| View previous topic :: View next topic |
| Author |
Message |
DeIM
Guru
Joined: 11 Apr 2006
Posts: 429
|
 Posted: Thu Jul 02, 2020 9:25 am Post subject: armv7l - no CPU_FLAGS_ARM used? |
 |
|
Hi, just wondering - I wanna emerge ffmpeg and there is :
| Code: | | [ebuild N ] media-video/ffmpeg-4.2.3:0/56.58.58::gentoo USE="bzip2 encode fdk gpl iconv libsoxr lzma network postproc threads vpx x264 x265 zlib -X -alsa -amr -amrenc (-appkit) -bluray -bs2b -cdio -chromaprint -chromium -codec2 -cpudetection (-cuda) -dav1d -debug -doc -flite -fontconfig (-frei0r) -fribidi -gcrypt -gme -gmp -gnutls -gsm -hardcoded-tables -iec61883 (-ieee1394) -jack -jpeg2k -kvazaar -ladspa -libaom -libaribb24 -libass -libcaca -libdrm -libilbc -libressl -librtmp -libtesseract -libv4l -libxml2 -lv2 (-mipsdspr1) (-mipsdspr2) (-mipsfpu) -mmal -modplug -mp3 -openal (-opencl) -opengl -openh264 -openssl -opus -oss -pic -pulseaudio -rubberband -samba -sdl -snappy -speex -srt -ssh -static-libs -svg -test -theora -truetype -twolame -v4l (-vaapi) (-vdpau) -vidstab -vorbis -wavpack -webp -xvid -zeromq -zimg -zvbi" CPU_FLAGS_ARM="(-neon) (-thumb) (-thumb2) (-v6) (-v8) (-vfp) (-vfpv3)" FFTOOLS="aviocat cws2fws ffescape ffeval ffhash fourcc2pixfmt graph2dot ismindex pktdumper qt-faststart sidxindex trasher" VIDEO_CARDS="(-nvidia)" |
in make.conf:
| Code: | | CPU_FLAGS_ARM="edsp neon thumb vfp vfpv3 vfpv4 vfp-d32 v4 v5 v6 v7 thumb2" |
| Code: | cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 22.85
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
... |
| Code: | | lrwxrwxrwx 1 root root 49 26. čen 09.59 make.profile -> ../../usr/portage/profiles/default/linux/arm/17.0 |
Does it mean no SIMD would be used at all?
Thanks in advance  |
|
| Back to top |
|
 |
DeIM
Guru
Joined: 11 Apr 2006
Posts: 429
|
| Posted: Thu Jul 02, 2020 9:54 am Post subject: |
|
|
| Seem I need to change to armv7a (dev) profile |
|
| Back to top |
|
|
fedeliallalinea
Administrator
Joined: 08 Mar 2003
Posts: 30965
Location: here
|
| Posted: Thu Jul 02, 2020 9:58 am Post subject: |
|
|
Use flag in parentheses mean they're masked by profile (arm).
EDIT: as DeIM say these flag are unmasked in armv7a profile
| Code: | $ grep thumb2 * -r
armv7a/use.force:cpu_flags_arm_thumb2
armv7a/use.mask:-cpu_flags_arm_thumb2 |
_________________
Questions are guaranteed in life; Answers aren't. |
|
| Back to top |
|
|
NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54312
Location: 56N 3W
|
| Posted: Thu Jul 02, 2020 4:13 pm Post subject: |
|
|
Moved from Portage & Programming to Gentoo on ARM.
Its an ARM question
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
|
| Back to top |
|
|
|
Gentoo on ARM
