The sample buildfile for kernel restoration on the EDOSK7780 reference platform is as follows:
#################################################################
## START OF BUILD SCRIPT for Renesas EDOSK7780 Board
#################################################################
[image=0x88010000]
[virtual=shle/binary +compress] .bootstrap = {
startup-edosk7780 -Dscif..115200.1843200.16 -f400000000 -vv -I1
PATH=/proc/boot LD_LIBRARY_PATH=/proc/boot procnto -vvvv
}
[+script] .script = {
procmgr_symlink ../../proc/boot/libc.so.2 /usr/lib/ldqnx.so.2
display_msg Welcome to QNX Neutrino on the Renesas EDOSK-7780
devc-sersci -e -F -x -b115200 -c1843200/16 scif0 scif1 &
reopen /dev/ser1
SYSNAME=nto
TERM=qansi
[+session] PATH=:/proc/boot LD_LIBRARY_PATH=/proc/boot ksh &
}
[type=link] /dev/console=/dev/ser1
[type=link] /tmp=/dev/shmem
libc.so
[data=c]
devc-sersci
ls
ksh
pidin
###################################################################
## END OF BUILD SCRIPT
###################################################################
To build the image:
# mkifs -v edosk7780.build edosk7780.ifs
The sample output is as follows:
QNX Neutrino IPL for the EDOSK-7780 Press 'd' to download an OS image serially Press any other key to boot from flash
Press a key other than d; the output continues:
Downloading from Flash
Restore IFS searching for valid IFS in RAM...
rifs_info PADDR = 0x08008000
rifs_info ADDR = 0x88008000
INVALID IFS signature
Restore IFS failed - Reload entire IFS.
PT_LOAD RW: 0004b000 size is 000030b0
Found procnto Elf header
bootable exec data: offset 0004b000, size 000030b0
Compressed image, store data
Calculate restore info checksum
System page at phys:081d1000 user:081d1000 kern:881d1000
Starting next program at v8803c258
Welcome to QNX Neutrino on the Renesas EDOSK-7780
The board has booted; run an application:
# # ls dev proc tmp usr
Press the reset button to simulate wake-up:
# QNX Neutrino IPL for the EDOSK-7780 Press 'd' to download an OS image serially Press any other key to boot from flash
Press a key other than d. The output continues:
Downloading from Flash
Restore IFS searching for valid IFS in RAM...
rifs_info PADDR = 0x08008000
rifs_info ADDR = 0x88008000
FOUND valid IFS signature
FOUND valid RIFS signature
FOUND valid RIFS info
FOUND valid IFS signature and RIFS info in RAM.
IFS pre checksum = 0x7bbb7898 (shouldn't be 0x0)
bootable exec 0 offset: 0x0004bef8
bootable exec 0 size: 0x000030b0
Compressed image src = 0x0800a000
IFS post checksum = 0x00000000 (should be 0x0)
PT_LOAD RW: 0004b000 size is 000030b0
Found procnto Elf header
bootable exec data: offset 0004b000, size 000030b0
Compressed image, store data
Calculate restore info checksum
System page at phys:081d1000 user:081d1000 kern:881d1000
Starting next program at v8803c258
Welcome to QNX Neutrino on the Renesas EDOSK-7780
# ls
dev proc tmp usr
To disable the checksum verification on the IFS after it has been restored, modify the buildfile to:
startup-edosk7780 -Dscif..115200.1843200.16 -f400000000 -vv —I0
On subsequent boots, you will see the additional output (with debug enabled):
WARNING: Skipped image checksum verification
If you're working with uncompressed images, the buildfile looks like:
[virtual=shle/binary] .bootstrap = {
startup-edosk7780 -Dscif..115200.1843200.16 -f400000000 -vv -I1
PATH=/proc/boot LD_LIBRARY_PATH=/proc/boot procnto -vvvv
}
The sample output looks something like:
Restore IFS searching for valid IFS in RAM...
rifs_info PADDR = 0x08008000
rifs_info ADDR = 0x88008000
INVALID IFS signature
Restore IFS failed - Reload entire IFS.
PT_LOAD RW: 0004b000 size is 000030b0
Found procnto Elf header
bootable exec data: offset 0004b000, size 000030b0
Calculate restore info checksum
Press the reset button to simulate wake-up. The output continues:
Restore IFS searching for valid IFS in RAM...
rifs_info PADDR = 0x08008000
rifs_info ADDR = 0x88008000
FOUND valid IFS signature
FOUND valid RIFS signature
FOUND valid RIFS info
FOUND valid IFS signature and RIFS info in RAM.
IFS pre checksum = 0x7a82a8f2 (shouldn't be 0x0)
bootable exec 0 offset: 0x0004bef8
bootable exec 0 size: 0x000030b0
Uncompressed image paddr_src = 0x00059000
IFS post checksum = 0x00000000 (should be 0x0)
PT_LOAD RW: 0004b000 size is 000030b0
Found procnto Elf header
bootable exec data: offset 0004b000, size 000030b0
Calculate restore info checksum