diff mbox

[1/2] package/freerdp: do not use Neon extensions when not available

Message ID dc7aed907743824f29e6000e45e01388ae8cf0dd.1419704115.git.yann.morin.1998@free.fr
State Accepted
Headers show

Commit Message

Yann E. MORIN Dec. 27, 2014, 6:16 p.m. UTC
FreeRDP mis-detects the CPU, and may enable Neon extensions when it
should not. Not all ARM processors have Neon extensions.

Heck, what's more, none non-ARM processor has Neon extensions!
The regexp to detect the CPU is borked:  'arm*'  will also match 'arc'
as well as 'arm'.

Do not let FreeRDP try to decide if it can use Neon extensions, we have
a Kconfig option for that, that we can use to force FreeRDP to use it or
not.

Should fix:
    http://autobuild.buildroot.org/results/d4a/d4a61e686cf11d993d02ece0c4e2835a926603c2/
    http://autobuild.buildroot.org/results/234/2349d40ef8d658ab1cd7332eb1b42a75afcd423f/
   ...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

---
Note: fixing the regexp would be nice, and can be sent upstream, but now
we force use or not of Neon, we can do without further patching FreeRDP.
---
 package/freerdp/freerdp.mk | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Peter Korsgaard Dec. 28, 2014, 11:31 a.m. UTC | #1
>>>>> "Yann" == Yann E MORIN <yann.morin.1998@free.fr> writes:

 > FreeRDP mis-detects the CPU, and may enable Neon extensions when it
 > should not. Not all ARM processors have Neon extensions.

 > Heck, what's more, none non-ARM processor has Neon extensions!
 > The regexp to detect the CPU is borked:  'arm*'  will also match 'arc'
 > as well as 'arm'.

Huh, how does arm* march arc?
Yann E. MORIN Dec. 28, 2014, 11:33 a.m. UTC | #2
Peter, All,

On 2014-12-28 12:31 +0100, Peter Korsgaard spake thusly:
> >>>>> "Yann" == Yann E MORIN <yann.morin.1998@free.fr> writes:
> 
>  > FreeRDP mis-detects the CPU, and may enable Neon extensions when it
>  > should not. Not all ARM processors have Neon extensions.
> 
>  > Heck, what's more, none non-ARM processor has Neon extensions!
>  > The regexp to detect the CPU is borked:  'arm*'  will also match 'arc'
>  > as well as 'arm'.
> 
> Huh, how does arm* march arc?

Already answered on IRC, but for the records: this is not a glob, this
is a regexp.

Regards,
Yann E. MORIN.
Peter Korsgaard Dec. 28, 2014, 11:37 a.m. UTC | #3
>>>>> "Yann" == Yann E MORIN <yann.morin.1998@free.fr> writes:

Hi,

>> > Heck, what's more, none non-ARM processor has Neon extensions!
 >> > The regexp to detect the CPU is borked:  'arm*'  will also match 'arc'
 >> > as well as 'arm'.
 >> 
 >> Huh, how does arm* march arc?

 > Already answered on IRC, but for the records: this is not a glob, this
 > is a regexp.

Yes, thanks.
diff mbox

Patch

diff --git a/package/freerdp/freerdp.mk b/package/freerdp/freerdp.mk
index d2e51f8..c9396b5 100644
--- a/package/freerdp/freerdp.mk
+++ b/package/freerdp/freerdp.mk
@@ -63,4 +63,10 @@  else
 FREERDP_CONF_OPTS += -DWITH_XV=OFF
 endif
 
+ifeq ($(BR2_ARM_CPU_HAS_NEON),y)
+FREERDP_CONF_OPTS += -DWITH_NEON=ON
+else
+FREERDP_CONF_OPTS += -DWITH_NEON=OFF
+endif
+
 $(eval $(cmake-package))