On Thu, Nov 18, 2021 at 10:28:03PM +0000, Joseph Myers wrote:
> On Sat, 13 Nov 2021, Stafford Horne via Libc-alpha wrote:
>
> > diff --git a/sysdeps/or1k/bits/fenv.h b/sysdeps/or1k/bits/fenv.h
> > new file mode 100644
> > index 0000000000..49194ad851
> > --- /dev/null
> > +++ b/sysdeps/or1k/bits/fenv.h
> > @@ -0,0 +1,68 @@
> > +/* Copyright (C) 2021 Free Software Foundation, Inc.
>
> Missing one-line description at start of file.
OK Added for v3.
> The constants you're defining here seem to be specific to hard float, but
> they're defined unconditionally. Is this because you use the same ABI for
> hard float and soft float (which is generally the case when such hard
> float constants might be defined for soft float as well - a soft float
> compilation could be using a hard float libc that supports those
> constants)?
Yes, it's the same ABI. I have patches for hard float but am not submitting
until the Linux side is sorted out as mentioned in the comment. It seems
delcairing these conditionally was normal, hence I didn't mention anything about
it.
I didn't think as far as allowing for shared libc usage between soft/float
float, but I think that would work.
> > +/* Define bits representing exceptions in the FPCSR status word. */
> > +enum
> > + {
> > + FE_OVERFLOW =
> > +#define FE_OVERFLOW 1 << 3
>
> Macros need to be properly surrounded by parentheses so they always group
> as a single operand in any expression.
>
> > +#define FP_EX_OVERFLOW 1 << 3
> > +#define FP_EX_UNDERFLOW 1 << 4
> > +#define FP_EX_INEXACT 1 << 8
> > +#define FP_EX_INVALID 1 << 9
> > +#define FP_EX_DIVZERO 1 << 11
>
> Likewise in sfp-machine.h.
OK, I have cleaned those up.
> --
> Joseph S. Myers
> joseph@codesourcery.com
new file mode 100644
@@ -0,0 +1,68 @@
+/* Copyright (C) 2021 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* Define bits representing exceptions in the FPCSR status word. */
+enum
+ {
+ FE_OVERFLOW =
+#define FE_OVERFLOW 1 << 3
+ FE_OVERFLOW,
+ FE_UNDERFLOW =
+#define FE_UNDERFLOW 1 << 4
+ FE_UNDERFLOW,
+ FE_INEXACT =
+#define FE_INEXACT 1 << 8
+ FE_INEXACT,
+ FE_INVALID =
+#define FE_INVALID 1 << 9
+ FE_INVALID,
+ FE_DIVBYZERO =
+#define FE_DIVBYZERO 1 << 11
+ FE_DIVBYZERO,
+ };
+
+/* All supported exceptions. */
+#define FE_ALL_EXCEPT \
+ (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
+
+/* Define bits representing rounding modes in the FPCSR Rmode field. */
+#define FE_TONEAREST (0x0 << 1)
+#define FE_TOWARDZERO (0x1 << 1)
+#define FE_UPWARD (0x2 << 1)
+#define FE_DOWNWARD (0x3 << 1)
+
+/* Type representing exception flags. */
+typedef unsigned int fexcept_t;
+
+/* Type representing floating-point environment. */
+typedef unsigned int fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((const fenv_t *) -1l)
+
+#if __GLIBC_USE (IEC_60559_BFP_EXT)
+/* Type representing floating-point control modes. */
+typedef unsigned int femode_t;
+
+/* Default floating-point control modes. */
+# define FE_DFL_MODE ((const femode_t *) -1L)
+#endif
new file mode 100644
@@ -0,0 +1,1112 @@
+# Begin of automatic generation
+
+# Maximal error of functions:
+Function: "acos":
+double: 1
+float: 1
+
+Function: "acos_downward":
+double: 1
+float: 1
+
+Function: "acos_towardzero":
+double: 1
+float: 1
+
+Function: "acos_upward":
+double: 1
+float: 1
+
+Function: "acosh":
+double: 2
+float: 2
+
+Function: "acosh_downward":
+double: 2
+float: 2
+
+Function: "acosh_towardzero":
+double: 2
+float: 2
+
+Function: "acosh_upward":
+double: 2
+float: 2
+
+Function: "asin":
+double: 1
+float: 1
+
+Function: "asin_downward":
+double: 1
+float: 1
+
+Function: "asin_towardzero":
+double: 1
+float: 1
+
+Function: "asin_upward":
+double: 1
+float: 1
+
+Function: "asinh":
+double: 2
+float: 2
+
+Function: "asinh_downward":
+double: 3
+float: 3
+
+Function: "asinh_towardzero":
+double: 2
+float: 2
+
+Function: "asinh_upward":
+double: 3
+float: 3
+
+Function: "atan":
+double: 1
+float: 1
+
+Function: "atan2":
+float: 2
+
+Function: "atan2_downward":
+double: 5
+float: 2
+
+Function: "atan2_towardzero":
+double: 5
+float: 2
+
+Function: "atan2_upward":
+double: 8
+float: 2
+
+Function: "atan_downward":
+double: 1
+float: 2
+
+Function: "atan_towardzero":
+double: 1
+float: 1
+
+Function: "atan_upward":
+double: 1
+float: 2
+
+Function: "atanh":
+double: 2
+float: 2
+
+Function: "atanh_downward":
+double: 3
+float: 3
+
+Function: "atanh_towardzero":
+double: 2
+float: 2
+
+Function: "atanh_upward":
+double: 3
+float: 3
+
+Function: "cabs":
+double: 1
+
+Function: "cabs_downward":
+double: 1
+
+Function: "cabs_towardzero":
+double: 1
+
+Function: "cabs_upward":
+double: 1
+
+Function: Real part of "cacos":
+double: 1
+float: 2
+
+Function: Imaginary part of "cacos":
+double: 2
+float: 2
+
+Function: Real part of "cacos_downward":
+double: 3
+float: 2
+
+Function: Imaginary part of "cacos_downward":
+double: 5
+float: 3
+
+Function: Real part of "cacos_towardzero":
+double: 3
+float: 2
+
+Function: Imaginary part of "cacos_towardzero":
+double: 4
+float: 2
+
+Function: Real part of "cacos_upward":
+double: 2
+float: 2
+
+Function: Imaginary part of "cacos_upward":
+double: 5
+float: 7
+
+Function: Real part of "cacosh":
+double: 2
+float: 2
+
+Function: Imaginary part of "cacosh":
+double: 1
+float: 2
+
+Function: Real part of "cacosh_downward":
+double: 4
+float: 2
+
+Function: Imaginary part of "cacosh_downward":
+double: 3
+float: 3
+
+Function: Real part of "cacosh_towardzero":
+double: 4
+float: 2
+
+Function: Imaginary part of "cacosh_towardzero":
+double: 3
+float: 2
+
+Function: Real part of "cacosh_upward":
+double: 4
+float: 3
+
+Function: Imaginary part of "cacosh_upward":
+double: 3
+float: 2
+
+Function: "carg":
+float: 1
+
+Function: "carg_downward":
+double: 5
+float: 2
+
+Function: "carg_towardzero":
+double: 5
+float: 2
+
+Function: "carg_upward":
+double: 8
+float: 2
+
+Function: Real part of "casin":
+double: 1
+float: 1
+
+Function: Imaginary part of "casin":
+double: 2
+float: 2
+
+Function: Real part of "casin_downward":
+double: 3
+float: 2
+
+Function: Imaginary part of "casin_downward":
+double: 5
+float: 3
+
+Function: Real part of "casin_towardzero":
+double: 3
+float: 1
+
+Function: Imaginary part of "casin_towardzero":
+double: 4
+float: 2
+
+Function: Real part of "casin_upward":
+double: 3
+float: 2
+
+Function: Imaginary part of "casin_upward":
+double: 5
+float: 7
+
+Function: Real part of "casinh":
+double: 2
+float: 2
+
+Function: Imaginary part of "casinh":
+double: 1
+float: 1
+
+Function: Real part of "casinh_downward":
+double: 5
+float: 3
+
+Function: Imaginary part of "casinh_downward":
+double: 3
+float: 2
+
+Function: Real part of "casinh_towardzero":
+double: 4
+float: 2
+
+Function: Imaginary part of "casinh_towardzero":
+double: 3
+float: 1
+
+Function: Real part of "casinh_upward":
+double: 5
+float: 7
+
+Function: Imaginary part of "casinh_upward":
+double: 3
+float: 2
+
+Function: Real part of "catan":
+double: 1
+float: 1
+
+Function: Imaginary part of "catan":
+double: 1
+float: 1
+
+Function: Real part of "catan_downward":
+double: 1
+float: 2
+
+Function: Imaginary part of "catan_downward":
+double: 2
+float: 2
+
+Function: Real part of "catan_towardzero":
+double: 1
+float: 2
+
+Function: Imaginary part of "catan_towardzero":
+double: 2
+float: 2
+
+Function: Real part of "catan_upward":
+double: 2
+float: 1
+
+Function: Imaginary part of "catan_upward":
+double: 2
+float: 2
+
+Function: Real part of "catanh":
+double: 1
+float: 1
+
+Function: Imaginary part of "catanh":
+double: 1
+float: 1
+
+Function: Real part of "catanh_downward":
+double: 2
+float: 2
+
+Function: Imaginary part of "catanh_downward":
+double: 1
+float: 2
+
+Function: Real part of "catanh_towardzero":
+double: 2
+float: 2
+
+Function: Imaginary part of "catanh_towardzero":
+double: 1
+float: 2
+
+Function: Real part of "catanh_upward":
+double: 4
+float: 4
+
+Function: Imaginary part of "catanh_upward":
+double: 2
+float: 1
+
+Function: "cbrt":
+double: 4
+float: 1
+
+Function: "cbrt_downward":
+double: 4
+float: 1
+
+Function: "cbrt_towardzero":
+double: 3
+float: 1
+
+Function: "cbrt_upward":
+double: 5
+float: 1
+
+Function: Real part of "ccos":
+double: 1
+float: 1
+
+Function: Imaginary part of "ccos":
+double: 1
+float: 1
+
+Function: Real part of "ccos_downward":
+double: 3
+float: 1
+
+Function: Imaginary part of "ccos_downward":
+double: 3
+float: 3
+
+Function: Real part of "ccos_towardzero":
+double: 3
+float: 2
+
+Function: Imaginary part of "ccos_towardzero":
+double: 3
+float: 3
+
+Function: Real part of "ccos_upward":
+double: 1
+float: 2
+
+Function: Imaginary part of "ccos_upward":
+double: 2
+float: 2
+
+Function: Real part of "ccosh":
+double: 2
+float: 1
+
+Function: Imaginary part of "ccosh":
+double: 1
+float: 1
+
+Function: Real part of "ccosh_downward":
+double: 3
+float: 2
+
+Function: Imaginary part of "ccosh_downward":
+double: 3
+float: 3
+
+Function: Real part of "ccosh_towardzero":
+double: 3
+float: 3
+
+Function: Imaginary part of "ccosh_towardzero":
+double: 3
+float: 3
+
+Function: Real part of "ccosh_upward":
+double: 1
+float: 2
+
+Function: Imaginary part of "ccosh_upward":
+double: 2
+float: 2
+
+Function: Real part of "cexp":
+double: 2
+float: 1
+
+Function: Imaginary part of "cexp":
+double: 1
+float: 2
+
+Function: Real part of "cexp_downward":
+double: 4
+float: 2
+
+Function: Imaginary part of "cexp_downward":
+double: 3
+float: 3
+
+Function: Real part of "cexp_towardzero":
+double: 4
+float: 2
+
+Function: Imaginary part of "cexp_towardzero":
+double: 3
+float: 3
+
+Function: Real part of "cexp_upward":
+double: 2
+float: 2
+
+Function: Imaginary part of "cexp_upward":
+double: 3
+float: 2
+
+Function: Real part of "clog":
+double: 3
+float: 3
+
+Function: Imaginary part of "clog":
+double: 1
+float: 1
+
+Function: Real part of "clog10":
+double: 3
+float: 4
+
+Function: Imaginary part of "clog10":
+double: 2
+float: 2
+
+Function: Real part of "clog10_downward":
+double: 7
+float: 5
+
+Function: Imaginary part of "clog10_downward":
+double: 8
+float: 4
+
+Function: Real part of "clog10_towardzero":
+double: 5
+float: 5
+
+Function: Imaginary part of "clog10_towardzero":
+double: 8
+float: 4
+
+Function: Real part of "clog10_upward":
+double: 6
+float: 5
+
+Function: Imaginary part of "clog10_upward":
+double: 5
+float: 4
+
+Function: Real part of "clog_downward":
+double: 4
+float: 3
+
+Function: Imaginary part of "clog_downward":
+double: 5
+float: 2
+
+Function: Real part of "clog_towardzero":
+double: 8
+float: 4
+
+Function: Imaginary part of "clog_towardzero":
+double: 5
+float: 3
+
+Function: Real part of "clog_upward":
+double: 8
+float: 3
+
+Function: Imaginary part of "clog_upward":
+double: 8
+float: 2
+
+Function: "cos":
+double: 1
+float: 1
+
+Function: "cos_downward":
+double: 1
+float: 1
+
+Function: "cos_towardzero":
+double: 4
+float: 1
+
+Function: "cos_upward":
+double: 4
+float: 1
+
+Function: "cosh":
+double: 2
+float: 2
+
+Function: "cosh_downward":
+double: 2
+float: 1
+
+Function: "cosh_towardzero":
+double: 2
+float: 1
+
+Function: "cosh_upward":
+double: 2
+float: 2
+
+Function: Real part of "cpow":
+double: 2
+float: 5
+
+Function: Imaginary part of "cpow":
+float: 2
+
+Function: Real part of "cpow_downward":
+double: 5
+float: 8
+
+Function: Imaginary part of "cpow_downward":
+double: 2
+float: 2
+
+Function: Real part of "cpow_towardzero":
+double: 5
+float: 8
+
+Function: Imaginary part of "cpow_towardzero":
+double: 2
+float: 2
+
+Function: Real part of "cpow_upward":
+double: 4
+float: 1
+
+Function: Imaginary part of "cpow_upward":
+double: 2
+float: 2
+
+Function: Real part of "csin":
+double: 1
+float: 1
+
+Function: Real part of "csin_downward":
+double: 3
+float: 3
+
+Function: Imaginary part of "csin_downward":
+double: 3
+float: 1
+
+Function: Real part of "csin_towardzero":
+double: 3
+float: 3
+
+Function: Imaginary part of "csin_towardzero":
+double: 3
+float: 1
+
+Function: Real part of "csin_upward":
+double: 2
+float: 2
+
+Function: Imaginary part of "csin_upward":
+double: 1
+float: 2
+
+Function: Real part of "csinh":
+float: 1
+
+Function: Imaginary part of "csinh":
+double: 1
+float: 1
+
+Function: Real part of "csinh_downward":
+double: 3
+float: 1
+
+Function: Imaginary part of "csinh_downward":
+double: 3
+float: 3
+
+Function: Real part of "csinh_towardzero":
+double: 3
+float: 2
+
+Function: Imaginary part of "csinh_towardzero":
+double: 3
+float: 3
+
+Function: Real part of "csinh_upward":
+double: 1
+float: 2
+
+Function: Imaginary part of "csinh_upward":
+double: 2
+float: 2
+
+Function: Real part of "csqrt":
+double: 2
+float: 2
+
+Function: Imaginary part of "csqrt":
+double: 2
+float: 2
+
+Function: Real part of "csqrt_downward":
+double: 5
+float: 4
+
+Function: Imaginary part of "csqrt_downward":
+double: 4
+float: 3
+
+Function: Real part of "csqrt_towardzero":
+double: 4
+float: 3
+
+Function: Imaginary part of "csqrt_towardzero":
+double: 4
+float: 3
+
+Function: Real part of "csqrt_upward":
+double: 5
+float: 4
+
+Function: Imaginary part of "csqrt_upward":
+double: 3
+float: 3
+
+Function: Real part of "ctan":
+double: 1
+float: 1
+
+Function: Imaginary part of "ctan":
+double: 2
+float: 2
+
+Function: Real part of "ctan_downward":
+double: 6
+float: 5
+
+Function: Imaginary part of "ctan_downward":
+double: 3
+float: 2
+
+Function: Real part of "ctan_towardzero":
+double: 5
+float: 3
+
+Function: Imaginary part of "ctan_towardzero":
+double: 3
+float: 2
+
+Function: Real part of "ctan_upward":
+double: 2
+float: 4
+
+Function: Imaginary part of "ctan_upward":
+double: 2
+float: 1
+
+Function: Real part of "ctanh":
+double: 2
+float: 2
+
+Function: Imaginary part of "ctanh":
+double: 2
+float: 2
+
+Function: Real part of "ctanh_downward":
+double: 3
+float: 2
+
+Function: Imaginary part of "ctanh_downward":
+double: 6
+float: 5
+
+Function: Real part of "ctanh_towardzero":
+double: 3
+float: 2
+
+Function: Imaginary part of "ctanh_towardzero":
+double: 5
+float: 3
+
+Function: Real part of "ctanh_upward":
+double: 2
+float: 2
+
+Function: Imaginary part of "ctanh_upward":
+double: 2
+float: 3
+
+Function: "erf":
+double: 1
+float: 1
+
+Function: "erf_downward":
+double: 1
+float: 1
+
+Function: "erf_towardzero":
+double: 1
+float: 1
+
+Function: "erf_upward":
+double: 1
+float: 1
+
+Function: "erfc":
+double: 5
+float: 3
+
+Function: "erfc_downward":
+double: 5
+float: 6
+
+Function: "erfc_towardzero":
+double: 3
+float: 4
+
+Function: "erfc_upward":
+double: 5
+float: 6
+
+Function: "exp":
+double: 1
+float: 1
+
+Function: "exp10":
+double: 2
+float: 1
+
+Function: "exp10_downward":
+double: 3
+
+Function: "exp10_towardzero":
+double: 3
+
+Function: "exp10_upward":
+double: 2
+float: 1
+
+Function: "exp2":
+double: 1
+
+Function: "exp2_downward":
+double: 1
+
+Function: "exp2_towardzero":
+double: 1
+
+Function: "exp2_upward":
+double: 1
+float: 1
+
+Function: "exp_downward":
+double: 1
+float: 1
+
+Function: "exp_towardzero":
+double: 1
+float: 1
+
+Function: "exp_upward":
+double: 1
+float: 1
+
+Function: "expm1":
+double: 1
+float: 1
+
+Function: "expm1_downward":
+double: 1
+float: 1
+
+Function: "expm1_towardzero":
+double: 1
+float: 2
+
+Function: "expm1_upward":
+double: 1
+float: 1
+
+Function: "gamma":
+double: 4
+float: 7
+
+Function: "gamma_downward":
+double: 7
+float: 7
+
+Function: "gamma_towardzero":
+double: 7
+float: 7
+
+Function: "gamma_upward":
+double: 5
+float: 6
+
+Function: "hypot":
+double: 1
+
+Function: "hypot_downward":
+double: 1
+
+Function: "hypot_towardzero":
+double: 1
+
+Function: "hypot_upward":
+double: 1
+
+Function: "j0":
+double: 2
+float: 9
+
+Function: "j0_downward":
+double: 2
+float: 4
+
+Function: "j0_towardzero":
+double: 4
+float: 5
+
+Function: "j0_upward":
+double: 4
+float: 5
+
+Function: "j1":
+double: 4
+float: 9
+
+Function: "j1_downward":
+double: 4
+float: 5
+
+Function: "j1_towardzero":
+double: 4
+float: 2
+
+Function: "j1_upward":
+double: 3
+float: 5
+
+Function: "jn":
+double: 4
+float: 4
+
+Function: "jn_downward":
+double: 7
+float: 9
+
+Function: "jn_towardzero":
+double: 7
+float: 9
+
+Function: "jn_upward":
+double: 7
+float: 9
+
+Function: "lgamma":
+double: 4
+float: 7
+
+Function: "lgamma_downward":
+double: 7
+float: 7
+
+Function: "lgamma_towardzero":
+double: 7
+float: 7
+
+Function: "lgamma_upward":
+double: 5
+float: 6
+
+Function: "log10":
+double: 2
+float: 2
+
+Function: "log10_downward":
+double: 2
+float: 3
+
+Function: "log10_towardzero":
+double: 2
+float: 1
+
+Function: "log10_upward":
+double: 2
+float: 2
+
+Function: "log1p":
+double: 1
+float: 1
+
+Function: "log1p_downward":
+double: 2
+float: 2
+
+Function: "log1p_towardzero":
+double: 2
+float: 2
+
+Function: "log1p_upward":
+double: 2
+float: 2
+
+Function: "log2":
+float: 1
+
+Function: "log2_downward":
+double: 1
+
+Function: "log2_towardzero":
+double: 1
+
+Function: "log2_upward":
+double: 1
+
+Function: "pow":
+double: 1
+
+Function: "pow_downward":
+double: 1
+float: 1
+
+Function: "pow_towardzero":
+double: 1
+float: 1
+
+Function: "pow_upward":
+double: 1
+float: 1
+
+Function: "sin":
+double: 1
+float: 1
+
+Function: "sin_downward":
+double: 4
+float: 1
+
+Function: "sin_towardzero":
+double: 3
+float: 1
+
+Function: "sin_upward":
+double: 7
+float: 1
+
+Function: "sincos":
+double: 1
+
+Function: "sincos_downward":
+double: 1
+float: 1
+
+Function: "sincos_towardzero":
+double: 4
+float: 1
+
+Function: "sincos_upward":
+double: 1
+float: 1
+
+Function: "sinh":
+double: 2
+float: 2
+
+Function: "sinh_downward":
+double: 3
+float: 3
+
+Function: "sinh_towardzero":
+double: 2
+float: 2
+
+Function: "sinh_upward":
+double: 3
+float: 3
+
+Function: "tan":
+float: 1
+
+Function: "tan_downward":
+double: 1
+float: 2
+
+Function: "tan_towardzero":
+double: 1
+float: 1
+
+Function: "tan_upward":
+double: 1
+float: 1
+
+Function: "tanh":
+double: 2
+float: 2
+
+Function: "tanh_downward":
+double: 3
+float: 3
+
+Function: "tanh_towardzero":
+double: 2
+float: 2
+
+Function: "tanh_upward":
+double: 3
+float: 3
+
+Function: "tgamma":
+double: 9
+float: 8
+
+Function: "tgamma_downward":
+double: 9
+float: 9
+
+Function: "tgamma_towardzero":
+double: 9
+float: 8
+
+Function: "tgamma_upward":
+double: 9
+float: 8
+
+Function: "y0":
+double: 3
+float: 9
+
+Function: "y0_downward":
+double: 3
+float: 6
+
+Function: "y0_towardzero":
+double: 3
+float: 3
+
+Function: "y0_upward":
+double: 3
+float: 6
+
+Function: "y1":
+double: 3
+float: 9
+
+Function: "y1_downward":
+double: 6
+float: 7
+
+Function: "y1_towardzero":
+double: 3
+float: 3
+
+Function: "y1_upward":
+double: 7
+float: 5
+
+Function: "yn":
+double: 3
+float: 3
+
+Function: "yn_downward":
+double: 6
+float: 8
+
+Function: "yn_towardzero":
+double: 8
+float: 8
+
+Function: "yn_upward":
+double: 8
+float: 8
+
+# end of automatic generation
new file mode 100644
@@ -0,0 +1 @@
+OpenRISC
new file mode 100644
@@ -0,0 +1,29 @@
+/* Configuration for math tests: support for exceptions. OpenRISC no-FPU
+ version.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef OR1K_NOFPU_MATH_TESTS_EXCEPTIONS_H
+#define OR1K_NOFPU_MATH_TESTS_EXCEPTIONS_H 1
+
+/* We support setting floating-point exception flags on hard-float
+ targets. These are not supported on soft-float targets. */
+#define EXCEPTION_TESTS_float 0
+#define EXCEPTION_TESTS_double 0
+#define EXCEPTION_TESTS_long_double 0
+
+#endif /* math-tests-exceptions.h. */
new file mode 100644
@@ -0,0 +1,28 @@
+/* Configuration for math tests: rounding mode support. OpenRISC no-FPU
+ version.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef OR1K_NOFPU_MATH_TESTS_ROUNDING_H
+#define OR1K_NOFPU_MATH_TESTS_ROUNDING_H 1
+
+/* On soft-float targets we only support the "to nearest" rounding mode. */
+#define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
+#define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
+#define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
+
+#endif /* math-tests-rounding.h. */
new file mode 100644
@@ -0,0 +1,93 @@
+/* OpenRISC softfloat definitions.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <https://www.gnu.org/licenses/>. */
+
+#define _FP_W_TYPE_SIZE 32
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_MUL_MEAT_DW_S(R,X,Y) \
+ _FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_D(R,X,Y) \
+ _FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
+ _FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S 0
+#define _FP_NANSIGN_D 0
+#define _FP_NANSIGN_Q 0
+
+#define _FP_KEEPNANFRACP 1
+#define _FP_QNANNEGATEDP 0
+
+/* Someone please check this. */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
+ && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ else \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+/* Handle getting and setting rounding mode for soft fp operations. */
+
+#define FP_RND_NEAREST (0x0 << 1)
+#define FP_RND_ZERO (0x1 << 1)
+#define FP_RND_PINF (0x2 << 1)
+#define FP_RND_MINF (0x3 << 1)
+#define FP_RND_MASK (0x3 << 1)
+
+#define FP_EX_OVERFLOW 1 << 3
+#define FP_EX_UNDERFLOW 1 << 4
+#define FP_EX_INEXACT 1 << 8
+#define FP_EX_INVALID 1 << 9
+#define FP_EX_DIVZERO 1 << 11
+#define FP_EX_ALL \
+ (FP_EX_INVALID | FP_EX_DIVZERO | FP_EX_OVERFLOW | FP_EX_UNDERFLOW \
+ | FP_EX_INEXACT)
+
+#define _FP_DECL_EX \
+ unsigned int _fpcsr __attribute__ ((unused)) = FP_RND_NEAREST
+
+#define FP_ROUNDMODE (_fpcsr & FP_RND_MASK)
+
+#define _FP_TININESS_AFTER_ROUNDING 0
new file mode 100644
@@ -0,0 +1 @@
+#define TININESS_AFTER_ROUNDING 1