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fc-loadtool help: improve language regarding 16 MiB flash chips In FC project history, 16 MiB flash originally meant Pirelli DP-L10. Then we got FCDEV3B with the same flash (our own design), but now we are discovering more Calypso devices that used such large flash, both late Calypso era (Sony Ericsson K2x0) as well as much earlier ones (FIC FLUID devices.txt file with 2004 dates, Leonardo+ rev 5). Hence we need to migrate to more generic or neutral language in associated documentation, without giving elevated status to specific examples that drove our early project history.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Dec 2023 21:11:12 +0000
parents 0a01e1c4ea54
children
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1 It has been brought to the Mother's attention that some people don't like the
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2 way our FC host tools are designed to be installed under /opt/freecalypso as
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3 opposed to some standard location like /usr/local, and that some people have
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4 been patching our Makefiles and code to move our installed binaries (and perhaps
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5 some of the support files as well) to other locations which they like better.
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6
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7 PLEASE DON'T DO IT, especially if you are making a package or a build or setup
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8 or install script to be used by more than just you. FC host tools are a very
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9 complex package with a lot of interrelations between different tools, many
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10 tools in our suite internally invoke other tools by their /opt/freecalypso/bin
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11 absolute pathnames, some tools are designed to be invoked both by human users
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12 and by other tools (rvinterf is a prime example), and there are many support
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13 files used by various tools. If you try to outsmart the Mother and change the
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14 install location to something other than what I designed it to be, you will
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15 inevitably break something, and you probably won't notice the breakage because
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16 a typical casual user only uses a very small subset of our tools. Furthermore,
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17 if you move the install location, you will certainly break our various
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18 additional tools which are not included in the core FC host tools package but
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19 are meant to be installed on top of it, as all of them expect and require the
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20 /opt/freecalypso directory hierarchy described in doc/opt-freecalypso-tree.
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21
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22 If your goal is to have our installed binaries accessible with a standard PATH
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23 without adding /opt/freecalypso/bin to it, the correct solution is to list the
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24 binaries installed in /opt/freecalypso/bin and make a symlink to each of these
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25 binaries from /usr/bin or from /usr/local/bin or from wherever you like. Use
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26 symlinks, don't move the binaries themselves! If you move the actual binaries,
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27 you will break those tools which internally invoke other tools, which we do a
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28 lot.
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29
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30 If you still dislike the whole idea, consider the way Firefox does it: official
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31 release binaries from Mozilla are meant to be installed under /usr/lib/firefox
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32 or /usr/lib/firefox-$VERSION, the stuff inside that directory looks nothing like
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33 FHS, it is private to Firefox just like our /opt/freecalypso directory hierarchy
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34 is private to FreeCalypso, and the user makes one symlink from /usr/bin/firefox
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35 to /usr/lib/firefox-$VERSION/firefox or wherever the full complex package
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36 resides. If you can live with Firefox and other major application packages
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37 having their own non-FHS private directory trees, you can surely live with
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38 FreeCalypso doing the same.
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39
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40 Why did we make our prefix /opt/freecalypso and not /usr/lib/freecalypso or
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41 /usr/local/freecalypso? Because there are many, many places where the full
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42 absolute pathname needs to be typed, and the location we chose is the shortest
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43 among other sensible options.
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44
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45 Anyone who is going to make binary packages of our FC host tools (presumably
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46 for use on systems on which compilation from source is difficult) and wishes to
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47 have their packaging officially endorsed by the upstream MUST follow these
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48 guidelines:
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49
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50 * The complete set of tools and support files MUST be included as if one built
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51 and installed our package from the official source, without omitting or
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52 breaking any part which you might consider unimportant.
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53
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54 * Everything MUST be installed under /opt/freecalypso exactly as designed by
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55 the Mother; symlinks to binaries under /opt/freecalypso/bin from a more user-
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56 friendly location may optionally be included.