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cc_pei.c compiles
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Tue, 30 Sep 2014 02:14:08 +0000
parents aad742029813
children 4fa939eada22
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aad742029813 doc/Compiling: everything except gsm-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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1 There are 3 parts to the complete FreeCalypso software suite which are built
aad742029813 doc/Compiling: everything except gsm-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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2 independently of each other:
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3
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4 * The tools that run on a GNU/Linux PC or other host system are the most
aad742029813 doc/Compiling: everything except gsm-fw
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5 straightforward: there is a top level Makefile (named Makefile.hosttools if
aad742029813 doc/Compiling: everything except gsm-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6 you looking at a development source snapshot, will be renamed to just
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7 Makefile in packaged releases of the host tools) that coordinates building
aad742029813 doc/Compiling: everything except gsm-fw
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8 and installing all of them.
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9
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10 * The gsm-fw tree, which will eventually become our main GSM firmware, needs to
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11 be built with a GNU cross-compiler toolchain for ARM7. This firmware can be
aad742029813 doc/Compiling: everything except gsm-fw
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12 built for several different target devices and with different feature
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13 configurations, hence there is no singular build for it - it's more like the
aad742029813 doc/Compiling: everything except gsm-fw
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14 Linux kernel in terms of its build configuration management.
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15
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16 * We also have a few utilities which need to be compiled to run on Calypso
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17 targets, but which are not part of gsm-fw; they are gathered in the
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18 target-utils tree. They are built with the same GNU toolchain for ARM7 as
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19 gsm-fw, but don't have any fancy configuration system.
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20
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21 Building and installing FreeCalypso host tools
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22 ==============================================
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23
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24 If you are working with a packaged FC host tools release, just run 'make', then
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25 'make install' as root. If you are working with a development source snapshot,
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26 do 'make -f Makefile.hosttools' instead.
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27
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28 The "standard" install directories are /usr/local/bin for binaries and
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29 /usr/local/share/freecalypso for helper files. If you need to change these
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30 paths to something else, you'll need to edit a bunch of individual component
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31 Makefiles, and possibly also some source files like loadtools/defpath.c -
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32 sorry, FreeCalypso is not GNU and does not use autotools.
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33
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34 Building and installing the ARM7 toolchain
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35 ==========================================
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36
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37 The current "official" GNU ARM toolchain for FreeCalypso consists of
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38 binutils-2.21.1, gcc-4.5.4 and newlib-2.0.0 with a specific set of patches and
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39 build configuration options. Build it as follows:
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40
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41 1. Download these 3 source tarballs for the standard GNU+newlib components:
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42
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43 binutils-2.21.1a.tar.bz2
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44 gcc-core-4.5.4.tar.bz2
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45 newlib-2.0.0.tar.gz
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46
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47 2. Run the build+install.sh script in the toolchain directory. Read the
aad742029813 doc/Compiling: everything except gsm-fw
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48 comments in the script first for the usage instructions.
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49
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50 The toolchain thus built will need to be in your PATH before you can compile
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51 gsm-fw or target-utils.
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52
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53 Please note: the toolchain that is prescribed for FreeCalypso as above is
aad742029813 doc/Compiling: everything except gsm-fw
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54 *believed* to be equivalent to the one used by OsmocomBB, but there are no
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55 guarantees. Use any other toolchain at your own risk.
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56
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57 Compiling target-utils
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58 ======================
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59
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60 Running 'make' in the target-utils tree with the ARM7 toolchain present in your
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61 PATH will result in compalstage and loadagent being built; these are the two
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62 components needed in order to use FreeCalypso loadtools. Run 'make install' to
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63 install these target binaries in /usr/local/share/freecalypso, which is where
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64 loadtools will look for them.
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65
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66 Run 'make all' in target-utils to build some other components that aren't
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67 really needed.