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authorNatanael Copa <ncopa@alpinelinux.org>2012-02-06 15:11:15 +0000
committerNatanael Copa <ncopa@alpinelinux.org>2012-02-07 07:22:42 +0000
commitd5f82899c4fb6072f992db6b1b19d9b6e26aeb95 (patch)
tree503f6c69ec0dfe32db9dafef2f9200661af6e822 /main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch
parent754c0c888f81d4fab2e7cde320816ff901bd451e (diff)
downloadaports-d5f82899c4fb6072f992db6b1b19d9b6e26aeb95.tar.bz2
aports-d5f82899c4fb6072f992db6b1b19d9b6e26aeb95.tar.xz
main/libc0.9.32: upgrade to 0.9.33
Diffstat (limited to 'main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch')
-rw-r--r--main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch288
1 files changed, 288 insertions, 0 deletions
diff --git a/main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch b/main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch
new file mode 100644
index 000000000..bcdbe2940
--- /dev/null
+++ b/main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch
@@ -0,0 +1,288 @@
+From fce995147f17b47ade2bebbf8d49553132a29227 Mon Sep 17 00:00:00 2001
+From: Natanael Copa <natanael.copa@gmail.com>
+Date: Sun, 28 Nov 2010 12:43:33 +0000
+Subject: [PATCH 4/8] libm/x86_64: implement some fenv functions
+
+from glibc
+
+Posted to uclibc:
+http://lists.busybox.net/pipermail/uclibc/2010-December/044523.html
+
+Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
+---
+ libm/x86_64/Makefile.arch | 24 ++++++++++++++++++++
+ libm/x86_64/fclrexcpt.c | 52 ++++++++++++++++++++++++++++++++++++++++++++
+ libm/x86_64/fegetexcept.c | 32 +++++++++++++++++++++++++++
+ libm/x86_64/fesetround.c | 46 ++++++++++++++++++++++++++++++++++++++
+ libm/x86_64/fgetexcptflg.c | 36 ++++++++++++++++++++++++++++++
+ libm/x86_64/ftestexcept.c | 33 +++++++++++++++++++++++++++
+ 6 files changed, 223 insertions(+), 0 deletions(-)
+ create mode 100644 libm/x86_64/Makefile.arch
+ create mode 100644 libm/x86_64/fclrexcpt.c
+ create mode 100644 libm/x86_64/fegetexcept.c
+ create mode 100644 libm/x86_64/fesetround.c
+ create mode 100644 libm/x86_64/fgetexcptflg.c
+ create mode 100644 libm/x86_64/ftestexcept.c
+
+diff --git a/libm/x86_64/Makefile.arch b/libm/x86_64/Makefile.arch
+new file mode 100644
+index 0000000..e1be961
+--- /dev/null
++++ b/libm/x86_64/Makefile.arch
+@@ -0,0 +1,24 @@
++# Makefile for uClibc
++#
++# Copyright (C) 2000-2008 Erik Andersen <andersen@uclibc.org>
++#
++# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
++#
++# The routines included in this math library are derived from
++# glibc's libm.
++#
++
++ifeq ($(UCLIBC_HAS_FENV),y)
++libm_ARCH_SRC:=$(wildcard $(libm_ARCH_DIR)/*.c)
++libm_ARCH_OBJ:=$(patsubst $(libm_ARCH_DIR)/%.c,$(libm_ARCH_OUT)/%.o,$(libm_ARCH_SRC))
++endif
++
++libm_ARCH_OBJS:=$(libm_ARCH_OBJ)
++
++ifeq ($(DOPIC),y)
++libm-a-y+=$(libm_ARCH_OBJS:.o=.os)
++else
++libm-a-y+=$(libm_ARCH_OBJS)
++endif
++libm-so-y+=$(libm_ARCH_OBJS:.o=.os)
++
+diff --git a/libm/x86_64/fclrexcpt.c b/libm/x86_64/fclrexcpt.c
+new file mode 100644
+index 0000000..4fc3bfb
+--- /dev/null
++++ b/libm/x86_64/fclrexcpt.c
+@@ -0,0 +1,52 @@
++/* Clear given exceptions in current floating-point environment.
++ Copyright (C) 2001 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 <fenv.h>
++
++int
++feclearexcept (int excepts)
++{
++ fenv_t temp;
++ unsigned int mxcsr;
++
++ /* Mask out unsupported bits/exceptions. */
++ excepts &= FE_ALL_EXCEPT;
++
++ /* Bah, we have to clear selected exceptions. Since there is no
++ `fldsw' instruction we have to do it the hard way. */
++ __asm__ ("fnstenv %0" : "=m" (*&temp));
++
++ /* Clear the relevant bits. */
++ temp.__status_word &= excepts ^ FE_ALL_EXCEPT;
++
++ /* Put the new data in effect. */
++ __asm__ ("fldenv %0" : : "m" (*&temp));
++
++ /* And the same procedure for SSE. */
++ __asm__ ("stmxcsr %0" : "=m" (*&mxcsr));
++
++ /* Clear the relevant bits. */
++ mxcsr &= ~excepts;
++
++ /* And put them into effect. */
++ __asm__ ("ldmxcsr %0" : : "m" (*&mxcsr));
++
++ /* Success. */
++ return 0;
++}
+diff --git a/libm/x86_64/fegetexcept.c b/libm/x86_64/fegetexcept.c
+new file mode 100644
+index 0000000..04df4b6
+--- /dev/null
++++ b/libm/x86_64/fegetexcept.c
+@@ -0,0 +1,32 @@
++/* Get enabled floating-point exceptions.
++ Copyright (C) 2001 Free Software Foundation, Inc.
++ This file is part of the GNU C Library.
++ Contributed by Andreas Jaeger <aj@suse.de>, 2001.
++
++ 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 <fenv.h>
++
++int
++fegetexcept (void)
++{
++ unsigned short int exc;
++
++ /* Get the current control word. */
++ __asm__ ("fstcw %0" : "=m" (*&exc));
++
++ return (~exc) & FE_ALL_EXCEPT;
++}
+diff --git a/libm/x86_64/fesetround.c b/libm/x86_64/fesetround.c
+new file mode 100644
+index 0000000..3d2ef4c
+--- /dev/null
++++ b/libm/x86_64/fesetround.c
+@@ -0,0 +1,46 @@
++/* Set current rounding direction.
++ Copyright (C) 2001, 2005 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 <fenv.h>
++
++int
++fesetround (int round)
++{
++ unsigned short int cw;
++ int mxcsr;
++
++ if ((round & ~0xc00) != 0)
++ /* ROUND is no valid rounding mode. */
++ return 1;
++
++ /* First set the x87 FPU. */
++ __asm__ ("fnstcw %0" : "=m" (*&cw));
++ cw &= ~0xc00;
++ cw |= round;
++ __asm__ ("fldcw %0" : : "m" (*&cw));
++
++ /* And now the MSCSR register for SSE, the precision is at different bit
++ positions in the different units, we need to shift it 3 bits. */
++ __asm__ ("stmxcsr %0" : "=m" (*&mxcsr));
++ mxcsr &= ~ 0x6000;
++ mxcsr |= round << 3;
++ __asm__ ("ldmxcsr %0" : : "m" (*&mxcsr));
++
++ return 0;
++}
+diff --git a/libm/x86_64/fgetexcptflg.c b/libm/x86_64/fgetexcptflg.c
+new file mode 100644
+index 0000000..f0681dc
+--- /dev/null
++++ b/libm/x86_64/fgetexcptflg.c
+@@ -0,0 +1,36 @@
++/* Store current representation for exceptions.
++ Copyright (C) 2001 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 <fenv.h>
++
++int
++fegetexceptflag (fexcept_t *flagp, int excepts)
++{
++ fexcept_t temp;
++ unsigned int mxscr;
++
++ /* Get the current exceptions for the x87 FPU and SSE unit. */
++ __asm__ ("fnstsw %0\n"
++ "stmxcsr %1" : "=m" (*&temp), "=m" (*&mxscr));
++
++ *flagp = (temp | mxscr) & FE_ALL_EXCEPT & excepts;
++
++ /* Success. */
++ return 0;
++}
+diff --git a/libm/x86_64/ftestexcept.c b/libm/x86_64/ftestexcept.c
+new file mode 100644
+index 0000000..091c251
+--- /dev/null
++++ b/libm/x86_64/ftestexcept.c
+@@ -0,0 +1,33 @@
++/* Test exception in current environment.
++ Copyright (C) 2001 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 <fenv.h>
++
++int
++fetestexcept (int excepts)
++{
++ int temp;
++ unsigned int mxscr;
++
++ /* Get current exceptions. */
++ __asm__ ("fnstsw %0\n"
++ "stmxcsr %1" : "=m" (*&temp), "=m" (*&mxscr));
++
++ return (temp | mxscr) & excepts & FE_ALL_EXCEPT;
++}
+--
+1.7.8.4
+