ci: align Android .so LOAD segments to 16 KB pages - #2
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Android 15+ devices can boot with a 16 KB page size. The Go linker defaults to 4 KB max-page-size, so libepix_snowflake.so fails the 16 KB alignment check and Android flags the whole app. Pass max-page-size=16384 to the external linker for the android build. Verified locally: llvm-readelf -l shows all LOAD segments at 0x4000 with the flag (0x1000 without).
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The v0.2.0 release's libepix_snowflake.so has 4 KB aligned LOAD segments, so EpixNet's Android app trips the 16 KB page-size compatibility check on Android 15+ devices (the emulator shows an "App isn't 16 KB compatible" dialog naming libepix_snowflake.so: LOAD segment not aligned).
The Go external linker defaults to 4 KB max-page-size for android/arm64. Passing -Wl,-z,max-page-size=16384 through -extldflags fixes it.
Verified locally with NDK r30 and Go 1.26: llvm-readelf -l on the built .so shows every LOAD segment aligned to 0x4000 with the flag, 0x1000 without.
After merging this needs a new tag/release, then a bump of iptproxy.rev and iptproxy.sha256 in EpixNet so the Android build picks the fixed library up.