glibc/math/Versions
Szabolcs Nagy 718d6542f2 Remove the error handling wrapper from log2
Introduce new log2 symbol version that doesn't do SVID compatible error
handling.  The standard errno and fp exception based error handling is
inline in the new code and does not have significant overhead.

The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty
w_log2.c and enabled for targets with their own log2 implementation by
including math/w_log2.c.

The compatibility symbol version still uses the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously log2l was an alias of log2, now it points to
the compatibility symbol with the wrapper, because it still need the
SVID compatible error handling.  This affects NO_LONG_DOUBLE (e.g. arm)
and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well.

The __log2_finite symbol is now an alias of log2.  Both __log2_finite
and log2 set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add log2.
	* math/w_log2_compat.c (__log2_compat): Change to versioned compat
	symbol.
	* math/w_log2.c: New file.
	* sysdeps/i386/fpu/w_log2.c: New file.
	* sysdeps/ia64/fpu/e_log2.S: Add versioned symbols.
	* sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_log2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_log2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
2018-11-21 09:57:21 +00:00

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%include <float128-abi.h>
libc {
GLIBC_2.0 {
# functions used in inline functions or macros
__isnan; __isnanf; __isnanl; __finite; __finitef; __finitel;
__isinf; __isinff; __isinfl;
# global variables
__fpu_control;
# c*
copysign; copysignf; copysignl;
# f*
finite; finitef; finitel; frexp; frexpf; frexpl;
# i*
isinf; isinff; isinfl; isnan; isnanf; isnanl; ldexp; ldexpf; ldexpl;
# m*
modf; modff; modfl;
# s*
scalbn; scalbnf; scalbnl;
}
GLIBC_2.1 {
# functions used in inline functions or macros
__signbit; __signbitf; __signbitl;
# s*
scalbln; scalblnf; scalblnl;
}
GLIBC_2.20 {
}
}
libm {
GLIBC_2.0 {
# mathematical functions
acos; acosf; acosl;
acosh; acoshf; acoshl;
asin; asinf; asinl;
asinh; asinhf; asinhl;
atan2; atan2f; atan2l;
atan; atanf; atanl;
atanh; atanhf; atanhl;
cbrt; cbrtf; cbrtl;
ceil; ceilf; ceill;
copysign; copysignf; copysignl;
cos; cosf; cosl;
coshf; cosh; coshl;
drem; dremf; dreml;
erf; erff; erfl;
erfc; erfcf; erfcl;
exp; expf; expl;
expm1; expm1f; expm1l;
fabs; fabsf; fabsl;
finite; finitef; finitel;
floor; floorf; floorl;
fmod; fmodf; fmodl;
frexp; frexpf; frexpl;
gamma; gammaf; gammal;
gamma_r; gammaf_r; gammal_r;
hypot; hypotf; hypotl;
ilogb; ilogbf; ilogbl;
j0; j0f; j0l;
j1; j1f; j1l;
jn; jnf; jnl;
ldexp; ldexpf; ldexpl;
lgamma; lgammaf; lgammal;
lgamma_r; lgammaf_r; lgammal_r;
log10; log10f; log10l;
log1p; log1pf; log1pl;
log; logf; logl;
logb; logbf; logbl;
matherr;
modf; modff; modfl;
nextafter; nextafterf; nextafterl;
pow; powf; powl;
remainder; remainderf; remainderl;
rint; rintf; rintl;
scalb; scalbf; scalbl;
scalbn; scalbnf; scalbnl;
significand; significandf; significandl;
sin; sinf; sinl;
sinh; sinhf; sinhl;
sqrt; sqrtf; sqrtl;
tan; tanf; tanl;
tanh; tanhf; tanhl;
y0; y0f; y0l;
y1; y1f; y1l;
yn; ynf; ynl;
# global variables
_LIB_VERSION; signgam;
}
GLIBC_2.1 {
# mathematical functions
exp2; exp2f; # exp2l; -- bug omitted this until GLIBC_2.4 (below)
exp10; exp10f; exp10l;
fdim; fdimf; fdiml;
fma; fmaf; fmal;
fmax; fmaxf; fmaxl;
fmin; fminf; fminl;
log2; log2f; log2l;
nan; nanf; nanl;
nearbyint; nearbyintf; nearbyintl;
nexttoward; nexttowardf; nexttowardl;
pow10; pow10f; pow10l;
remquo; remquof; remquol;
lrint; lrintf; lrintl;
llrint; llrintf; llrintl;
round; roundf; roundl;
lround; lroundf; lroundl;
llround; llroundf; llroundl;
scalbln; scalblnf; scalblnl;
sincos; sincosf; sincosl;
trunc; truncf; truncl;
tgamma; tgammaf; tgammal;
# complex functions
cabs; cabsf; cabsl;
cacos; cacosf; cacosl;
cacosh; cacoshf; cacoshl;
carg; cargf; cargl;
casin; casinf; casinl;
casinh; casinhf; casinhl;
catan; catanf; catanl;
catanh; catanhf; catanhl;
ccos; ccosf; ccosl;
ccosh; ccoshf; ccoshl;
cexp; cexpf; cexpl;
cimag; cimagf; cimagl;
clog; clogf; clogl;
clog10; clog10f; clog10l;
__clog10; __clog10f; __clog10l;
conj; conjf; conjl;
cpow; cpowf; cpowl;
cproj; cprojf; cprojl;
creal; crealf; creall;
csin; csinf; csinl;
csinh; csinhf; csinhl;
csqrt; csqrtf; csqrtl;
ctan; ctanf; ctanl;
ctanh; ctanhf; ctanhl;
# fp environment functions
feclearexcept; fegetenv; fegetexceptflag;
fegetround; feholdexcept; feraiseexcept;
fesetenv; fesetexceptflag; fesetround;
fetestexcept; feupdateenv;
# functions used in inline functions or macros
__finite; __finitef; __finitel;
__fpclassify; __fpclassifyf; __fpclassifyl;
__signbit; __signbitf; __signbitl;
}
GLIBC_2.2 {
# fp environment functions changes from ISO C99 TR1
feclearexcept; fegetenv; fegetexceptflag; feraiseexcept;
fesetenv; fesetexceptflag; feupdateenv;
# fp environment function
feenableexcept; fedisableexcept; fegetexcept;
}
GLIBC_2.4 {
# A bug in sysdeps/generic/w_exp2.c kept this from appearing
# in GLIBC_2.1 as it should have on platforms using that
# implementation file. On others, sysdeps/CPU/Versions now
# puts exp2l in GLIBC_2.1, which will override this entry.
exp2l;
}
GLIBC_2.15 {
# Optimized -ffinite-math-only entry points
__acos_finite; __acosf_finite; __acosl_finite;
__acosh_finite; __acoshf_finite; __acoshl_finite;
__asin_finite; __asinf_finite; __asinl_finite;
__atan2_finite; __atan2f_finite; __atan2l_finite;
__atanh_finite; __atanhf_finite; __atanhl_finite;
__cosh_finite; __coshf_finite; __coshl_finite;
__exp10_finite; __exp10f_finite; __exp10l_finite;
__exp2_finite; __exp2f_finite; __exp2l_finite;
__fmod_finite; __fmodf_finite; __fmodl_finite;
__hypot_finite; __hypotf_finite; __hypotl_finite;
__j0_finite; __j0f_finite; __j0l_finite;
__y0_finite; __y0f_finite; __y0l_finite;
__j1_finite; __j1f_finite; __j1l_finite;
__y1_finite; __y1f_finite; __y1l_finite;
__jn_finite; __jnf_finite; __jnl_finite;
__yn_finite; __ynf_finite; __ynl_finite;
__lgamma_r_finite; __lgammaf_r_finite; __lgammal_r_finite;
__log_finite; __logf_finite; __logl_finite;
__log10_finite; __log10f_finite; __log10l_finite;
__log2_finite; __log2f_finite; __log2l_finite;
__pow_finite; __powf_finite; __powl_finite;
__remainder_finite; __remainderf_finite; __remainderl_finite;
__scalb_finite; __scalbf_finite; __scalbl_finite;
__sinh_finite; __sinhf_finite; __sinhl_finite;
__sqrt_finite; __sqrtf_finite; __sqrtl_finite;
__gamma_r_finite; __gammaf_r_finite; __gammal_r_finite;
__exp_finite; __expf_finite; __expl_finite;
}
GLIBC_2.18 {
__issignaling; __issignalingf; __issignalingl;
}
GLIBC_2.23 {
# The __signgam name must be exported for the signgam weak alias
# to work. New symbol versions of lgamma* that set __signgam are
# needed to preserve compatibility with old binaries that have a
# dynamic symbol for signgam but not __signgam.
lgamma; lgammaf; lgammal; __signgam;
}
GLIBC_2.24 {
nextup; nextupf; nextupl;
nextdown; nextdownf; nextdownl;
}
GLIBC_2.25 {
fesetexcept; fetestexceptflag; fegetmode; fesetmode;
__iscanonicall; __iseqsigf; __iseqsig; __iseqsigl;
totalorder; totalorderf; totalorderl;
totalordermag; totalordermagf; totalordermagl;
getpayload; getpayloadf; getpayloadl;
canonicalize; canonicalizef; canonicalizel;
setpayload; setpayloadf; setpayloadl;
setpayloadsig; setpayloadsigf; setpayloadsigl;
llogb; llogbf; llogbl;
fmaxmag; fmaxmagf; fmaxmagl; fminmag; fminmagf; fminmagl;
roundeven; roundevenf; roundevenl;
fromfp; fromfpf; fromfpl; ufromfp; ufromfpf; ufromfpl;
fromfpx; fromfpxf; fromfpxl; ufromfpx; ufromfpxf; ufromfpxl;
}
%ifdef FLOAT128_VERSION
FLOAT128_VERSION {
acosf128;
acoshf128;
asinf128;
asinhf128;
atan2f128;
atanf128;
atanhf128;
cabsf128;
cacosf128;
cacoshf128;
canonicalizef128;
cargf128;
casinf128;
casinhf128;
catanf128;
catanhf128;
cbrtf128;
ccosf128;
ccoshf128;
ceilf128;
cexpf128;
cimagf128;
clog10f128;
clogf128;
conjf128;
copysignf128;
cosf128;
coshf128;
cpowf128;
cprojf128;
crealf128;
csinf128;
csinhf128;
csqrtf128;
ctanf128;
ctanhf128;
erfcf128;
erff128;
exp10f128;
exp2f128;
expf128;
expm1f128;
fabsf128;
fdimf128;
floorf128;
fmaf128;
fmaxf128;
fmaxmagf128;
fminf128;
fminmagf128;
fmodf128;
frexpf128;
fromfpf128;
fromfpxf128;
getpayloadf128;
hypotf128;
ilogbf128;
j0f128;
j1f128;
jnf128;
ldexpf128;
lgammaf128;
lgammaf128_r;
llogbf128;
llrintf128;
llroundf128;
log10f128;
log1pf128;
log2f128;
logbf128;
logf128;
lrintf128;
lroundf128;
modff128;
nanf128;
nearbyintf128;
nextafterf128;
nextdownf128;
nextupf128;
powf128;
remainderf128;
remquof128;
rintf128;
roundevenf128;
roundf128;
scalblnf128;
scalbnf128;
setpayloadf128;
setpayloadsigf128;
sincosf128;
sinf128;
sinhf128;
sqrtf128;
tanf128;
tanhf128;
tgammaf128;
totalorderf128;
totalordermagf128;
truncf128;
ufromfpf128;
ufromfpxf128;
y0f128;
y1f128;
ynf128;
}
%endif
GLIBC_2.27 {
expf; exp2f; logf; log2f; powf;
# _Float64x functions, only present for some configurations.
acosf64x;
acoshf64x;
asinf64x;
asinhf64x;
atan2f64x;
atanf64x;
atanhf64x;
cabsf64x;
cacosf64x;
cacoshf64x;
canonicalizef64x;
cargf64x;
casinf64x;
casinhf64x;
catanf64x;
catanhf64x;
cbrtf64x;
ccosf64x;
ccoshf64x;
ceilf64x;
cexpf64x;
cimagf64x;
clog10f64x;
clogf64x;
conjf64x;
copysignf64x;
cosf64x;
coshf64x;
cpowf64x;
cprojf64x;
crealf64x;
csinf64x;
csinhf64x;
csqrtf64x;
ctanf64x;
ctanhf64x;
erfcf64x;
erff64x;
exp10f64x;
exp2f64x;
expf64x;
expm1f64x;
fabsf64x;
fdimf64x;
floorf64x;
fmaf64x;
fmaxf64x;
fmaxmagf64x;
fminf64x;
fminmagf64x;
fmodf64x;
frexpf64x;
fromfpf64x;
fromfpxf64x;
getpayloadf64x;
hypotf64x;
ilogbf64x;
j0f64x;
j1f64x;
jnf64x;
ldexpf64x;
lgammaf64x;
lgammaf64x_r;
llogbf64x;
llrintf64x;
llroundf64x;
log10f64x;
log1pf64x;
log2f64x;
logbf64x;
logf64x;
lrintf64x;
lroundf64x;
modff64x;
nanf64x;
nearbyintf64x;
nextafterf64x;
nextdownf64x;
nextupf64x;
powf64x;
remainderf64x;
remquof64x;
rintf64x;
roundevenf64x;
roundf64x;
scalblnf64x;
scalbnf64x;
setpayloadf64x;
setpayloadsigf64x;
sincosf64x;
sinf64x;
sinhf64x;
sqrtf64x;
tanf64x;
tanhf64x;
tgammaf64x;
totalorderf64x;
totalordermagf64x;
truncf64x;
ufromfpf64x;
ufromfpxf64x;
y0f64x;
y1f64x;
ynf64x;
# _Float32, _Float64 and _Float32x functions, for all configurations.
acosf32; acosf64; acosf32x;
acoshf32; acoshf64; acoshf32x;
asinf32; asinf64; asinf32x;
asinhf32; asinhf64; asinhf32x;
atan2f32; atan2f64; atan2f32x;
atanf32; atanf64; atanf32x;
atanhf32; atanhf64; atanhf32x;
cabsf32; cabsf64; cabsf32x;
cacosf32; cacosf64; cacosf32x;
cacoshf32; cacoshf64; cacoshf32x;
canonicalizef32; canonicalizef64; canonicalizef32x;
cargf32; cargf64; cargf32x;
casinf32; casinf64; casinf32x;
casinhf32; casinhf64; casinhf32x;
catanf32; catanf64; catanf32x;
catanhf32; catanhf64; catanhf32x;
cbrtf32; cbrtf64; cbrtf32x;
ccosf32; ccosf64; ccosf32x;
ccoshf32; ccoshf64; ccoshf32x;
ceilf32; ceilf64; ceilf32x;
cexpf32; cexpf64; cexpf32x;
cimagf32; cimagf64; cimagf32x;
clog10f32; clog10f64; clog10f32x;
clogf32; clogf64; clogf32x;
conjf32; conjf64; conjf32x;
copysignf32; copysignf64; copysignf32x;
cosf32; cosf64; cosf32x;
coshf32; coshf64; coshf32x;
cpowf32; cpowf64; cpowf32x;
cprojf32; cprojf64; cprojf32x;
crealf32; crealf64; crealf32x;
csinf32; csinf64; csinf32x;
csinhf32; csinhf64; csinhf32x;
csqrtf32; csqrtf64; csqrtf32x;
ctanf32; ctanf64; ctanf32x;
ctanhf32; ctanhf64; ctanhf32x;
erfcf32; erfcf64; erfcf32x;
erff32; erff64; erff32x;
exp10f32; exp10f64; exp10f32x;
exp2f32; exp2f64; exp2f32x;
expf32; expf64; expf32x;
expm1f32; expm1f64; expm1f32x;
fabsf32; fabsf64; fabsf32x;
fdimf32; fdimf64; fdimf32x;
floorf32; floorf64; floorf32x;
fmaf32; fmaf64; fmaf32x;
fmaxf32; fmaxf64; fmaxf32x;
fmaxmagf32; fmaxmagf64; fmaxmagf32x;
fminf32; fminf64; fminf32x;
fminmagf32; fminmagf64; fminmagf32x;
fmodf32; fmodf64; fmodf32x;
frexpf32; frexpf64; frexpf32x;
fromfpf32; fromfpf64; fromfpf32x;
fromfpxf32; fromfpxf64; fromfpxf32x;
getpayloadf32; getpayloadf64; getpayloadf32x;
hypotf32; hypotf64; hypotf32x;
ilogbf32; ilogbf64; ilogbf32x;
j0f32; j0f64; j0f32x;
j1f32; j1f64; j1f32x;
jnf32; jnf64; jnf32x;
ldexpf32; ldexpf64; ldexpf32x;
lgammaf32; lgammaf64; lgammaf32x;
lgammaf32_r; lgammaf64_r; lgammaf32x_r;
llogbf32; llogbf64; llogbf32x;
llrintf32; llrintf64; llrintf32x;
llroundf32; llroundf64; llroundf32x;
log10f32; log10f64; log10f32x;
log1pf32; log1pf64; log1pf32x;
log2f32; log2f64; log2f32x;
logbf32; logbf64; logbf32x;
logf32; logf64; logf32x;
lrintf32; lrintf64; lrintf32x;
lroundf32; lroundf64; lroundf32x;
modff32; modff64; modff32x;
nanf32; nanf64; nanf32x;
nearbyintf32; nearbyintf64; nearbyintf32x;
nextafterf32; nextafterf64; nextafterf32x;
nextdownf32; nextdownf64; nextdownf32x;
nextupf32; nextupf64; nextupf32x;
powf32; powf64; powf32x;
remainderf32; remainderf64; remainderf32x;
remquof32; remquof64; remquof32x;
rintf32; rintf64; rintf32x;
roundevenf32; roundevenf64; roundevenf32x;
roundf32; roundf64; roundf32x;
scalblnf32; scalblnf64; scalblnf32x;
scalbnf32; scalbnf64; scalbnf32x;
setpayloadf32; setpayloadf64; setpayloadf32x;
setpayloadsigf32; setpayloadsigf64; setpayloadsigf32x;
sincosf32; sincosf64; sincosf32x;
sinf32; sinf64; sinf32x;
sinhf32; sinhf64; sinhf32x;
sqrtf32; sqrtf64; sqrtf32x;
tanf32; tanf64; tanf32x;
tanhf32; tanhf64; tanhf32x;
tgammaf32; tgammaf64; tgammaf32x;
totalorderf32; totalorderf64; totalorderf32x;
totalordermagf32; totalordermagf64; totalordermagf32x;
truncf32; truncf64; truncf32x;
ufromfpf32; ufromfpf64; ufromfpf32x;
ufromfpxf32; ufromfpxf64; ufromfpxf32x;
y0f32; y0f64; y0f32x;
y1f32; y1f64; y1f32x;
ynf32; ynf64; ynf32x;
}
GLIBC_2.28 {
# Functions not involving _Float64x or _Float128, for all configurations.
fadd; faddl; daddl;
f32addf32x; f32addf64; f32xaddf64;
fdiv; fdivl; ddivl;
f32divf32x; f32divf64; f32xdivf64;
fmul; fmull; dmull;
f32mulf32x; f32mulf64; f32xmulf64;
fsub; fsubl; dsubl;
f32subf32x; f32subf64; f32xsubf64;
# Functions involving _Float64x or _Float128, for some configurations.
f32addf64x; f32addf128;
f32xaddf64x; f32xaddf128; f64addf64x; f64addf128;
f64xaddf128;
f32divf64x; f32divf128;
f32xdivf64x; f32xdivf128; f64divf64x; f64divf128;
f64xdivf128;
f32mulf64x; f32mulf128;
f32xmulf64x; f32xmulf128; f64mulf64x; f64mulf128;
f64xmulf128;
f32subf64x; f32subf128;
f32xsubf64x; f32xsubf128; f64subf64x; f64subf128;
f64xsubf128;
}
GLIBC_2.29 {
# No SVID compatible error handling.
exp; exp2; log; log2;
}
}