FreeCalypso > hg > fc-magnetite

annotate cdg3/README @ 701:35e7f9d0379f

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targets: add TARGET_HAS_BUZZER to c11x, c139 and dsample This new target config preprocessor symbol was introduced in Tourmaline in connection with the new approach to playing buzzer melodies via PWT, properly omitting the responsible code on targets where BU output controls the vibrator instead. That code is not present in Magnetite and we have no plans to backport it here, but target header files should be kept consistent between the two trees, especially given that we plan to support FC Venus target in Magnetite.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 26 Mar 2022 19:51:34 +0000
parents c15047b3d00d
children
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1 There exists a set of C header files, needed for TI's GSM firmware to build,
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2 called cdginc. They are not needed for building everything up to and including
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3 GPF and L1, but they are needed in order to build the core G23 protocol stack
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4 components.
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5
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6 However, these cdginc headers are generated files, not human-written sources,
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7 and the process by which they get created is very messy:
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8
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9 1. Contained as part of the ultimate source for the firmware, there is a set of
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10 XML files which give definitions for Air Interface Messages (AIMs) and
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11 Service Access Points (SAPs).
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12
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13 2. Each *.aim file is "compiled" into an MDF (message definition file) and each
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14 *.sap file gets similarly "compiled" into a PDF (primitive definition file).
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15 (Despite sharing the same acronym and filename suffix, these "primitive
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16 definition files" have nothing to do with PDF as in Portable Document
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17 Format.) This "compilation" is done by way of XSLT: an XSLT processor is
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18 invoked, its inputs being the source *.{aim,sap} files and a set of *.xsl
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19 files defining the transformation. (The latter can be found under
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20 gpf/util/sape/xslt in the "peek" LoCosto source.)
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21
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22 3. A special TI/Condat-developed program called ccdgen (which we only have in
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23 the form of an M$ Windows binary sans source, ccdgen.exe) reads the *.mdf
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24 and *.pdf files produced in the previous step, performs some unknown
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25 processing (unknown because we have no source for this tool), and writes out
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26 most of the C header files which appear in the cdginc directory. (The
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27 exception is that a few of these header files seem to be produced directly
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28 by the XSLT step.)
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29
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30 ==================
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31 XSLT and Java woes
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32 ==================
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33
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34 When I (Space Falcon) tried to reproduce the above steps for FreeCalypso,
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35 problems began at the XSLT step. The XSLT processor used in TI's build flow is
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36 an old version of Xalan-J from Apache. J stands for Java - yikes. Thus TI's
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37 build flow actually runs java with a set of *.jar files which comprise Xalan-J.
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38
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39 I looked to see if the use of Xalan-J (and thus of Java) was required, or if
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40 one could use any XSLT processor, including non-Java implementations. Not so
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41 fast: TI's *.xsl files for the needed transformation call some functions
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42 (please forgive my probably incorrect terminology: both XSLT and Java are as
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43 foreign and unfamiliar to me as Japanese or Arabic or ... - you get the idea)
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44 which seem to have been implemented by TI as custom Java classes, falling under
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45 com.ti.xslt.extension - the latter live in gpf/tools/lib/java/xalan-ext.jar in
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46 TI's semi-source trees (both Leonardo and LoCosto), if you would like to see
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47 for yourself.
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48
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49 That xalan-ext.jar file with TI's "XSLT extension" classes contains Java
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50 bytecode, not source. Thus one of the required pieces for the *.{aim,sap} ->
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51 *.{mdf,pdf} build step effectively exists only in the form of compiled code
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52 sans source. It is of course an impairment to freedom, and as I quickly
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53 discovered, not only in philosophical terms, but also in practice: as I will
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54 show in a moment, there appears to be a bug in there which we lack the ability
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55 to fix.
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56
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57 Of course TI ran their java invokation for XSLT under Winblows. (As a side
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58 note, I successfully ran TI's entire Winblows environment, including this step,
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59 under Wine when I did leo2moko - but I wasn't trying to extract any individual
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60 step and get it to run by itself, instead I ran TI's *entire Winblows env*
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61 under a single top-level wine invokation.) But Java bytecode is supposed to be
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62 platform-independent, right? So I tried running the java command from pdt_*.mak
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63 makefiles in the Leonardo version, using their set of XSLT/xalan jars as-is,
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64 under Slackware Linux without Wine, using the Linux-native version of Java that
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65 came with Slackware.
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66
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67 I started with the AIM->MDF part. The operation succeeded on a few of the
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68 files, but then failed on others. The error had something to do with filename
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69 and pathname manipulation. Some of the com.ti.xslt.extension functions called
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70 by TI's xslt transforms seem to be responsible for turning short filenames into
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71 absolute pathnames and then into file:// URLs, and it appears that TI's
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72 implementation of these functions assumes that absolute pathnames will have
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73 Weendoze drive letters, and breaks on Unix absolute pathnames which lack that
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74 nonsense. And the part responsible for the bug is a piece of Java bytecode in
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75 a jar sans source, remember? I didn't get as far as trying the SAP->PDF part.
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76
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77 I reason that someone who knows the world of Java could probably reverse-eng
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78 that bytecode and fix the bug with a binary patch, or rewrite an alternate
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79 implementation. Reversing Java bytecode might not even be necessary: someone
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80 who understands XSLT could probably figure out what functionality is expected
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81 from these extension functions, and then reimplement that (most likely trivial)
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82 functionality anew. But XSLT is just as foreign to me as Java; they both might
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83 as well be Japanese or Arabic or some other super-hard foreign language.
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84
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85 Given that my goal is to produce free GSM firmware, I decided that taking a
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86 very long detour to learn XSLT and Java just so we can regenerate TI's *.[mp]df
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87 files from *.{aim,sap} is not worth it, and imported prebuilt *.[mp]df files
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88 from the LoCosto source along with *.{aim,sap}.
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89
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90 ============================
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91 Different versions of cdginc
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92 ============================
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93
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94 Most of the hard work in the FreeCalypso project involves reconciliation between
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95 our two reference versions: TCS211 (aka Leonardo) and LoCosto. Our TCS211
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96 reference version (in the form of leo2moko) already runs on one of our target
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97 platforms and works beautifully, but it has the entire GSM protocol stack in
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98 binary-only libs. The LoCosto version is full source (aside from Nucleus and
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99 some parts of GPF which have already been taken care of), but targets the wrong
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100 chipset, and has that nasty SBuild crap instead of pdt_*.mak.
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101
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102 The versions of cdginc used in the TCS211 and LoCosto semi-src trees differ in
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103 the following ways:
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104
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105 1. The starting *.aim and *.sap files are different: the LoCosto versions are
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106 newer.
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107
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108 2. Slightly different versions of ccdgen.exe are used: the version featured in
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109 the TCS211 version from Sotovik identifies itself as 2.5.5, whereas the one
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110 featured in the LoCosto "peek" find identifies itself as 2.5.5A. Aside from
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111 some cosmetic differences, one substantive difference was found in the
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112 generated output: the so-called mtx tables (don't ask me what they are, as I
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 don't understand it myself) are emitted in a different format. (Ccdgen
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 version 2.5.5A generates the new format by default, and has a command line
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 option to revert to the old format.)
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 These "mtx" generated header files are included by some ccddata modules (see
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 ../ccd/README for more info), and the only C source we have for these modules
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 (for all of CCD, in fact) comes from the LoCosto version. This version of
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 the ccddata C source expects "mtx" cdginc headers in the new format, hence
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 that is the format we need to use.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 3. One additional input to ccdgen besides the *.[mp]df files is a "settings"
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 file called fflags.h. It has the form of a C header file with #define and
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 #undef lines (the rest is just comments), but as far as I can tell, it never
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 gets fed to a C preprocessor, only to ccdgen. The starting *.{aim,sap} files
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 contain some "options", and for each of these options, fflags.h must give a
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 yes/no answer in the form of $define or #undef. This "settings" file is
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 mandatory: if it is not given on the ccdgen command line, or if it has
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 neither a #define nor a #undef for some "option" defined in the *.{aim,sap}
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 files, ccdgen aborts with an error.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 It appears that the version of *.{aim,sap} featured in the TCS211 fw has only
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 one option named TI_DUAL_MODE, which needs to be disabled, as the version of
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 fflags.h in that tree has only one non-comment line:
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 #undef TI_DUAL_MODE
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 But the LoCosto version of fflags.h (which appears here as fflags-locosto.h) is
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 much more extensive, and all of the options listed therein appear in the
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 *.{aim,sap} files and are in need of explicit enabling or disabling - as I
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 found out when I tried running ccdgen on LoCosto *.[mp]df files with the TCS211
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 version of fflags.h - it immediately failed with a bunch of errors about certain
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 options not being set one way or the other.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 ============
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 New features
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 ============
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 It appears that all of the options enabled in the LoCosto version of fflags.h
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 correspond to new features of the G23 protocol stack which do not exist at all
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 in our TCS211 reference version (leo2moko). How can we tell what features are
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 present or absent in our TCS211 version if all we have is binary libs sans
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 source? For a long time I thought the problem was unsolvable, but then I found
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 the answer in an obscure place: the "relic" pdt_*.mak files *other than* the
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 actively used pdt_2091.mak present in the source from Sotovik. The source we
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 have is "sanitized" in that the C source files for all of L1 and G23 have been
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 removed, and the makefile in pdt_2091.mak has no compilation stanzas for these
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 modules either: this generated makefile is set up to take the corresponding
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 binary-only libs as "sources". However, the other (unused) pdt_*.mak files
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 have been built (back in TI's development environment, presumably) in the "full
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 source present" configuration, and list not only the names and paths for all of
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 the deleted source files, but also their complete compilation lines with all -I
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 directories and -D options!
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 Looking at the latter compilation lines, one can see that none of the options
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 related to GSM REL99 or TI's new "multiband" stuff (seen both in fflags.h and
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 throughout the L1 and G23 sources we are back-porting from the LoCosto "peek"
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 find) are present at all in our TCS211/leo2moko reference version.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 ===============================
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 Approach chosen for FreeCalypso
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 ===============================
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 I have not yet figured out whether the new apparently-high-level GSM PS features
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 found in the LoCosto version we are working with actually depend on some LoCosto
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 hardware or DSP ROM code feature not present on the Calypso, or if they can be
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 back-ported to the Calypso just fine. I also currently have very little
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 understanding as to their merit, i.e., practical value or usefulness for a GSM
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 cellphone end user.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 The approach I'm taking for the initial version is to recreate the TCS211
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 configuration that already works on the Neo Freerunner in the form of leo2moko
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 as closely as possible, and that means setting all of the newer options to the
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 disabled state. Or at least that is the approach I am following until and
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 unless I run into some problem with it; if and when the latter happens, I'll
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 re-evaluate my course.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 However, simply using the set of cdginc files from TCS211 (or even regenerating
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 them from the TCS211 versions of *.[mp]df with the new ccdgen.exe to get mtx
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 tables in the format expected by our version of CCD source) with the G23
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 protocol stack C sources from the LoCosto version will likely lead to problems,
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 or least more hassle than it's worth, hence I decided to bite the bullet and
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 use the *.{aim,sap} and *.[mp]df files from LoCosto.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 Using the LoCosto versions of *.[mp]df, I ran ccdgen.exe (version 2.5.5A, set
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 to generate mtx tables in the new format) with two different fflags.h
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 configurations: "locosto" (unchanged from the "peek" find) and "conservative".
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 The latter is a configuration in which every existing option is set to disabled:
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 I took fflags-locosto.h and changed every #define to #undef.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 The symlink is currently set to compile the GSM fw using the "conservative"
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 version of cdginc headers. As I said above, I'll proceed with this
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 configuration until and unless I hit a problem, and then re-evaluate this
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 course if need be.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 =====================
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 ccdgen binary problem
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 =====================
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 We only have a ccdgen.exe binary, but no source. The Winblows binary in
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 question happens to run fine under Wine, at least on my Slackware machine, but
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 needless to say, asking every FreeCalypso user who wishes to compile her own
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 GSM fw from source to run a sans-source Weendoze binary under Wine and pray
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 that it works is not an attractive proposition. Therefore, as a workaround I
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 have checked the generated cdginc files into Hg as if they were source files.
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 Of course this workaround is not a proper solution either, but it is the best
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 we can do for the time being, until and unless someone either finds the missing
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 source for ccdgen or figures out its logic and writes a from-scratch functional
c15047b3d00d cdg3: import from freecalypso-citrine/cdg
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 replacement.