Hi Heinrich, Sorry for the late reply, other things were going on so I dropped my U-boot project for a while.
What you have written totally makes sense. I wasn't aware what the "hf" stands for in the package name. Just saw that my architecture was "armhf", so I assumed I needed the build essentials for that. Which I guess would have been the case if the project used floating point. I will update my commit. Best regards, Peter On Wed, 4 Dec 2024 at 10:34, Heinrich Schuchardt < heinrich.schucha...@canonical.com> wrote: > On 28.11.24 17:48, Peter Polgar wrote: > > This commit adds info about the needed package to cross compile > > U-Boot to ARMv7 (32 bit) architecture on Debian based distros. > > --- > > doc/build/gcc.rst | 12 ++++++++++++ > > 1 file changed, 12 insertions(+) > > > > diff --git a/doc/build/gcc.rst b/doc/build/gcc.rst > > index d8fcfdc4bf..c552e7b590 100644 > > --- a/doc/build/gcc.rst > > +++ b/doc/build/gcc.rst > > @@ -19,6 +19,12 @@ You could install GCC and the GCC cross compiler > > for the ARMv8 architecture with > > > > sudo apt-get install gcc gcc-aarch64-linux-gnu > >Tota > > +For the ARMv7 architecture (32 bit) use the below command instead > > + > > +.. code-block:: bash > > + > > + sudo apt-get install gcc crossbuild-essential-armhf > > crossbuild-essential-armhf depends on > gcc-arm-linux-gnueabihf gcc:armhf, g++-arm-linux-gnueabihf, g++:armhf, > dpkg-cross > > But gcc-arm-linux-gnueabi is all you need for cross-compiling 32-bit ARM > U-Boot. > > Adding an example for every architecture seems too much to me. > > Can't we simply update this sentence pointing out the the arm > cross-compiler has a suffix. > > "On Debian based systems the cross compiler packages are named > gcc-<architecture>-linux-gnu". > > E.g. add > > "gcc-arm-linux-gnueabi is the 32-bit ARM cross-compiler package." > > > + > > Depending on the build targets further packages maybe needed > > > > .. code-block:: bash > > @@ -118,6 +124,12 @@ Assuming cross compiling on Debian for ARMv8 this > would be > > > > CROSS_COMPILE=aarch64-linux-gnu- make > > > > +Also on Debian but for ARMv7 it would be > > + > > +.. code-block:: bash > > + > > + CROSS_COMPILE=arm-linux-gnueabihf- make > > U-Boot supports ARM SoCs prior to ARMv7. U-Boot doesn't use floating > point. So arm-linux-gnueabi is the right choice for all 32-bit ARM boards. > > Best regards > > Heinrich > > > + > > Out-of-tree building > > ~~~~~~~~~~~~~~~~~~~~ > > > >
