systemTap 1.0 CROSS COMPILE

[naresh kamboju]

Hi Frank,


Thanks for the valuable information.
The process is going successfully.

Build  .ko on Host machine and insert the .ko with staprun on the Target.

ON HOST: stap
I have build stap on HOST Machine.
(With out any cross compilations)

#./configure --with-elfutils=elfutils/ --prefix=/usr/local/arm/cross/devel
#make
#make install
# cd testsuite
# cd buildok
# stap -a arm -B CROSS_COMPILE=/usr/local/arm/cross/devel/bin/arm-dev-
-p4 -vv -r  2.6.29.4-kzm-arm11-g7b68317 -m  array_size array_size.stp
/*  build pass and array_size.ko */
/* transfer this .ko file to Target Machine */

ON TARGET: staprun.
I have build staprun on Target Machine.

#./configure --with-elfutils=elfutils/ --prefix=/tool/devel/
#make
#make install
/* staprun with .ko build on HOST Machine */
#staprun array_size.ko
#


However, I am not sure the configure --host, -- target, --build options yet.
Let me try these options some other time.

Best regards,
Naresh Kamboju



On Wed, Oct 28, 2009 at 8:18 PM, Frank Ch. Eigler <fche@redhat.com> wrote:
> Hi -
>
> On Wed, Oct 28, 2009 at 06:23:18PM +0530, naresh kamboju wrote:
>> > Try instead
>> > .../configure --target=arm... --prefix=... --with-elfutils=... --disable-translator
>>
>> I have tried in different ways to cross compile using installed
>> /usr/local/arm tool chain.
>> However, the stap and staprun are created in X86 format again.
>
> Right, modern autoconf likes to have "--build=HOST --host=TARGET"
> instead of "--target=TARGET" like the older ones did.  Anyway, just
> having tried this, systemtap's autoconf stuff is not set up properly
> for this style of cross-compilation (it fails during one of the
> configure file-existence checks).  It may not be a big job to fix it.
>
> In any case, you need far more than a cross gcc to make this work.
> You need a full toolchain including cross ld, cross glibc, and cross
> any other libraries that staprun may need to link to.  (I'm assuming
> you'd only ever try the --disable-translator cross build.)  And you'll
> need a cross-configured kernel build tree to build kernel modules
> against.
>
> You should consider building staprun natively on the arm box.
>
> - FChE
>