[Android] eventfd in NDK v7b/c

[Edward Wang]

On 12-04-20 09:54 AM, XilasZ wrote:
>
>     I just found this commit in the Android NDK repository. It might be
>     related to your issue.
>
>     https://github.com/android/platform_development/commit/e43487b854d3fbcbdd850f2d448136f4853419b1
>
>
> yep, that's it, we need a workaround to keep the compatibility with 
> 2.1/2.2, or else use older ndk.
>
> edward, can you check on 2.1 with ndk 7c ?
>
2.1 with NDK 7c without deleting eventfd:

E/VLC/LibVLC( 1688): Can't load vlcjni library: 
java.lang.UnsatisfiedLinkError: Library vlcjni not found

2.1 with NDK 7c after deleting eventfd:

D/VLC/JNI/main( 1733): JNI interface loaded.
V/VLC/LibVLC( 1733): Initializing LibVLC
I/DEBUG   (  958): *** *** *** *** *** *** *** *** *** *** *** *** *** 
*** *** ***
I/DEBUG   (  958): Build fingerprint: 
'MOTO/MBTCA/sesame/XT300:2.1-update1/SESLA_U3_01.71.0/110110:user/release-keys'
I/DEBUG   (  958): pid: 1733, tid: 1733 >>> org.videolan.vlc <<<
I/DEBUG   (  958): signal 4 (SIGILL), fault addr 4237be3c
I/DEBUG   (  958):  r0 423640a0  r1 7ece77ac  r2 42bccdac  r3 4237be38
I/DEBUG   (  958):  r4 00000000  r5 42bccdac  r6 002ed088  r7 002ed018
I/DEBUG   (  958):  r8 7ece78e8  r9 2bafa844  10 0000000e  fp 7ece794c
I/DEBUG   (  958):  ip 00002ba0  sp 7ece7784  lr 423652e4  pc 4237be3c  
cpsr 60000010
I/DEBUG   (  958):          #00  pc 0037be3c  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):          #01  lr 423652e4  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958): stack:
I/DEBUG   (  958):     7ece7744  6d07cf9c  /system/lib/libdvm.so
I/DEBUG   (  958):     7ece7748  0028159c  [heap]
I/DEBUG   (  958):     7ece774c  0028163c  [heap]
I/DEBUG   (  958):     7ece7750  2bd7d608  
/dev/ashmem/dalvik-LinearAlloc (deleted)
I/DEBUG   (  958):     7ece7754  6d0550e5  /system/lib/libdvm.so
I/DEBUG   (  958):     7ece7758  2bd7d608  
/dev/ashmem/dalvik-LinearAlloc (deleted)
I/DEBUG   (  958):     7ece775c  0014e5e0  [heap]
I/DEBUG   (  958):     7ece7760  2deee758  
/dev/ashmem/mspace/dalvik-heap/2 (deleted)
I/DEBUG   (  958):     7ece7764  6d055e4b  /system/lib/libdvm.so
I/DEBUG   (  958):     7ece7768  0001234c  [heap]
I/DEBUG   (  958):     7ece776c  6fe0f3f0  /system/lib/libc.so
I/DEBUG   (  958):     7ece7770  00000000
I/DEBUG   (  958):     7ece7774  6fe0f300  /system/lib/libc.so
I/DEBUG   (  958):     7ece7778  df002777
I/DEBUG   (  958):     7ece777c  e3a070ad
I/DEBUG   (  958):     7ece7780  0028163c  [heap]
I/DEBUG   (  958): #00 7ece7784  00000000
I/DEBUG   (  958):     7ece7788  42bccdac  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece778c  002ed088  [heap]
I/DEBUG   (  958):     7ece7790  002ed018  [heap]
I/DEBUG   (  958):     7ece7794  7ece78e8  [stack]
I/DEBUG   (  958):     7ece7798  2bafa844
I/DEBUG   (  958):     7ece779c  0000000e
I/DEBUG   (  958):     7ece77a0  7ece794c  [stack]
I/DEBUG   (  958):     7ece77a4  423652e4  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77a8  7ece78e8  [stack]
I/DEBUG   (  958):     7ece77ac  00000000
I/DEBUG   (  958):     7ece77b0  42ba6614  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77b4  42363ea0  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77b8  42ba6614  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77bc  42363f0c  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77c0  42ba6614  
/data/data/org.videolan.vlc/lib/libvlcjni.so
I/DEBUG   (  958):     7ece77c4  002ed088  [heap]
I/DEBUG   (  958):     7ece77c8  002ed088  [heap]

It only works if I use platforms/android-5 instead of the broken 
platforms/android-9.

Regards,
     Edward Wang