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+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