diff options
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.patch | 288 |
1 files changed, 0 insertions, 288 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 deleted file mode 100644 index bcdbe2940c..0000000000 --- a/main/libc0.9.32/0004-libm-x86_64-implement-some-fenv-functions.patch +++ /dev/null @@ -1,288 +0,0 @@ -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 - |