svn commit: r264721 - head/lib/libc/arm/gen

Andrew Turner andrew at FreeBSD.org
Mon Apr 21 09:43:24 UTC 2014 

Author: andrew
Date: Mon Apr 21 09:43:22 2014
New Revision: 264721
URL: http://svnweb.freebsd.org/changeset/base/264721

Log:
  Rename the fp{get,set}* files so they no longer conflict with the softfloat
  version of these files. Keep them within this directory so they can be used
  to implement the armv6 version of these functions.

Added:
  head/lib/libc/arm/gen/fpgetmask_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpgetmask.c
  head/lib/libc/arm/gen/fpgetround_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpgetround.c
  head/lib/libc/arm/gen/fpgetsticky_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpgetsticky.c
  head/lib/libc/arm/gen/fpsetmask_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpsetmask.c
  head/lib/libc/arm/gen/fpsetround_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpsetround.c
  head/lib/libc/arm/gen/fpsetsticky_vfp.c
     - copied unchanged from r264696, head/lib/libc/arm/gen/fpsetsticky.c
Deleted:
  head/lib/libc/arm/gen/fpgetmask.c
  head/lib/libc/arm/gen/fpgetround.c
  head/lib/libc/arm/gen/fpgetsticky.c
  head/lib/libc/arm/gen/fpsetmask.c
  head/lib/libc/arm/gen/fpsetround.c
  head/lib/libc/arm/gen/fpsetsticky.c
Modified:
  head/lib/libc/arm/gen/Makefile.inc

Modified: head/lib/libc/arm/gen/Makefile.inc
==============================================================================
--- head/lib/libc/arm/gen/Makefile.inc	Mon Apr 21 06:07:08 2014	(r264720)
+++ head/lib/libc/arm/gen/Makefile.inc	Mon Apr 21 09:43:22 2014	(r264721)
@@ -11,6 +11,6 @@ SRCS+=	divsi3.S
 .endif
 
 .if ${MACHINE_ARCH} == "armv6hf"
-SRCS+=	fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c fpsetround.c \
-	fpsetsticky.c
+SRCS+=	fpgetmask_vfp.c fpgetround_vfp.c fpgetsticky_vfp.c fpsetmask_vfp.c \
+	fpsetround_vfp.c fpsetsticky_vfp.c
 .endif

Copied: head/lib/libc/arm/gen/fpgetmask_vfp.c (from r264696, head/lib/libc/arm/gen/fpgetmask.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpgetmask_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpgetmask.c)
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetmask,_fpgetmask)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except_t
+fpgetmask(void)
+{
+	fp_except mask;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(mask));
+
+	return ((mask >> 8) & FP_X_MASK);
+}
+

Copied: head/lib/libc/arm/gen/fpgetround_vfp.c (from r264696, head/lib/libc/arm/gen/fpgetround.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpgetround_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpgetround.c)
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetround,_fpgetround)
+#endif
+
+fp_rnd_t
+fpgetround(void)
+{
+	uint32_t fpscr;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(fpscr));
+
+	return ((fpscr >> 22) & 3);
+}
+

Copied: head/lib/libc/arm/gen/fpgetsticky_vfp.c (from r264696, head/lib/libc/arm/gen/fpgetsticky.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpgetsticky_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpgetsticky.c)
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpgetsticky,_fpgetsticky)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpgetsticky(void)
+{
+	fp_except old;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+
+	return (old & FP_X_MASK);
+}
+

Copied: head/lib/libc/arm/gen/fpsetmask_vfp.c (from r264696, head/lib/libc/arm/gen/fpsetmask.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpsetmask_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpsetmask.c)
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetmask,_fpsetmask)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except_t
+fpsetmask(fp_except_t mask)
+{
+	fp_except old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	mask = (mask & FP_X_MASK) << 8;
+	new = (old & ~(FP_X_MASK << 8)) | mask;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(old));
+
+	return ((old >> 8) & FP_X_MASK);
+}
+

Copied: head/lib/libc/arm/gen/fpsetround_vfp.c (from r264696, head/lib/libc/arm/gen/fpsetround.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpsetround_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpsetround.c)
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetround,_fpsetround)
+#endif
+
+fp_rnd_t
+fpsetround(fp_rnd_t rnd_dir)
+{
+	uint32_t old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	new = old & ~(3 << 22);
+	new |= rnd_dir << 22;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(new));
+
+	return ((old >> 22) & 3);
+}
+

Copied: head/lib/libc/arm/gen/fpsetsticky_vfp.c (from r264696, head/lib/libc/arm/gen/fpsetsticky.c)
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/lib/libc/arm/gen/fpsetsticky_vfp.c	Mon Apr 21 09:43:22 2014	(r264721, copy of r264696, head/lib/libc/arm/gen/fpsetsticky.c)
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2014 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <ieeefp.h>
+
+#ifdef __weak_alias
+__weak_alias(fpsetsticky,_fpsetsticky)
+#endif
+
+#define FP_X_MASK	(FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP)
+
+fp_except
+fpsetsticky(fp_except except)
+{
+	fp_except old, new;
+
+	__asm __volatile("vmrs %0, fpscr" : "=&r"(old));
+	new = old & ~(FP_X_MASK);
+	new &= ~except;
+	__asm __volatile("vmsr fpscr, %0" : : "r"(new));
+
+	return (old & except);
+}
+

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