float128: Add _Float128 make bits to libm.

This adds the appropriate common bits for a platform to
enable float128 and expose ABI.

	* math/Makefile:
	(type-float128-suffix): New variable
	(type-float128-routines): Likewise
	(type-float128-yes): Likewise
	(types): Append float128 if supported
	(types-basic): New variable to control the use of templates for
	float, double, and long double, but not for float128 or newer types.
	(type-basic-foreach): Likewise.

	* sysdeps/ieee754/float128/Makeconfig: New file.
	* sysdeps/ieee754/float128/Versions: New file.

2 files changed, 148 insertions, 0 deletions

diff --git a/sysdeps/ieee754/float128/Makeconfig b/sysdeps/ieee754/float128/Makeconfig
new file mode 100644
index 0000000000..6c385d2df2
--- /dev/null
+++ b/sysdeps/ieee754/float128/Makeconfig
@@ -0,0 +1,3 @@
+# Include this earlier so it can be used earlier in Makefiles,
+# and sysdep/ makefiles.
+float128-fcts = yes
diff --git a/sysdeps/ieee754/float128/Versions b/sysdeps/ieee754/float128/Versions
new file mode 100644
index 0000000000..9f431d920e
--- /dev/null
+++ b/sysdeps/ieee754/float128/Versions
@@ -0,0 +1,145 @@
+%include <float128-abi.h>
+%ifndef FLOAT128_VERSION
+% error "float128-abi.h must define FLOAT128_VERSION"
+%endif
+libm {
+  FLOAT128_VERSION {
+    __acosf128_finite;
+    __acoshf128_finite;
+    __asinf128_finite;
+    __atan2f128_finite;
+    __atanhf128_finite;
+    __coshf128_finite;
+    __exp10f128_finite;
+    __exp2f128_finite;
+    __expf128_finite;
+    __finitef128;
+    __fmodf128_finite;
+    __fpclassifyf128;
+    __gammaf128_r_finite;
+    __hypotf128_finite;
+    __iseqsigf128;
+    __isinff128;
+    __isnanf128;
+    __issignalingf128;
+    __j0f128_finite;
+    __j1f128_finite;
+    __jnf128_finite;
+    __lgammaf128_r_finite;
+    __log10f128_finite;
+    __log2f128_finite;
+    __logf128_finite;
+    __powf128_finite;
+    __remainderf128_finite;
+    __signbitf128;
+    __sinhf128_finite;
+    __sqrtf128_finite;
+    __y0f128_finite;
+    __y1f128_finite;
+    __ynf128_finite;
+    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;
+  }
+}