Saturday, September 20, 2008

TianoCore and the Python-based Build Process, Part 2

So here's the "sequel" to Part One. This time I'm trying to actually build a Firmware Volume with the Python-based tools.

Prerequisites for

The core of the tools is, a Python script which invokes the tools in order to build a Firmware Volume (FV). On FreeBSD, cannot be run until the following requirements are met:
  • SQLite3 for Python, which can be installed through the databases/py-sqlite3 port.
  • The Python module for ANTLR, a parser generator.
  • Installing the module mentioned above requires EasyInstall, or rather: I don't know how it can be done otherwise.
Because I could not find a port for EasyInstall, I did this to install the script on FreeBSD:
$ fetch
$ chmod +x
$ ./
Note that this isn't the whole truth as the path to the interpreter in the script, i.e. the first line aka "shebang", must be adjusted to /usr/local/bin/python before the script can be executed.
After that, the easy_install command is available and the ANTLR module can be installed by running this:
$ eazy_install \


In theory, running and thus building a Firmware Volume should be as easy as this:
$ cd path/to/edk2
$ export PYTHONPATH=/path/to/basetools/Source/Python
$ . BaseTools
$ python $PYTHONPATH/build/
Unfortunately, the last step initially aborted with this error:
 : error 5000: Please execute /home/phs/sandbox/basetools/Bin/FreeBSD-i386:/sbin: \
/bin:/usr/sbin:/usr/bin:/usr/games:/usr/local/sbin:/usr/local/bin: \
/home/phs/bin/edksetup.bat to set /home/phs/sandbox/basetools/Bin/Freebsd7 in \
environment variable: PATH!

- Failed -
After some try'n'error time, I think that the above error is caused by user error: I had previously copied the compiled C programs from Source/C/bin to bin/FreeBSD-i386 (paths relative to /path/to/basetools). After removing bin/FreeBSD-i386, I created a link to BinWrappers/PosixLike at the same location:
$ cd /path/to/basetools
$ ln -s BinWrappers/PosixLike Bin/FreeBSD-i386
I then re-ran (see above) and it produced some output that didn't look like errors:
00:44:09, Sep.21 2008 [FreeBSD-7.1-PRERELEASE-i386-32bit-ELF]

WORKSPACE                = /usr/home/phs/sandbox/edk2
EDK_SOURCE               = /usr/home/phs/sandbox/edk2/EdkCompatibilityPkg
EFI_SOURCE               = /usr/home/phs/sandbox/edk2/EdkCompatibilityPkg
EDK_TOOLS_PATH           = /home/phs/sandbox/basetools

TARGET_ARCH              = IA32
TARGET                   = DEBUG

Active Platform          = UnixPkg/UnixPkg.dsc
Flash Image Definition   = UnixPkg/UnixPkg.fdf

Processing meta-data . . . . . . .
Unfortunately, though, right after the dots, an error occured:
UnixPkg/UnixPkg.dsc(...): error 4000: Instance of library class [NetLib] is not found
        in [MdeModulePkg/Universal/Network/ArpDxe/ArpDxe.inf] [IA32]
        consumed by module [MdeModulePkg/Universal/Network/ArpDxe/ArpDxe.inf]

- Failed -
00:44:17, Sep.21 2008 [00:08]

Fixing the UnixPkg

The UnixPkg part of the EDK II seems to be broken as the error above indicates a dependency error between modules which is caused by an incorrect platform definition file (*.dsc). Applying this patch fixes the problem.

The patch ensures that all dependencies are met, but the build process still fails with this error:
Processing meta-data . . . . . . . . done!
make: don't know how to make pbuild. Stop

 : error 7000: Failed to execute command
        make pbuild [/usr/home/phs/sandbox/edk2/Build/Unix/DEBUG_ELFGCC/IA32/MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate]

Waiting for all build threads exit...
make: don't know how to make pbuild. Stop

 : error 7000: Failed to execute command
        make pbuild [/usr/home/phs/sandbox/edk2/Build/Unix/DEBUG_ELFGCC/IA32/MdePkg/Library/BaseLib/BaseLib]

 : error F002: Failed to build module
        MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf [IA32, ELFGCC, DEBUG]

- Failed -
01:01:43, Sep.21 2008 [00:09]
Oh, well, to be continued...

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