[Bug 795190] New: android x86_64 fails to link with possible overflows for relocations in custom assembly

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=795190

            Bug ID: 795190
           Summary: android x86_64 fails to link with possible overflows
                    for relocations in custom assembly
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-libav
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: ystreet00 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Linking an android application including libav (e.g. the gstplayer android
example) fails to link for x86_64 with the following error.

Compiling against v23 of the Android SDK with v26.0.2 of the build tools
targeting android-15.

A quick look into fixing this involves fixing the assembly to be more PIC aware
and use the appropriate ELF offset symbols/tables.

Log:

/home/matt/Projects/cerbero/build/android-ndk-r16/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld.gold:
error:
/home/matt/Projects/cerbero/build/dist/android_universal/x86_64/lib/libavcodec.a(simple_idct10.o):
requires dynamic R_X86_64_PC32 reloc against 'ff_pw_32' which may overflow at
runtime; recompile with -fPIC
 
/home/matt/Projects/cerbero/build/android-ndk-r16/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld.gold:
error:
/home/matt/Projects/cerbero/build/dist/android_universal/x86_64/lib/libavcodec.a(vc1dsp_loopfilter.o):
requires dynamic R_X86_64_PC32 reloc against 'ff_pw_5' which may overflow at
runtime; recompile with -fPIC
 
/home/matt/Projects/cerbero/build/android-ndk-r16/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld.gold:
error:
/home/matt/Projects/cerbero/build/dist/android_universal/x86_64/lib/libavcodec.a(vc1dsp_mc.o):
requires dynamic R_X86_64_PC32 reloc against 'ff_pw_9' which may overflow at
runtime; recompile with -fPIC
 
/home/matt/Projects/cerbero/build/android-ndk-r16/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld.gold:
error:
/home/matt/Projects/cerbero/build/dist/android_universal/x86_64/lib/libavcodec.a(vc1dsp_mmx.o):
requires dynamic R_X86_64_PC32 reloc against 'ff_pw_9' which may overflow at
runtime; recompile with -fPIC
 
/home/matt/Projects/cerbero/build/android-ndk-r16/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld.gold:
error:
/home/matt/Projects/cerbero/build/dist/android_universal/x86_64/lib/libavcodec.a(vc1dsp_mmx.o):
requires dynamic R_X86_64_PC32 reloc against 'ff_pw_9' which may overflow at
runtime; recompile with -fPIC

and 100 other symbols that follow the same pattern

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