android builds failing due to gcc 4.8 failing to compile ffmpeg

[Naresh Kamboju]

Following big.LITTLE MP builds failed:
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=317
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=316
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=315
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=314
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-mp/#build=313

seems to be problem with gcc 4.8 issue
https://android-build.linaro.org/jenkins/job/linaro-android_vexpress-linaro-mp/317/parsed_console/?

/mnt/jenkins/workspace/linaro-android_vexpress-linaro-mp/build/external/ffmpeg/libavcodec/arm/dca.h:36:5: error: can't find a register in class 'CORE_REGS' while reloading 'asm'
/mnt/jenkins/workspace/linaro-android_vexpress-linaro-mp/build/external/ffmpeg/libavcodec/arm/dca.h:36:5: error: 'asm' operand has impossible constraints
make[1]: *** [libavcodec/dca.o] Error 1
make: *** [ffmpeg] Error 2

[Soumya Basak (soumya-basak)]

observed the same issue with the following builds.

Linaro-android member-ti-panda builds:

https://android-build.linaro.org/jenkins/job/linaro-android-member-ti_panda-linaro/

output console: https://android-build.linaro.org/jenkins/job/linaro-android-member-ti_panda-linaro/317/console

Linaro-android member st_snowball builds:

https://android-build.linaro.org/jenkins/job/linaro-android-member-ste_snowball-linaro-jb/

console : https://android-build.linaro.org/jenkins/job/linaro-android-member-ste_snowball-linaro-jb/326/console

[Bernhard Rosenkraenzer (berolinux)]

Changing to "Fix Committed" in linaro-android (we've updated ffmpeg with different code), but leaving it open on the gcc-linaro side (why gcc 4.7 could find registers to work with and 4.8 can't deserves some investigation).

[vishal (vishalbhoj)]

ffmpeg seems to still fail to compile on android-build:
https://android-build.linaro.org/jenkins/job/linaro-android_linux-linaro-arndale/103/parsed_console/?

[Naresh Kamboju (naresh-kamboju)]

following build also failed:
ffmpeg seems to still fail to compile on android-build:
https://android-build.linaro.org/jenkins/job/linaro-android-restricted_vexpress-linaro-iks/251/parsed_console/?

[Bernhard Rosenkraenzer (berolinux)]

Interesting, I can't reproduce this locally...
Relevant failure seems to be:

arm-linux-androideabi-gcc is unable to create an executable file.
C compiler test failed.

Maybe PATH is not getting set right, looking

[Bernhard Rosenkraenzer (berolinux)]

Found a way to reproduce locally.

[Bernhard Rosenkraenzer (berolinux)]

Fixed

[Bernhard Rosenkraenzer (berolinux)]

(on android side, still leaving gcc open)

[Naresh Kamboju (naresh-kamboju)]

I have downloaded big.LITTLE IKS test images from this build [1] which is using tool chain [2] and tested on vexpress-linaro build [3]

ffmpeg test failed. due to below reason
root@android:/data/local # ffmpeg
soinfo_link_image(linker.cpp:1635): could not load library "libavfilter.so.2" ne
eded by "ffmpeg"; caused by soinfo_link_image(linker.cpp:1635): could not load l
ibrary "libavformat.so.54" needed by "libavfilter.so.2"; caused by soinfo_link_i
mage(linker.cpp:1635): could not load library "libavcodec.so.54" needed by "liba
vformat.so.54"; caused by soinfo_relocate(linker.cpp:975): cannot locate symbol
"__popcountsi2" referenced by "libavcodec.so.54"...CANNOT LINK EXECUTABLE

Summary ..
Total Tests = 30
Tests Passed = 22
Tests Failed = 8 [ [a] 4 perf test failed + [b] 4 ffmpeg test failed]

[a] Perf broken on linux-linaro 3.10.x kernel
 https://bugs.launchpad.net/linaro-big-little-system/+bug/1183821

[b] android builds failing due to gcc 4.8 failing to compile ffmpeg
https://bugs.launchpad.net/linaro-android/+bug/1189357

[1] https://android-build.linaro.org/builds/~linaro-android-restricted/test-private-test-suite/#build=60

- tests_userdata.tar.bz2
- tests_system.tar.bz2

[2]TOOLCHAIN_URL=https://releases.linaro.org/latest/components/toolchain/binaries/gcc-linaro-arm-linux-gnueabihf-4.8-2013.05_linux.tar.bz2
TOOLCHAIN_TRIPLET=arm-linux-gnueabihf-

[3] https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=7

[4] TARGET_TOOLS_PREFIX=prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8-linaro/bin/arm-linux-androideabi-
TOOLCHAIN_TRIPLET=arm-linux-androideabi

Test execution log:
[4] https://pastebin.linaro.org/view/0ee0b1eb

ffmpeg log:
[5] https://pastebin.linaro.org/view/762e0bb0

[Kumar Venkataramanan (venkataramanan-kumar)]

This Bug is now tracked Via https://bugs.linaro.org/show_bug.cgi?id=405