how can I compile and debug a 32bit shared object on an arm64-v8a platform?

[James Manning]

I have a bunch of datastuctures with embedded 32bit pointers, and I'm looking to compile my c/c++ library as a 32bit binary for arm64-v8a.
I'm doing this so I don't have to worry about patching datastructures after they've been loaded in from a binary file.

I seem to be able to NDK r10 compile .o files using APP_ABI:=arm64-v8a and clflag: -mabi=ilp32
however the linker just crashes after I add -mabi=ilp32 to the linker command line.

Is this solution feasible? and can I debug like this on say a nexus9? also if it is feasible what linker options am I missing to get this to work?

- Regards James M

[David Turner]

As far as I know, ilp32 is not supported on 64-bit Android platforms.

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[James Manning]

thanks, I found a way to native debug a armeabi shared object on my nexus 9 so I don't need the ilp32 anymore.

[Vidit s]

You can use 32built lib as it is on 64 bit device.

Regards
Vidit

[Robert Barrows]

Could you share a link with how you were able to achieve this?