@herrtimson from my tests that patch does not resolve the strd r2, r3, [r1] crash on Xenial. However, I do believe it's entirely possible that it indirectly fixed the issue with your gcc-7 toolchain. I'm starting to wonder if this crash does not have a single cause but rather is a codepath that Firefox goes down if there is one of many possible failures in startup.
In addition to the Bionic build above, this weekend I got a Raspbian Stretch build working: https://www.dropbox.com/s/sdqwuda5eaw0cks/firefox_59.0.2%2Bbuild1 -stretch-rpi2_armhf.deb?dl=0 with some overview on the forums: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=150438 I used Bionic sources (deb-src http://ports.ubuntu.com/ubuntu-ports/ bionic main restricted) in a Stretch container (gcc-6). Initially it crashed on the same strd, so I tried switching to clang and then encountered the same "undefined reference to `free'" errors you guys had mentioned. These come about mainly due it not being supported to call free() before declaration in C99, so then the fix was to add #include <stdlib.h> in a couple places. I don't think I'll attempt another Xenial or Trusty build anytime soon. I'd like to get some fixes documented and patches submitted upstream so that others can start building Firefox armhf across more platforms. Anyone can still run the 18.04 binary I linked earlier on 16.04 (and possibly 14.04) using the LD_PRELOAD trick. As for how Arch Linux has been working, I've confirmed it's due to --disable-stylo (mentioned a while ago on the Raspberry Pi forum thread). If I add that flag (while leaving SK_JUMPER_USE_ASSEMBLY intact) then Firefox runs. For some reason the Stylo flag does not get listed in about:buildconfig but it's a very different build path when MOZ_STYLO is disabled, and Stylo is still disabled for Android nightly too. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1711337 Title: Firefox crashes at start on armv7L after 55.0.1 update Status in Mozilla Firefox: Expired Status in firefox package in Ubuntu: Confirmed Bug description: Firefox always crashes when launched after the 55.0.1 update on an Orange Pi PC Plus (a single-board computer similar to a Raspberry Pi), even in safe mode. I did a fresh install of Armbian (a Ubuntu Xenial 16.04 re-spin for ARM single-board computer) on a similar board (Orange Pi Plus 2e), installed Firefox and experienced the same problem--it won't load without crashing. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 55.0.1+build2-0ubuntu0.16.04.2 Uname: Linux 3.4.113-sun8i armv7l AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25. ApportVersion: 2.20.1-0ubuntu2.10 Architecture: armhf AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jim 1138 F.... pulseaudio /dev/snd/controlC0: jim 1138 F.... pulseaudio BuildID: 20170814194718 Card0.Amixer.info: Card hw:0 'audiocodec'/'audiocodec' Mixer name : '' Components : '' Controls : 12 Simple ctrls : 12 Card1.Amixer.info: Card hw:1 'sndhdmi'/'sndhdmi' Mixer name : '' Components : '' Controls : 1 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'hdmi audio format Function',0 Capabilities: enum Items: 'null' 'pcm' 'AC3' 'MPEG1' 'MP3' 'MPEG2' 'AAC' 'DTS' 'ATRAC' 'ONE_BIT_AUDIO' 'DOLBY_DIGITAL_PLUS' 'DTS_HD' 'MAT' 'WMAPRO' Item0: 'pcm' Channel: Unavailable CurrentDesktop: XFCE Date: Thu Aug 17 05:37:00 2017 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) IpRoute: default via 192.168.10.1 dev eth0 default via 192.168.10.1 dev wlan0 proto static metric 600 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.10.0/24 dev eth0 proto kernel scope link src 192.168.10.107 192.168.10.0/24 dev wlan0 proto kernel scope link src 192.168.10.108 metric 600 Locales: extensions.sqlite corrupt or missing PciMultimedia: PciNetwork: Profiles: Profile0 (Default) - LastVersion=55.0.1/20170814194718 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1711337/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp