[meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Michael Heimpold]

If my git skills don't trick me, forcing ARM mode for PHP
dates back to year 2015 with commit e836f8f93.

I wondered whether the compile problem still persists and just
tested that it compiles fine for qemuarm nowaydays.

I also tested the binaries on a physical device, a
NXP iMX6ULL based one, and did not notice any problems
so far.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
---
 meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb b/meta-oe/recipes-devtools/php/php_8.2.6.bb
index dad955452..404ff393b 100644
--- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
+++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
@@ -284,12 +284,3 @@ do_install:append:class-native() {
     create_wrapper ${D}${bindir}/php \
         PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
 }
-
-# Fails to build with thumb-1 (qemuarm)
-# | {standard input}: Assembler messages:
-# | {standard input}:3719: Error: selected processor does not support Thumb mode `smull r0,r2,r9,r3'
-# | {standard input}:3720: Error: unshifted register required -- `sub r2,r2,r0,asr#31'
-# | {standard input}:3796: Error: selected processor does not support Thumb mode `smull r0,r2,r3,r3'
-# | {standard input}:3797: Error: unshifted register required -- `sub r2,r2,r0,asr#31'
-# | make: *** [ext/standard/math.lo] Error 1
-ARM_INSTRUCTION_SET = "arm"
-- 
2.34.1

Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Martin Jansa]

[-- Attachment #1: Type: text/plain, Size: 2509 bytes --]

Did you try it on qemuarmv5? as regular qemuarm used Thumb2 since 2019
https://git.openembedded.org/openembedded-core/commit/meta/conf/machine/qemuarm.conf?id=6fc70eb4f3494bee2be10ee24fe3ea1c8b5ff988
(and most of these issues where ARM_INSTRUCTION_SET is explicitly set in
the recipe were reproducible only with Thumb-1).

That said, I haven't built any armv5 builds recently and it's quite likely
that nobody cares about Thumb-1 nowadays.

On Sun, Jun 11, 2023 at 6:05 PM Michael Heimpold <mhei@heimpold.de> wrote:

> If my git skills don't trick me, forcing ARM mode for PHP
> dates back to year 2015 with commit e836f8f93.
>
> I wondered whether the compile problem still persists and just
> tested that it compiles fine for qemuarm nowaydays.
>
> I also tested the binaries on a physical device, a
> NXP iMX6ULL based one, and did not notice any problems
> so far.
>
> Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> ---
>  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
>  1 file changed, 9 deletions(-)
>
> diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> index dad955452..404ff393b 100644
> --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> @@ -284,12 +284,3 @@ do_install:append:class-native() {
>      create_wrapper ${D}${bindir}/php \
>          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
>  }
> -
> -# Fails to build with thumb-1 (qemuarm)
> -# | {standard input}: Assembler messages:
> -# | {standard input}:3719: Error: selected processor does not support
> Thumb mode `smull r0,r2,r9,r3'
> -# | {standard input}:3720: Error: unshifted register required -- `sub
> r2,r2,r0,asr#31'
> -# | {standard input}:3796: Error: selected processor does not support
> Thumb mode `smull r0,r2,r3,r3'
> -# | {standard input}:3797: Error: unshifted register required -- `sub
> r2,r2,r0,asr#31'
> -# | make: *** [ext/standard/math.lo] Error 1
> -ARM_INSTRUCTION_SET = "arm"
> --
> 2.34.1
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
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> View/Reply Online (#103205):
> https://lists.openembedded.org/g/openembedded-devel/message/103205
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> Martin.Jansa@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>
>

[-- Attachment #2: Type: text/html, Size: 3921 bytes --]

Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Khem Raj]

On Sun, Jun 11, 2023 at 9:05 AM Michael Heimpold <mhei@heimpold.de> wrote:
>
> If my git skills don't trick me, forcing ARM mode for PHP
> dates back to year 2015 with commit e836f8f93.
>
> I wondered whether the compile problem still persists and just
> tested that it compiles fine for qemuarm nowaydays.
>
> I also tested the binaries on a physical device, a
> NXP iMX6ULL based one, and did not notice any problems
> so far.
>
> Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> ---
>  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
>  1 file changed, 9 deletions(-)
>
> diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> index dad955452..404ff393b 100644
> --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> @@ -284,12 +284,3 @@ do_install:append:class-native() {
>      create_wrapper ${D}${bindir}/php \
>          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
>  }
> -
> -# Fails to build with thumb-1 (qemuarm)
> -# | {standard input}: Assembler messages:
> -# | {standard input}:3719: Error: selected processor does not support Thumb mode `smull r0,r2,r9,r3'
> -# | {standard input}:3720: Error: unshifted register required -- `sub r2,r2,r0,asr#31'
> -# | {standard input}:3796: Error: selected processor does not support Thumb mode `smull r0,r2,r3,r3'
> -# | {standard input}:3797: Error: unshifted register required -- `sub r2,r2,r0,asr#31'
> -# | make: *** [ext/standard/math.lo] Error 1
> -ARM_INSTRUCTION_SET = "arm"

Martin explained it well, it was seen with thumb1 ISA some armv6 and
all armv7+ uses thumb2 ISA along with standard ARM ISA
Testing this will need armv4/armv5 perhaps you can limit this to
armv5/arm4 arches

ARM_INSTRUCTION_SET:armv5 = "arm"
ARM_INSTRUCTION_SET:armv4 = "arm"

If you can test it on armv5 and ensure that it works there too now a
days then we can remove it completely

> --
> 2.34.1
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
> Links: You receive all messages sent to this group.
> View/Reply Online (#103205): https://lists.openembedded.org/g/openembedded-devel/message/103205
> Mute This Topic: https://lists.openembedded.org/mt/99465975/1997914
> Group Owner: openembedded-devel+owner@lists.openembedded.org
> Unsubscribe: https://lists.openembedded.org/g/openembedded-devel/unsub [raj.khem@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>

Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Michael Heimpold]

Am Sonntag, 11. Juni 2023, 18:32:31 CEST schrieb Khem Raj:
> On Sun, Jun 11, 2023 at 9:05 AM Michael Heimpold <mhei@heimpold.de> wrote:
> > If my git skills don't trick me, forcing ARM mode for PHP
> > dates back to year 2015 with commit e836f8f93.
> > 
> > I wondered whether the compile problem still persists and just
> > tested that it compiles fine for qemuarm nowaydays.
> > 
> > I also tested the binaries on a physical device, a
> > NXP iMX6ULL based one, and did not notice any problems
> > so far.
> > 
> > Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> > ---
> > 
> >  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
> >  1 file changed, 9 deletions(-)
> > 
> > diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > b/meta-oe/recipes-devtools/php/php_8.2.6.bb index dad955452..404ff393b
> > 100644
> > --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > @@ -284,12 +284,3 @@ do_install:append:class-native() {
> > 
> >      create_wrapper ${D}${bindir}/php \
> >      
> >          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
> >  
> >  }
> > 
> > -
> > -# Fails to build with thumb-1 (qemuarm)
> > -# | {standard input}: Assembler messages:
> > -# | {standard input}:3719: Error: selected processor does not support
> > Thumb mode `smull r0,r2,r9,r3' -# | {standard input}:3720: Error:
> > unshifted register required -- `sub r2,r2,r0,asr#31' -# | {standard
> > input}:3796: Error: selected processor does not support Thumb mode `smull
> > r0,r2,r3,r3' -# | {standard input}:3797: Error: unshifted register
> > required -- `sub r2,r2,r0,asr#31' -# | make: *** [ext/standard/math.lo]
> > Error 1
> > -ARM_INSTRUCTION_SET = "arm"
> 
> Martin explained it well, it was seen with thumb1 ISA some armv6 and
> all armv7+ uses thumb2 ISA along with standard ARM ISA
> Testing this will need armv4/armv5 perhaps you can limit this to
> armv5/arm4 arches
> 
> ARM_INSTRUCTION_SET:armv5 = "arm"
> ARM_INSTRUCTION_SET:armv4 = "arm"
> 
> If you can test it on armv5 and ensure that it works there too now a
> days then we can remove it completely

Thank you all for your feedback.

Here is what I've done so far.

I've done a compile test against machine qemuarmv5 which succeeded
without errors.

I have a custom board at hand, which uses a NXP iMX28 CPU, the build
configuration tells me the same TUNE_FEATURES as qemuarmv5:
MACHINE              = "evachargese"
TUNE_FEATURES        = "arm armv5 thumb dsp"
I used the kirkstone branch to have a faster roundtrip since the board
currently runs a kirkstone-based system. The PHP binaries run without
obvious problems in a quick test (simple webpages on the device).

I have no armv4 board at hand nor a found a configuration file for qemuarmv4.
So I put some lines manually together using strongarm - which should be armv4, 
right? It resulted in
TUNE_FEATURES        = "arm strongarm"
The build completed without error - no runtime testing with qemu done yet.

Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Khem Raj]

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On Sun, Jun 11, 2023 at 1:53 PM Michael Heimpold <mhei@heimpold.de> wrote:

> Am Sonntag, 11. Juni 2023, 18:32:31 CEST schrieb Khem Raj:
> > On Sun, Jun 11, 2023 at 9:05 AM Michael Heimpold <mhei@heimpold.de>
> wrote:
> > > If my git skills don't trick me, forcing ARM mode for PHP
> > > dates back to year 2015 with commit e836f8f93.
> > >
> > > I wondered whether the compile problem still persists and just
> > > tested that it compiles fine for qemuarm nowaydays.
> > >
> > > I also tested the binaries on a physical device, a
> > > NXP iMX6ULL based one, and did not notice any problems
> > > so far.
> > >
> > > Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> > > ---
> > >
> > >  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
> > >  1 file changed, 9 deletions(-)
> > >
> > > diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > b/meta-oe/recipes-devtools/php/php_8.2.6.bb index dad955452..404ff393b
> > > 100644
> > > --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > @@ -284,12 +284,3 @@ do_install:append:class-native() {
> > >
> > >      create_wrapper ${D}${bindir}/php \
> > >
> > >          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
> > >
> > >  }
> > >
> > > -
> > > -# Fails to build with thumb-1 (qemuarm)
> > > -# | {standard input}: Assembler messages:
> > > -# | {standard input}:3719: Error: selected processor does not support
> > > Thumb mode `smull r0,r2,r9,r3' -# | {standard input}:3720: Error:
> > > unshifted register required -- `sub r2,r2,r0,asr#31' -# | {standard
> > > input}:3796: Error: selected processor does not support Thumb mode
> `smull
> > > r0,r2,r3,r3' -# | {standard input}:3797: Error: unshifted register
> > > required -- `sub r2,r2,r0,asr#31' -# | make: *** [ext/standard/math.lo]
> > > Error 1
> > > -ARM_INSTRUCTION_SET = "arm"
> >
> > Martin explained it well, it was seen with thumb1 ISA some armv6 and
> > all armv7+ uses thumb2 ISA along with standard ARM ISA
> > Testing this will need armv4/armv5 perhaps you can limit this to
> > armv5/arm4 arches
> >
> > ARM_INSTRUCTION_SET:armv5 = "arm"
> > ARM_INSTRUCTION_SET:armv4 = "arm"
> >
> > If you can test it on armv5 and ensure that it works there too now a
> > days then we can remove it completely
>
> Thank you all for your feedback.
>
> Here is what I've done so far.
>
> I've done a compile test against machine qemuarmv5 which succeeded
> without errors.
>
> I have a custom board at hand, which uses a NXP iMX28 CPU, the build
> configuration tells me the same TUNE_FEATURES as qemuarmv5:
> MACHINE              = "evachargese"
> TUNE_FEATURES        = "arm armv5 thumb dsp"
> I used the kirkstone branch to have a faster roundtrip since the board
> currently runs a kirkstone-based system. The PHP binaries run without
> obvious problems in a quick test (simple webpages on the device).


That’s for testing it out. Can you check compiler longs for php and see if
it passed -mthumb to it ?

>
>
> I have no armv4 board at hand nor a found a configuration file for
> qemuarmv4.
> So I put some lines manually together using strongarm - which should be
> armv4,
> right? It resulted in
> TUNE_FEATURES        = "arm strongarm"
> The build completed without error - no runtime testing with qemu done yet.
>
>
>
>

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Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Michael Heimpold]

Am Montag, 12. Juni 2023, 01:44:29 CEST schrieb Khem Raj:
> On Sun, Jun 11, 2023 at 1:53 PM Michael Heimpold <mhei@heimpold.de> wrote:
> > Am Sonntag, 11. Juni 2023, 18:32:31 CEST schrieb Khem Raj:
> > > On Sun, Jun 11, 2023 at 9:05 AM Michael Heimpold <mhei@heimpold.de>
> > 
> > wrote:
> > > > If my git skills don't trick me, forcing ARM mode for PHP
> > > > dates back to year 2015 with commit e836f8f93.
> > > > 
> > > > I wondered whether the compile problem still persists and just
> > > > tested that it compiles fine for qemuarm nowaydays.
> > > > 
> > > > I also tested the binaries on a physical device, a
> > > > NXP iMX6ULL based one, and did not notice any problems
> > > > so far.
> > > > 
> > > > Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> > > > ---
> > > > 
> > > >  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
> > > >  1 file changed, 9 deletions(-)
> > > > 
> > > > diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > b/meta-oe/recipes-devtools/php/php_8.2.6.bb index dad955452..404ff393b
> > > > 100644
> > > > --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > @@ -284,12 +284,3 @@ do_install:append:class-native() {
> > > > 
> > > >      create_wrapper ${D}${bindir}/php \
> > > >      
> > > >          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
> > > >  
> > > >  }
> > > > 
> > > > -
> > > > -# Fails to build with thumb-1 (qemuarm)
> > > > -# | {standard input}: Assembler messages:
> > > > -# | {standard input}:3719: Error: selected processor does not support
> > > > Thumb mode `smull r0,r2,r9,r3' -# | {standard input}:3720: Error:
> > > > unshifted register required -- `sub r2,r2,r0,asr#31' -# | {standard
> > > > input}:3796: Error: selected processor does not support Thumb mode
> > 
> > `smull
> > 
> > > > r0,r2,r3,r3' -# | {standard input}:3797: Error: unshifted register
> > > > required -- `sub r2,r2,r0,asr#31' -# | make: ***
> > > > [ext/standard/math.lo]
> > > > Error 1
> > > > -ARM_INSTRUCTION_SET = "arm"
> > > 
> > > Martin explained it well, it was seen with thumb1 ISA some armv6 and
> > > all armv7+ uses thumb2 ISA along with standard ARM ISA
> > > Testing this will need armv4/armv5 perhaps you can limit this to
> > > armv5/arm4 arches
> > > 
> > > ARM_INSTRUCTION_SET:armv5 = "arm"
> > > ARM_INSTRUCTION_SET:armv4 = "arm"
> > > 
> > > If you can test it on armv5 and ensure that it works there too now a
> > > days then we can remove it completely
> > 
> > Thank you all for your feedback.
> > 
> > Here is what I've done so far.
> > 
> > I've done a compile test against machine qemuarmv5 which succeeded
> > without errors.
> > 
> > I have a custom board at hand, which uses a NXP iMX28 CPU, the build
> > configuration tells me the same TUNE_FEATURES as qemuarmv5:
> > MACHINE              = "evachargese"
> > TUNE_FEATURES        = "arm armv5 thumb dsp"
> > I used the kirkstone branch to have a faster roundtrip since the board
> > currently runs a kirkstone-based system. The PHP binaries run without
> > obvious problems in a quick test (simple webpages on the device).
> 
> That’s for testing it out. Can you check compiler longs for php and see if
> it passed -mthumb to it ?

Just to ensure, that I got you right: you mean something like
grep thumb tmp/work/armv5e-poky-linux-gnueabi/php/8.1.16-r0/temp/log.*
which shows an empty result for qemuarmv5/evachargese and for qemuarm
there are a lot of matches like:
.../log.do_compile.2431535:/bin/bash /.../cortexa15t2hf-neon-poky-linux-
gnueabi/php/8.1.16-r0/build/libtool --silent --preserve-dup-deps --tag CC --
mode=compile arm-poky-linux-gnueabi-gcc -mthumb -mfpu=neon -mfloat-abi=hard -
mcpu=cortex-a15 ...

> > I have no armv4 board at hand nor a found a configuration file for
> > qemuarmv4.
> > So I put some lines manually together using strongarm - which should be
> > armv4,
> > right? It resulted in
> > TUNE_FEATURES        = "arm strongarm"
> > The build completed without error - no runtime testing with qemu done yet.

Re: [oe] [meta-oe][PATCH] php: drop explicite ARM_INSTRUCTION_SET

[Khem Raj]

On Mon, Jun 12, 2023 at 10:57 AM Michael Heimpold <mhei@heimpold.de> wrote:
>
> Am Montag, 12. Juni 2023, 01:44:29 CEST schrieb Khem Raj:
> > On Sun, Jun 11, 2023 at 1:53 PM Michael Heimpold <mhei@heimpold.de> wrote:
> > > Am Sonntag, 11. Juni 2023, 18:32:31 CEST schrieb Khem Raj:
> > > > On Sun, Jun 11, 2023 at 9:05 AM Michael Heimpold <mhei@heimpold.de>
> > >
> > > wrote:
> > > > > If my git skills don't trick me, forcing ARM mode for PHP
> > > > > dates back to year 2015 with commit e836f8f93.
> > > > >
> > > > > I wondered whether the compile problem still persists and just
> > > > > tested that it compiles fine for qemuarm nowaydays.
> > > > >
> > > > > I also tested the binaries on a physical device, a
> > > > > NXP iMX6ULL based one, and did not notice any problems
> > > > > so far.
> > > > >
> > > > > Signed-off-by: Michael Heimpold <mhei@heimpold.de>
> > > > > ---
> > > > >
> > > > >  meta-oe/recipes-devtools/php/php_8.2.6.bb | 9 ---------
> > > > >  1 file changed, 9 deletions(-)
> > > > >
> > > > > diff --git a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > > b/meta-oe/recipes-devtools/php/php_8.2.6.bb index dad955452..404ff393b
> > > > > 100644
> > > > > --- a/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > > +++ b/meta-oe/recipes-devtools/php/php_8.2.6.bb
> > > > > @@ -284,12 +284,3 @@ do_install:append:class-native() {
> > > > >
> > > > >      create_wrapper ${D}${bindir}/php \
> > > > >
> > > > >          PHP_PEAR_SYSCONF_DIR=${sysconfdir}/
> > > > >
> > > > >  }
> > > > >
> > > > > -
> > > > > -# Fails to build with thumb-1 (qemuarm)
> > > > > -# | {standard input}: Assembler messages:
> > > > > -# | {standard input}:3719: Error: selected processor does not support
> > > > > Thumb mode `smull r0,r2,r9,r3' -# | {standard input}:3720: Error:
> > > > > unshifted register required -- `sub r2,r2,r0,asr#31' -# | {standard
> > > > > input}:3796: Error: selected processor does not support Thumb mode
> > >
> > > `smull
> > >
> > > > > r0,r2,r3,r3' -# | {standard input}:3797: Error: unshifted register
> > > > > required -- `sub r2,r2,r0,asr#31' -# | make: ***
> > > > > [ext/standard/math.lo]
> > > > > Error 1
> > > > > -ARM_INSTRUCTION_SET = "arm"
> > > >
> > > > Martin explained it well, it was seen with thumb1 ISA some armv6 and
> > > > all armv7+ uses thumb2 ISA along with standard ARM ISA
> > > > Testing this will need armv4/armv5 perhaps you can limit this to
> > > > armv5/arm4 arches
> > > >
> > > > ARM_INSTRUCTION_SET:armv5 = "arm"
> > > > ARM_INSTRUCTION_SET:armv4 = "arm"
> > > >
> > > > If you can test it on armv5 and ensure that it works there too now a
> > > > days then we can remove it completely
> > >
> > > Thank you all for your feedback.
> > >
> > > Here is what I've done so far.
> > >
> > > I've done a compile test against machine qemuarmv5 which succeeded
> > > without errors.
> > >
> > > I have a custom board at hand, which uses a NXP iMX28 CPU, the build
> > > configuration tells me the same TUNE_FEATURES as qemuarmv5:
> > > MACHINE              = "evachargese"
> > > TUNE_FEATURES        = "arm armv5 thumb dsp"
> > > I used the kirkstone branch to have a faster roundtrip since the board
> > > currently runs a kirkstone-based system. The PHP binaries run without
> > > obvious problems in a quick test (simple webpages on the device).
> >
> > That’s for testing it out. Can you check compiler longs for php and see if
> > it passed -mthumb to it ?
>
> Just to ensure, that I got you right: you mean something like
> grep thumb tmp/work/armv5e-poky-linux-gnueabi/php/8.1.16-r0/temp/log.*
> which shows an empty result for qemuarmv5/evachargese and for qemuarm
> there are a lot of matches like:
> .../log.do_compile.2431535:/bin/bash /.../cortexa15t2hf-neon-poky-linux-
> gnueabi/php/8.1.16-r0/build/libtool --silent --preserve-dup-deps --tag CC --
> mode=compile arm-poky-linux-gnueabi-gcc -mthumb -mfpu=neon -mfloat-abi=hard -
> mcpu=cortex-a15 ...

yes thanks.

>
> > > I have no armv4 board at hand nor a found a configuration file for
> > > qemuarmv4.
> > > So I put some lines manually together using strongarm - which should be
> > > armv4,
> > > right? It resulted in
> > > TUNE_FEATURES        = "arm strongarm"
> > > The build completed without error - no runtime testing with qemu done yet.
>
>
>
>