1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup bsp_bootcard |
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5 | * |
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6 | * @brief Standard system startup. |
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7 | * |
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8 | * This is the C entry point for ALL RTEMS BSPs. It is invoked |
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9 | * from the assembly language initialization file usually called |
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10 | * start.S. It provides the framework for the BSP initialization |
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11 | * sequence. For the basic flow of initialization see RTEMS C User's Guide, |
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12 | * Initialization Manager. |
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13 | * |
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14 | * This style of initialization ensures that the C++ global |
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15 | * constructors are executed after RTEMS is initialized. |
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16 | * Thanks to Chris Johns <cjohns@plessey.com.au> for the idea |
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17 | * to move C++ global constructors into the first task. |
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18 | */ |
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19 | |
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20 | /* |
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21 | * COPYRIGHT (c) 1989-2014. |
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22 | * On-Line Applications Research Corporation (OAR). |
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23 | * |
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24 | * The license and distribution terms for this file may be |
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25 | * found in the file LICENSE in this distribution or at |
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26 | * http://www.rtems.org/license/LICENSE. |
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27 | */ |
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28 | |
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29 | #include <bsp/bootcard.h> |
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30 | |
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31 | #include <rtems.h> |
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32 | #include <rtems/sysinit.h> |
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33 | |
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34 | /* |
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35 | * At most a single pointer to the cmdline for those target |
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36 | * short on memory and not supporting a command line. |
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37 | */ |
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38 | const char *bsp_boot_cmdline; |
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39 | |
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40 | RTEMS_SYSINIT_ITEM( |
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41 | bsp_work_area_initialize, |
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42 | RTEMS_SYSINIT_BSP_WORK_AREAS, |
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43 | RTEMS_SYSINIT_ORDER_MIDDLE |
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44 | ); |
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45 | |
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46 | RTEMS_SYSINIT_ITEM( |
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47 | bsp_start, |
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48 | RTEMS_SYSINIT_BSP_START, |
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49 | RTEMS_SYSINIT_ORDER_MIDDLE |
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50 | ); |
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51 | |
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52 | /* |
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53 | * This is the initialization framework routine that weaves together |
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54 | * calls to RTEMS and the BSP in the proper sequence to initialize |
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55 | * the system while maximizing shared code and keeping BSP code in C |
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56 | * as much as possible. |
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57 | */ |
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58 | void boot_card( |
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59 | const char *cmdline |
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60 | ) |
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61 | { |
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62 | rtems_interrupt_level bsp_isr_level; |
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63 | |
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64 | /* |
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65 | * Make sure interrupts are disabled. |
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66 | */ |
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67 | (void) bsp_isr_level; |
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68 | rtems_interrupt_local_disable( bsp_isr_level ); |
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69 | |
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70 | bsp_boot_cmdline = cmdline; |
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71 | |
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72 | rtems_initialize_executive(); |
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73 | |
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74 | /*************************************************************** |
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75 | *************************************************************** |
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76 | * APPLICATION RUNS NOW!!! We will not return to here!!! * |
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77 | *************************************************************** |
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78 | ***************************************************************/ |
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79 | } |
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