[Buildroot] first things first for a newbie

[Buildroot] first things first for a newbie

[MERCADIER Johann]

Hello everybody,
  I am newbie in the embedded computer world. I first start with Buildroot
as it seems to be more "simple" and straight forward while having to deal
with just few configs and cards.
  But! nothing seems to way it should and I feel pretty annoyed by this as
I cannot find any relevant help on the internet or through misc. books.
Most of the time what I found is tutorial where everything seems to work
fine.
  So my first question is why Buildroot has no Forum or a good developped
FAQ? I don't really understand why it so great to work with mailing list?
If I have to I will do it this way  (o_-)

  My second question is more technical and is related to PandaBoard. I
finally decided to by one for misc purposes. To build everything I need I
got first Buildroot 2011.11

   I use the following:
     BR2_DEFAULT_KERNEL_HEADERS="3.0.4"
     BR2_UCLIBC_VERSION_STRING="0.9.32"
     BR2_BINUTILS_VERSION="2.21.1"
     BR2_TOOLCHAIN_BUILDROOT=y
     BR2_cortex_a9=y
     BR2_ARM_TYPE="ARM_CORTEXA9"
     BR2_ARM_EABI=y
     BR2_ARCH="arm"
     BR2_ENDIAN="LITTLE"
     BR2_GCC_TARGET_TUNE="cortex-a9"
     BR2_GCC_TARGET_ARCH="armv7-a"
     BR2_GCC_TARGET_ABI="aapcs-linux"
     BR2_arm=y

  When I try to build the TC it doesn't work well and I get an issue with
'gettext' while I've got everything on my host computer. I then remove all
related part to gettext as i18n stuff and WCHAR then I got a TC. Then I do
again a 'make menuconfig' add the locale and do a 'time make V=1' I got a
TC whith the locale. strange behaviour, probably some dependencies and jobs
to be done in a given order?
  On the next stage I try to go further  configuring the uClibc, busybox,
and file support everything working fine, then I got such a kind of error
if I try to add GDB for the target, host, and server part
"
/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:22:29:
error: expected ')' before 'ucs'
/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:72:21:
error: expected ')' before 'ucs'
/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:139:28:
error: expected ';', ',' or ')' before '*' token
/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:161:32:
error: expected ')' before 'ucs'
/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:230:32:
error: expected ';', ',' or ')' before '*' token
make[3]: *** [wcwidth.o] Error 1
make[2]: *** [all-readline] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [all] Error 2
make: ***
[/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/build/gdb-7.3.1-target/gdb/gdb]
Error 2
"
 I don't know what to look after, should I have a look into the 'wcwidth.c'
program file? Could it be wrong? or it come from some other part.

Any help is welcome ;o)

bye


-- 
Cordialement.

___Johann MERCADIER___

:(){ :|:& };:
"I am the Unknown lead by the Unknowing.
I have done so much with so little for so long
that I am now qualified to do anything with nothing."
HOOSEEK (http://www.hooseek.com/) 1?moteur de recherche solidaire!
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[Buildroot] first things first for a newbie

[Yegor Yefremov]

On Sat, Jan 28, 2012 at 8:32 PM, MERCADIER Johann
<johann.mercadier@imerir.com> wrote:
> Hello everybody,
> ??I am newbie in the embedded computer world. I first start with Buildroot
> as it seems to be more "simple" and straight forward while having to deal
> with just few configs and cards.
> ??But! nothing seems to way it should and I feel pretty annoyed by this as I
> cannot find any relevant help on the internet or through misc. books. Most
> of the time what I found is tutorial where everything seems to work fine.
> ??So my first question is why Buildroot has no Forum or a good developped
> FAQ? I don't really understand why it so great to work with mailing list? If
> I have to I will do it this way ?(o_-)
>
> ??My second question is more technical and is related to PandaBoard. I
> finally decided to by one for misc purposes. To build everything I need I
> got first Buildroot 2011.11
>
> ?? I use the following:
> ?? ? BR2_DEFAULT_KERNEL_HEADERS="3.0.4"
> ?? ? BR2_UCLIBC_VERSION_STRING="0.9.32"
> ?? ? BR2_BINUTILS_VERSION="2.21.1"
> ?? ??BR2_TOOLCHAIN_BUILDROOT=y
> ?? ??BR2_cortex_a9=y
> ?? ? BR2_ARM_TYPE="ARM_CORTEXA9"
> ?? ? BR2_ARM_EABI=y
> ?? ? BR2_ARCH="arm"
> ?? ? BR2_ENDIAN="LITTLE"
> ?? ? BR2_GCC_TARGET_TUNE="cortex-a9"
> ?? ? BR2_GCC_TARGET_ARCH="armv7-a"
> ?? ? BR2_GCC_TARGET_ABI="aapcs-linux"
> ?? ? BR2_arm=y
>
> ??When I try to build the TC it doesn't work well and I get an issue with
> 'gettext' while I've got everything on my host computer. I then remove all
> related part to gettext as i18n stuff and WCHAR then I got a TC. Then I do
> again a 'make menuconfig' add the locale and do a 'time make V=1' I got a TC
> whith the locale. strange behaviour, probably some dependencies and jobs to
> be done in a given order?
> ??On the next stage I try to go further ?configuring the uClibc, busybox,
> and file support everything working fine, then I got such a kind of error if
> I try to add GDB for the target, host, and server part
> "
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:22:29:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:72:21:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:139:28:
> error: expected ';', ',' or ')' before '*' token
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:161:32:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:230:32:
> error: expected ';', ',' or ')' before '*' token
> make[3]: *** [wcwidth.o] Error 1
> make[2]: *** [all-readline] Error 2
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [all] Error 2
> make: ***
> [/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/build/gdb-7.3.1-target/gdb/gdb]
> Error 2
> "
> ?I don't know what to look after, should I have a look into the 'wcwidth.c'
> program file? Could it be wrong? or it come from some other part.

Have you tried one of the CodeSourcery toolchains? It will save a lot
of build time.

Yegor

[Buildroot] first things first for a newbie

[MERCADIER Johann]

Hi Yegor,
  I've already tested CS and EDLK ToolChain. For "normal" use they are good
enough and work well. But they are 2 thinks I don't like:
    i)    We are dependant of a company (i.e DENX, MENTOR GRAPHIC...) they
do what they like...
    ii)   When you want to use MPFR/OMP or some other features I think is
better to know how to build his own personnal stuff.

   That's why I try to learn this way. And it's a good training I guess
before going further :o))

bye

Johann

On 28 January 2012 19:39, Yegor Yefremov <yegorslists@googlemail.com> wrote:

> On Sat, Jan 28, 2012 at 8:32 PM, MERCADIER Johann
> <johann.mercadier@imerir.com> wrote:
> > Hello everybody,
> >   I am newbie in the embedded computer world. I first start with
> Buildroot
> > as it seems to be more "simple" and straight forward while having to deal
> > with just few configs and cards.
> >   But! nothing seems to way it should and I feel pretty annoyed by this
> as I
> > cannot find any relevant help on the internet or through misc. books.
> Most
> > of the time what I found is tutorial where everything seems to work fine.
> >   So my first question is why Buildroot has no Forum or a good developped
> > FAQ? I don't really understand why it so great to work with mailing
> list? If
> > I have to I will do it this way  (o_-)
> >
> >   My second question is more technical and is related to PandaBoard. I
> > finally decided to by one for misc purposes. To build everything I need I
> > got first Buildroot 2011.11
> >
> >    I use the following:
> >      BR2_DEFAULT_KERNEL_HEADERS="3.0.4"
> >      BR2_UCLIBC_VERSION_STRING="0.9.32"
> >      BR2_BINUTILS_VERSION="2.21.1"
> >      BR2_TOOLCHAIN_BUILDROOT=y
> >      BR2_cortex_a9=y
> >      BR2_ARM_TYPE="ARM_CORTEXA9"
> >      BR2_ARM_EABI=y
> >      BR2_ARCH="arm"
> >      BR2_ENDIAN="LITTLE"
> >      BR2_GCC_TARGET_TUNE="cortex-a9"
> >      BR2_GCC_TARGET_ARCH="armv7-a"
> >      BR2_GCC_TARGET_ABI="aapcs-linux"
> >      BR2_arm=y
> >
> >   When I try to build the TC it doesn't work well and I get an issue with
> > 'gettext' while I've got everything on my host computer. I then remove
> all
> > related part to gettext as i18n stuff and WCHAR then I got a TC. Then I
> do
> > again a 'make menuconfig' add the locale and do a 'time make V=1' I got
> a TC
> > whith the locale. strange behaviour, probably some dependencies and jobs
> to
> > be done in a given order?
> >   On the next stage I try to go further  configuring the uClibc, busybox,
> > and file support everything working fine, then I got such a kind of
> error if
> > I try to add GDB for the target, host, and server part
> > "
> >
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:22:29:
> > error: expected ')' before 'ucs'
> >
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:72:21:
> > error: expected ')' before 'ucs'
> >
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:139:28:
> > error: expected ';', ',' or ')' before '*' token
> >
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:161:32:
> > error: expected ')' before 'ucs'
> >
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:230:32:
> > error: expected ';', ',' or ')' before '*' token
> > make[3]: *** [wcwidth.o] Error 1
> > make[2]: *** [all-readline] Error 2
> > make[2]: *** Waiting for unfinished jobs....
> > make[1]: *** [all] Error 2
> > make: ***
> >
> [/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/build/gdb-7.3.1-target/gdb/gdb]
> > Error 2
> > "
> >  I don't know what to look after, should I have a look into the
> 'wcwidth.c'
> > program file? Could it be wrong? or it come from some other part.
>
> Have you tried one of the CodeSourcery toolchains? It will save a lot
> of build time.
>
> Yegor
>



-- 
Cordialement.

___Johann MERCADIER___

:(){ :|:& };:
"I am the Unknown lead by the Unknowing.
I have done so much with so little for so long
that I am now qualified to do anything with nothing."
HOOSEEK (http://www.hooseek.com/) 1?moteur de recherche solidaire!
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[Buildroot] first things first for a newbie

[Thomas Petazzoni]

Hello,

Le Sat, 28 Jan 2012 19:32:50 +0000,
MERCADIER Johann <johann.mercadier@imerir.com> a ?crit :

>   But! nothing seems to way it should and I feel pretty annoyed by
> this as I cannot find any relevant help on the internet or through
> misc. books. Most of the time what I found is tutorial where
> everything seems to work fine.
>   So my first question is why Buildroot has no Forum or a good
> developped FAQ? I don't really understand why it so great to work
> with mailing list? If I have to I will do it this way  (o_-)

We have :

 * Some documentation, available in docs/manual/, and that you can
   generate using "make manual" ;

 * This mailing-list, which is the traditional way of providing support
   in the free software / open-source world ;

 * The #buildroot IRC channel on Freenode

>   When I try to build the TC it doesn't work well and I get an issue

What is "TC" ?

> with 'gettext' while I've got everything on my host computer. I then

Which issue ?

> remove all related part to gettext as i18n stuff and WCHAR then I got
> a TC. Then I do again a 'make menuconfig' add the locale and do a
> 'time make V=1' I got a TC whith the locale. strange behaviour,
> probably some dependencies and jobs to be done in a given order?

When you change toolchain options, you need to do a full rebuild, i.e
'make clean' followed by 'make'. Buildroot does not try to be smart,
and therefore does not rebuild anything unless you tell him to do so.

>   On the next stage I try to go further  configuring the uClibc,
> busybox, and file support everything working fine, then I got such a
> kind of error if I try to add GDB for the target, host, and server
> part "
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:22:29:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:72:21:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:139:28:
> error: expected ';', ',' or ')' before '*' token
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:161:32:
> error: expected ')' before 'ucs'
> /media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/toolchain/gdb-7.3.1/readline/support/wcwidth.c:230:32:
> error: expected ';', ',' or ')' before '*' token
> make[3]: *** [wcwidth.o] Error 1
> make[2]: *** [all-readline] Error 2
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [all] Error 2
> make: ***
> [/media/hddPANDAdev/ARMSTUFF/LTiB/BR/buildroot-2011.11/output/build/gdb-7.3.1-target/gdb/gdb]
> Error 2

Please post the Buildroot .config file that allows you to produce this
build error, and we will try to reproduce it.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] first things first for a newbie

[Thomas Petazzoni]

Hello,

[ Please don't reply to me directly: keep the list in Cc ]

Le Sun, 29 Jan 2012 13:34:03 +0000,
MERCADIER Johann <johann.mercadier@imerir.com> a ?crit :

>    I just registered into IRC channel as JoM. The Doc/manual does'nt
> answer to my problem they look much more as guidelines. By the way I
> got the following problem while creating the manual:
> "
> $ make manual
> Generating HTML manual...
> /bin/bash: a2x: command not found
> make: *** [output/docs/manual/manual.html] Error 127
> "
> if you already have faced out such a mistake?

Could you read the error message? It says:

  a2x: command not found

So it means that the a2x command is not available on your system, and
that you must install it. You have to install the 'asciidoc' package,
which contains the necessary utilities to compile the Buildroot
documentation.

> TC stand for Tool Chain

Ok. This is not a very common acronym.

>    Sorry about that my mistake was to have created a HOST_DIR called
> 'target'... Please say nothing...So I modify that to call it
> 'workdone' til know everything work fine all options for GDB have
> been compiled out.
> 
>    Will proceed with the creation of a defconfig for the pandaboard.
> 
>    I noticed that no config file does exist for this board does it
> mean that every person who want to use it has to do those steps
> before using it? or it is mainly dependant of the buildroot version?

A Pandaboard defconfig file was submitted some time ago, but hasn't
been integrated into Buildroot (due to lack of time of the maintainer
at the moment), but it would definitely be great to have one. You can
search in the mailing list archives for the patch adding the Pandaboard
defconfig file.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] first things first for a newbie

[MERCADIER Johann]

>
> [ Please don't reply to me directly: keep the list in Cc ]
>

 I am not really used to with mailing-list is the first time I use one.
 Ok! I will pay attention by now!

So it means that the a2x command is not available on your system, and

> that you must install it. You have to install the 'asciidoc' package,
> which contains the necessary utilities to compile the Buildroot
> documentation.
>

Thanks, I knew that I had to install a new program but I couldn't manage to
find it out with an 'apt-cache search a2x'. it is installed now.

  I will search for this patch.

Regards.

-- 
Cordialement.

___Johann MERCADIER___

:(){ :|:& };:
"I am the Unknown lead by the Unknowing.
I have done so much with so little for so long
that I am now qualified to do anything with nothing."
HOOSEEK (http://www.hooseek.com/) 1?moteur de recherche solidaire!
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