Add versions to libm.so symbols

Bug: http://b/20139821
Change-Id: Ifdfcac62d59eb8f0985990aa8512046ecb87449e
(cherry picked from commit 636f5ddddcd9e0bcfc7139b0905ebc92d4adc40a)

2 files changed, 382 insertions, 0 deletions

diff --git a/libm/Android.mk b/libm/Android.mk
index 4a5bbad57..e919129ff 100644
--- a/libm/Android.mk
+++ b/libm/Android.mk
@@ -513,10 +513,14 @@ include $(BUILD_STATIC_LIBRARY)
 # -----------------------------------------------------------------------------
 include $(CLEAR_VARS)
 
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/libm.map
+
 # TODO: This is to work around b/19059885. Remove after root cause is fixed
 LOCAL_LDFLAGS_arm := -Wl,--hash-style=both
 LOCAL_LDFLAGS_x86 := -Wl,--hash-style=both
 
+LOCAL_LDFLAGS := -Wl,--version-script,$(LOCAL_PATH)/libm.map
+
 LOCAL_MODULE := libm
 LOCAL_CLANG := $(libm_clang)
 LOCAL_SYSTEM_SHARED_LIBRARIES := libc
diff --git a/libm/libm.map b/libm/libm.map
new file mode 100644
index 000000000..7f02f42f1
--- /dev/null
+++ b/libm/libm.map
@@ -0,0 +1,378 @@
+LIBC {
+  global:
+    __fe_dfl_env;
+    __signbit;
+    __signbitf;
+    __signbitl;
+    acos;
+    acosf;
+    acosh;
+    acoshf;
+    acoshl;
+    acosl;
+    asin;
+    asinf;
+    asinh;
+    asinhf;
+    asinhl;
+    asinl;
+    atan;
+    atan2;
+    atan2f;
+    atan2l;
+    atanf;
+    atanh;
+    atanhf;
+    atanhl;
+    atanl;
+    cabs;
+    cabsf;
+    cabsl;
+    cacos;
+    cacosf;
+    cacosh;
+    cacoshf;
+    carg;
+    cargf;
+    cargl;
+    casin;
+    casinf;
+    casinh;
+    casinhf;
+    catan;
+    catanf;
+    catanh;
+    catanhf;
+    cbrt;
+    cbrtf;
+    cbrtl;
+    ccos;
+    ccosf;
+    ccosh;
+    ccoshf;
+    ceil;
+    ceilf;
+    ceill;
+    cexp;
+    cexpf;
+    cimag;
+    cimagf;
+    cimagl;
+    conj;
+    conjf;
+    conjl;
+    copysign;
+    copysignf;
+    copysignl;
+    cos;
+    cosf;
+    cosh;
+    coshf;
+    coshl;
+    cosl;
+    cproj;
+    cprojf;
+    cprojl;
+    creal;
+    crealf;
+    creall;
+    csin;
+    csinf;
+    csinh;
+    csinhf;
+    csqrt;
+    csqrtf;
+    csqrtl;
+    ctan;
+    ctanf;
+    ctanh;
+    ctanhf;
+    drem;
+    dremf;
+    erf;
+    erfc;
+    erfcf;
+    erfcl;
+    erff;
+    erfl;
+    exp;
+    exp2;
+    exp2f;
+    exp2l;
+    expf;
+    expl;
+    expm1;
+    expm1f;
+    expm1l;
+    fabs;
+    fabsf;
+    fabsl;
+    fdim;
+    fdimf;
+    fdiml;
+    feclearexcept;
+    fedisableexcept;
+    feenableexcept;
+    fegetenv;
+    fegetexcept;
+    fegetexceptflag;
+    fegetround;
+    feholdexcept;
+    feraiseexcept;
+    fesetenv;
+    fesetexceptflag;
+    fesetround;
+    fetestexcept;
+    feupdateenv;
+    finite;
+    finitef;
+    floor;
+    floorf;
+    floorl;
+    fma;
+    fmaf;
+    fmal;
+    fmax;
+    fmaxf;
+    fmaxl;
+    fmin;
+    fminf;
+    fminl;
+    fmod;
+    fmodf;
+    fmodl;
+    frexp;
+    frexpf;
+    frexpl;
+    gamma;
+    gamma_r;
+    gammaf;
+    gammaf_r;
+    hypot;
+    hypotf;
+    hypotl;
+    ilogb;
+    ilogbf;
+    ilogbl;
+    j0;
+    j0f;
+    j1;
+    j1f;
+    jn;
+    jnf;
+    ldexpf;
+    ldexpl;
+    lgamma;
+    lgamma_r;
+    lgammaf;
+    lgammaf_r;
+    lgammal;
+    lgammal_r;
+    llrint;
+    llrintf;
+    llrintl;
+    llround;
+    llroundf;
+    llroundl;
+    log;
+    log10;
+    log10f;
+    log10l;
+    log1p;
+    log1pf;
+    log1pl;
+    log2;
+    log2f;
+    log2l;
+    logb;
+    logbf;
+    logbl;
+    logf;
+    logl;
+    lrint;
+    lrintf;
+    lrintl;
+    lround;
+    lroundf;
+    lroundl;
+    modf;
+    modff;
+    modfl;
+    nan;
+    nanf;
+    nanl;
+    nearbyint;
+    nearbyintf;
+    nearbyintl;
+    nextafter;
+    nextafterf;
+    nextafterl;
+    nexttoward;
+    nexttowardf;
+    nexttowardl;
+    pow;
+    powf;
+    powl;
+    remainder;
+    remainderf;
+    remainderl;
+    remquo;
+    remquof;
+    remquol;
+    rint;
+    rintf;
+    rintl;
+    round;
+    roundf;
+    roundl;
+    scalb;
+    scalbf;
+    scalbln;
+    scalblnf;
+    scalblnl;
+    scalbn;
+    scalbnf;
+    scalbnl;
+    signgam;
+    significand;
+    significandf;
+    significandl;
+    sin;
+    sincos;
+    sincosf;
+    sincosl;
+    sinf;
+    sinh;
+    sinhf;
+    sinhl;
+    sinl;
+    sqrt;
+    sqrtf;
+    sqrtl;
+    tan;
+    tanf;
+    tanh;
+    tanhf;
+    tanhl;
+    tanl;
+    tgamma;
+    tgammaf;
+    tgammal;
+    trunc;
+    truncf;
+    truncl;
+    y0;
+    y0f;
+    y1;
+    y1f;
+    yn;
+    ynf;
+  local:
+    *;
+};
+
+LIBC_PRIVATE {
+  global:
+    ___Unwind_Backtrace; # arm
+    ___Unwind_ForcedUnwind; # arm
+    ___Unwind_RaiseException; # arm
+    ___Unwind_Resume; # arm
+    ___Unwind_Resume_or_Rethrow; # arm
+    __adddf3; # arm
+    __aeabi_cdcmpeq; # arm
+    __aeabi_cdcmple; # arm
+    __aeabi_cdrcmple; # arm
+    __aeabi_cfcmpeq; # arm
+    __aeabi_cfcmple; # arm
+    __aeabi_cfrcmple; # arm
+    __aeabi_d2lz; # arm
+    __aeabi_d2uiz; # arm
+    __aeabi_d2ulz; # arm
+    __aeabi_dadd; # arm
+    __aeabi_dcmpeq; # arm
+    __aeabi_dcmpge; # arm
+    __aeabi_dcmpgt; # arm
+    __aeabi_dcmple; # arm
+    __aeabi_dcmplt; # arm
+    __aeabi_ddiv; # arm
+    __aeabi_dmul; # arm
+    __aeabi_drsub; # arm
+    __aeabi_dsub; # arm
+    __aeabi_f2d; # arm
+    __aeabi_f2lz; # arm
+    __aeabi_f2ulz; # arm
+    __aeabi_fcmpeq; # arm
+    __aeabi_fcmpge; # arm
+    __aeabi_fcmpgt; # arm
+    __aeabi_fcmple; # arm
+    __aeabi_fcmplt; # arm
+    __aeabi_i2d; # arm
+    __aeabi_l2d; # arm
+    __aeabi_ui2d; # arm
+    __aeabi_ul2d; # arm
+    __aeabi_unwind_cpp_pr0; # arm
+    __aeabi_unwind_cpp_pr1; # arm
+    __aeabi_unwind_cpp_pr2; # arm
+    __cmpdf2; # arm
+    __cmpsf2; # arm
+    __divdf3; # arm
+    __eqdf2; # arm
+    __eqsf2; # arm
+    __extendsfdf2; # arm
+    __fixdfdi; # arm mips
+    __fixsfdi; # arm mips
+    __fixunsdfdi; # arm mips
+    __fixunsdfsi; # arm
+    __fixunssfdi; # arm mips
+    __floatdidf; # arm
+    __floatsidf; # arm
+    __floatundidf; # arm
+    __floatunsidf; # arm
+    __gedf2; # arm
+    __gesf2; # arm
+    __gnu_Unwind_Backtrace; # arm
+    __gnu_unwind_execute; # arm
+    __gnu_Unwind_ForcedUnwind; # arm
+    __gnu_unwind_frame; # arm
+    __gnu_Unwind_RaiseException; # arm
+    __gnu_Unwind_Restore_VFP; # arm
+    __gnu_Unwind_Restore_VFP_D; # arm
+    __gnu_Unwind_Restore_VFP_D_16_to_31; # arm
+    __gnu_Unwind_Restore_WMMXC; # arm
+    __gnu_Unwind_Restore_WMMXD; # arm
+    __gnu_Unwind_Resume; # arm
+    __gnu_Unwind_Resume_or_Rethrow; # arm
+    __gnu_Unwind_Save_VFP; # arm
+    __gnu_Unwind_Save_VFP_D; # arm
+    __gnu_Unwind_Save_VFP_D_16_to_31; # arm
+    __gnu_Unwind_Save_WMMXC; # arm
+    __gnu_Unwind_Save_WMMXD; # arm
+    __gtdf2; # arm
+    __gtsf2; # arm
+    __ledf2; # arm
+    __lesf2; # arm
+    __ltdf2; # arm
+    __ltsf2; # arm
+    __muldc3; # arm x86 mips
+    __muldf3; # arm
+    __nedf2; # arm
+    __nesf2; # arm
+    __restore_core_regs; # arm
+    __subdf3; # arm
+    _Unwind_Backtrace; # arm
+    _Unwind_Complete; # arm
+    _Unwind_DeleteException; # arm
+    _Unwind_ForcedUnwind; # arm
+    _Unwind_GetCFA; # arm
+    _Unwind_GetDataRelBase; # arm
+    _Unwind_GetLanguageSpecificData; # arm
+    _Unwind_GetRegionStart; # arm
+    _Unwind_GetTextRelBase; # arm
+    _Unwind_RaiseException; # arm
+    _Unwind_Resume; # arm
+    _Unwind_Resume_or_Rethrow; # arm
+    _Unwind_VRS_Get; # arm
+    _Unwind_VRS_Pop; # arm
+    _Unwind_VRS_Set; # arm
+    restore_core_regs; # arm
+} LIBC;