LAMW is  ready for 64 bits?
lazarus / 43-Android

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ADiV · 2019-02-01 18:25

Hi guys, Is this LAMW ready for 64 bits? Google as of August 1, 2019
will require a 64-bit version and in 2021 the apps that do not have a
64-bit version will disappear.

https://android-developers.googleblog.com/2019/01/get-your-apps-ready-
for-64-bit.html
https://developer.android.com/distribute/best-practices/develop/64-bit

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jmpessoa · 2019-02-01 20:36

Yes! What we need are just "FPC for aarch64+Android"..... and some
minor settings...

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yuriy_sydorov · 2019-02-03 12:22

FPC already supports aarch64-android and x86_64-android in the trunk
and the 3.2 branch. I encourage everybody to actively test the 64-bit
android targets.

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jmpessoa · 2019-03-09 02:35

Hi, Yuriy sydorov!

I have Lazarus 2.0 [64-bit] - Windows.

Can the inner "....\fpc\3.04" be used as bootstrap [+ trunk  source]
to produce the cross  aarch64-android? 

What about "-Cp" [ArmV8 or ArmV8A or not applicable] ?
What about "-Cf" [VFPv4 or VFPv3 or not applicable] ?

all my attempts have failed after having produced and
installed/integrated "ppcrossa64"!

I get the errors:

1) when opening a LAMW  "aarch64" project
Quote"C:\lazarus2064\fpc\3.0.4\bin\x86_64-win64\fpc.exe" does not
support target aarch64-android

2) when [trying] building the "aarch64" LAMW project  ["Run" -->
"Build"] to produce a ".so" library
QuoteError: Illegal processor type "aarch64"

Thank you!

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Thaddy · 2019-03-09 08:49

You can bootstrap (should! bootstrap) with 3.0.4. indeed, but the
AARCH support for Android requires the sources from at least the 3.2.0
RC branch or trunk.

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Cyrax · 2019-03-09 10:54

You need to build native compiler and then build the cross compiler by
using the native one.

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yuriy_sydorov · 2019-03-11 13:48

Quote from: jmpessoa on March 09, 2019, 03:35:15 amI have Lazarus 2.0
[64-bit] - Windows.

Can the inner "....\fpc\3.04" be used as bootstrap [+ trunk  source]
to produce the cross  aarch64-android? 

Yes, to build a cross compiler from the trunk or 3.2 branch you can
use fpc 3.0.4 as a starting compiler.

Quote from: jmpessoa on March 09, 2019, 03:35:15 amWhat about "-Cp"
[ArmV8 or ArmV8A or not applicable] ?
What about "-Cf" [VFPv4 or VFPv3 or not applicable] ?

No need to specify any additional options.

Quote from: jmpessoa on March 09, 2019, 03:35:15 amall my attempts
have failed after having produced and installed/integrated
"ppcrossa64"!

I get the errors:

1) when opening a LAMW  "aarch64" project
Quote"C:\lazarus2064\fpc\3.0.4\bin\x86_64-win64\fpc.exe" does not
support target aarch64-android

2) when [trying] building the "aarch64" LAMW project  ["Run" -->
"Build"] to produce a ".so" library
QuoteError: Illegal processor type "aarch64"

Thank you!

You need to use "fpc.exe" compiled from the trunk or 3.2 branch
sources or invoke a cross-compiler binary directly.  fpc.exe 3.0.4
does not know than the android target supports 64-bit CPUs. Simply
replace an existing fpc.exe by the new one.

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jmpessoa · 2019-03-12 04:59

QuoteYou need to use "fpc.exe" compiled from the trunk or 3.2 branch
sources or invoke a cross-compiler binary directly.  fpc.exe 3.0.4
does not know than the android target supports 64-bit CPUs. Simply
replace an existing fpc.exe by the new one.

Thank you!!!!

PS.  LAMW 0.8.4: Added  "aarch64" support !
ref. https://github.com/LongDirtyAnimAlf/fpcupdeluxe/releases
build test: FPC Trunk + Laz Trunk + LAMW + cross "aarch64-android"
[Thanks to DonAlfredo!]