From Alex von Gluck IV <kallisti5@xxxxxxxxxxx>:
Alex von Gluck IV has uploaded this change for review. (
https://review.haiku-os.org/c/haiku/+/2164 ;)
Change subject: riscv64: Add missing (slightly modified) fenv.h from FreeBSD
......................................................................
riscv64: Add missing (slightly modified) fenv.h from FreeBSD
* A few tips for future folks follows.
* fenv.h gets wrapped in our buildtools
* If anything in the arch fenv.h "doesn't work" buildtools
will silently fail early on (autotools HAVE_FENV_H)
Change-Id: Icae064fde42af3bbed5ea2eadfaa8c18c677e6a6
---
A headers/posix/arch/riscv64/fenv.h
M headers/posix/fenv.h
A src/system/libroot/posix/musl/math/riscv64/Jamfile
3 files changed, 364 insertions(+), 0 deletions(-)
git pull ssh://git.haiku-os.org:22/haiku refs/changes/64/2164/1
diff --git a/headers/posix/arch/riscv64/fenv.h
b/headers/posix/arch/riscv64/fenv.h
new file mode 100644
index 0000000..5d2776c
--- /dev/null
+++ b/headers/posix/arch/riscv64/fenv.h
@@ -0,0 +1,262 @@
+/*-
+ * Copyright (c) 2004-2005 David Schultz <das@xxxxxxxxxxx>
+ * Copyright (c) 2015-2016 Ruslan Bukin <br@xxxxxxxxxx>
+ * All rights reserved.
+ *
+ * Portions of this software were developed by SRI International and the
+ * University of Cambridge Computer Laboratory under DARPA/AFRL contract
+ * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Portions of this software were developed by the University of Cambridge
+ * Computer Laboratory as part of the CTSRD Project, with support from the
+ * UK Higher Education Innovation Fund (HEIF).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _FENV_H_
+#define _FENV_H_
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#ifndef __fenv_static
+#define __fenv_static static
+#endif
+
+typedef uint64_t fenv_t;
+typedef uint64_t fexcept_t;
+
+/* Exception flags */
+#define FE_INVALID 0x0010
+#define FE_DIVBYZERO 0x0008
+#define FE_OVERFLOW 0x0004
+#define FE_UNDERFLOW 0x0002
+#define FE_INEXACT 0x0001
+#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
+ FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
+
+/*
+ * RISC-V Rounding modes
+ */
+#define _ROUND_SHIFT 5
+#define FE_TONEAREST (0x00 << _ROUND_SHIFT)
+#define FE_TOWARDZERO (0x01 << _ROUND_SHIFT)
+#define FE_DOWNWARD (0x02 << _ROUND_SHIFT)
+#define FE_UPWARD (0x03 << _ROUND_SHIFT)
+#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
+ FE_UPWARD | FE_TOWARDZERO)
+
+__BEGIN_DECLS
+
+/* Default floating-point environment */
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV (&__fe_dfl_env)
+
+#if !defined(__riscv_float_abi_soft) && !defined(__riscv_float_abi_double)
+#if defined(__riscv_float_abi_single)
+#error single precision floating point ABI not supported
+#else
+#error compiler did not set soft/hard float macros
+#endif
+#endif
+
+#ifndef __riscv_float_abi_soft
+#define __rfs(__fcsr) __asm __volatile("csrr %0, fcsr" : "=r"
(__fcsr))
+#define __wfs(__fcsr) __asm __volatile("csrw fcsr, %0" :: "r"
(__fcsr))
+#endif
+
+#ifdef __riscv_float_abi_soft
+int feclearexcept(int __excepts);
+int fegetexceptflag(fexcept_t *__flagp, int __excepts);
+int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
+int feraiseexcept(int __excepts);
+int fetestexcept(int __excepts);
+int fegetround(void);
+int fesetround(int __round);
+int fegetenv(fenv_t *__envp);
+int feholdexcept(fenv_t *__envp);
+int fesetenv(const fenv_t *__envp);
+int feupdateenv(const fenv_t *__envp);
+#else
+__fenv_static inline int
+feclearexcept(int __excepts)
+{
+
+ __asm __volatile("csrc fflags, %0" :: "r"(__excepts));
+
+ return (0);
+}
+
+__fenv_static inline int
+fegetexceptflag(fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fcsr;
+
+ __rfs(__fcsr);
+ *__flagp = __fcsr & __excepts;
+
+ return (0);
+}
+
+__fenv_static inline int
+fesetexceptflag(const fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fcsr;
+
+ __fcsr = *__flagp;
+ __asm __volatile("csrc fflags, %0" :: "r"(__excepts));
+ __asm __volatile("csrs fflags, %0" :: "r"(__fcsr & __excepts));
+
+ return (0);
+}
+
+__fenv_static inline int
+feraiseexcept(int __excepts)
+{
+
+ __asm __volatile("csrs fflags, %0" :: "r"(__excepts));
+
+ return (0);
+}
+
+__fenv_static inline int
+fetestexcept(int __excepts)
+{
+ fexcept_t __fcsr;
+
+ __rfs(__fcsr);
+
+ return (__fcsr & __excepts);
+}
+
+__fenv_static inline int
+fegetround(void)
+{
+ fexcept_t __fcsr;
+
+ __rfs(__fcsr);
+
+ return (__fcsr & _ROUND_MASK);
+}
+
+__fenv_static inline int
+fesetround(int __round)
+{
+ fexcept_t __fcsr;
+
+ if (__round & ~_ROUND_MASK)
+ return (-1);
+
+ __rfs(__fcsr);
+ __fcsr &= ~_ROUND_MASK;
+ __fcsr |= __round;
+ __wfs(__fcsr);
+
+ return (0);
+}
+
+__fenv_static inline int
+fegetenv(fenv_t *__envp)
+{
+
+ __rfs(*__envp);
+
+ return (0);
+}
+
+__fenv_static inline int
+feholdexcept(fenv_t *__envp)
+{
+
+ /* No exception traps. */
+
+ return (-1);
+}
+
+__fenv_static inline int
+fesetenv(const fenv_t *__envp)
+{
+
+ __wfs(*__envp);
+
+ return (0);
+}
+
+__fenv_static inline int
+feupdateenv(const fenv_t *__envp)
+{
+ fexcept_t __fcsr;
+
+ __rfs(__fcsr);
+ __wfs(*__envp);
+ feraiseexcept(__fcsr & FE_ALL_EXCEPT);
+
+ return (0);
+}
+#endif /* !__riscv_float_abi_soft */
+
+#if __BSD_VISIBLE
+
+/* We currently provide no external definitions of the functions below. */
+
+#ifdef __riscv_float_abi_soft
+int feenableexcept(int __mask);
+int fedisableexcept(int __mask);
+int fegetexcept(void);
+#else
+static inline int
+feenableexcept(int __mask)
+{
+
+ /* No exception traps. */
+
+ return (-1);
+}
+
+static inline int
+fedisableexcept(int __mask)
+{
+
+ /* No exception traps. */
+
+ return (0);
+}
+
+static inline int
+fegetexcept(void)
+{
+
+ /* No exception traps. */
+
+ return (0);
+}
+#endif /* !__riscv_float_abi_soft */
+
+#endif /* __BSD_VISIBLE */
+
+__END_DECLS
+
+#endif /* !_FENV_H_ */
diff --git a/headers/posix/fenv.h b/headers/posix/fenv.h
index 02a48a2..6c8c37a 100644
--- a/headers/posix/fenv.h
+++ b/headers/posix/fenv.h
@@ -11,6 +11,8 @@
# include <arch/arm64/fenv.h>
#elif defined(__POWERPC__)
# include <arch/ppc/fenv.h>
+#elif defined(__riscv64__)
+# include <arch/riscv64/fenv.h>
#elif defined(__sparc__)
# include <arch/sparc64/fenv.h>
#else
diff --git a/src/system/libroot/posix/musl/math/riscv64/Jamfile
b/src/system/libroot/posix/musl/math/riscv64/Jamfile
new file mode 100644
index 0000000..b24a209
--- /dev/null
+++ b/src/system/libroot/posix/musl/math/riscv64/Jamfile
@@ -0,0 +1,100 @@
+SubDir HAIKU_TOP src system libroot posix musl math riscv64 ;
+
+SubDirCcFlags -Wno-unused-but-set-variable ;
+
+SubDirSysHdrs [ FDirName $(SUBDIR) .. .. include ] ;
+UseHeaders [ FDirName $(SUBDIR) .. .. internal ] ;
+
+local arch ;
+for arch in $(TARGET_ARCHS) {
+ UseHeaders [ FDirName $(SUBDIR) .. .. arch $(arch) ] ;
+}
+UseHeaders [ FDirName $(SUBDIR) .. .. arch generic ] ;
+
+local generics =
+ acos.c acosf.c acosl.c
+ acosh.c acoshf.c acoshl.c
+ asin.c asinf.c asinl.c
+ asinh.c asinhf.c asinhl.c
+ atan2.c atan2f.c atan2l.c
+ atan.c atanf.c atanl.c
+ atanh.c atanhf.c atanhl.c
+ cbrt.c cbrtf.c cbrtl.c
+ ceil.c ceilf.c ceill.c
+ copysign.c copysignf.c copysignl.c
+ cos.c cosf.c cosl.c __cosl.c __cos.c __cosdf.c
+ cosh.c coshf.c coshl.c
+ erf.c erff.c erfl.c
+ exp10.c exp10f.c exp10l.c
+ exp2.c exp2f.c exp2f_data.c exp2l.c
+ exp.c exp_data.c expf.c expl.c
+ expm1.c expm1f.c expm1l.c
+ __expo2.c __expo2f.c
+ fabsl.c
+ fdim.c fdimf.c fdiml.c
+ finite.c finitef.c
+ floor.c floorf.c floorl.c
+ fmal.c
+ fmax.c fmaxf.c fmaxl.c
+ fmin.c fminf.c fminl.c
+ fmod.c fmodf.c fmodl.c
+ frexp.c frexpf.c frexpl.c
+ hypot.c hypotf.c hypotl.c
+ ilogb.c ilogbf.c ilogbl.c
+ __invtrigl.c
+ j0.c j0f.c j1.c j1f.c jn.c jnf.c
+ ldexp.c ldexpf.c ldexpl.c
+ lgamma.c lgammaf.c lgammaf_r.c lgammal.c lgamma_r.c
+ llrint.c llrintf.c llrintl.c
+ llround.c llroundf.c llroundl.c
+ log10.c log10f.c log10l.c
+ log1p.c log1pf.c log1pl.c
+ log2.c log2_data.c log2f.c log2f_data.c log2l.c
+ logb.c logbf.c logbl.c
+ log.c log_data.c logf.c logf_data.c logl.c
+ lrint.c lrintf.c lrintl.c
+ lround.c lroundf.c lroundl.c
+ __math_divzero.c __math_divzerof.c __math_invalid.c __math_invalidf.c
+ __math_oflow.c __math_oflowf.c __math_uflow.c __math_uflowf.c
+ __math_xflow.c __math_xflowf.c
+ modf.c modff.c modfl.c
+ nan.c nanf.c nanl.c
+ nearbyint.c nearbyintf.c nearbyintl.c
+ nextafter.c nextafterf.c nextafterl.c
+ nexttoward.c nexttowardf.c nexttowardl.c
+ __polevll.c pow.c pow_data.c powf.c powf_data.c powl.c
+ remainder.c remainderf.c remainderl.c
+ __rem_pio2.c __rem_pio2f.c __rem_pio2_large.c __rem_pio2l.c
+ remquo.c remquof.c remquol.c
+ rint.c rintf.c rintl.c
+ round.c roundf.c roundl.c
+ scalb.c scalbf.c scalbln.c scalblnf.c scalblnl.c scalbn.c scalbnf.c
scalbnl.c
+ signgam.c
+ significand.c significandf.c
+ __sin.c sin.c __sinl.c sinl.c
+ sincos.c sincosf.c sincosl.c
+ __sindf.c sinf.c
+ sinh.c sinhf.c sinhl.c
+ sqrtl.c
+ __tan.c tan.c __tandf.c tanf.c __tanl.c tanl.c
+ tanh.c tanhf.c tanhl.c
+ tgamma.c tgammaf.c tgammal.c
+ trunc.c truncf.c truncl.c
+ ;
+
+local architectureObject ;
+for architectureObject in [ MultiArchSubDirSetup ] {
+ on $(architectureObject) {
+ local architecture = $(TARGET_PACKAGING_ARCH) ;
+
+ MergeObject <$(architecture)>posix_musl_math.o :
+ fabs.c fabsf.c
+ fma.c fmaf.c
+ sqrt.c sqrtf.c
+
+ $(generics)
+ ;
+
+ SEARCH on [ FGristFiles $(generics) ] = [ FDirName $(SUBDIR) ..
] ;
+ }
+}
--
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Gerrit-Project: haiku
Gerrit-Branch: master
Gerrit-Change-Id: Icae064fde42af3bbed5ea2eadfaa8c18c677e6a6
Gerrit-Change-Number: 2164
Gerrit-PatchSet: 1
Gerrit-Owner: Alex von Gluck IV <kallisti5@xxxxxxxxxxx>
Gerrit-MessageType: newchange