My buildfile and err messages

QNX DEVELOPERS Realtime and Embedded
1

Hello,

The script part of my buildfile is as follows:

[+script] .script = {
PHOTON_PATH=/proc/boot:/bin:/phembed/bin
LD_LIBRARY_PATH=/proc/boot:/lib:/dll:/phembed/lib:/usr/lib

DL_DEBUG=1

 display_msg Welcome to QNX on a PC-compatible BIOS system. You've got it !

 devc-con -e &
 reopen /dev/con1

 slogger -vv &	                                
 
 Photon &
 waitfor /dev/photon 10
 phfontFF -d /phembed/font_repository -c 20K -j -s 50K -F 10 -S 50 &     
 waitfor /dev/phfont 10

 io-graphics -g800x600x16 -dldevg-svga.so -I0 -d0x1039,0x6325 &

pwm &

phcalc -x100 -y100 &
phcalc -x300 -y100 &

	 # Start the main shell
 [+session] esh  &

}

[type=link] /dev/console=/dev/con1
[type=link] /usr/lib/ldqnx.so.2=/proc/boot/libc.so
[type=link] /usr/lib/libc.so.1=/proc/boot/libc.so
[perms=+r,+x]
libc.so

Comment “DL_DEBUG=1”, it boots with printing as follow:

add 0 10
add 10 7
add 17 7
add 24 7
add 31 7
add 38 7
add 45 7
add 52 7
add 59 7
add 66 7
add 73 5
Unknown symbol: __iob
devg-svga.so: dlopen: No such process
Failed to get required draw funcs
add 78 14
Home not set
#Ap: Unable to locate Photon
Ap: Unable to locate Photon

It seems no bins, libs missed, I don’t know how to get rid of the err messages.
Please help.

Peter

2

I think you have an out of date devg-svga.so - __iob is a 6.0 symbol, which is no longer present in 6.1 and later versions of qnx.

3

I’m using RTP 6.1.

Another, why /dev/phfont disappears after I add"io-graphic"line into the script part ?

4

why do you have /usr/lib/libc.so.1 as a link? 6.1 uses libc.so.2

also, SOMETHING is a 6.0 binary if it’s trying to use __iob

5

I remember something required libc.so.1 when it was booting, therefore, I use libc.so.1. I will try libc.so.2 again to see what’s to be on Monday, since weekend now. Your replies are helpful, I’ll give you the printings as quick as possable. Thanks. cburgess.

Peter

6

anything that needs libc.so.1 is a 6.0 binary, and you will need to include the libc.so.1 explicity in your buildfile (as well as libc.so.2) if you really need to use it.

7

Thanks to cburgess,

I modify the line"[type=link] /usr/lib/libc.so.1=/proc/boot/libc.so" to be “…libc.so.2…”,
the err “Unknown symbol: __iob” is removed when it boots.

Unfortunetly, I keep got err messages as follow:

add 0 10
add 17 7
add 24 7
add 31 7
add 38 7
add 45 7
add 52 7
add 59 7
devg-svga.so: dlopen: No such file or directory #Note: not “No such process”
Failed to get required draw funcs
add 66 14
Home not set.
#Ap: Unable to locate Photon
Ap: Unable to locate Photon

“devg-svga.so” is in /phembed/lib, why proc can not find “devg-svga.so” as others link well ?
I don’t know why /dev/phfont disappears, once the line"io-graphic" added into the script ?
phfontFF has a cut_down font_repository guided by the Helps, does it matter ?

Please help.

Peter

8

I would set the DL_DEBUG=1 again, this should show you some more detail.

9

But there are huge messages rolling, I’m afraid I can’t view the message I need.
How do you handle that ?

10

You could try explicitly setting the path to devg-vga.so, ie -dl/phembed/lib/devg-vga.so

11

Hi cburgess,

Ahead of time I had tried setting “-dl/phembed/lib/devg-svga.so”, but it
not work.

I see on my host, “devg-svga.so” is at /lib/dll and runtime linker
magically knows to find it. I think there were some environment settings, e.g., “…PATH=…” to manage it. What do you think ?

If I failed to embed Photon, I had to try the ugly way, those are, intalling
whole RTP on disk and only running specific phAB program on an mini PC
compatible board.

I think there should have some buildfile samples of embed Photon on PC system, the common desktop system in this world, but I can’t find them.
Anyway, I’ll keep look the way.

best regards,

Peter