bluez with uclibc

bluez with uclibc

[arjun rath]

Hi,

Can somebody please tell how to cross compile bluez for arm with
uclibc library.with glib i am to cross compile but my whole
application and RFS is builded with uclibc so i need bluez with uclibc
compiled.

Thanks in advance

Regards

Arjun

Bluez with uclibc

[Julien COUVRAND]

Hi,

I am new to Bluez

Today, I need to cross compile Bluez for arm with uclibc library into Buildroot environment. 
However, I meet some dependencies between bluez-utils package and MMU deactivation due to dBus.

Do you know a way to use Bluez with uclibc library?

Thanks in advance

Regards

Julien

Re: Bluez with uclibc

[Marcel Holtmann]

Hi Julien,

> Today, I need to cross compile Bluez for arm with uclibc library into Buildroot environment. 
> However, I meet some dependencies between bluez-utils package and MMU deactivation due to dBus.
> 
> Do you know a way to use Bluez with uclibc library?

you need to be more specific. I know from projects successfully building BlueZ with uclibc in the past, but I am not doing such thing on a daily basis. So things might have changed. What are the logs or errors you see?

Regards

Marcel

RE: Bluez with uclibc

[Julien COUVRAND]

Hi Marcel,

Sure.
As soon as i compile Buildroot deactivating MMU dependencies into Config.in=
 from bluez-utils package such as:

--
config BR2_PACKAGE_BLUEZ_UTILS
	bool "bluez-utils"
	depends on !BR2_avr32
	depends on BR2_USE_WCHAR # libglib2
	depends on BR2_TOOLCHAIN_HAS_THREADS # dbus, alsa-lib
	# depends on BR2_USE_MMU # dbus
	select BR2_PACKAGE_DBUS
	select BR2_PACKAGE_LIBGLIB2
	help
	  bluez utils
--

I have got following compilation errors:

--
../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-sysdeps-util-unix=
.o): In function `_dbus_become_daemon':
dbus-sysdeps-util-unix.c:(.text+0x530): undefined reference to `fork'
../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-spawn.o): In func=
tion `_dbus_spawn_async_with_babysitter':
dbus-spawn.c:(.text+0xe38): undefined reference to `fork'
dbus-spawn.c:(.text+0xea0): undefined reference to `fork'
collect2: error: ld returned 1 exit status
make[3]: *** [dbus-daemon] Error 1
make[3]: *** Waiting for unfinished jobs....
../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-sysdeps-util-unix=
.o): In function `_dbus_become_daemon':
dbus-sysdeps-util-unix.c:(.text+0x530): undefined reference to `fork'
collect2: error: ld returned 1 exit status
make[3]: *** [dbus-daemon-launch-helper] Error 1
--

So, currently, using uclibc for bluez, without MMU activation, I can't comp=
ile Buildroot due dBus and the "fork".


Julien


Julien COUVRAND
MOPI - 8540 SWPF Object Leader
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-----Original Message-----
From: Marcel Holtmann [mailto:marcel@holtmann.org]=20
Sent: lundi 8 juillet 2013 21:03
To: Julien COUVRAND
Cc: linux-bluetooth@vger.kernel.org
Subject: Re: Bluez with uclibc

Hi Julien,

> Today, I need to cross compile Bluez for arm with uclibc library into Bui=
ldroot environment.=20
> However, I meet some dependencies between bluez-utils package and MMU dea=
ctivation due to dBus.
>=20
> Do you know a way to use Bluez with uclibc library?

you need to be more specific. I know from projects successfully building Bl=
ueZ with uclibc in the past, but I am not doing such thing on a daily basis=
. So things might have changed. What are the logs or errors you see?

Regards

Marcel

Re: Bluez with uclibc

[Marcel Holtmann]

Hi Julien,

please do not top post on this mailing list.

> Sure.
> As soon as i compile Buildroot deactivating MMU dependencies into Config.in from bluez-utils package such as:
> 
> --
> config BR2_PACKAGE_BLUEZ_UTILS
> 	bool "bluez-utils"
> 	depends on !BR2_avr32
> 	depends on BR2_USE_WCHAR # libglib2
> 	depends on BR2_TOOLCHAIN_HAS_THREADS # dbus, alsa-lib
> 	# depends on BR2_USE_MMU # dbus
> 	select BR2_PACKAGE_DBUS
> 	select BR2_PACKAGE_LIBGLIB2
> 	help
> 	  bluez utils
> --
> 
> I have got following compilation errors:
> 
> --
> ../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-sysdeps-util-unix.o): In function `_dbus_become_daemon':
> dbus-sysdeps-util-unix.c:(.text+0x530): undefined reference to `fork'
> ../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-spawn.o): In function `_dbus_spawn_async_with_babysitter':
> dbus-spawn.c:(.text+0xe38): undefined reference to `fork'
> dbus-spawn.c:(.text+0xea0): undefined reference to `fork'
> collect2: error: ld returned 1 exit status
> make[3]: *** [dbus-daemon] Error 1
> make[3]: *** Waiting for unfinished jobs....
> ../dbus/.libs/libdbus-internal.a(libdbus_internal_la-dbus-sysdeps-util-unix.o): In function `_dbus_become_daemon':
> dbus-sysdeps-util-unix.c:(.text+0x530): undefined reference to `fork'
> collect2: error: ld returned 1 exit status
> make[3]: *** [dbus-daemon-launch-helper] Error 1
> --
> 
> So, currently, using uclibc for bluez, without MMU activation, I can't compile Buildroot due dBus and the "fork".

you might want to check with the D-Bus people since this is not a BlueZ issue.

Regards

Marcel