Add _Float64x function aliases.

This patch continues filling out TS 18661-3 support by adding *f64x
function aliases on platforms with _Float64x support.  (It so happens
the set of such platforms is exactly the same as the set of platforms
with _Float128 support, although on x86_64, x86 and ia32 the _Float64x
format is Intel extended rather than binary128.)  The API provided
corresponds exactly to that provided for _Float128, mostly coming from
TS 18661-3.  As these functions always alias those for another type
(long double, _Float128 or both), __* function names are not provided,
as in other cases of alias types.

Given the preparation done in previous patches, this one just enables
the feature via Makeconfig and bits/floatn.h, adds symbol versions,
and updates documentation and ABI baselines.  The symbol versions are
present unconditionally as GLIBC_2.27 in the relevant Versions files,
as it's OK for those to specify versions for functions that may not be
present in some configurations; no additional complexity is needed
unless in future some configuration gains support for this type that
didn't have such support in 2.27.  The Makeconfig additions for ia64
and x86 aren't strictly needed, as those configurations also get
float64x-alias-fcts definitions from
sysdeps/ieee754/float128/Makeconfig, but still seem appropriate given
that _Float64x is not _Float128 for those configurations.

A libm-test-ulps update for x86 is included.  This is because
bits/mathinline.h does not have _Float64x support added and for two
functions the use of out-of-line functions results in increased ulps
(ifloat64x shares ulps with ildouble / ifloat128 as appropriate).
Given that we'd like generally to eliminate bits/mathinline.h
optimizations, preferring to have such optimizations in GCC instead,
it seems reasonable not to add such support there for new types.  GCC
support for _FloatN / _FloatNx built-in functions is limited, but has
been improved in GCC 8, and at some point I hope the full set of libm
built-in functions in GCC, and other optimizations with
per-floating-type aspects, will be enabled for all _FloatN / _FloatNx
types.

Tested for x86_64 and x86, and with build-many-glibcs.py, with both
GCC 6 and GCC 7.

	* sysdeps/ia64/Makeconfig (float64x-alias-fcts): New variable.
	* sysdeps/ieee754/float128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/ieee754/ldbl-128/Makeconfig (float64x-alias-fcts):
	Likewise.
	* sysdeps/x86/Makeconfig: New file.
	* bits/floatn-common.h (__HAVE_FLOAT64X): Remove macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* bits/floatn.h (__HAVE_FLOAT64X): New macro.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ia64/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/ieee754/ldbl-128/bits/floatn.h (__HAVE_FLOAT64X):
	Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/mips/ieee754/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/powerpc/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* sysdeps/x86/bits/floatn.h (__HAVE_FLOAT64X): Likewise.
	(__HAVE_FLOAT64X_LONG_DOUBLE): Likewise.
	* manual/math.texi (Mathematics): Document support for _Float64x.
	* math/Versions (GLIBC_2.27): Add _Float64x functions.
	* stdlib/Versions (GLIBC_2.27): Likewise.
	* wcsmbs/Versions (GLIBC_2.27): Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libc.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Likewise.
	* sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.

25 files changed, 1313 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index 140ca28abc..af60b4f577 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2108,7 +2108,12 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index b21d136e9d..4174e64e6e 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -462,111 +462,215 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index f698e1b2f4..98c6a17ae1 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -2019,10 +2019,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index 3ba02a1966..75bd55cbb9 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -472,114 +472,218 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.3.4 GLIBC_2.3.4 A
 GLIBC_2.3.4 __c1_cabsf F
 GLIBC_2.3.4 __c1_cacosf F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 51ead9e867..1526778ec2 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2037,6 +2037,11 @@ GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
+GLIBC_2.27 strfromf64x F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index 1a7e6bf449..274ca86606 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -612,9 +612,113 @@ GLIBC_2.26 y0f128 F
 GLIBC_2.26 y1f128 F
 GLIBC_2.26 ynf128 F
 GLIBC_2.27 GLIBC_2.27 A
+GLIBC_2.27 acosf64x F
+GLIBC_2.27 acoshf64x F
+GLIBC_2.27 asinf64x F
+GLIBC_2.27 asinhf64x F
+GLIBC_2.27 atan2f64x F
+GLIBC_2.27 atanf64x F
+GLIBC_2.27 atanhf64x F
+GLIBC_2.27 cabsf64x F
+GLIBC_2.27 cacosf64x F
+GLIBC_2.27 cacoshf64x F
+GLIBC_2.27 canonicalizef64x F
+GLIBC_2.27 cargf64x F
+GLIBC_2.27 casinf64x F
+GLIBC_2.27 casinhf64x F
+GLIBC_2.27 catanf64x F
+GLIBC_2.27 catanhf64x F
+GLIBC_2.27 cbrtf64x F
+GLIBC_2.27 ccosf64x F
+GLIBC_2.27 ccoshf64x F
+GLIBC_2.27 ceilf64x F
+GLIBC_2.27 cexpf64x F
+GLIBC_2.27 cimagf64x F
+GLIBC_2.27 clog10f64x F
+GLIBC_2.27 clogf64x F
+GLIBC_2.27 conjf64x F
+GLIBC_2.27 copysignf64x F
+GLIBC_2.27 cosf64x F
+GLIBC_2.27 coshf64x F
+GLIBC_2.27 cpowf64x F
+GLIBC_2.27 cprojf64x F
+GLIBC_2.27 crealf64x F
+GLIBC_2.27 csinf64x F
+GLIBC_2.27 csinhf64x F
+GLIBC_2.27 csqrtf64x F
+GLIBC_2.27 ctanf64x F
+GLIBC_2.27 ctanhf64x F
+GLIBC_2.27 erfcf64x F
+GLIBC_2.27 erff64x F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
+GLIBC_2.27 expf64x F
+GLIBC_2.27 expm1f64x F
+GLIBC_2.27 fabsf64x F
+GLIBC_2.27 fdimf64x F
+GLIBC_2.27 floorf64x F
+GLIBC_2.27 fmaf64x F
+GLIBC_2.27 fmaxf64x F
+GLIBC_2.27 fmaxmagf64x F
+GLIBC_2.27 fminf64x F
+GLIBC_2.27 fminmagf64x F
+GLIBC_2.27 fmodf64x F
+GLIBC_2.27 frexpf64x F
+GLIBC_2.27 fromfpf64x F
+GLIBC_2.27 fromfpxf64x F
+GLIBC_2.27 getpayloadf64x F
+GLIBC_2.27 hypotf64x F
+GLIBC_2.27 ilogbf64x F
+GLIBC_2.27 j0f64x F
+GLIBC_2.27 j1f64x F
+GLIBC_2.27 jnf64x F
+GLIBC_2.27 ldexpf64x F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
+GLIBC_2.27 llogbf64x F
+GLIBC_2.27 llrintf64x F
+GLIBC_2.27 llroundf64x F
+GLIBC_2.27 log10f64x F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
+GLIBC_2.27 log2f64x F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
+GLIBC_2.27 logf64x F
+GLIBC_2.27 lrintf64x F
+GLIBC_2.27 lroundf64x F
+GLIBC_2.27 modff64x F
+GLIBC_2.27 nanf64x F
+GLIBC_2.27 nearbyintf64x F
+GLIBC_2.27 nextafterf64x F
+GLIBC_2.27 nextdownf64x F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
+GLIBC_2.27 powf64x F
+GLIBC_2.27 remainderf64x F
+GLIBC_2.27 remquof64x F
+GLIBC_2.27 rintf64x F
+GLIBC_2.27 roundevenf64x F
+GLIBC_2.27 roundf64x F
+GLIBC_2.27 scalblnf64x F
+GLIBC_2.27 scalbnf64x F
+GLIBC_2.27 setpayloadf64x F
+GLIBC_2.27 setpayloadsigf64x F
+GLIBC_2.27 sincosf64x F
+GLIBC_2.27 sinf64x F
+GLIBC_2.27 sinhf64x F
+GLIBC_2.27 sqrtf64x F
+GLIBC_2.27 tanf64x F
+GLIBC_2.27 tanhf64x F
+GLIBC_2.27 tgammaf64x F
+GLIBC_2.27 totalorderf64x F
+GLIBC_2.27 totalordermagf64x F
+GLIBC_2.27 truncf64x F
+GLIBC_2.27 ufromfpf64x F
+GLIBC_2.27 ufromfpxf64x F
+GLIBC_2.27 y0f64x F
+GLIBC_2.27 y1f64x F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
index 78b4ee8d40..132200f2bd 100644
--- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
@@ -1901,6 +1901,11 @@ GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
+GLIBC_2.27 strfromf64x F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 7e15735eae..28a38c6006 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -541,9 +541,113 @@ GLIBC_2.26 y0f128 F
 GLIBC_2.26 y1f128 F
 GLIBC_2.26 ynf128 F
 GLIBC_2.27 GLIBC_2.27 A
+GLIBC_2.27 acosf64x F
+GLIBC_2.27 acoshf64x F
+GLIBC_2.27 asinf64x F
+GLIBC_2.27 asinhf64x F
+GLIBC_2.27 atan2f64x F
+GLIBC_2.27 atanf64x F
+GLIBC_2.27 atanhf64x F
+GLIBC_2.27 cabsf64x F
+GLIBC_2.27 cacosf64x F
+GLIBC_2.27 cacoshf64x F
+GLIBC_2.27 canonicalizef64x F
+GLIBC_2.27 cargf64x F
+GLIBC_2.27 casinf64x F
+GLIBC_2.27 casinhf64x F
+GLIBC_2.27 catanf64x F
+GLIBC_2.27 catanhf64x F
+GLIBC_2.27 cbrtf64x F
+GLIBC_2.27 ccosf64x F
+GLIBC_2.27 ccoshf64x F
+GLIBC_2.27 ceilf64x F
+GLIBC_2.27 cexpf64x F
+GLIBC_2.27 cimagf64x F
+GLIBC_2.27 clog10f64x F
+GLIBC_2.27 clogf64x F
+GLIBC_2.27 conjf64x F
+GLIBC_2.27 copysignf64x F
+GLIBC_2.27 cosf64x F
+GLIBC_2.27 coshf64x F
+GLIBC_2.27 cpowf64x F
+GLIBC_2.27 cprojf64x F
+GLIBC_2.27 crealf64x F
+GLIBC_2.27 csinf64x F
+GLIBC_2.27 csinhf64x F
+GLIBC_2.27 csqrtf64x F
+GLIBC_2.27 ctanf64x F
+GLIBC_2.27 ctanhf64x F
+GLIBC_2.27 erfcf64x F
+GLIBC_2.27 erff64x F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
+GLIBC_2.27 expf64x F
+GLIBC_2.27 expm1f64x F
+GLIBC_2.27 fabsf64x F
+GLIBC_2.27 fdimf64x F
+GLIBC_2.27 floorf64x F
+GLIBC_2.27 fmaf64x F
+GLIBC_2.27 fmaxf64x F
+GLIBC_2.27 fmaxmagf64x F
+GLIBC_2.27 fminf64x F
+GLIBC_2.27 fminmagf64x F
+GLIBC_2.27 fmodf64x F
+GLIBC_2.27 frexpf64x F
+GLIBC_2.27 fromfpf64x F
+GLIBC_2.27 fromfpxf64x F
+GLIBC_2.27 getpayloadf64x F
+GLIBC_2.27 hypotf64x F
+GLIBC_2.27 ilogbf64x F
+GLIBC_2.27 j0f64x F
+GLIBC_2.27 j1f64x F
+GLIBC_2.27 jnf64x F
+GLIBC_2.27 ldexpf64x F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
+GLIBC_2.27 llogbf64x F
+GLIBC_2.27 llrintf64x F
+GLIBC_2.27 llroundf64x F
+GLIBC_2.27 log10f64x F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
+GLIBC_2.27 log2f64x F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
+GLIBC_2.27 logf64x F
+GLIBC_2.27 lrintf64x F
+GLIBC_2.27 lroundf64x F
+GLIBC_2.27 modff64x F
+GLIBC_2.27 nanf64x F
+GLIBC_2.27 nearbyintf64x F
+GLIBC_2.27 nextafterf64x F
+GLIBC_2.27 nextdownf64x F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
+GLIBC_2.27 powf64x F
+GLIBC_2.27 remainderf64x F
+GLIBC_2.27 remquof64x F
+GLIBC_2.27 rintf64x F
+GLIBC_2.27 roundevenf64x F
+GLIBC_2.27 roundf64x F
+GLIBC_2.27 scalblnf64x F
+GLIBC_2.27 scalbnf64x F
+GLIBC_2.27 setpayloadf64x F
+GLIBC_2.27 setpayloadsigf64x F
+GLIBC_2.27 sincosf64x F
+GLIBC_2.27 sinf64x F
+GLIBC_2.27 sinhf64x F
+GLIBC_2.27 sqrtf64x F
+GLIBC_2.27 tanf64x F
+GLIBC_2.27 tanhf64x F
+GLIBC_2.27 tgammaf64x F
+GLIBC_2.27 totalorderf64x F
+GLIBC_2.27 totalordermagf64x F
+GLIBC_2.27 truncf64x F
+GLIBC_2.27 ufromfpf64x F
+GLIBC_2.27 ufromfpxf64x F
+GLIBC_2.27 y0f64x F
+GLIBC_2.27 y1f64x F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
index 92a46b6b30..9acc4cb41c 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -464,112 +464,216 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index ce7bc9b175..6ec940ee99 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -1958,10 +1958,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index 3fdd85eace..71062b0eed 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -1953,10 +1953,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
index fa026a332c..a00f9042f8 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist
@@ -2202,3 +2202,8 @@ GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
+GLIBC_2.27 strfromf64x F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
index 723be46c20..1d86c798b9 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
@@ -606,8 +606,112 @@ GLIBC_2.26 y0f128 F
 GLIBC_2.26 y1f128 F
 GLIBC_2.26 ynf128 F
 GLIBC_2.27 GLIBC_2.27 A
+GLIBC_2.27 acosf64x F
+GLIBC_2.27 acoshf64x F
+GLIBC_2.27 asinf64x F
+GLIBC_2.27 asinhf64x F
+GLIBC_2.27 atan2f64x F
+GLIBC_2.27 atanf64x F
+GLIBC_2.27 atanhf64x F
+GLIBC_2.27 cabsf64x F
+GLIBC_2.27 cacosf64x F
+GLIBC_2.27 cacoshf64x F
+GLIBC_2.27 canonicalizef64x F
+GLIBC_2.27 cargf64x F
+GLIBC_2.27 casinf64x F
+GLIBC_2.27 casinhf64x F
+GLIBC_2.27 catanf64x F
+GLIBC_2.27 catanhf64x F
+GLIBC_2.27 cbrtf64x F
+GLIBC_2.27 ccosf64x F
+GLIBC_2.27 ccoshf64x F
+GLIBC_2.27 ceilf64x F
+GLIBC_2.27 cexpf64x F
+GLIBC_2.27 cimagf64x F
+GLIBC_2.27 clog10f64x F
+GLIBC_2.27 clogf64x F
+GLIBC_2.27 conjf64x F
+GLIBC_2.27 copysignf64x F
+GLIBC_2.27 cosf64x F
+GLIBC_2.27 coshf64x F
+GLIBC_2.27 cpowf64x F
+GLIBC_2.27 cprojf64x F
+GLIBC_2.27 crealf64x F
+GLIBC_2.27 csinf64x F
+GLIBC_2.27 csinhf64x F
+GLIBC_2.27 csqrtf64x F
+GLIBC_2.27 ctanf64x F
+GLIBC_2.27 ctanhf64x F
+GLIBC_2.27 erfcf64x F
+GLIBC_2.27 erff64x F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
+GLIBC_2.27 expf64x F
+GLIBC_2.27 expm1f64x F
+GLIBC_2.27 fabsf64x F
+GLIBC_2.27 fdimf64x F
+GLIBC_2.27 floorf64x F
+GLIBC_2.27 fmaf64x F
+GLIBC_2.27 fmaxf64x F
+GLIBC_2.27 fmaxmagf64x F
+GLIBC_2.27 fminf64x F
+GLIBC_2.27 fminmagf64x F
+GLIBC_2.27 fmodf64x F
+GLIBC_2.27 frexpf64x F
+GLIBC_2.27 fromfpf64x F
+GLIBC_2.27 fromfpxf64x F
+GLIBC_2.27 getpayloadf64x F
+GLIBC_2.27 hypotf64x F
+GLIBC_2.27 ilogbf64x F
+GLIBC_2.27 j0f64x F
+GLIBC_2.27 j1f64x F
+GLIBC_2.27 jnf64x F
+GLIBC_2.27 ldexpf64x F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
+GLIBC_2.27 llogbf64x F
+GLIBC_2.27 llrintf64x F
+GLIBC_2.27 llroundf64x F
+GLIBC_2.27 log10f64x F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
+GLIBC_2.27 log2f64x F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
+GLIBC_2.27 logf64x F
+GLIBC_2.27 lrintf64x F
+GLIBC_2.27 lroundf64x F
+GLIBC_2.27 modff64x F
+GLIBC_2.27 nanf64x F
+GLIBC_2.27 nearbyintf64x F
+GLIBC_2.27 nextafterf64x F
+GLIBC_2.27 nextdownf64x F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
+GLIBC_2.27 powf64x F
+GLIBC_2.27 remainderf64x F
+GLIBC_2.27 remquof64x F
+GLIBC_2.27 rintf64x F
+GLIBC_2.27 roundevenf64x F
+GLIBC_2.27 roundf64x F
+GLIBC_2.27 scalblnf64x F
+GLIBC_2.27 scalbnf64x F
+GLIBC_2.27 setpayloadf64x F
+GLIBC_2.27 setpayloadsigf64x F
+GLIBC_2.27 sincosf64x F
+GLIBC_2.27 sinf64x F
+GLIBC_2.27 sinhf64x F
+GLIBC_2.27 sqrtf64x F
+GLIBC_2.27 tanf64x F
+GLIBC_2.27 tanhf64x F
+GLIBC_2.27 tgammaf64x F
+GLIBC_2.27 totalorderf64x F
+GLIBC_2.27 totalordermagf64x F
+GLIBC_2.27 truncf64x F
+GLIBC_2.27 ufromfpf64x F
+GLIBC_2.27 ufromfpxf64x F
+GLIBC_2.27 y0f64x F
+GLIBC_2.27 y1f64x F
+GLIBC_2.27 ynf64x F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 41b79c496a..b7dbfaa23e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -1991,10 +1991,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index f3c4f77264..05f32b9f48 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -462,114 +462,218 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index 68251a0e69..1175cd7d13 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -1892,10 +1892,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
index eb113fd37c..1912fe6df5 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -460,114 +460,218 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 93e6d092ac..899d5ff604 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -1984,10 +1984,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
index 152a83a869..5b08525e9b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -469,114 +469,218 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index b11d6764d4..fbe0e51f62 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -1921,10 +1921,15 @@ GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
 GLIBC_2.27 strfromf128 F
+GLIBC_2.27 strfromf64x F
 GLIBC_2.27 strtof128 F
 GLIBC_2.27 strtof128_l F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
 GLIBC_2.27 wcstof128 F
 GLIBC_2.27 wcstof128_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
index ff6962d7e7..7065b81c42 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -463,112 +463,216 @@ GLIBC_2.25 ufromfpxf F
 GLIBC_2.25 ufromfpxl F
 GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 acosf128 F
+GLIBC_2.27 acosf64x F
 GLIBC_2.27 acoshf128 F
+GLIBC_2.27 acoshf64x F
 GLIBC_2.27 asinf128 F
+GLIBC_2.27 asinf64x F
 GLIBC_2.27 asinhf128 F
+GLIBC_2.27 asinhf64x F
 GLIBC_2.27 atan2f128 F
+GLIBC_2.27 atan2f64x F
 GLIBC_2.27 atanf128 F
+GLIBC_2.27 atanf64x F
 GLIBC_2.27 atanhf128 F
+GLIBC_2.27 atanhf64x F
 GLIBC_2.27 cabsf128 F
+GLIBC_2.27 cabsf64x F
 GLIBC_2.27 cacosf128 F
+GLIBC_2.27 cacosf64x F
 GLIBC_2.27 cacoshf128 F
+GLIBC_2.27 cacoshf64x F
 GLIBC_2.27 canonicalizef128 F
+GLIBC_2.27 canonicalizef64x F
 GLIBC_2.27 cargf128 F
+GLIBC_2.27 cargf64x F
 GLIBC_2.27 casinf128 F
+GLIBC_2.27 casinf64x F
 GLIBC_2.27 casinhf128 F
+GLIBC_2.27 casinhf64x F
 GLIBC_2.27 catanf128 F
+GLIBC_2.27 catanf64x F
 GLIBC_2.27 catanhf128 F
+GLIBC_2.27 catanhf64x F
 GLIBC_2.27 cbrtf128 F
+GLIBC_2.27 cbrtf64x F
 GLIBC_2.27 ccosf128 F
+GLIBC_2.27 ccosf64x F
 GLIBC_2.27 ccoshf128 F
+GLIBC_2.27 ccoshf64x F
 GLIBC_2.27 ceilf128 F
+GLIBC_2.27 ceilf64x F
 GLIBC_2.27 cexpf128 F
+GLIBC_2.27 cexpf64x F
 GLIBC_2.27 cimagf128 F
+GLIBC_2.27 cimagf64x F
 GLIBC_2.27 clog10f128 F
+GLIBC_2.27 clog10f64x F
 GLIBC_2.27 clogf128 F
+GLIBC_2.27 clogf64x F
 GLIBC_2.27 conjf128 F
+GLIBC_2.27 conjf64x F
 GLIBC_2.27 copysignf128 F
+GLIBC_2.27 copysignf64x F
 GLIBC_2.27 cosf128 F
+GLIBC_2.27 cosf64x F
 GLIBC_2.27 coshf128 F
+GLIBC_2.27 coshf64x F
 GLIBC_2.27 cpowf128 F
+GLIBC_2.27 cpowf64x F
 GLIBC_2.27 cprojf128 F
+GLIBC_2.27 cprojf64x F
 GLIBC_2.27 crealf128 F
+GLIBC_2.27 crealf64x F
 GLIBC_2.27 csinf128 F
+GLIBC_2.27 csinf64x F
 GLIBC_2.27 csinhf128 F
+GLIBC_2.27 csinhf64x F
 GLIBC_2.27 csqrtf128 F
+GLIBC_2.27 csqrtf64x F
 GLIBC_2.27 ctanf128 F
+GLIBC_2.27 ctanf64x F
 GLIBC_2.27 ctanhf128 F
+GLIBC_2.27 ctanhf64x F
 GLIBC_2.27 erfcf128 F
+GLIBC_2.27 erfcf64x F
 GLIBC_2.27 erff128 F
+GLIBC_2.27 erff64x F
 GLIBC_2.27 exp10f128 F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
 GLIBC_2.27 exp2f128 F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
 GLIBC_2.27 expf128 F
+GLIBC_2.27 expf64x F
 GLIBC_2.27 expm1f128 F
+GLIBC_2.27 expm1f64x F
 GLIBC_2.27 fabsf128 F
+GLIBC_2.27 fabsf64x F
 GLIBC_2.27 fdimf128 F
+GLIBC_2.27 fdimf64x F
 GLIBC_2.27 floorf128 F
+GLIBC_2.27 floorf64x F
 GLIBC_2.27 fmaf128 F
+GLIBC_2.27 fmaf64x F
 GLIBC_2.27 fmaxf128 F
+GLIBC_2.27 fmaxf64x F
 GLIBC_2.27 fmaxmagf128 F
+GLIBC_2.27 fmaxmagf64x F
 GLIBC_2.27 fminf128 F
+GLIBC_2.27 fminf64x F
 GLIBC_2.27 fminmagf128 F
+GLIBC_2.27 fminmagf64x F
 GLIBC_2.27 fmodf128 F
+GLIBC_2.27 fmodf64x F
 GLIBC_2.27 frexpf128 F
+GLIBC_2.27 frexpf64x F
 GLIBC_2.27 fromfpf128 F
+GLIBC_2.27 fromfpf64x F
 GLIBC_2.27 fromfpxf128 F
+GLIBC_2.27 fromfpxf64x F
 GLIBC_2.27 getpayloadf128 F
+GLIBC_2.27 getpayloadf64x F
 GLIBC_2.27 hypotf128 F
+GLIBC_2.27 hypotf64x F
 GLIBC_2.27 ilogbf128 F
+GLIBC_2.27 ilogbf64x F
 GLIBC_2.27 j0f128 F
+GLIBC_2.27 j0f64x F
 GLIBC_2.27 j1f128 F
+GLIBC_2.27 j1f64x F
 GLIBC_2.27 jnf128 F
+GLIBC_2.27 jnf64x F
 GLIBC_2.27 ldexpf128 F
+GLIBC_2.27 ldexpf64x F
 GLIBC_2.27 lgammaf128 F
 GLIBC_2.27 lgammaf128_r F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
 GLIBC_2.27 llogbf128 F
+GLIBC_2.27 llogbf64x F
 GLIBC_2.27 llrintf128 F
+GLIBC_2.27 llrintf64x F
 GLIBC_2.27 llroundf128 F
+GLIBC_2.27 llroundf64x F
 GLIBC_2.27 log10f128 F
+GLIBC_2.27 log10f64x F
 GLIBC_2.27 log1pf128 F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
 GLIBC_2.27 log2f128 F
+GLIBC_2.27 log2f64x F
 GLIBC_2.27 logbf128 F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
 GLIBC_2.27 logf128 F
+GLIBC_2.27 logf64x F
 GLIBC_2.27 lrintf128 F
+GLIBC_2.27 lrintf64x F
 GLIBC_2.27 lroundf128 F
+GLIBC_2.27 lroundf64x F
 GLIBC_2.27 modff128 F
+GLIBC_2.27 modff64x F
 GLIBC_2.27 nanf128 F
+GLIBC_2.27 nanf64x F
 GLIBC_2.27 nearbyintf128 F
+GLIBC_2.27 nearbyintf64x F
 GLIBC_2.27 nextafterf128 F
+GLIBC_2.27 nextafterf64x F
 GLIBC_2.27 nextdownf128 F
+GLIBC_2.27 nextdownf64x F
 GLIBC_2.27 nextupf128 F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
 GLIBC_2.27 powf128 F
+GLIBC_2.27 powf64x F
 GLIBC_2.27 remainderf128 F
+GLIBC_2.27 remainderf64x F
 GLIBC_2.27 remquof128 F
+GLIBC_2.27 remquof64x F
 GLIBC_2.27 rintf128 F
+GLIBC_2.27 rintf64x F
 GLIBC_2.27 roundevenf128 F
+GLIBC_2.27 roundevenf64x F
 GLIBC_2.27 roundf128 F
+GLIBC_2.27 roundf64x F
 GLIBC_2.27 scalblnf128 F
+GLIBC_2.27 scalblnf64x F
 GLIBC_2.27 scalbnf128 F
+GLIBC_2.27 scalbnf64x F
 GLIBC_2.27 setpayloadf128 F
+GLIBC_2.27 setpayloadf64x F
 GLIBC_2.27 setpayloadsigf128 F
+GLIBC_2.27 setpayloadsigf64x F
 GLIBC_2.27 sincosf128 F
+GLIBC_2.27 sincosf64x F
 GLIBC_2.27 sinf128 F
+GLIBC_2.27 sinf64x F
 GLIBC_2.27 sinhf128 F
+GLIBC_2.27 sinhf64x F
 GLIBC_2.27 sqrtf128 F
+GLIBC_2.27 sqrtf64x F
 GLIBC_2.27 tanf128 F
+GLIBC_2.27 tanf64x F
 GLIBC_2.27 tanhf128 F
+GLIBC_2.27 tanhf64x F
 GLIBC_2.27 tgammaf128 F
+GLIBC_2.27 tgammaf64x F
 GLIBC_2.27 totalorderf128 F
+GLIBC_2.27 totalorderf64x F
 GLIBC_2.27 totalordermagf128 F
+GLIBC_2.27 totalordermagf64x F
 GLIBC_2.27 truncf128 F
+GLIBC_2.27 truncf64x F
 GLIBC_2.27 ufromfpf128 F
+GLIBC_2.27 ufromfpf64x F
 GLIBC_2.27 ufromfpxf128 F
+GLIBC_2.27 ufromfpxf64x F
 GLIBC_2.27 y0f128 F
+GLIBC_2.27 y0f64x F
 GLIBC_2.27 y1f128 F
+GLIBC_2.27 y1f64x F
 GLIBC_2.27 ynf128 F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index 0a4f7797ac..9c4b53b416 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -1878,6 +1878,11 @@ GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
+GLIBC_2.27 strfromf64x F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
 GLIBC_2.3 GLIBC_2.3 A
 GLIBC_2.3 __ctype_b_loc F
 GLIBC_2.3 __ctype_tolower_loc F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index 201c2ab1b1..8a35d3c494 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -601,9 +601,113 @@ GLIBC_2.26 y0f128 F
 GLIBC_2.26 y1f128 F
 GLIBC_2.26 ynf128 F
 GLIBC_2.27 GLIBC_2.27 A
+GLIBC_2.27 acosf64x F
+GLIBC_2.27 acoshf64x F
+GLIBC_2.27 asinf64x F
+GLIBC_2.27 asinhf64x F
+GLIBC_2.27 atan2f64x F
+GLIBC_2.27 atanf64x F
+GLIBC_2.27 atanhf64x F
+GLIBC_2.27 cabsf64x F
+GLIBC_2.27 cacosf64x F
+GLIBC_2.27 cacoshf64x F
+GLIBC_2.27 canonicalizef64x F
+GLIBC_2.27 cargf64x F
+GLIBC_2.27 casinf64x F
+GLIBC_2.27 casinhf64x F
+GLIBC_2.27 catanf64x F
+GLIBC_2.27 catanhf64x F
+GLIBC_2.27 cbrtf64x F
+GLIBC_2.27 ccosf64x F
+GLIBC_2.27 ccoshf64x F
+GLIBC_2.27 ceilf64x F
+GLIBC_2.27 cexpf64x F
+GLIBC_2.27 cimagf64x F
+GLIBC_2.27 clog10f64x F
+GLIBC_2.27 clogf64x F
+GLIBC_2.27 conjf64x F
+GLIBC_2.27 copysignf64x F
+GLIBC_2.27 cosf64x F
+GLIBC_2.27 coshf64x F
+GLIBC_2.27 cpowf64x F
+GLIBC_2.27 cprojf64x F
+GLIBC_2.27 crealf64x F
+GLIBC_2.27 csinf64x F
+GLIBC_2.27 csinhf64x F
+GLIBC_2.27 csqrtf64x F
+GLIBC_2.27 ctanf64x F
+GLIBC_2.27 ctanhf64x F
+GLIBC_2.27 erfcf64x F
+GLIBC_2.27 erff64x F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
+GLIBC_2.27 expf64x F
+GLIBC_2.27 expm1f64x F
+GLIBC_2.27 fabsf64x F
+GLIBC_2.27 fdimf64x F
+GLIBC_2.27 floorf64x F
+GLIBC_2.27 fmaf64x F
+GLIBC_2.27 fmaxf64x F
+GLIBC_2.27 fmaxmagf64x F
+GLIBC_2.27 fminf64x F
+GLIBC_2.27 fminmagf64x F
+GLIBC_2.27 fmodf64x F
+GLIBC_2.27 frexpf64x F
+GLIBC_2.27 fromfpf64x F
+GLIBC_2.27 fromfpxf64x F
+GLIBC_2.27 getpayloadf64x F
+GLIBC_2.27 hypotf64x F
+GLIBC_2.27 ilogbf64x F
+GLIBC_2.27 j0f64x F
+GLIBC_2.27 j1f64x F
+GLIBC_2.27 jnf64x F
+GLIBC_2.27 ldexpf64x F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
+GLIBC_2.27 llogbf64x F
+GLIBC_2.27 llrintf64x F
+GLIBC_2.27 llroundf64x F
+GLIBC_2.27 log10f64x F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
+GLIBC_2.27 log2f64x F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
+GLIBC_2.27 logf64x F
+GLIBC_2.27 lrintf64x F
+GLIBC_2.27 lroundf64x F
+GLIBC_2.27 modff64x F
+GLIBC_2.27 nanf64x F
+GLIBC_2.27 nearbyintf64x F
+GLIBC_2.27 nextafterf64x F
+GLIBC_2.27 nextdownf64x F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
+GLIBC_2.27 powf64x F
+GLIBC_2.27 remainderf64x F
+GLIBC_2.27 remquof64x F
+GLIBC_2.27 rintf64x F
+GLIBC_2.27 roundevenf64x F
+GLIBC_2.27 roundf64x F
+GLIBC_2.27 scalblnf64x F
+GLIBC_2.27 scalbnf64x F
+GLIBC_2.27 setpayloadf64x F
+GLIBC_2.27 setpayloadsigf64x F
+GLIBC_2.27 sincosf64x F
+GLIBC_2.27 sinf64x F
+GLIBC_2.27 sinhf64x F
+GLIBC_2.27 sqrtf64x F
+GLIBC_2.27 tanf64x F
+GLIBC_2.27 tanhf64x F
+GLIBC_2.27 tgammaf64x F
+GLIBC_2.27 totalorderf64x F
+GLIBC_2.27 totalordermagf64x F
+GLIBC_2.27 truncf64x F
+GLIBC_2.27 ufromfpf64x F
+GLIBC_2.27 ufromfpxf64x F
+GLIBC_2.27 y0f64x F
+GLIBC_2.27 y1f64x F
+GLIBC_2.27 ynf64x F
 GLIBC_2.4 GLIBC_2.4 A
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index 23f6a91429..7a179a5ff6 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2121,3 +2121,8 @@ GLIBC_2.27 GLIBC_2.27 A
 GLIBC_2.27 glob F
 GLIBC_2.27 glob64 F
 GLIBC_2.27 memfd_create F
+GLIBC_2.27 strfromf64x F
+GLIBC_2.27 strtof64x F
+GLIBC_2.27 strtof64x_l F
+GLIBC_2.27 wcstof64x F
+GLIBC_2.27 wcstof64x_l F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index 10e389a96a..f18420484c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -600,8 +600,112 @@ GLIBC_2.26 y0f128 F
 GLIBC_2.26 y1f128 F
 GLIBC_2.26 ynf128 F
 GLIBC_2.27 GLIBC_2.27 A
+GLIBC_2.27 acosf64x F
+GLIBC_2.27 acoshf64x F
+GLIBC_2.27 asinf64x F
+GLIBC_2.27 asinhf64x F
+GLIBC_2.27 atan2f64x F
+GLIBC_2.27 atanf64x F
+GLIBC_2.27 atanhf64x F
+GLIBC_2.27 cabsf64x F
+GLIBC_2.27 cacosf64x F
+GLIBC_2.27 cacoshf64x F
+GLIBC_2.27 canonicalizef64x F
+GLIBC_2.27 cargf64x F
+GLIBC_2.27 casinf64x F
+GLIBC_2.27 casinhf64x F
+GLIBC_2.27 catanf64x F
+GLIBC_2.27 catanhf64x F
+GLIBC_2.27 cbrtf64x F
+GLIBC_2.27 ccosf64x F
+GLIBC_2.27 ccoshf64x F
+GLIBC_2.27 ceilf64x F
+GLIBC_2.27 cexpf64x F
+GLIBC_2.27 cimagf64x F
+GLIBC_2.27 clog10f64x F
+GLIBC_2.27 clogf64x F
+GLIBC_2.27 conjf64x F
+GLIBC_2.27 copysignf64x F
+GLIBC_2.27 cosf64x F
+GLIBC_2.27 coshf64x F
+GLIBC_2.27 cpowf64x F
+GLIBC_2.27 cprojf64x F
+GLIBC_2.27 crealf64x F
+GLIBC_2.27 csinf64x F
+GLIBC_2.27 csinhf64x F
+GLIBC_2.27 csqrtf64x F
+GLIBC_2.27 ctanf64x F
+GLIBC_2.27 ctanhf64x F
+GLIBC_2.27 erfcf64x F
+GLIBC_2.27 erff64x F
+GLIBC_2.27 exp10f64x F
 GLIBC_2.27 exp2f F
+GLIBC_2.27 exp2f64x F
 GLIBC_2.27 expf F
+GLIBC_2.27 expf64x F
+GLIBC_2.27 expm1f64x F
+GLIBC_2.27 fabsf64x F
+GLIBC_2.27 fdimf64x F
+GLIBC_2.27 floorf64x F
+GLIBC_2.27 fmaf64x F
+GLIBC_2.27 fmaxf64x F
+GLIBC_2.27 fmaxmagf64x F
+GLIBC_2.27 fminf64x F
+GLIBC_2.27 fminmagf64x F
+GLIBC_2.27 fmodf64x F
+GLIBC_2.27 frexpf64x F
+GLIBC_2.27 fromfpf64x F
+GLIBC_2.27 fromfpxf64x F
+GLIBC_2.27 getpayloadf64x F
+GLIBC_2.27 hypotf64x F
+GLIBC_2.27 ilogbf64x F
+GLIBC_2.27 j0f64x F
+GLIBC_2.27 j1f64x F
+GLIBC_2.27 jnf64x F
+GLIBC_2.27 ldexpf64x F
+GLIBC_2.27 lgammaf64x F
+GLIBC_2.27 lgammaf64x_r F
+GLIBC_2.27 llogbf64x F
+GLIBC_2.27 llrintf64x F
+GLIBC_2.27 llroundf64x F
+GLIBC_2.27 log10f64x F
+GLIBC_2.27 log1pf64x F
 GLIBC_2.27 log2f F
+GLIBC_2.27 log2f64x F
+GLIBC_2.27 logbf64x F
 GLIBC_2.27 logf F
+GLIBC_2.27 logf64x F
+GLIBC_2.27 lrintf64x F
+GLIBC_2.27 lroundf64x F
+GLIBC_2.27 modff64x F
+GLIBC_2.27 nanf64x F
+GLIBC_2.27 nearbyintf64x F
+GLIBC_2.27 nextafterf64x F
+GLIBC_2.27 nextdownf64x F
+GLIBC_2.27 nextupf64x F
 GLIBC_2.27 powf F
+GLIBC_2.27 powf64x F
+GLIBC_2.27 remainderf64x F
+GLIBC_2.27 remquof64x F
+GLIBC_2.27 rintf64x F
+GLIBC_2.27 roundevenf64x F
+GLIBC_2.27 roundf64x F
+GLIBC_2.27 scalblnf64x F
+GLIBC_2.27 scalbnf64x F
+GLIBC_2.27 setpayloadf64x F
+GLIBC_2.27 setpayloadsigf64x F
+GLIBC_2.27 sincosf64x F
+GLIBC_2.27 sinf64x F
+GLIBC_2.27 sinhf64x F
+GLIBC_2.27 sqrtf64x F
+GLIBC_2.27 tanf64x F
+GLIBC_2.27 tanhf64x F
+GLIBC_2.27 tgammaf64x F
+GLIBC_2.27 totalorderf64x F
+GLIBC_2.27 totalordermagf64x F
+GLIBC_2.27 truncf64x F
+GLIBC_2.27 ufromfpf64x F
+GLIBC_2.27 ufromfpxf64x F
+GLIBC_2.27 y0f64x F
+GLIBC_2.27 y1f64x F
+GLIBC_2.27 ynf64x F