1) Add ldexp. ldexp used to co-exist in both libc.so and libm.so until
the removal from libm.so in ICS. Unfortunately the sole copy of libm_hard.a
in NDK was compiled from JB source and miss ldexp. Code compiled with
hard-float using ldexp may use libc.so which follows soft-float and misbehave
2) Turns out the following (all in fpclassify.o) also exists in recent libc.so
too. Add them in libm_hard.a as well:
__fpclassifyd
__fpclassifyf
__fpclassifyl
__isfinitef
__isfinite
__isfinitel
__isinff
__isinf
__isinfl
__isnanl
__isnormalf
__isnormal
__isnormall
isinf
isnan
isnanf
Change-Id: Ia157fb2911341988de102e55d0c6f6141a9c3dda
A math library compiled with -mhard-float. Build instructions:
1. cd to a recent Android source tree: bionic.git
fbefb252b09634114977dbd1b48dd42bb2629b83 (internal) in this case
2. Temporarily remove "-mfloat-abi=softfp" from build/core/combo/arch/arm/armv7*
and build/core/combo/TARGET_linux-arm.mk
3. Temporarily add "-mhard-float -mfloat-abi=hard" to LOCAL_CFLAGS
for libm.a in bionic/libm/Android.mk
4. make -B -j32 out/target/product/generic/obj/STATIC_LIBRARIES/libm_intermediates/libm.a
5. Rename it
Change-Id: I107eea48af75e97b448862cfc7aae2e8f8911a63
