This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

Appendix: Sample Buildfile

The following buildfile shows you how to add the adaptive partitioning module to procnto. It also includes commented-out commands to create partitions, start a program in the partition, and set the security level.

In a real buildfile, you can't use a backslash (\) to break a long line into shorter pieces, but we've done that here, just to make the buildfile easier to read.

#
# The build file for QNX Neutrino booting on a PC
#
[virtual=x86,bios +compress] boot = {
    # Reserve 64k of video memory to handle multiple video cards 
    startup-bios -s64k

    # PATH is the *safe* path for executables (confstr(_CS_PATH...))
    # LD_LIBRARY_PATH is the *safe* path for libraries
    # (confstr(_CS_LIBPATH))
    #    i.e. This is the path searched for libs in setuid/setgid
    #  executables.

    # The module=aps enables the adaptive partitioning scheduler
    [module=aps] PATH=/proc/boot:/bin:/usr/bin:/opt/bin \
LD_LIBRARY_PATH=/proc/boot:/lib:/usr/lib:/lib/dll:/opt/lib \
procnto-instr
}

[+script] startup-script = {
    # To save memory make everyone use the libc in the boot image!
    # For speed (less symbolic lookups) we point to libc.so.2 instead
    # of libc.so
    procmgr_symlink ../../proc/boot/libc.so.2 /usr/lib/ldqnx.so.2

    # Default user programs to priority 10, other scheduler (pri=10o)
    # Tell "diskboot" this is a hard disk boot (-b1)
    # Tell "diskboot" to use DMA on IDE drives (-D1)
    # Start 4 text consoles buy passing "-n4" to "devc-con" (-o)
    # By adding "-e" linux ext2 filesystem will be mounted as well.
    [pri=10o] PATH=/proc/boot diskboot -b1 -D1 -odevc-con,-n4

    # Create an adaptive partition named "Debugging" with a budget
    # of 20%:
    #sched_aps Debugging 20
    
    # Start qconn in the Debugging partition:
    #[sched_aps=Debugging]/usr/sbin/qconn

    # Use the recommended security level for the partitions:
    #aps modify -s recommended
}

# Include the current "libc.so". It will be created as a real file
# using its internal "SONAME", with "libc.so" being a symlink to it.
# The symlink will point to the last "libc.so.*" so if an earlier
# libc is needed (e.g. libc.so.1) add it before the this line.
libc.so

# Include all the files for the default filesystems
libcam.so
io-blk.so
cam-disk.so
fs-qnx4.so
fs-dos.so
fs-ext2.so
cam-cdrom.so
fs-cd.so

# These programs only need to be run once from the boot image.
# "data=uip" will waste less memory as the ram from the boot
# image will be used directly without making a copy of the data
# (i.e. as the default "data=cpy" does). When they have been
# run once, they will be unlinked from /proc/boot.
[data=copy]
seedres
pci-bios
devb-eide
devb-amd
devb-aha2
devb-aha4
devb-aha7
devb-aha8
devb-adpu320
devb-ncr8
diskboot
slogger
fesh
devc-con

A sample buildfile is installed on your system as /boot/build/qnxbasedmaaps.build when you install the Adaptive Partitioning TDK.