main/libc0.9.32: add utmpx and fesetround for x86_64

1 files changed, 98 insertions, 0 deletions

diff --git a/main/libc0.9.32/0001-libm-x86_64-implement-fesetround.patch b/main/libc0.9.32/0001-libm-x86_64-implement-fesetround.patch
new file mode 100644
index 000000000..84d6a2e08
--- /dev/null
+++ b/main/libc0.9.32/0001-libm-x86_64-implement-fesetround.patch
@@ -0,0 +1,98 @@
+From b58032ae6a34afc1887d9a6f3d05891d0d4fdbab 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] libm/x86_64: implement fesetround
+
+from glibc
+---
+ libm/x86_64/Makefile.arch |   24 +++++++++++++++++++++++
+ libm/x86_64/fesetround.c  |   46 +++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 70 insertions(+), 0 deletions(-)
+ create mode 100644 libm/x86_64/Makefile.arch
+ create mode 100644 libm/x86_64/fesetround.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/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;
++}
+-- 
+1.7.3.2
+