Comment 105 for bug 1711337

> [herrtimson] I wrote an email to Chris Coulson, asking for some assistance with the cflags. Hopefully he'll read it.

Thanks. I flagged him on #ubuntu-devel IRC as well. Hopefully we'll get his attention this time.

> > [Chituc] Can you check if the firefox 57.04 trusty , the working one shows
"-march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16" in about:buildconfig ?
> [Chris] It’s not showing those flags in about:buildconfig

I don't think this matters, because Firefox 57 Trusty still has the Skia crash for most armhf users. The main difference between Firefox 57 and 58/59 is that in Firefox 57 it's possible to disable Skia via prefs.js, but otherwise the misaligned instruction bug is still there.

> it fixes freebsd only, but still it might be helpfull to see what they changed.

The majority of that patch deals with atomics, compare-and-swap, and memory barriers, although might be worth noticing that it does add -march=armv7-a

> [Chituc] Builing on xenial did nto worked but a build in trusty have great chances to work .

Right, but important to note that building on Bionic will likely work too. That point may be helpful in getting the Ubuntu team to prioritize.

> CFLAGS="-march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16"

In case anyone is testing this soon, be sure to set both CFLAGS and CXXFLAGS. SkJumper_generated.S is assembly and I'm not sure which of the two flag sets gets passed, but the Skia project is largely C++.