Sebastian Huber d0c3983814 Use linker set for system initialization
Make rtems_initialize_data_structures(),
rtems_initialize_before_drivers() and rtems_initialize_device_drivers()
static.  Rename rtems_initialize_start_multitasking() to
rtems_initialize_executive() and call the registered system
initialization handlers in this function.  Add system initialization API
available via #include <rtems/sysinit.h>.  Update the documentation
accordingly.

This is no functional change, only the method to call the existing
initialization routines changes.  Instead of direct function calls a
table of function pointers contained in the new RTEMS system
initialization linker set is used.  This table looks like this (the
actual addresses depend on the target).

nm *.exe | grep _Linker | sort
0201a2d0 D _Linker_set__Sysinit_begin
0201a2d0 D _Linker_set__Sysinit_bsp_work_area_initialize
0201a2d4 D _Linker_set__Sysinit_bsp_start
0201a2d8 D _Linker_set__Sysinit_rtems_initialize_data_structures
0201a2dc D _Linker_set__Sysinit_bsp_libc_init
0201a2e0 D _Linker_set__Sysinit_rtems_initialize_before_drivers
0201a2e4 D _Linker_set__Sysinit_bsp_predriver_hook
0201a2e8 D _Linker_set__Sysinit_rtems_initialize_device_drivers
0201a2ec D _Linker_set__Sysinit_bsp_postdriver_hook
0201a2f0 D _Linker_set__Sysinit_end

Add test sptests/spsysinit01.

Update #2408.
2015-12-11 08:17:16 +01:00
2015-09-11 08:24:18 +02:00
2013-05-27 14:47:20 +02:00
2015-11-12 11:30:25 +01:00
2013-06-18 13:38:31 +02:00
2012-10-09 19:26:51 +02:00
2013-09-19 13:16:06 +02:00
2015-05-28 14:41:37 +02:00
2013-05-27 14:47:20 +02:00
2013-05-27 14:47:20 +02:00
2015-05-14 06:40:45 -07:00
2013-05-27 14:47:20 +02:00

This is the Real-Time Executive for Multiprocessing Systems (RTEMS).
The version number for this software is indicated in the VERSION file.

See the documentation manuals in doc/ with daily builds available online at
http://rtems.org/onlinedocs/doc-current/share/rtems/html/ and released builds
at http://www.rtems.org/onlinedocs/releases/ for information on building,
installing, and using RTEMS. The INSTALL file tells you to come back here.

See the RTEMS Wiki at http://devel.rtems.org for community knowledge and
tutorials.

RTEMS Doxygen available at http://www.rtems.org/onlinedocs/doxygen/cpukit/html

The RTEMS Project maintains mailing lists which are used for most
discussions:

* For general-purpose questions related to using RTEMS, use the
  rtems-users ml: https://lists.rtems.org/mailman/listinfo/users
* For questions and discussion related to development of RTEMS, use the
  rtems-devel ml: https://lists.rtems.org/mailman/listinfo/devel

See https://devel.rtems.org/ to view existing or file a new issue
report ticket.

Description
RTEMS is a ​real-time executive in use by embedded systems applications around the world and beyond
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