[FFmpeg-devel] [PATCH] swresample/arm: avoid conditional branch to PLT in THUMB-2.

[Rahul Chaudhry]

When compiling for THUMB-2, the conditional branch to PLT results in a
R_ARM_THM_JUMP19 relocation. Some linkers don't support this relocation
in THUMB-2 (ld.gold), while others can end up truncating the relocation
to fit (ld.bfd).

Adding an "it eq" before the branch converts it into an unconditional
branch, which uses R_ARM_THM_JUMP24 relocation that has a range of 16MB.

See https://github.com/android-ndk/ndk/issues/337 for background.

The current workaround is to disable neon during gstreamer build,
which is not optimal and can be reverted after this patch.

Rahul
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