686843 - Add Windows/arm target

Status: RESOLVED INVALID

(Firefox Build System :: General, defect)

Description

[Makoto Kato [:m_kato]]

Windows 8 and VS11 support arm target, I would like to add arm target for experiment.

Comment 1

[(not currently active) Ted Mielczarek]

Interesting. Is this different from Windows CE?

Comment 2

[Gregory Szorc [:gps]]

(In reply to Ted Mielczarek [:ted, :luser] from comment #1)
> Interesting. Is this different from Windows CE?

This is presumably to support Windows 8 on ARM devices. This will require MSVC 2011 support, so adding that as a blocker.

Comment 3

[Makoto Kato [:m_kato]]

(In reply to Ted Mielczarek [:ted, :luser] from comment #1)
> Interesting. Is this different from Windows CE?

- ABI seems to be different.  double must be 8 bytes alignment.
- ARMv7 + thumb2 by default.  No option to use ARMv6

Comment 4

[Brian R. Bondy [:bbondy]]

MS is only allowing Metro apps on ARM at this point so I'm marking this as invalid.

Comment 5

[Antoine Turmel [:GeekShadow]]

Maybe it's time to reconsider this for Windows 10 since it's launching to device like Raspberry Pi 2 ?

Comment 6

[(not currently active) Ted Mielczarek]

It depends on whether Microsoft has changed their stance on the issue raised in comment 4.

Comment 8

[In]

Please support "Wine for Android"(compatibility layer) in AMR device.

Comment 9

[In]

Windows 10 on ARM?

Comment 10

[Makoto Kato [:m_kato]]

(In reply to In from comment #9)
> Windows 10 on ARM?

If we start to develop it, we (I?) will create meta bug for our work items.  So I don't know current plan and we shouldn't reopen this at this time.

Also, When WinRT age, I had a lot of patch set for jailbreak'ed WinRT...

Comment 11

[Makoto Kato [:m_kato]]

And as long as I know, Microsoft is testing for Firefox on WoA on x86 emulation.  And even if we port Firefox to aarch64, we don't have IonJIT compiler for aarch64, so Firefox x86 will faster than Firefox aarch64.