- # For hard support: http://blog.alexrp.com/2014/02/18/android-hard-float-support/
- # "First, to utilize the hard float ABI, you must either compile every last component of your application
- # as hard float (the -mhard-float GCC/Clang switch), or mark individual functions with the appropriate
- # __attribute__ to indicate the desired ABI. For example, to mark a function so that it’s called with the
- # soft float ABI, stick __attribute__((pcs("aapcs"))) on it.
- # Note that the NDK will link to a libm which uses the aforementioned attribute on all of its functions.
- # This means that if you use libm functions a lot, you’re not likely to get much of a boost in those places.
- # The way to fix this is to add -mhard-float -D_NDK_MATH_NO_SOFTFP=1 to your GCC/Clang command line. Then
- # add -lm_hard to your linker command line (or -Wl,-lm_hard if you just invoke GCC/Clang to link). This will
- # make your application link statically to a libm compiled for the hard float ABI. The only downside of this
- # is that your application will increase somewhat in size."
- CFLAGS+=" -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch"
- LDFLAGS+=" -march=armv7-a -Wl,--no-warn-mismatch"
+ CFLAGS+=" -march=armv7-a -mfpu=neon -mfloat-abi=softfp"
+ # "first flag instructs the linker to pick libgcc.a, libgcov.a, and
+ # crt*.o, which are tailored for armv7-a"
+ # - https://developer.android.com/ndk/guides/standalone_toolchain.html
+ LDFLAGS+=" -march=armv7-a -Wl,--fix-cortex-a8"