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ivang |
#
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# UPDATE_HELP,v 1.3 1995/12/19 19:59:03 joel Exp
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#
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Between RTEMS 3.1.0 and 3.2.0, every RTEMS defined symbol made visible
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was renamed. This document describes the change and the tools provided
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to assist you in updating your RTEMS 3.1.0 application.
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[NOTE: This change was not included in snapshots prior to 3.1.15.]
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DESCRIPTION OF NAME CHANGES:
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============================
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The primary change was the addition of the prefix "rtems_" or "RTEMS_" to
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EVERY user visible RTEMS provided constant and routine. The primary
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factor in the decision to make such a sweeping change was conflicts
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between the the RTEMS and POSIX API's.
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TO UPDATE YOUR APPLICATION:
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===========================
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The update script requires that Perl be installed on your computer.
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It has only been tested with Perl 5.x.
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After RTEMS has been built, in the directory "$r//update_tools", will
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be a set of tools to aid in making the application source changes necessary
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to address (hopefully) all of the name changes in the RTEMS API between
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releases 3.1.0 and 3.2.0.
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The update shell script is the only executable which is invoked by the
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user directly. The word-replace Perl script is invoked by the update
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shell script.
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WARNING: These tools modify the files IN PLACE!!! Backup your
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source before using these tools.
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To udpate your application, change directories to the top of your application
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source tree and execute the update script. It should be something similar
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to the following:
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cd MY_APP
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$r//update-tools/update
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The update script will ask if you have backed up your source code before
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beginning the update process. While operating on files, it will print
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the name of each file and a dot for each change made to the source file.
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NOTE: These scripts do not attempt to address changes in calling
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sequences. After the script has run, you will need to update
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calls to rtems_clock_get(), rtems_timer_fire_after(), and
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rtems_timer_fire_when() by hand.
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