A versatile (cross-)toolchain generator.
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Chris Packham 4442dc87dd config: Detect rsync presence at config time
Linux kernel versions newer than 5.3 require rsync in order to export
the UAPI headers. Commit f441a6bf ("linux: Add dependency on rsync for
Linux >= 5.3") attempted to address this with a check that runs when
crosstool-ng is built. That had the downside that if crosstool-ng was
built and packaged on a machine that had rsync then run on a machine
that didn't then the build would fail due to the missing rsync.
Conversely if the first machine didn't have rsync installed when
crosstool-ng was built then we would not offer newer kernel versions.

We can address this by checking for rsync when the toolchain
configuration is updated using some functionality in the newer Kconfig
that we've updated to previously.

Fixes 
Signed-off-by: Chris Packham <judge.packham@gmail.com>
2023-12-18 16:28:14 +13:00
.github/workflows CI: Add sample for hppa-unknown-linux-gnu 2023-11-25 15:41:47 +13:00
bash-completion Add upgrade logic to version-check.sh 2019-01-27 22:55:26 -08:00
config config: Detect rsync presence at config time 2023-12-18 16:28:14 +13:00
contrib/gcc-test-suite contrib: Remove openrisc-or32.patch.lzma 2022-02-11 15:05:23 +13:00
debian Add missing dependencies for Debian build 2023-03-01 20:06:29 +13:00
docs User manual installation 2018-04-07 12:03:17 -07:00
kconfig kconfig: Use ncurses location determined by ./configure 2022-02-28 20:59:14 +13:00
licenses.d Rename directory "licenses" to "licenses.d" for those filesystems unable to handle lower/upper case. 2007-03-11 09:46:22 +00:00
m4 m4/ctng_python.m4: Use AC_PATH_PROGS for full path 2023-11-02 20:48:53 +13:00
maintainer maintainer/manage-packages.sh: Fix typo 2023-02-01 21:58:43 +13:00
packages elf2flt: Update to v2023.09 2023-12-08 12:19:59 +13:00
samples CI: Add sample for hppa-unknown-linux-gnu 2023-11-25 15:41:47 +13:00
scripts scripts/build/binutils: Update path for libbfd 2023-12-08 12:19:38 +13:00
testing testing/docker: Document policy 2022-05-15 11:19:49 +12:00
.gitignore Update .gitignore: Ignore .DS_Store on MacOS 2022-07-01 16:34:01 +12:00
.yamllint Minor yaml cleanup 2023-03-14 08:56:50 +13:00
bootstrap bootstrap: follow symlinks 2023-08-04 16:43:40 +12:00
configure.ac provide a workaround for a glibc and GNU make incompatibility 2023-07-21 16:47:34 +12:00
COPYING Update and clarify COPYING (plus a typo). 2008-09-14 18:20:03 +00:00
ct-ng.in Unify core passes 2022-02-11 00:47:51 -08:00
issue_template.md Doc renames & issue template 2017-04-13 00:07:29 -07:00
LICENSE Doc renames & issue template 2017-04-13 00:07:29 -07:00
Makefile.am Do not process 'packages' folder twice 2023-08-21 20:31:24 +12:00
paths.sh.in Make checking for python more predictable. 2023-03-16 16:54:05 +13:00
README.md Fix typo in README.md 2021-01-12 14:12:14 -06:00
TODO Add gnatls & gnatlink 2023-11-02 20:48:03 +13:00

Crosstool-NG

Introduction

Crosstool-NG aims at building toolchains. Toolchains are an essential component in a software development project. It will compile, assemble and link the code that is being developed. Some pieces of the toolchain will eventually end up in the resulting binaries: static libraries are but an example.

Before reporting a bug, please read bug reporting guidelines. Bugs that do not provide the required information will be closed without explanation.

Refer to documentation at crosstool-NG website for more information on how to configure, install and use crosstool-NG.

Note 1: If you elect to build a uClibc-based toolchain, you will have to prepare a config file for uClibc with <= crosstool-NG-1.21.0. In >= crosstool-NG-1.22.0 you only need to prepare a config file for uClibc(or uClibc-ng) if you really need a custom config for uClibc.

Note 2: If you call ct-ng --help you will get help for make(2). This is because ct-ng is in fact a make(2) script. There is no clean workaround for this.

Repository layout

To clone the crosstool-NG repository:

git clone https://github.com/crosstool-ng/crosstool-ng

Build Status

  • CI

Old repositories

These are the old Mercurial repositories. They are now read-only: http://crosstool-ng.org/hg/

Pull Requests and Issues

You can find open Pull Requests on GitHub here and you can find open issues here.

Contributing

To contribute to crosstool-NG it is helpful to provide as much information as you can about your change, including any updates to documentation (if appropriate), and test... test... test.

git clone https://github.com/crosstool-ng/crosstool-ng
  • Create a topic branch for your work
git checkout -b fix_comment_typo
  • Make changes
  • hack
  • test
  • hack
  • etc...
  • Add your changes
git add [file(s) that changed, add -p if you want to be more specific]
  • Verify you are happy with your changes to be commited
git diff --cached
  • Commit changes
git commit -s

The -s automatically adds your Signed-off-by: [name] <email> to your commit message. Your commit will be rejected without this.

Also, please explain what your change does. "Fix stuff" will be rejected. For examples of good commit messages, read the changelog.

  • Push your topic branch with your changes to your fork
git push origin fix_comment_typo
  • Go to the crosstool-ng project and click the Compare & pull request button for the branch you want to open a pull request with.
  • Review the pull request changes, and verify that you are opening a pull request for the appropriate branch. The title and message should reflect the nature/theme of the changes in the PR, say the title is Fix comment typos and the message details any specifics you can provide.
  • You might change the crosstool-ng branch, if you are opening a pull request that is intended for a different branch. For example, when you created your topic branch you could have done:
git checkout -b fix_out_of_date_patch origin/1.22

Then when you get to this pull request screen change the base branch from master to 1.22

  • By creating a pull request, the PR is entered into the backlog. A travis-ci job will run to test your changes against a select set of samples. As they start to get worked, they should be placed in the Ready state. PRs that are being worked are In Progress. If a questions come up about the commit that might involve changes to the commit then the PR is placed in Waiting For Response, you have two options:
  1. Fix the issue with the commit by adding a new commit in the topic branch that fixes the code review. Then push your changes to your branch. This option keeps the comments in the PR, and allows for further code review. I personally dislike this, because people are lazy and fix reviews with fix more review issues. Please make good commit messages! All rules about commits from above apply! THIS IS PREFERED

Add your changes

git add [file(s) that changed, add -p if you want to be more specific]

Verify you are happy with your changes to be commited

git diff --cached

Commit changes

git commit -s
  • Push your topic branch with your changes to your fork
git push origin fix_comment_typo

At this point the PR will be updated to have the latest commit to that branch, and can be subsequently reviewed.

  1. Interactively rebase the offending commit(s) to fix the code review. This option is slightly annoying on Github, as the comments are stored with the commits, and are hidden when new commits replace the old commits. They used to disappear completely; now Github shows a grey 'View outdated' link next to the old commits.

This recipe also comes handy with other issues, like your topic branch not being up-to-date with master:

git fetch --all
git rebase --ignore-whitespace origin master
git rebase -i <offending-commit-id>^

NOTE: The --ignore-whitespace stops git apply (which is called by rebase) from changing any whitespace when it runs.

Replace pick with edit or remove the line to delete a commit. Fix the issue in the code review.

git add [file(s)]
git rebase --continue
<update commit comment if needed>
git push --force origin fix_comment_typo

Patchwork

We previously used patchwork for development, but it is no longer used. I'd like to see patches that are still applicable turned into Pull Requests on GitHub.

You can find the list of pending patches available on patchwork.

More Info

You can find all of this and more at crosstool-ng.org

Report issues at the project site on GitHub.

We have a mailing list. Archive and subscription info can be found here: https://sourceware.org/ml/crossgcc/

Aloha! :-)