sparc64: add basic support

No NPTL, no LDSO support.
Bootup with Busybox Ash in Qemu working.
Testuite shows only two failures, but mksh continue/break
support doesn't work.

1 files changed, 197 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/sparc64/bits/mathinline.h b/libc/sysdeps/linux/sparc64/bits/mathinline.h
new file mode 100644
index 000000000..8bb35f6d8
--- /dev/null
+++ b/libc/sysdeps/linux/sparc64/bits/mathinline.h
@@ -0,0 +1,197 @@
+/* Inline math functions for SPARC.
+   Copyright (C) 1999, 2000, 2001, 2002, 2004, 2006
+   Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
+#endif
+
+#ifdef __GNUC__
+
+#if defined __USE_ISOC99 && !__GNUC_PREREQ (3, 0)
+# undef isgreater
+# undef isgreaterequal
+# undef isless
+# undef islessequal
+# undef islessgreater
+# undef isunordered
+
+# define __unordered_v9cmp(x, y, op, qop) \
+  (__extension__							      \
+   ({ unsigned __r;							      \
+      if (sizeof (x) == 4 && sizeof (y) == 4)				      \
+	{								      \
+	  float __x = (x); float __y = (y);				      \
+	  __asm__ ("fcmps\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0"	      \
+		   : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc");      \
+	}								      \
+      else if (sizeof (x) <= 8 && sizeof (y) <= 8)			      \
+	{								      \
+	  double __x = (x); double __y = (y);				      \
+	  __asm__ ("fcmpd\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0"	      \
+		   : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc");      \
+	}								      \
+      else								      \
+	{								      \
+	  long double __x = (x); long double __y = (y);			      \
+	  extern int _Qp_cmp (const long double *a, const long double *b);    \
+	  __r = qop;							      \
+	}								      \
+      __r; }))
+
+# define isgreater(x, y) __unordered_v9cmp(x, y, "g", _Qp_cmp (&__x, &__y) == 2)
+# define isgreaterequal(x, y) __unordered_v9cmp(x, y, "ge", (_Qp_cmp (&__x, &__y) & 1) == 0)
+# define isless(x, y) __unordered_v9cmp(x, y, "l", _Qp_cmp (&__x, &__y) == 1)
+# define islessequal(x, y) __unordered_v9cmp(x, y, "le", (_Qp_cmp (&__x, &__y) & 2) == 0)
+# define islessgreater(x, y) __unordered_v9cmp(x, y, "lg", ((_Qp_cmp (&__x, &__y) + 1) & 2) != 0)
+# define isunordered(x, y) __unordered_v9cmp(x, y, "u", _Qp_cmp (&__x, &__y) == 3)
+
+#endif /* __USE_ISOC99 */
+
+#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) && defined __OPTIMIZE__
+
+# ifdef __cplusplus
+#  define __MATH_INLINE __inline
+# else
+#  define __MATH_INLINE __extern_inline
+# endif  /* __cplusplus */
+
+/* The gcc, version 2.7 or below, has problems with all this inlining
+   code.  So disable it for this version of the compiler.  */
+# if __GNUC_PREREQ (2, 8)
+
+#  ifdef __USE_ISOC99
+
+/* Test for negative number.  Used in the signbit() macro.  */
+__MATH_INLINE int
+__NTH (__signbitf (float __x))
+{
+  __extension__ union { float __f; int __i; } __u = { __f: __x };
+  return __u.__i < 0;
+}
+
+__MATH_INLINE int
+__NTH (__signbit (double __x))
+{
+  __extension__ union { double __d; long int __i; } __u = { __d: __x };
+  return __u.__i < 0;
+}
+
+__MATH_INLINE int
+__NTH (__signbitl (long double __x))
+{
+  __extension__ union { long double __l; long int __i[2]; } __u = { __l: __x };
+  return __u.__i[0] < 0;
+}
+
+#  endif /* __USE_ISOC99 */
+
+#  if !defined __NO_MATH_INLINES && !__GNUC_PREREQ (3, 2)
+
+__MATH_INLINE double
+__NTH (sqrt (double __x))
+{
+  register double __r;
+  __asm__ ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE float
+__NTH (sqrtf (float __x))
+{
+  register float __r;
+  __asm__ ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE long double
+__NTH (sqrtl (long double __x))
+{
+  long double __r;
+  extern void _Qp_sqrt (long double *, __const__ long double *);
+  _Qp_sqrt (&__r, &__x);
+  return __r;
+}
+#   elif !defined __NO_LONG_DOUBLE_MATH
+__MATH_INLINE long double
+sqrtl (long double __x) __THROW
+{
+  extern long double _Q_sqrt (__const__ long double);
+  return _Q_sqrt (__x);
+}
+
+#  endif /* !__NO_MATH_INLINES && !GCC 3.2+ */
+
+/* This code is used internally in the GNU libc.  */
+#  ifdef __LIBC_INTERNAL_MATH_INLINES
+__MATH_INLINE double
+__ieee754_sqrt (double __x)
+{
+  register double __r;
+  __asm__ ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE float
+__ieee754_sqrtf (float __x)
+{
+  register float __r;
+  __asm__ ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
+  return __r;
+}
+
+__MATH_INLINE long double
+__ieee754_sqrtl (long double __x)
+{
+  long double __r;
+  extern void _Qp_sqrt (long double *, __const__ long double *);
+  _Qp_sqrt(&__r, &__x);
+  return __r;
+}
+#   elif !defined __NO_LONG_DOUBLE_MATH
+__MATH_INLINE long double
+__ieee754_sqrtl (long double __x)
+{
+  extern long double _Q_sqrt (__const__ long double);
+  return _Q_sqrt (__x);
+}
+#  endif /* __LIBC_INTERNAL_MATH_INLINES */
+# endif /* gcc 2.8+ */
+
+# ifdef __USE_ISOC99
+
+#  ifndef __NO_MATH_INLINES
+
+__MATH_INLINE double __NTH (fdim (double __x, double __y));
+__MATH_INLINE double
+__NTH (fdim (double __x, double __y))
+{
+  return __x <= __y ? 0 : __x - __y;
+}
+
+__MATH_INLINE float __NTH (fdimf (float __x, float __y));
+__MATH_INLINE float
+__NTH (fdimf (float __x, float __y))
+{
+  return __x <= __y ? 0 : __x - __y;
+}
+
+#  endif /* !__NO_MATH_INLINES */
+# endif /* __USE_ISOC99 */
+#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
+#endif /* __GNUC__ */