[bitbake-devel] BitBake - How to run do_install_prepend() for single machine conf

[Yoonus]

Hi,
I have a bb file with following functions. do_install_prepend() is for default/base machine configuration.do_install_prepend_m1() is for m1 machine configuration.do_install_prepend_m2() is for m2 machine configuration.do_install_prepend_m3() is for m3 machine configuration.
m1 is derived from default configuration. m2 and m3 are derived from m1.
When I run bb file for m3 machine configuration, I see, it runs do_install_prepend_m3(), do_install_prepend_m1() and do_install_prepend(). All 3 functions are called.
Is there a way to modify this bb, so that, only do_install_prepend_m3() is run? If do_install_prepend_m3() is not present, then it should run do_install_prepend_m1().If that is not present, it should run do_install_prepend(). That is, I only want to run one function.

do_install_prepend () {  echo "default install_prepend"}
do_install_prepend_m1 () {  echo "m1 install_prepend"}
do_install_prepend_m2 () {  echo "m2 install_prepend"}
do_install_prepend_m3 () {  echo "m3 install_prepend"}

Thanks for your help.
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