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docs: document the steps to update GCC buildtools

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Change-Id: Iaa41194e0f76594efd504b65f3565b22743dce34
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Niels Sascha Reedijk 2023-08-12 07:59:23 +01:00
parent ef611e96c4
commit d2edfdd11d
1 changed files with 38 additions and 2 deletions
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docs/develop/build/sourcecode.rst
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@ -41,8 +41,8 @@ conflict resolution to make sure our patches are correctly ported from one versi
It also makes it easy to compare the current state of our sourcecode with the upstream code, for
example to extract patches that could be upstreamed.
How to import upstream changes
..............................
How to import upstream binutils changes
.......................................
Here is an example of the process used to update to a new version of binutils:
@ -66,6 +66,42 @@ Now this can easily be merged into the master branch:
Review and fix the conflicts, if any, then push the changes for review on Gerrit.
How to import upstream gcc changes
..................................
Here is an example of the process used to update to a new version of binutils:
.. code-block:: bash
git checkout vendor-gcc # Move to the branch containing binutils
git rm -rf gcc ; rm -rf gcc # Delete the existing version of binutils
wget http://.../gcc-13.2.0.tar.xz # Download the latest version
tar xf gcc-13.2.0.tar.xz # Extract the new binutils version
mv gcc-13.2.0 gcc # Move the extracted files to the right place
pushd gcc
./contrib/download_prerequisites # Download the required gmp, isl, mpfr and mpc dependencies
rm gmp gmp-6.2.1.tar.bz2 # Remove gmp download and symbolic link
mv gmp-6.2.1 gmp # Move the downloaded gmp dependency in place
rm isl isl-0.24.tar.bz2
mv isl-0.24 isl
rm mpc mpc-1.2.1.tar.gz
mv mpc-1.2.1 mpc
rm mpfr mpfr-4.1.0.tar.bz2
mv mpfr-4.1.0 mpfr
popd
git add -f gcc # Add the new files to git
git commit -m "import gcc 13.2.0" # Commit the files in the vendor branch
git push origin vendor-binutils # You can push this directly to the branch
Now this can easily be merged into the master branch:
.. code-block:: bash
git checkout master
git merge vendor-binutils
Review and fix the conflicts, if any, then push the changes for review on Gerrit.
Comparing our code with upstream
................................