Update.cvs/libc-ud-970604

1997-06-04 20:57  Ulrich Drepper  <drepper@cygnus.com>

	* manual/string.texi: Add comments to discourage use of index and
	rindex.
	(strtok, strsep): Apply function on copy of the strings in example.
	(l64a): Add example.

	* posix/unistd.h: Correct value for _POSIX_VERSION.

	* sunrpc/Makefile (defines): Remove definition.

	* sysdeps/ieee754/nan.h: Correct typo.

1997-06-04 10:50  Fila Kolodny  <fila@ibi.com>

	* posix/unistd.h: Add definition of __fchdir corresponding to fchdir.

	* login/utmp_daemon.c: Correct location of utmpd.h.

1997-06-03 19:16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules: Rename $(common-objpfx)distinfo-$(subdir) to
	$(objpfx)distinfo.
	* rpm/Makefile (distinfo): Adapted.

1997-06-03 18:32  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* rpm/Makefile (install-slib): Collect shared libraries here
	instead of in install-lib, including libc.
	(instvars): Add slib.

1997-06-03 18:23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/Makefile (libutil-routines): Add updwtmp.

1997-06-03 16:16  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* monetary.h: New file, needed for localedata/tst-fmon.c.

1997-06-02 20:31  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* math/libm-test.c (cpow_test): Add epsilon for long double in
	test for 2^10.
	(identities): Add epsilon for float in second identity test.

	* sysdeps/m68k/huge_val.h: Change GCC's HUGE_VAL{,F,L} to use
	DI and SI mode integers instead of bytes.  Fix value of HUGE_VALL.

	* sysdeps/m68k/nan.h: New file.

	* sysdeps/m68k/fpu/__math.h (isgreater, isgreaterequal, isless,
	islessequal, islessgreater, isunordered): Fix assembler syntax.

	* sysdeps/m68k/fpu/fraiseexcpt.c: Do it right so that gcc doesn't
	optimize out the operations.

	* sysdeps/libm-ieee754/s_nan.c: Use NaN macro instead of static
	constant.
	* sysdeps/libm-ieee754/s_nanf.c: Likewise.
	* sysdeps/libm-ieee754/s_nanl.c: Likewise.

	* math/carg.c [NO_LONG_DOUBLE]: Add alias for long double
	function.
	* sysdeps/libm-ieee754/s_erf.c: Likewise.
	* sysdeps/libm-ieee754/s_fdim.c: Likewise.
	* sysdeps/libm-ieee754/s_fmax.c: Likewise.
	* sysdeps/libm-ieee754/s_fmin.c: Likewise.
	* sysdeps/libm-ieee754/s_log2.c: Likewise.
	* sysdeps/libm-ieee754/s_nan.c: Likewise.
	* sysdeps/libm-ieee754/s_remquo.c: Likewise.

4 files changed, 101 insertions, 43 deletions

diff --git a/sysdeps/m68k/fpu/__math.h b/sysdeps/m68k/fpu/__math.h
index 5dc4d2e066..fd90a2de1b 100644
--- a/sysdeps/m68k/fpu/__math.h
+++ b/sysdeps/m68k/fpu/__math.h
@@ -414,7 +414,7 @@ __inline_forward(void,sincosl,
 #define isgreater(x, y)					\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsogt %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsogt %0"		\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 
@@ -422,7 +422,7 @@ __inline_forward(void,sincosl,
 #define isgreaterequal(x, y)				\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsoge %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsoge %0"		\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 
@@ -430,7 +430,7 @@ __inline_forward(void,sincosl,
 #define isless(x, y)					\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsolt %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsolt %0"		\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 
@@ -438,7 +438,7 @@ __inline_forward(void,sincosl,
 #define islessequal(x, y)				\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsole %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsole %0"		\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 
@@ -446,7 +446,7 @@ __inline_forward(void,sincosl,
 #define islessgreater(x, y)				\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsogl %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsogl %0"		\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 
@@ -454,7 +454,7 @@ __inline_forward(void,sincosl,
 #define isunordered(x, y)				\
    __extension__					\
    ({ char __result;					\
-      __asm__ ("fcmp %2,%1; fsun %0"			\
+      __asm__ ("fcmp%.x %2,%1; fsun %0"			\
 	       : "=dm" (__result) : "f" (x), "f" (y));	\
       (int) __result; })
 #endif
diff --git a/sysdeps/m68k/fpu/fraiseexcpt.c b/sysdeps/m68k/fpu/fraiseexcpt.c
index b6ff82760d..51411dd292 100644
--- a/sysdeps/m68k/fpu/fraiseexcpt.c
+++ b/sysdeps/m68k/fpu/fraiseexcpt.c
@@ -34,9 +34,8 @@ feraiseexcept (int excepts)
   if (excepts & FE_INVALID)
     {
       /* One example of a invalid operation is 0 * Infinity.  */
-      double d = 0.0 * HUGE_VAL;
-      /* Now force the exception.  */
-      __asm__ __volatile__ ("fnop" : : "f" (d));
+      double d = HUGE_VAL;
+      __asm__ __volatile__ ("fmul%.s %#0r0,%0; fnop" : "=f" (d) : "0" (d));
     }
 
   /* Next: division by zero.  */
@@ -49,26 +48,21 @@ feraiseexcept (int excepts)
   /* Next: overflow.  */
   if (excepts & FE_OVERFLOW)
     {
-      long double d = LDBL_MAX * LDBL_MAX;
-      /* Now force the exception.  */
-      __asm__ __volatile__ ("fnop" : : "f" (d));
+      long double d = LDBL_MAX;
+      __asm__ __volatile__ ("fmul%.x %0,%0; fnop" : "=f" (d) : "0" (d));
     }
 
   /* Next: underflow.  */
   if (excepts & FE_UNDERFLOW)
     {
-      long double d = LDBL_MIN / 16.0;
-      /* Now force the exception.  */
-      __asm__ __volatile__ ("fnop" : : "f" (d));
+      long double d = LDBL_MIN;
+      __asm__ __volatile__ ("fdiv%.s %#0r16,%0; fnop" : "=f" (d) : "0" (d));
     }
 
   /* Last: inexact.  */
   if (excepts & FE_INEXACT)
     {
-      long double d1, d2 = 1.0;
-      __asm__ __volatile__ ("fmovecr %#0,%0\n\t"
-			    "fdiv%.x %1,%0\n\t"
-			    "fnop"
-			    : "=&f" (d1) : "f" (d2));
+      long double d = 1.0;
+      __asm__ __volatile__ ("fdiv%.s %#0r3,%0; fnop" : "=f" (d) : "0" (d));
     }
 }
diff --git a/sysdeps/m68k/huge_val.h b/sysdeps/m68k/huge_val.h
index 8d45aaec2b..c71454e9a8 100644
--- a/sysdeps/m68k/huge_val.h
+++ b/sysdeps/m68k/huge_val.h
@@ -26,15 +26,19 @@
 
 /* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
 
-#define	__HUGE_VAL_bytes	{ 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
-
-#define __huge_val_t	union { unsigned char __c[8]; double __d; }
 #ifdef	__GNUC__
-#define	HUGE_VAL	(__extension__ \
-			 ((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
-#else	/* Not GCC.  */
-static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
+
+#define HUGE_VAL					\
+  (__extension__					\
+   ((union { unsigned long long __l; double __d; })	\
+    { __l: 0x7ff0000000000000ULL }).__d)
+
+#else /* not GCC */
+
+static union { unsigned char __c[8]; double __d; } __huge_val =
+  { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } };
 #define	HUGE_VAL	(__huge_val.__d)
+
 #endif	/* GCC.  */
 
 
@@ -42,27 +46,28 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
 
 #ifdef __USE_ISOC9X
 
-#define	__HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
+#ifdef __GNUC__
 
-#define __huge_valf_t	union { unsigned char __c[4]; float __f; }
-#ifdef	__GNUC__
-#define	HUGE_VALF	(__extension__ \
-			 ((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
-#else	/* Not GCC.  */
-static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
-#define	HUGE_VALF	(__huge_valf.__f)
-#endif	/* GCC.  */
+#define HUGE_VALF					\
+  (__extension__					\
+   ((union { unsigned long __l; float __f; })		\
+    { __l: 0x7f800000UL }).__f)
 
+#define HUGE_VALL					\
+  (__extension__					\
+   ((union { unsigned long __l[3]; long double __ld; })	\
+    { __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
 
-#define	__HUGE_VALL_bytes	{ 0x7f, 0xff, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+#else /* not GCC */
 
-#define __huge_vall_t	union { unsigned char __c[12]; long double __ld; }
-#ifdef	__GNUC__
-#define	HUGE_VALL	(__extension__ \
-			 ((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld)
-#else	/* Not GCC.  */
-static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes };
+static union { unsigned char __c[4]; float __f; } __huge_valf =
+  { { 0x7f, 0x80, 0, 0 } };
+#define	HUGE_VALF	(__huge_valf.__f)
+
+static union { unsigned char __c[12]; long double __ld; } __huge_vall =
+  { { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } };
 #define	HUGE_VALL	(__huge_vall.__ld)
+
 #endif	/* GCC.  */
 
 #endif	/* __USE_ISOC9X.  */
diff --git a/sysdeps/m68k/nan.h b/sysdeps/m68k/nan.h
new file mode 100644
index 0000000000..b4efddfe91
--- /dev/null
+++ b/sysdeps/m68k/nan.h
@@ -0,0 +1,59 @@
+/* `NAN' constants for m68k.
+   Copyright (C) 1997 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef	_NAN_H
+
+#define	_NAN_H	1
+
+/* IEEE Not A Number.  */
+
+#ifdef	__GNUC__
+
+#define NAN							\
+  (__extension__						\
+   ((union { unsigned long long __l; double __d; })		\
+    { __l: 0x7fffffffffffffffULL }).__d)
+
+#define NANF							\
+  (__extension__						\
+   ((union { unsigned long __l; float __f; })			\
+    { __l: 0x7fffffffUL }).__f)
+
+#define NANL							\
+  (__extension__						\
+   ((union { unsigned long __l[3]; long double __ld; })		\
+    { __l: { 0x7fff0000UL, 0xffffffffUL, 0xffffffffUL } }).__ld)
+
+#else
+
+static union { unsigned char __c[8]; double __d; } __nan =
+  { { 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
+#define	NAN	(__nan.__d)
+
+static union { unsigned char __c[4]; float __f; } __nanf =
+  { { 0x7f, 0xff, 0xff, 0xff } };
+#define	NANF	(__nanf.__f)
+
+static union { unsigned char __c[12]; long double __ld; } __nanl =
+  { { 0x7f, 0xff, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
+#define	NANL	(__nanl.__ld)
+
+#endif	/* GCC.  */
+
+#endif	/* nan.h */