forked from Imagelibrary/rtems
eea21eaca1
The work area initialization was done by the BSP through bsp_work_area_initialize(). This approach predated the system initialization through the system initialization linker set. The workspace and C program heap were unconditionally initialized. The aim is to support RTEMS application configurations which do not need the workspace and C program heap. In these configurations, the workspace and C prgram heap should not get initialized. Change all bsp_work_area_initialize() to implement _Memory_Get() instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and malloc() heap initialization into separate system initialization steps. This makes it also easier to test the individual initialization steps. This change adds a dependency to _Heap_Extend() to all BSPs. This dependency will be removed in a follow up change. Update #3838.
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsSharedStartup
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*/
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/*
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* Copyright (c) 2008-2014 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifndef LIBBSP_SHARED_BOOTCARD_H
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#define LIBBSP_SHARED_BOOTCARD_H
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#include <rtems/config.h>
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#include <rtems/bspIo.h>
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#include <rtems/malloc.h>
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#include <rtems/score/memory.h>
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#include <rtems/score/wkspace.h>
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#include <bspopts.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @defgroup RTEMSBSPsSharedStartup Bootcard
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*
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* @ingroup RTEMSBSPsShared
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*
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* @brief Standard system startup.
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*
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* @{
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*/
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/**
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* @brief Global pointer to the command line of boot_card().
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*/
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extern const char *bsp_boot_cmdline;
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void bsp_start(void);
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void bsp_reset(void);
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/**
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* @brief Standard system initialization procedure.
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*
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* You may pass a command line in @a cmdline. It is later available via the
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* global @ref bsp_boot_cmdline variable.
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*
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* This is the C entry point for ALL RTEMS BSPs. It is invoked from the
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* assembly language initialization file usually called @c start.S which does
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* the basic CPU setup (stack, C runtime environment, zero BSS, load other
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* sections) and calls afterwards boot_card(). The boot card function provides
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* the framework for the BSP initialization sequence. For the basic flow of
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* initialization see RTEMS C User's Guide, Initialization Manager.
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*
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* This style of initialization ensures that the C++ global constructors are
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* executed after RTEMS is initialized.
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*/
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void boot_card(const char *cmdline) RTEMS_NO_RETURN;
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struct Per_CPU_Control;
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/**
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* @brief Standard start routine for secondary processors.
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*
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* This function is usually called by low-level startup code of secondary
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* processors or boot loaders starting a secondary processor. The final step
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* of this function is a call to
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* _SMP_Start_multitasking_on_secondary_processor().
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*/
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void bsp_start_on_secondary_processor(struct Per_CPU_Control *cpu_self);
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/** @} */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* LIBBSP_SHARED_BOOTCARD_H */
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