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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 125 | decky | 1 | \chapter{Building HelenOS} |
| 150 | palkovsky | 2 | \section{Requirements} |
| 3 | To build HelenOS, the following build tools must be installed: |
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| 4 | \begin{itemize} |
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| 5 | \item GCC 4.1.1 + binutils 2.16.1 cross compiler environment for target platform |
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| 6 | \item python 2.3 or higher |
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| 7 | \item GNU make |
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| 8 | \item mkisofs |
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| 9 | \end{itemize} |
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| 10 | The GNU build environment is best downloaded, compiled and installed |
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| 11 | automatically using the shell scripts located in the |
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| 12 | {\em kernel/contrib/toolchain} directory. |
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| 125 | decky | 13 | |
| 150 | palkovsky | 14 | \section{Building} |
| 15 | HelenOS features a user friendly configuration system. Once |
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| 16 | a {\em make} command is run from the {\em boot/} directory, a |
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| 17 | {\em dialog} driven application is started and the developer is asked several |
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| 18 | questions regarding build configuration parameters. The answers are saved |
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| 19 | in the file {\em Makefile.config} in the boot/, kernel/ and uspace/ |
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| 20 | directories and are automatically used for each subsequent build. |
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| 21 | |||
| 22 | To change the parameters, the user should change to the particular subsystem |
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| 23 | directory and type {\em make config}. When the build configuration parameter |
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| 24 | are changed, the whole subsystem should be completely rebuilt. The |
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| 25 | configuration system offers user to do this automatically. |