[PATCH 0/1 V2] webkitgtk: turn off JIT on armv4 and armv7a

[PATCH 0/1 V2] webkitgtk: turn off JIT on armv4 and armv7a

[Robert Yang]

* V2
  Rebase and resend.

// Robert

The following changes since commit 84b11bce72296d04a0e6bc9f18669284017c3704:

  pkgconfig: Update AM_GLIB_GNU_GETTEXT macro (2016-05-17 17:26:05 +0100)

are available in the git repository at:

  git://git.openembedded.org/openembedded-core-contrib rbt/webkitgtk
  http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=rbt/webkitgtk

Robert Yang (1):
  webkitgtk: turn off JIT on armv4 and armv7a

 meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

-- 
2.7.4

[PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Robert Yang]

* It doesn't build on armv4:
{standard input}: Assembler messages:
{standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
{standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
{standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
{standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
{standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
{standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
{standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
{standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
{standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
{standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
[snip]

* It can build on armv7a, but doesn't work on runtime, cause
  displaying problems or ephiphany hang.

[YOCTO #9474]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
---
 meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
index bdbcbea..23ead72 100644
--- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
+++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
@@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
 EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
 EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
 
-# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
+# ARM JIT code does not build on ARMv4/5/6 anymore
 EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
 EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
+EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
+
+# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
+# displaying problems or ephiphany hang.
+EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
 
 # binutils 2.25.1 has a bug on aarch64:
 # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
-- 
2.7.4

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Khem Raj]

On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
> * It doesn't build on armv4:
> {standard input}: Assembler messages:
> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
> [snip]
>
> * It can build on armv7a, but doesn't work on runtime, cause
>   displaying problems or ephiphany hang.
>
> [YOCTO #9474]
>
> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
> ---
>  meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
> index bdbcbea..23ead72 100644
> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>  EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>  EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>
> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
> +# ARM JIT code does not build on ARMv4/5/6 anymore
>  EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>  EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
> +
> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
> +# displaying problems or ephiphany hang.
> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "

this should work fine with thumb2 e.g. so this is a little broad brush
here to diable it across
all armv7

>
>  # binutils 2.25.1 has a bug on aarch64:
>  # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
> --
> 2.7.4
>
> --
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Gary Thomas]

On 2016-05-18 22:07, Khem Raj wrote:
> On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
>> * It doesn't build on armv4:
>> {standard input}: Assembler messages:
>> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
>> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
>> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
>> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
>> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>> [snip]
>>
>> * It can build on armv7a, but doesn't work on runtime, cause
>>    displaying problems or ephiphany hang.
>>
>> [YOCTO #9474]
>>
>> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
>> ---
>>   meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>>   1 file changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>> index bdbcbea..23ead72 100644
>> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>>   EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>>   EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>>
>> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
>> +# ARM JIT code does not build on ARMv4/5/6 anymore
>>   EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>>   EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>> +
>> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
>> +# displaying problems or ephiphany hang.
>> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
>
> this should work fine with thumb2 e.g. so this is a little broad brush
> here to diable it across
> all armv7

Why do you think that changing the instruction set (to thumb2) would
make the JIT work any better?

If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
the platform that inspired the original bug report.

>
>>
>>   # binutils 2.25.1 has a bug on aarch64:
>>   # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
>> --
>> 2.7.4
>>
>> --
>> _______________________________________________
>> Openembedded-core mailing list
>> Openembedded-core@lists.openembedded.org
>> http://lists.openembedded.org/mailman/listinfo/openembedded-core


-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Tristan Van Berkom]

On Thu, 2016-05-19 at 05:16 +0200, Gary Thomas wrote:
[...]
> Why do you think that changing the instruction set (to thumb2) would
> make the JIT work any better?
> 
> If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
> the platform that inspired the original bug report.

FWIW, I ran into this issue as well the first time I tried building
webkitgtk with a compiler tuned for armv7a.

I did not try many variations but was able to build with a machine
configuration with DEFAULTTUNE set to armv7ahf-neon (hard float with
neon simd).

This link seems to also provide some more information on what
configurations can be used to build webkitgtk on arm:
    http://patchwork.openembedded.org/patch/105081/

Cheers,
    -Tristan

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Khem Raj]

[-- Attachment #1: Type: text/plain, Size: 4114 bytes --]


> On May 18, 2016, at 8:16 PM, Gary Thomas <gary@mlbassoc.com> wrote:
> 
> On 2016-05-18 22:07, Khem Raj wrote:
>> On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
>>> * It doesn't build on armv4:
>>> {standard input}: Assembler messages:
>>> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
>>> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
>>> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
>>> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
>>> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>> [snip]
>>> 
>>> * It can build on armv7a, but doesn't work on runtime, cause
>>>   displaying problems or ephiphany hang.
>>> 
>>> [YOCTO #9474]
>>> 
>>> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
>>> ---
>>>  meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>> 
>>> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>> index bdbcbea..23ead72 100644
>>> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>>>  EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>>>  EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>>> 
>>> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
>>> +# ARM JIT code does not build on ARMv4/5/6 anymore
>>>  EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>>>  EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>>> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>>> +
>>> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
>>> +# displaying problems or ephiphany hang.
>>> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
>> 
>> this should work fine with thumb2 e.g. so this is a little broad brush
>> here to diable it across
>> all armv7
> 
> Why do you think that changing the instruction set (to thumb2) would
> make the JIT work any better?

Assembler implementation for JIT has always worked better with thumb2.

> 
> If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
> the platform that inspired the original bug report.


Try adding

ARM_INSTRUCTION_SET_armv7a = “thumb"
ARM_INSTRUCTION_SET_armv7ve = “thumb"

in the webkitgtk recipe and see if it helps

> 
>> 
>>> 
>>>  # binutils 2.25.1 has a bug on aarch64:
>>>  # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
>>> --
>>> 2.7.4
>>> 
>>> --
>>> _______________________________________________
>>> Openembedded-core mailing list
>>> Openembedded-core@lists.openembedded.org
>>> http://lists.openembedded.org/mailman/listinfo/openembedded-core
> 
> 
> --
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
> --
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core


[-- Attachment #2: Message signed with OpenPGP using GPGMail --]
[-- Type: application/pgp-signature, Size: 211 bytes --]

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Robert Yang]

On 05/19/2016 01:28 PM, Khem Raj wrote:
>
>> On May 18, 2016, at 8:16 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>>
>> On 2016-05-18 22:07, Khem Raj wrote:
>>> On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
>>>> * It doesn't build on armv4:
>>>> {standard input}: Assembler messages:
>>>> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
>>>> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
>>>> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
>>>> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
>>>> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>> [snip]
>>>>
>>>> * It can build on armv7a, but doesn't work on runtime, cause
>>>>    displaying problems or ephiphany hang.
>>>>
>>>> [YOCTO #9474]
>>>>
>>>> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
>>>> ---
>>>>   meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>>>>   1 file changed, 6 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>> index bdbcbea..23ead72 100644
>>>> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>>>>   EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>>>>   EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>>>>
>>>> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
>>>> +# ARM JIT code does not build on ARMv4/5/6 anymore
>>>>   EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>>>>   EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>>>> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>>>> +
>>>> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
>>>> +# displaying problems or ephiphany hang.
>>>> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
>>>
>>> this should work fine with thumb2 e.g. so this is a little broad brush
>>> here to diable it across
>>> all armv7
>>
>> Why do you think that changing the instruction set (to thumb2) would
>> make the JIT work any better?
>
> Assembler implementation for JIT has always worked better with thumb2.
>
>>
>> If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
>> the platform that inspired the original bug report.
>
>
> Try adding
>
> ARM_INSTRUCTION_SET_armv7a = “thumb"
> ARM_INSTRUCTION_SET_armv7ve = “thumb"
>
> in the webkitgtk recipe and see if it helps


Hi,

To be clear, webkitgtk can build on armv7a, but doesn't work on
runtime, cause displaying problems or ephiphany hang.

// Robert


>
>>
>>>
>>>>
>>>>   # binutils 2.25.1 has a bug on aarch64:
>>>>   # https://sourceware.org/bugzilla/show_bug.cgi?id=18430
>>>> --
>>>> 2.7.4
>>>>
>>>> --
>>>> _______________________________________________
>>>> Openembedded-core mailing list
>>>> Openembedded-core@lists.openembedded.org
>>>> http://lists.openembedded.org/mailman/listinfo/openembedded-core
>>
>>
>> --
>> ------------------------------------------------------------
>> Gary Thomas                 |  Consulting for the
>> MLB Associates              |    Embedded world
>> ------------------------------------------------------------
>> --
>> _______________________________________________
>> Openembedded-core mailing list
>> Openembedded-core@lists.openembedded.org
>> http://lists.openembedded.org/mailman/listinfo/openembedded-core
>
>
>

Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Khem Raj]

[-- Attachment #1: Type: text/plain, Size: 3754 bytes --]


> On May 18, 2016, at 10:38 PM, Robert Yang <liezhi.yang@windriver.com> wrote:
> 
> 
> 
> On 05/19/2016 01:28 PM, Khem Raj wrote:
>> 
>>> On May 18, 2016, at 8:16 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>>> 
>>> On 2016-05-18 22:07, Khem Raj wrote:
>>>> On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
>>>>> * It doesn't build on armv4:
>>>>> {standard input}: Assembler messages:
>>>>> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>>> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
>>>>> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
>>>>> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
>>>>> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>>> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
>>>>> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>>> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>>> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>>> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>>> [snip]
>>>>> 
>>>>> * It can build on armv7a, but doesn't work on runtime, cause
>>>>>   displaying problems or ephiphany hang.
>>>>> 
>>>>> [YOCTO #9474]
>>>>> 
>>>>> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
>>>>> ---
>>>>>  meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>>>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>>> 
>>>>> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>> index bdbcbea..23ead72 100644
>>>>> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>>>>>  EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>>>>>  EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>>>>> 
>>>>> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
>>>>> +# ARM JIT code does not build on ARMv4/5/6 anymore
>>>>>  EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>>>>>  EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>>>>> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>>>>> +
>>>>> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
>>>>> +# displaying problems or ephiphany hang.
>>>>> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
>>>> 
>>>> this should work fine with thumb2 e.g. so this is a little broad brush
>>>> here to diable it across
>>>> all armv7
>>> 
>>> Why do you think that changing the instruction set (to thumb2) would
>>> make the JIT work any better?
>> 
>> Assembler implementation for JIT has always worked better with thumb2.
>> 
>>> 
>>> If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
>>> the platform that inspired the original bug report.
>> 
>> 
>> Try adding
>> 
>> ARM_INSTRUCTION_SET_armv7a = “thumb"
>> ARM_INSTRUCTION_SET_armv7ve = “thumb"
>> 
>> in the webkitgtk recipe and see if it helps
> 
> 
> Hi,
> 
> To be clear, webkitgtk can build on armv7a, but doesn't work on
> runtime, cause displaying problems or ephiphany hang.

We are talking runtime here.

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Re: [PATCH 1/1] webkitgtk: turn off JIT on armv4 and armv7a

[Gary Thomas]

On 2016-05-19 07:42, Khem Raj wrote:
>
>> On May 18, 2016, at 10:38 PM, Robert Yang <liezhi.yang@windriver.com> wrote:
>>
>>
>>
>> On 05/19/2016 01:28 PM, Khem Raj wrote:
>>>
>>>> On May 18, 2016, at 8:16 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>>>>
>>>> On 2016-05-18 22:07, Khem Raj wrote:
>>>>> On Wed, May 18, 2016 at 2:03 AM, Robert Yang <liezhi.yang@windriver.com> wrote:
>>>>>> * It doesn't build on armv4:
>>>>>> {standard input}: Assembler messages:
>>>>>> {standard input}:52: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>>>> {standard input}:126: Error: selected processor does not support `bkpt #0' in ARM mode
>>>>>> {standard input}:128: Error: selected processor does not support `blx r0' in ARM mode
>>>>>> {standard input}:134: Error: selected processor does not support `bkpt #0' in ARM mode
>>>>>> {standard input}:185: Error: selected processor does not support `blx llint_throw_stack_overflow_error' in ARM mode
>>>>>> {standard input}:256: Error: selected processor does not support `blx r4' in ARM mode
>>>>>> {standard input}:310: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>>>> {standard input}:311: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_enter-.LrelativePCBase' in ARM mode
>>>>>> {standard input}:315: Error: selected processor does not support `movw r2,#:lower16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>>>> {standard input}:316: Error: selected processor does not support `movt r2,#:upper16:.Lllint_op_get_scope-.LrelativePCBase' in ARM mode
>>>>>> [snip]
>>>>>>
>>>>>> * It can build on armv7a, but doesn't work on runtime, cause
>>>>>>    displaying problems or ephiphany hang.
>>>>>>
>>>>>> [YOCTO #9474]
>>>>>>
>>>>>> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
>>>>>> ---
>>>>>>   meta/recipes-sato/webkit/webkitgtk_2.12.1.bb | 7 ++++++-
>>>>>>   1 file changed, 6 insertions(+), 1 deletion(-)
>>>>>>
>>>>>> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>>> index bdbcbea..23ead72 100644
>>>>>> --- a/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>>> +++ b/meta/recipes-sato/webkit/webkitgtk_2.12.1.bb
>>>>>> @@ -62,9 +62,14 @@ EXTRA_OECMAKE = " \
>>>>>>   EXTRA_OECMAKE_append_powerpc = " -DENABLE_JIT=OFF "
>>>>>>   EXTRA_OECMAKE_append_powerpc64 = " -DENABLE_JIT=OFF "
>>>>>>
>>>>>> -# ARM JIT code does not build on ARMv5/6 anymore, apparently they test only on v7 onwards
>>>>>> +# ARM JIT code does not build on ARMv4/5/6 anymore
>>>>>>   EXTRA_OECMAKE_append_armv5 = " -DENABLE_JIT=OFF "
>>>>>>   EXTRA_OECMAKE_append_armv6 = " -DENABLE_JIT=OFF "
>>>>>> +EXTRA_OECMAKE_append_armv4 = " -DENABLE_JIT=OFF "
>>>>>> +
>>>>>> +# ARM JIT can build on armv7a, but doesnt' work on runtime, cause
>>>>>> +# displaying problems or ephiphany hang.
>>>>>> +EXTRA_OECMAKE_append_armv7a = " -DENABLE_JIT=OFF "
>>>>>
>>>>> this should work fine with thumb2 e.g. so this is a little broad brush
>>>>> here to diable it across
>>>>> all armv7
>>>>
>>>> Why do you think that changing the instruction set (to thumb2) would
>>>> make the JIT work any better?
>>>
>>> Assembler implementation for JIT has always worked better with thumb2.
>>>
>>>>
>>>> If you tell me how, I'll test it on my i.MX6 (Cortex-A9) which is
>>>> the platform that inspired the original bug report.
>>>
>>>
>>> Try adding
>>>
>>> ARM_INSTRUCTION_SET_armv7a = “thumb"
>>> ARM_INSTRUCTION_SET_armv7ve = “thumb"
>>>
>>> in the webkitgtk recipe and see if it helps
>>
>>
>> Hi,
>>
>> To be clear, webkitgtk can build on armv7a, but doesn't work on
>> runtime, cause displaying problems or ephiphany hang.
>
> We are talking runtime here.
>

Sorry, still fails - tested on my i.MX6 target.  Visiting www.google.com
fails immediately.  Looks like the JIT should be disabled for armv7

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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