Bug 41266: Build the Tor and Mullvad Browsers for aarch64 Linux

Merge Info

Related Issues

• #41266 (closed)
• #12631
• #32355

Backporting

Timeline

• Immediate: patchset needed as soon as possible
• Next Minor Stable Release: patchset that needs to be verified in nightly before backport
• Eventually: patchset that needs to be verified in alpha before backport
• No Backport (preferred): patchset for the next major stable

(Optional) Justification

• Emergency security update: patchset fixes CVEs, 0-days, etc
• Censorship event: patchset enables censorship circumvention
• Critical bug-fix: patchset fixes a bug in core-functionality
• Consistency: patchset which would make development easier if it were in both the alpha and release branches; developer tools, build system changes, etc
• Sponsor required: patchset required for sponsor
• Other: new platform enablement

Issue Tracking

• Link resolved issues with appropriate Release Prep issue for changelog generation

Review

Request Reviewer

• Request review from an applications developer depending on modified system:
  • NOTE: if the MR modifies multiple areas, please /cc all the relevant reviewers (since gitlab only allows 1 reviewer)
  • accessibility : henry
  • android : clairehurst, dan
  • build system : boklm
  • extensions : ma1
  • firefox internals (XUL/JS/XPCOM) : jwilde, ma1
  • fonts : pierov
  • frontend (implementation) : henry
  • frontend (review) : donuts, morgan
  • localization : henry, pierov
  • macOS : clairehurst, dan
  • nightly builds : boklm
  • rebases/release-prep : boklm, dan, ma1, morgan, pierov
  • security : jwilde, ma1
  • signing : boklm, morgan
  • updater : pierov
  • windows : jwilde, morgan
  • misc/other : morgan, pierov

Change Description

This MR closes issue #41266 (closed) and adds full support for building the Tor and Mullvad Browsers for Linux aarch64, except for deb and rpm packages. It does not add linux-aarch64 as a platform built by default by the browser-all and browser-all-desktop targets, nor it touches the updater. linux_packages and browser-all/browser-desktop enablement are left for later MRs (these are ready).

How Tested

Building and testing the Tor Browser for linux aarch64 almost on a daily basis for months. Tested to work from Debian 9 to Fedora 40.