1507052 - ppc64le tries to build x86 sse webrtc code

Status: RESOLVED DUPLICATE of bug 1465274

(Core :: WebRTC, defect, P5)

Description

[Joel]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3602.2 Safari/537.36




Expected results:

Building Firefox from mozilla central on Linux ppc64le (Ubuntu Cosmic):

2:50.74 In file included from /scratch/joel/gecko/obj-powerpc64le-unknown-linux-gnu/media/webrtc/trunk/webrtc/modules/audio_processing/audio_processing_sse2_gn/Unified_cpp_o_processing_sse2_gn0.cpp:2:
 2:50.74 In file included from /scratch/joel/gecko/media/webrtc/trunk/webrtc/modules/audio_processing/aec/aec_core_sse2.cc:15:
 2:50.74 In file included from /usr/include/clang/7.0.0/include/emmintrin.h:27:
 2:50.74 In file included from /usr/include/clang/7.0.0/include/xmmintrin.h:27:
 2:50.74 /usr/include/clang/7.0.0/include/mmintrin.h:47:5: error: use of undeclared identifier '__builtin_ia32_emms'; did you mean '__builtin_isless'?
 2:50.74     __builtin_ia32_emms();
 2:50.74     ^
 2:50.74 /usr/include/clang/7.0.0/include/mmintrin.h:47:5: note: '__builtin_isless' declared here
 2:50.74 /usr/include/clang/7.0.0/include/mmintrin.h:47:25: error: too few arguments to function call, expected 2, have 0
 2:50.74     __builtin_ia32_emms();
 2:50.74                         ^
 2:50.74 /usr/include/clang/7.0.0/include/mmintrin.h:64:19: error: use of undeclared identifier '__builtin_ia32_vec_init_v2si'
 2:50.75     return (__m64)__builtin_ia32_vec_init_v2si(__i, 0);
 2:50.75                   ^


Webrtc needs to be told not to include these files on non-x86 platforms.

Comment 1

[Joel]

Might be related to https://bugzilla.mozilla.org/show_bug.cgi?id=1376873

We need to add configs for ppc to media/webrtc/gn-configs/

Comment 2

[Joel]

This may describe how to do so: https://bugzilla.mozilla.org/show_bug.cgi?id=1437670

Comment 3

[Dan Minor [:dminor]]

Yes, unfortunately you will have to regenerate json files for this platform after the webrtc.org update. Please let me know if you need any help with the process. I imagine the most difficult part will be to get a version of gn that runs on your platform.

Comment 4

[Cameron Kaiser [:spectre]]

I think this was fixed by bug 1465274 and I continue to build regularly on Fedora ppc64le without seeing the problem recur, so I'm going to dupe this. Advise if otherwise.