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af59ead0bb
freebsd-skq/lib/msun/src
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eadler b21ccf63f2 msun: signed overflow in atan2 
As a component of atan2(y, x), the case of x == 1.0 is farmed out to
atan(y). The current implementation of this comparison is vulnerable
to signed integer underflow (that is, undefined behavior), and it's
performed in a somewhat more complicated way than it need be. Change
it to not be quite so cute, rather directly comparing the high/low
bits of x to the specific IEEE-754 bit pattern that encodes 1.0.

Note that while there are three different e_atan* files in the
relevant directory, only this one needs fixing. e_atan2f.c already
compares against the full bit pattern encoding 1.0f, while
e_atan2l.cuses bitwise-ands/ors/nots and so doesn't require a change.

Closes #130

Submitted by:	Jeff Walden (@jswalden github PR #130)
Reviewed by:	bde
MFC After:	1 month
2018-02-14 07:59:30 +00:00
..
catrig.c lib: Fix several typos and minor errors 2017-12-27 03:23:41 +00:00
catrigf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
catrigl.c lib/msun: avoid referring to broken LDBL_MAX 2017-08-29 22:32:29 +00:00
e_acos.c
e_acosf.c
e_acosh.c
e_acoshf.c
e_acoshl.c
e_acosl.c
e_asin.c
e_asinf.c
e_asinl.c
e_atan2.c msun: signed overflow in atan2 2018-02-14 07:59:30 +00:00
e_atan2f.c
e_atan2l.c
e_atanh.c
e_atanhf.c
e_atanhl.c
e_cosh.c
e_coshf.c
e_coshl.c
e_exp.c
e_expf.c
e_fmod.c
e_fmodf.c
e_fmodl.c
e_gamma_r.c
e_gamma.c
e_gammaf_r.c
e_gammaf.c
e_hypot.c
e_hypotf.c
e_hypotl.c
e_j0.c
e_j0f.c
e_j1.c
e_j1f.c
e_jn.c
e_jnf.c
e_lgamma_r.c
e_lgamma.c
e_lgammaf_r.c
e_lgammaf.c
e_lgammal.c
e_log2.c
e_log2f.c
e_log10.c
e_log10f.c
e_log.c
e_logf.c
e_pow.c lib/msun: remove trailing whitespace from e_pow.c 2017-12-03 01:56:03 +00:00
e_powf.c
e_rem_pio2.c
e_rem_pio2f.c
e_remainder.c
e_remainderf.c
e_remainderl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
e_scalb.c
e_scalbf.c
e_sinh.c
e_sinhf.c
e_sinhl.c
e_sqrt.c
e_sqrtf.c
e_sqrtl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
fenv-softfloat.h lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
imprecise.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
k_cos.c
k_cosf.c
k_exp.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
k_expf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
k_log.h
k_logf.h
k_rem_pio2.c
k_sin.c
k_sincos.h
k_sincosf.h
k_sincosl.h
k_sinf.c
k_tan.c
k_tanf.c
math_private.h
math.h
s_asinh.c
s_asinhf.c
s_asinhl.c
s_atan.c
s_atanf.c
s_atanl.c
s_carg.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cargf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cargl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cbrt.c
s_cbrtf.c
s_cbrtl.c
s_ccosh.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_ccoshf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_ceil.c
s_ceilf.c
s_ceill.c
s_cexp.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cexpf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cimag.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cimagf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cimagl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_conj.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_conjf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_conjl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_copysign.c
s_copysignf.c
s_copysignl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cos.c
s_cosf.c
s_cosl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cproj.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cprojf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_cprojl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_creal.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_crealf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_creall.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_csinh.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_csinhf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_csqrt.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_csqrtf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_csqrtl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_ctanh.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_ctanhf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_erf.c
s_erff.c
s_exp2.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_exp2f.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_expm1.c
s_expm1f.c
s_fabs.c
s_fabsf.c
s_fabsl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fdim.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_finite.c
s_finitef.c
s_floor.c
s_floorf.c
s_floorl.c
s_fma.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmaf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmal.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmax.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmaxf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmaxl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fmin.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fminf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_fminl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_frexp.c
s_frexpf.c
s_frexpl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_ilogb.c
s_ilogbf.c
s_ilogbl.c
s_isfinite.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_isnan.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_isnormal.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_llrint.c
s_llrintf.c
s_llrintl.c
s_llround.c
s_llroundf.c
s_llroundl.c
s_log1p.c
s_log1pf.c
s_logb.c
s_logbf.c
s_logbl.c
s_lrint.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_lrintf.c
s_lrintl.c
s_lround.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_lroundf.c
s_lroundl.c
s_modf.c
s_modff.c
s_modfl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_nan.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_nearbyint.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_nextafter.c
s_nextafterf.c
s_nextafterl.c
s_nexttoward.c
s_nexttowardf.c
s_remquo.c
s_remquof.c
s_remquol.c
s_rint.c
s_rintf.c
s_rintl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_round.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_roundf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_roundl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_scalbln.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_scalbn.c
s_scalbnf.c
s_scalbnl.c
s_signbit.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_signgam.c
s_significand.c
s_significandf.c
s_sin.c
s_sincos.c
s_sincosf.c
s_sincosl.c
s_sinf.c
s_sinl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_tan.c
s_tanf.c
s_tanh.c
s_tanhf.c
s_tanhl.c
s_tanl.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_tgammaf.c lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
s_trunc.c
s_truncf.c
s_truncl.c
w_cabs.c
w_cabsf.c
w_cabsl.c
w_drem.c
w_dremf.c