Difference between revisions of "Porting/Firefox"
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JeremyRand (talk | contribs) (1488552, 1499121, and 1503749 are fixed by Mozilla) |
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== Finished == | == Finished == | ||
| − | * '''Both''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1498938 Implement XPIDL calls with implicit_jscontext on PPC64] | + | * '''Both''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1498938 62+ Implement XPIDL calls with implicit_jscontext on PPC64] (Fixed in 64) |
| − | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1499277 JavaScript engine crashes due to double endian conversion] | + | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1499277 64: JavaScript engine crashes due to double endian conversion] |
| − | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1500709 Graphics swizzling code is wrong on BE] | + | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1500709 62+: Graphics swizzling code is wrong on BE] (Fixed in 64) |
| + | * '''Both''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1503749 65: Skia does not build on any non-x86/ARM platform] | ||
| + | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1488552 ESR60 only: JS brokenness] | ||
| + | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1499121 ESR60 only: No graphic output] | ||
| + | * '''BE''' [https://bugzilla.mozilla.org/show_bug.cgi?id=1503749 65: Skia does not build on big endian machines] | ||
== In progress == | == In progress == | ||
| − | |||
| − | |||
== Needs work == | == Needs work == | ||
| − | * '''BE''' Skia colours are backwards in some cases (XXX: seems like it's specific to <canvas/>?) | + | * '''BE''' Skia colours are backwards in some cases (XXX: seems like it's specific to <canvas/>?) [https://bugzilla.mozilla.org/show_bug.cgi?id=1503749 bug filed for backwards colours in text glyphs] |
* '''BE''' FFmpeg overlays cause assertion because RGBX data is endian-shifted wrongly | * '''BE''' FFmpeg overlays cause assertion because RGBX data is endian-shifted wrongly | ||
* '''Both?''' More acceleration with AltiVec / optional VSX / etc | * '''Both?''' More acceleration with AltiVec / optional VSX / etc | ||
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The Firefox JIT (IonMonkey) needs to be ported to all sorts of POWER. The most important targets are PPC64 BE (Adélie, FreeBSD, Gentoo) and PPC64 LE (Debian, Fedora). PPC32 BE would be useful for the community, in addition to those who want to run a 32-bit userland on 64-bit kernel on Talos - this can save memory and perform a little faster depending on workloads, and is officially supported by Debian. | The Firefox JIT (IonMonkey) needs to be ported to all sorts of POWER. The most important targets are PPC64 BE (Adélie, FreeBSD, Gentoo) and PPC64 LE (Debian, Fedora). PPC32 BE would be useful for the community, in addition to those who want to run a 32-bit userland on 64-bit kernel on Talos - this can save memory and perform a little faster depending on workloads, and is officially supported by Debian. | ||
| − | BE is being actively investigated by [[User:Awilfox|awilfox]] and the Adélie people; LE is | + | BE is being actively investigated by [[User:Awilfox|awilfox]] and the Adélie people; LE is [https://www.talospace.com/2021/12/91esr-with-baseline-compilerbaseline.html in progress] by Cameron Kaiser. |
== Build instructions == | == Build instructions == | ||
| Line 48: | Line 50: | ||
The build dependencies that are unpackaged on Adélie are Python 2 and Node.js. Node.js will require Python 2 to build, and the Mozilla build system is still in the process of upgrading to Python 3 compatibility. I've used an external drive mounted at /var/big (since it is 3TB drive), and installed Python 2 to --prefix /var/big/py2, and then installed Node.js to --prefix /var/big/node. So, <code>export PATH=/var/big/py2/bin:/var/big/node/bin:$PATH</code> should work. On most other distros those should be packaged and you can skip this step. | The build dependencies that are unpackaged on Adélie are Python 2 and Node.js. Node.js will require Python 2 to build, and the Mozilla build system is still in the process of upgrading to Python 3 compatibility. I've used an external drive mounted at /var/big (since it is 3TB drive), and installed Python 2 to --prefix /var/big/py2, and then installed Node.js to --prefix /var/big/node. So, <code>export PATH=/var/big/py2/bin:/var/big/node/bin:$PATH</code> should work. On most other distros those should be packaged and you can skip this step. | ||
| − | Download [[File:Mozconfig.txt]] as mozilla-unified/mozconfig. Adjust to your liking; if you are building on a GNU/Linux system instead of a musl libc system, change the triplets to 'powerpc64-unknown-linux-gnu'. If you are using a non-Adélie musl system, change the triplets to 'powerpc64-unknown-linux-musl'. Removing --enable-debug will make the browser much, much faster, but it will be much harder to catch bugs (as assertions won't crash it to get accurate backtraces). | + | Download [[File:Mozconfig.txt]] as mozilla-unified/mozconfig. Adjust to your liking; if you are building on a GNU/Linux system instead of a musl libc system, change the triplets to 'powerpc64-unknown-linux-gnu'. If you are using a non-Adélie musl system, change the triplets to 'powerpc64-unknown-linux-musl'. Removing --enable-debug will make the browser much, much faster, but it will be much harder to catch bugs (as assertions won't crash it to get accurate backtraces). Note that as of now, [https://bugzilla.mozilla.org/show_bug.cgi?id=1264836 you must use --with-system-icu on PowerPC]. |
If you are using musl (Adélie, Alpine, Void only): apply [[File:PPC64-musl-u2fhid.patch]] and [[File:WebRTC-on-musl.patch]]. If you are using Adélie, you need to apply [[File:Adelie-specific-triplet.patch]] so that the Rust compiler works. On all big endian hosts you'll need to apply [[File:Temp-assertion-disable.patch]] to run the browser with --enable-debug; otherwise, it will crash on startup. | If you are using musl (Adélie, Alpine, Void only): apply [[File:PPC64-musl-u2fhid.patch]] and [[File:WebRTC-on-musl.patch]]. If you are using Adélie, you need to apply [[File:Adelie-specific-triplet.patch]] so that the Rust compiler works. On all big endian hosts you'll need to apply [[File:Temp-assertion-disable.patch]] to run the browser with --enable-debug; otherwise, it will crash on startup. | ||
You can now run <code>./mach build</code> to build the browser. Use <code>./mach run</code> to run it; you will probably need to set <code>LD_LIBRARY_PATH=obj-powerpc64-foxkit-linux-musl/dist/bin</code> so that Firefox can find libxul (Mach does not handle that). | You can now run <code>./mach build</code> to build the browser. Use <code>./mach run</code> to run it; you will probably need to set <code>LD_LIBRARY_PATH=obj-powerpc64-foxkit-linux-musl/dist/bin</code> so that Firefox can find libxul (Mach does not handle that). | ||
| + | |||
| + | [[Category:Ports]] | ||
Latest revision as of 11:35, 2 January 2022
This page details the efforts to port Firefox to PowerPC/POWER.
Legend: 'Both' means both BE and LE benefit from the fix. 'BE' means the issue is specific to Big Endian; 'LE' means the issue is specific to Little Endian.
Finished
- Both 62+ Implement XPIDL calls with implicit_jscontext on PPC64 (Fixed in 64)
- BE 64: JavaScript engine crashes due to double endian conversion
- BE 62+: Graphics swizzling code is wrong on BE (Fixed in 64)
- Both 65: Skia does not build on any non-x86/ARM platform
- BE ESR60 only: JS brokenness
- BE ESR60 only: No graphic output
- BE 65: Skia does not build on big endian machines
In progress
Needs work
- BE Skia colours are backwards in some cases (XXX: seems like it's specific to <canvas/>?) bug filed for backwards colours in text glyphs
- BE FFmpeg overlays cause assertion because RGBX data is endian-shifted wrongly
- Both? More acceleration with AltiVec / optional VSX / etc
JIT
The Firefox JIT (IonMonkey) needs to be ported to all sorts of POWER. The most important targets are PPC64 BE (Adélie, FreeBSD, Gentoo) and PPC64 LE (Debian, Fedora). PPC32 BE would be useful for the community, in addition to those who want to run a 32-bit userland on 64-bit kernel on Talos - this can save memory and perform a little faster depending on workloads, and is officially supported by Debian.
BE is being actively investigated by awilfox and the Adélie people; LE is in progress by Cameron Kaiser.
Build instructions
This is how awilfox is building Firefox central (equivalent to Mozilla's Firefox Nightly, previously known as "Aurora" builds).
Ensure you have hg (Mercurial VCS) installed. You will need a significant amount of disk space; including the build directory, a normal mozilla-unified clone is over 20 GB. Paraphrasing from Mozilla's excellent description of working with their repository, which is a highly recommended read if you want to hack on the tree (and not just test it):
$ hg clone --uncompressed https://hg.mozilla.org/mozilla-unified $ hg up central
You can replace 'central' with 'beta' to get firefox64. Most work is landing on firefox65 now, so 64 may not work correctly. Specifically, this patch is required to make 64 run on BE.
Build-time dependencies for Firefox Quantum (also applies to Thunderbird 60+):
autoconf2.13 cargo clang llvm6-dev ncurses-dev openssl-dev perl rust which
Media libraries (some are optional, but all are highly recommended):
alsa-lib-dev bzip2-dev icu-dev libevent-dev libffi-dev libpng-dev libjpeg-turbo-dev nspr-dev nss-dev pulseaudio-dev zlib-dev
Libraries used by XUL (required):
dbus-glib-dev gconf-dev gtk+2.0-dev gtk+3.0-dev hunspell-dev libsm-dev libnotify-dev libxcomposite-dev libxdamage-dev libxrender-dev libxt-dev sqlite-dev startup-notification-dev unzip yasm zip
The build dependencies that are unpackaged on Adélie are Python 2 and Node.js. Node.js will require Python 2 to build, and the Mozilla build system is still in the process of upgrading to Python 3 compatibility. I've used an external drive mounted at /var/big (since it is 3TB drive), and installed Python 2 to --prefix /var/big/py2, and then installed Node.js to --prefix /var/big/node. So, export PATH=/var/big/py2/bin:/var/big/node/bin:$PATH should work. On most other distros those should be packaged and you can skip this step.
Download File:Mozconfig.txt as mozilla-unified/mozconfig. Adjust to your liking; if you are building on a GNU/Linux system instead of a musl libc system, change the triplets to 'powerpc64-unknown-linux-gnu'. If you are using a non-Adélie musl system, change the triplets to 'powerpc64-unknown-linux-musl'. Removing --enable-debug will make the browser much, much faster, but it will be much harder to catch bugs (as assertions won't crash it to get accurate backtraces). Note that as of now, you must use --with-system-icu on PowerPC.
If you are using musl (Adélie, Alpine, Void only): apply File:PPC64-musl-u2fhid.patch and File:WebRTC-on-musl.patch. If you are using Adélie, you need to apply File:Adelie-specific-triplet.patch so that the Rust compiler works. On all big endian hosts you'll need to apply File:Temp-assertion-disable.patch to run the browser with --enable-debug; otherwise, it will crash on startup.
You can now run ./mach build to build the browser. Use ./mach run to run it; you will probably need to set LD_LIBRARY_PATH=obj-powerpc64-foxkit-linux-musl/dist/bin so that Firefox can find libxul (Mach does not handle that).
