* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: Removed.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.S: New File.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.c: Removed.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt.S: New File.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf.S: New File.
+2007-10-26 Steven Munroe <sjmunroe@us.ibm.com>
+
+ * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.S: New File.
+ * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: Removed.
+ * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.S: New File.
+ * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf.c: Removed.
+ * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt.S: New File.
+ * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf.S: New File.
+
2008-04-09 Ulrich Drepper <drepper@redhat.com>
[BZ #4314]
-GNU C Library NEWS -- history of user-visible changes. 2007-12-12
-Copyright (C) 1992-2006, 2007 Free Software Foundation, Inc.
+GNU C Library NEWS -- history of user-visible changes. 2008-4-9
+Copyright (C) 1992-2007, 2008 Free Software Foundation, Inc.
See the end for copying conditions.
Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
* New locales: bo_CN, bo_IN.
* New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
+
+* Sorting rules for some Indian languages (Devanagari and Gujarati).
+ Implemented by Pravin Satpute.
+
+* IPV6 addresses in /etc/resolv.conf can now have a scope ID
+
+* nscd caches now all timeouts for DNS entries
+ Implemented by Ulrich Drepper.
+
+* nscd is more efficient and wakes up less often.
+ Implemented by Ulrich Drepper.
+
+* More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
+ vdprintf, and obstack_vprintf.
+ Implemented by Jakub Jelinek.
+
+* Faster memset for x86-64.
+ Implemented by Harsha Jagasia and H.J. Lu.
+
+* Faster memcpy on x86.
+ Implemented by Ulrich Drepper.
+
+* ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
+ Implemented by Ulrich Drepper.
\f
Version 2.7
--- /dev/null
+/* sqrt function. PowerPC32 version.
+ Copyright (C) 2007 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, write to the Free
+ Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* double [fp1] sqrt (double x [fp1])
+ Power4 (ISA V2.0) and above implement sqrt in hardware (not optional).
+ The fsqrt instruction generates the correct value for all inputs and
+ sets the appropriate floating point exceptions. Extented checking is
+ only needed to set errno (via __kernel_standard) if the input value
+ is negative.
+
+ The fsqrt will set FPCC and FU (Floating Point Unordered or NaN
+ to indicated that the input value was negative or NaN. Use Move to
+ Condition Register from FPSCR to copy the FPCC field to cr1. The
+ branch on summary overflow transfers control to w_sqrt to process
+ any error conditions. Otherwise we can return the result directly.
+
+ This part of the function is a leaf routine, so no need to stack a
+ frame or execute prologue/epilogue code. This means it is safe to
+ transfer directly to w_sqrt as long as the input value (f1) is
+ preserved. Putting the the sqrt result into f2 (double parameter 2)
+ allows passing both the input value and sqrt result into the extended
+ wrapper so there is no need to recompute.
+
+ This tactic avoids the overhead of stacking a frame for the normal
+ (non-error) case. Until gcc supports prologue shrink-wrapping
+ this is the best we can do. */
+
+ .section ".text"
+ .machine power4
+EALIGN (__sqrt, 5, 0)
+ fsqrt fp2,fp1
+ mcrfs cr1,4
+ bso- cr1,.Lw_sqrt
+ fmr fp1,fp2
+ blr
+ .align 4
+.Lw_sqrt:
+ mflr r0
+ stwu r1,-16(r1)
+ cfi_adjust_cfa_offset(16)
+ fmr fp12,fp2
+ stw r0,20(r1)
+ stw r30,8(r1)
+ cfi_offset(lr,20)
+ cfi_offset(r30,8)
+#ifdef SHARED
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,.LCF1
+.LCF1:
+ mflr r30
+ addis r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@ha
+ addi r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@l
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r30
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# endif
+#else
+ lis r9,_LIB_VERSION@ha
+ lwz r0,_LIB_VERSION@l(r9)
+#endif
+/* if (_LIB_VERSION == _IEEE_) return z; */
+ cmpwi cr7,r0,-1
+ beq- cr7,.L4
+/* if (x != x) return z; !isnan*/
+ fcmpu cr7,fp1,fp1
+ bne- cr7,.L4
+/* if (x < 0.0)
+ return __kernel_standard (x, x, 26) */
+ fmr fp2,fp1
+ fabs fp0,fp1
+ li r3,26
+ fcmpu cr7,fp1,fp0
+ bne- cr7,.L11
+.L4:
+ lwz r0,20(r1)
+ fmr fp1,fp12
+ lwz r30,8(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+.L11:
+ bl __kernel_standard@plt
+ fmr fp12,fp1
+ b .L4
+ END (__sqrt)
+
+weak_alias (__sqrt, sqrt)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__sqrt, sqrtl)
+strong_alias (__sqrt, __sqrtl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0)
+#endif
+
+++ /dev/null
-/* Double-precision floating point square root wrapper.
- Copyright (C) 2004, 2007 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include <math_ldbl_opt.h>
-#include "math.h"
-#include "math_private.h"
-#include <fenv_libc.h>
-
-#ifdef __STDC__
-double
-__sqrt (double x) /* wrapper sqrt */
-#else
-double
-__sqrt (x) /* wrapper sqrt */
- double x;
-#endif
-{
- double z;
-/* Power4 (ISA V2.0) and above implement sqrt in hardware. */
- __asm __volatile (
- " fsqrt %0,%1\n"
- : "=f" (z)
- : "f" (x));
-#ifdef _IEEE_LIBM
- return z;
-#else
- if (__builtin_expect (_LIB_VERSION == _IEEE_, 0))
- return z;
-
- if (__builtin_expect (x != x, 0))
- return z;
-
- if (__builtin_expect (x < 0.0, 0))
- return __kernel_standard (x, x, 26); /* sqrt(negative) */
- else
- return z;
-#endif
-}
-
-weak_alias (__sqrt, sqrt)
-#ifdef NO_LONG_DOUBLE
- strong_alias (__sqrt, __sqrtl) weak_alias (__sqrt, sqrtl)
-#endif
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
-compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0);
-#endif
--- /dev/null
+/* sqrtf function. PowerPC32 version.
+ Copyright (C) 2007 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, write to the Free
+ Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* float [fp1] sqrts (float x [fp1])
+ Power4 (ISA V2.0) and above implement sqrt in hardware (not optional).
+ The fsqrts instruction generates the correct value for all inputs and
+ sets the appropriate floating point exceptions. Extented checking is
+ only needed to set errno (via __kernel_standard) if the input value
+ is negative.
+
+ The fsqrts will set FPCC and FU (Floating Point Unordered or NaN
+ to indicated that the input value was negative or NaN. Use Move to
+ Condition Register from FPSCR to copy the FPCC field to cr1. The
+ branch on summary overflow transfers control to w_sqrt to process
+ any error conditions. Otherwise we can return the result directly.
+
+ This part of the function is a leaf routine, so no need to stack a
+ frame or execute prologue/epilogue code. This means it is safe to
+ transfer directly to w_sqrt as long as the input value (f1) is
+ preserved. Putting the the sqrt result into f2 (float parameter 2)
+ allows passing both the input value and sqrt result into the extended
+ wrapper so there is no need to recompute.
+
+ This tactic avoids the overhead of stacking a frame for the normal
+ (non-error) case. Until gcc supports prologue shrink-wrapping
+ this is the best we can do. */
+
+ .section ".text"
+ .machine power4
+EALIGN (__sqrtf, 5, 0)
+ fsqrts fp2,fp1
+ mcrfs cr1,4
+ bso- cr1,.Lw_sqrtf
+ fmr fp1,fp2
+ blr
+ .align 4
+.Lw_sqrtf:
+ mflr r0
+ stwu r1,-16(r1)
+ cfi_adjust_cfa_offset(16)
+ fmr fp12,fp2
+ stw r0,20(r1)
+ stw r30,8(r1)
+ cfi_offset(lr,20)
+ cfi_offset(r30,8)
+#ifdef SHARED
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,.LCF1
+.LCF1:
+ mflr r30
+ addis r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@ha
+ addi r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@l
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r30
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# endif
+#else
+ lis r9,_LIB_VERSION@ha
+ lwz r0,_LIB_VERSION@l(r9)
+#endif
+/* if (_LIB_VERSION == _IEEE_) return z; */
+ cmpwi cr7,r0,-1
+ beq- cr7,.L4
+/* if (x != x, 0) return z; !isnan */
+ fcmpu cr7,fp1,fp1
+ bne- cr7,.L4
+/* if (x < 0.0)
+ return __kernel_standard (x, x, 126) */
+ fmr fp2,fp1
+ fabs fp0,fp1
+ li r3,126
+ fcmpu cr7,1,0
+ bne- cr7,.L11
+.L4:
+ lwz r0,20(r1)
+ fmr fp1,fp12
+ lwz r30,8(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+.L11:
+ bl __kernel_standard@plt
+ fmr fp12,fp1
+ b .L4
+ END (__sqrtf)
+
+weak_alias (__sqrtf, sqrtf)
+
+++ /dev/null
-/* Single-precision floating point square root wrapper.
- Copyright (C) 2004, 2007 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#include "math.h"
-#include "math_private.h"
-#include <fenv_libc.h>
-
-#include <sysdep.h>
-#include <ldsodefs.h>
-
-#ifdef __STDC__
-float
-__sqrtf (float x) /* wrapper sqrtf */
-#else
-float
-__sqrtf (x) /* wrapper sqrtf */
- float x;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_sqrtf (x);
-#else
- float z;
-/* Power4 (ISA V2.0) and above implement sqrtf in hardware. */
- __asm __volatile (
- " fsqrts %0,%1\n"
- : "=f" (z)
- : "f" (x));
-
- if (__builtin_expect (_LIB_VERSION == _IEEE_, 0))
- return z;
-
- if (__builtin_expect (x != x, 0))
- return z;
-
- if (__builtin_expect (x < 0.0, 0))
- /* sqrtf(negative) */
- return (float) __kernel_standard ((double) x, (double) x, 126);
- else
- return z;
-#endif
-}
-
-weak_alias (__sqrtf, sqrtf)
--- /dev/null
+/* sqrt function. PowerPC32 version.
+ Copyright (C) 2007 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, write to the Free
+ Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* double [fp1] sqrt (double x [fp1])
+ Power4 (ISA V2.0) and above implement sqrt in hardware (not optional).
+ The fsqrt instruction generates the correct value for all inputs and
+ sets the appropriate floating point exceptions. Extented checking is
+ only needed to set errno (via __kernel_standard) if the input value
+ is negative.
+
+ So compare the input value against the absolute value of itself.
+ This will compare equal unless the value is negative (EDOM) or a NAN,
+ in which case we branch to the extend wrapper. If equal we can return
+ the result directly.
+
+ This part of the function looks like a leaf routine, so no need to
+ stack a frame or execute prologue/epilogue code. It is safe to
+ branch directly to w_sqrt as long as the input value (f1) is
+ preserved. Putting the the sqrt result into f2 (float parameter 2)
+ allows passing both the input value and sqrt result into the extended
+ wrapper so there is no need to recompute.
+
+ This tactic avoids the overhead of stacking a frame for the normal
+ (non-error) case. Until gcc supports prologue shrink-wrapping
+ this is the best we can do. */
+
+ .section ".text"
+ .machine power4
+EALIGN (__sqrt, 5, 0)
+ fabs fp0,fp1
+ fsqrt fp2,fp1
+ fcmpu cr1,fp0,fp1
+ bne- cr1,.Lw_sqrt
+ fmr fp1,fp2
+ blr
+ .align 4
+.Lw_sqrt:
+ mflr r0
+ stwu r1,-16(r1)
+ cfi_adjust_cfa_offset(16)
+ fmr fp12,fp2
+ stw r0,20(r1)
+ stw r30,8(r1)
+ cfi_offset(lr,20)
+ cfi_offset(r30,8)
+#ifdef SHARED
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,.LCF1
+.LCF1:
+ mflr r30
+ addis r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@ha
+ addi r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@l
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r30
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# endif
+#else
+ lis r9,_LIB_VERSION@ha
+ lwz r0,_LIB_VERSION@l(r9)
+#endif
+/* if (_LIB_VERSION == _IEEE_) return z; */
+ cmpwi cr7,r0,-1
+ beq- cr7,.L4
+/* if (x != x) return z; !isnan*/
+ fcmpu cr7,fp1,fp1
+ bne- cr7,.L4
+/* if (x < 0.0)
+ return __kernel_standard (x, x, 26) */
+ fmr fp2,fp1
+ li r3,26
+ bne- cr1,.L11
+.L4:
+ lwz r0,20(r1)
+ fmr fp1,fp12
+ lwz r30,8(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+.L11:
+ bl __kernel_standard@plt
+ fmr fp12,fp1
+ b .L4
+ END (__sqrt)
+
+weak_alias (__sqrt, sqrt)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__sqrt, sqrtl)
+strong_alias (__sqrt, __sqrtl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __sqrt, sqrtl, GLIBC_2_0)
+#endif
+
--- /dev/null
+/* sqrtf function. PowerPC32 version.
+ Copyright (C) 2007 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, write to the Free
+ Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
+ 02110-1301 USA. */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* float [fp1] sqrts (float x [fp1])
+ Power4 (ISA V2.0) and above implement sqrt in hardware (not optional).
+ The fsqrts instruction generates the correct value for all inputs and
+ sets the appropriate floating point exceptions. Extented checking is
+ only needed to set errno (via __kernel_standard) if the input value
+ is negative.
+
+ So compare the input value against the absolute value of itself.
+ This will compare equal unless the value is negative (EDOM) or a NAN,
+ in which case we branch to the extend wrapper. If equal we can return
+ the result directly.
+
+ This part of the function looks like a leaf routine, so no need to
+ stack a frame or execute prologue/epilogue code. It is safe to
+ branch directly to w_sqrt as long as the input value (f1) is
+ preserved. Putting the the sqrt result into f2 (float parameter 2)
+ allows passing both the input value and sqrt result into the extended
+ wrapper so there is no need to recompute.
+
+ This tactic avoids the overhead of stacking a frame for the normal
+ (non-error) case. Until gcc supports prologue shrink-wrapping
+ this is the best we can do. */
+
+ .section ".text"
+ .machine power4
+EALIGN (__sqrtf, 5, 0)
+ fabs fp0,fp1
+ fsqrts fp2,fp1
+ fcmpu cr1,fp0,fp1
+ bne- cr1,.Lw_sqrtf
+ fmr fp1,fp2
+ blr
+ .align 4
+.Lw_sqrtf:
+ mflr r0
+ stwu r1,-16(r1)
+ cfi_adjust_cfa_offset(16)
+ fmr fp12,fp2
+ stw r0,20(r1)
+ stw r30,8(r1)
+ cfi_offset(lr,20)
+ cfi_offset(r30,8)
+#ifdef SHARED
+# ifdef HAVE_ASM_PPC_REL16
+ bcl 20,31,.LCF1
+.LCF1:
+ mflr r30
+ addis r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@ha
+ addi r30,r30,_GLOBAL_OFFSET_TABLE_-.LCF1@l
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# else
+ bl _GLOBAL_OFFSET_TABLE_@local-4
+ mflr r30
+ lwz r9,_LIB_VERSION@got(30)
+ lwz r0,0(r9)
+# endif
+#else
+ lis r9,_LIB_VERSION@ha
+ lwz r0,_LIB_VERSION@l(r9)
+#endif
+/* if (_LIB_VERSION == _IEEE_) return z; */
+ cmpwi cr7,r0,-1
+ beq- cr7,.L4
+/* if (x != x, 0) return z; !isnan */
+ fcmpu cr7,fp1,fp1
+ bne- cr7,.L4
+/* if (x < 0.0)
+ return __kernel_standard (x, x, 126) */
+ fmr fp2,fp1
+ li r3,126
+ bne- cr1,.L11
+.L4:
+ lwz r0,20(r1)
+ fmr fp1,fp12
+ lwz r30,8(r1)
+ addi r1,r1,16
+ mtlr r0
+ blr
+.L11:
+ bl __kernel_standard@plt
+ fmr fp12,fp1
+ b .L4
+ END (__sqrtf)
+
+weak_alias (__sqrtf, sqrtf)
+
projects / thirdparty / glibc.git / commitdiff
