[Bluez-devel] learning the basics

[Bluez-devel] learning the basics

[soraberri]

Hi!
This morning, in an attempt of auto-encourage myself, I thougth I was 
going to be able to compile the l2test application by my own, only from 
the l2test.c source and having all the required libraries properly 
installed... Of course I couldn't (crying). My fatal sin is that I'm 
learning programming, communications, bluetooth and Linux, all the same 
time, and all the same way (you can see that way). I hope don't bother 
you trying to justify myself of asking the following question:

¿Could you give me some ligth in the points to consider while compiling 
a user-made source like the l2test application? I want to do this way 
only for learning pourposes, in order to glimpse a bit the whole picture.
I'm getting errors of type "undefined references" like the following

linking l2captest (libtool)
linking l2captest (gcc)
/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:222: 
undefined reference to `strtoba'
l2captest.o(.text+0x680):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:222: 
undefined reference to `baswap'
/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:328: 
undefined reference to `baswap'
l2captest.o(.text+0xb54):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:329: 
undefined reference to `batostr'
/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:643: 
undefined reference to `hci_devba'
l2captest.o(.text+0x14df):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:645: 
undefined reference to `str2ba'
*** Exited with status: 2 ***

Theese functions are defined in bluetooth.h as you know. I thougth I 
should link with the -L /lib/modules/2.6.9-1.667/kernel/net/bluetooth/ 
flag, but there is the same output.

So this is the point.

Thanks for your advices



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel

Re: [Bluez-devel] learning the basics

[Marcel Holtmann]

Hi,

> This morning, in an attempt of auto-encourage myself, I thougth I was=20
> going to be able to compile the l2test application by my own, only from=
=20
> the l2test.c source and having all the required libraries properly=20
> installed... Of course I couldn't (crying). My fatal sin is that I'm=20
> learning programming, communications, bluetooth and Linux, all the same=
=20
> time, and all the same way (you can see that way). I hope don't bother=20
> you trying to justify myself of asking the following question:
>=20
> =BFCould you give me some ligth in the points to consider while compili=
ng=20
> a user-made source like the l2test application? I want to do this way=20
> only for learning pourposes, in order to glimpse a bit the whole pictur=
e.
> I'm getting errors of type "undefined references" like the following
>=20
> linking l2captest (libtool)
> linking l2captest (gcc)
> /home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:222:=20
> undefined reference to `strtoba'
> l2captest.o(.text+0x680):/home/soraberri/Desarrollo/estudioC/l2captest/=
src/l2captest.c:222:=20
> undefined reference to `baswap'
> /home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:328:=20
> undefined reference to `baswap'
> l2captest.o(.text+0xb54):/home/soraberri/Desarrollo/estudioC/l2captest/=
src/l2captest.c:329:=20
> undefined reference to `batostr'
> /home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:643:=20
> undefined reference to `hci_devba'
> l2captest.o(.text+0x14df):/home/soraberri/Desarrollo/estudioC/l2captest=
/src/l2captest.c:645:=20
> undefined reference to `str2ba'
> *** Exited with status: 2 ***
>=20
> Theese functions are defined in bluetooth.h as you know. I thougth I=20
> should link with the -L /lib/modules/2.6.9-1.667/kernel/net/bluetooth/=20
> flag, but there is the same output.

don't link anything against any kernel stuff from userspace. This will
never work. I don't understand why don't you use --enable-test from the
bluez-utils configure script. However what you are searching for is:

	gcc l2captest.c -o l2captest -lbluetooth

Regards

Marcel




-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel

[Bluez-devel] Re: learning the basics

[soraberri]

Marcel Holtmann wrote:
> Hi,
> 
> 
>>This morning, in an attempt of auto-encourage myself, I thougth I was 
>>going to be able to compile the l2test application by my own, only from 
>>the l2test.c source and having all the required libraries properly 
>>installed... Of course I couldn't (crying). My fatal sin is that I'm 
>>learning programming, communications, bluetooth and Linux, all the same 
>>time, and all the same way (you can see that way). I hope don't bother 
>>you trying to justify myself of asking the following question:
>>
>>¿Could you give me some ligth in the points to consider while compiling 
>>a user-made source like the l2test application? I want to do this way 
>>only for learning pourposes, in order to glimpse a bit the whole picture.
>>I'm getting errors of type "undefined references" like the following
>>
>>linking l2captest (libtool)
>>linking l2captest (gcc)
>>/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:222: 
>>undefined reference to `strtoba'
>>l2captest.o(.text+0x680):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:222: 
>>undefined reference to `baswap'
>>/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:328: 
>>undefined reference to `baswap'
>>l2captest.o(.text+0xb54):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:329: 
>>undefined reference to `batostr'
>>/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:643: 
>>undefined reference to `hci_devba'
>>l2captest.o(.text+0x14df):/home/soraberri/Desarrollo/estudioC/l2captest/src/l2captest.c:645: 
>>undefined reference to `str2ba'
>>*** Exited with status: 2 ***
>>
>>Theese functions are defined in bluetooth.h as you know. I thougth I 
>>should link with the -L /lib/modules/2.6.9-1.667/kernel/net/bluetooth/ 
>>flag, but there is the same output.
> 
> 
> don't link anything against any kernel stuff from userspace. This will
> never work. I don't understand why don't you use --enable-test from the
> bluez-utils configure script. However what you are searching for is:
> 
> 	gcc l2captest.c -o l2captest -lbluetooth
> 
> Regards
> 
> Marcel
> 
> 
> 
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now. 
> http://productguide.itmanagersjournal.com/

Hi Marcel
Yes, I appreciate very much your answer. You've solved the whole of my 
actual doubts. You said you didn't understand why I don't just use 
--enable-test from the bluez-utils configure script. Well that's easy: 
because I didn't know about the possibility. Anyway, it's helpful for me 
  in order to learn.
Thanks Marcel



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel