 232 | #define CONFIGURE_MICROSECONDS_PER_TICK RTEMS_MILLISECONDS_TO_MICROSECONDS(1) |
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| 233 | |
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[e72d576] | 234 | /* The initialization task is a POSIX Initialization thread with default |
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| 235 | * attributes. |
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| 236 | */ |
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[eb04e53] | 237 | #define CONFIGURE_POSIX_INIT_THREAD_TABLE |
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| 238 | |
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[e72d576] | 239 | /* We are using GNAT/RTEMS with a maximum of 20 Ada tasks and no fake Ada |
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| 240 | * tasks. |
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| 241 | * NOTE: A fake Ada task is a task created outside the Ada run-time that |
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| 242 | * calls into Ada. |
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| 243 | */ |
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[eb04e53] | 244 | #define CONFIGURE_GNAT_RTEMS |
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| 245 | #define CONFIGURE_MAXIMUM_ADA_TASKS 20 |
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[54c65c0] | 246 | |
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| 247 | #if !defined(CONFIGURE_MAXIMUM_FAKE_ADA_TASKS) |
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| 248 | #define CONFIGURE_MAXIMUM_FAKE_ADA_TASKS 0 |
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| 249 | #endif |
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[eb04e53] | 250 | |
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[87a2137] | 251 | #if !defined(ADA_APPLICATION_NEEDS_EXTRA_MEMORY) |
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| 252 | #define ADA_APPLICATION_NEEDS_EXTRA_MEMORY 0 |
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| 253 | #endif |
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| 254 | |
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[eb04e53] | 255 | /* Account for any extra task stack size */ |
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[87a2137] | 256 | #define CONFIGURE_MEMORY_OVERHEAD \ |
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| 257 | (ADA_APPLICATION_NEEDS_EXTRA_MEMORY + GNAT_MAIN_STACKSPACE) |
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[eb04e53] | 258 | |
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[016859d] | 259 | /* Make sure the C Program Heap and Workspace are zeroed for GNAT */ |
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| 260 | #define CONFIGURE_ZERO_WORKSPACE_AUTOMATICALLY TRUE |
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| 261 | |
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[eb04e53] | 262 | #define CONFIGURE_INIT |
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| 263 | |
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[016859d] | 264 | void _flush_cache() {} |
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[eb04e53] | 265 | #include <rtems/confdefs.h> |
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