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-rw-r--r--newlib/libc/machine/aarch64/Makefile.am10
-rw-r--r--newlib/libc/machine/aarch64/Makefile.in83
-rwxr-xr-xnewlib/libc/machine/aarch64/configure20
-rw-r--r--newlib/libc/machine/aarch64/memchr-stub.c31
-rw-r--r--newlib/libc/machine/aarch64/memchr.S176
-rw-r--r--newlib/libc/machine/aarch64/strchr-stub.c31
-rw-r--r--newlib/libc/machine/aarch64/strchr.S164
-rw-r--r--newlib/libc/machine/aarch64/strchrnul-stub.c31
-rw-r--r--newlib/libc/machine/aarch64/strchrnul.S149
-rw-r--r--newlib/libc/machine/aarch64/strcpy-stub.c31
-rw-r--r--newlib/libc/machine/aarch64/strcpy.S296
-rw-r--r--newlib/libc/machine/aarch64/strrchr-stub.c31
-rw-r--r--newlib/libc/machine/aarch64/strrchr.S182
13 files changed, 18 insertions, 1217 deletions
diff --git a/newlib/libc/machine/aarch64/Makefile.am b/newlib/libc/machine/aarch64/Makefile.am
index 19175afdd..2a810e253 100644
--- a/newlib/libc/machine/aarch64/Makefile.am
+++ b/newlib/libc/machine/aarch64/Makefile.am
@@ -9,8 +9,6 @@ AM_CCASFLAGS = $(INCLUDES)
noinst_LIBRARIES = lib.a
lib_a_SOURCES =
-lib_a_SOURCES += memchr-stub.c
-lib_a_SOURCES += memchr.S
lib_a_SOURCES += memcmp-stub.c
lib_a_SOURCES += memcmp.S
lib_a_SOURCES += memcpy-stub.c
@@ -20,22 +18,14 @@ lib_a_SOURCES += memmove.S
lib_a_SOURCES += memset-stub.c
lib_a_SOURCES += memset.S
lib_a_SOURCES += setjmp.S
-lib_a_SOURCES += strchr-stub.c
-lib_a_SOURCES += strchr.S
-lib_a_SOURCES += strchrnul-stub.c
-lib_a_SOURCES += strchrnul.S
lib_a_SOURCES += strcmp-stub.c
lib_a_SOURCES += strcmp.S
-lib_a_SOURCES += strcpy-stub.c
-lib_a_SOURCES += strcpy.S
lib_a_SOURCES += strlen-stub.c
lib_a_SOURCES += strlen.S
lib_a_SOURCES += strncmp-stub.c
lib_a_SOURCES += strncmp.S
lib_a_SOURCES += strnlen-stub.c
lib_a_SOURCES += strnlen.S
-lib_a_SOURCES += strrchr-stub.c
-lib_a_SOURCES += strrchr.S
lib_a_CCASFLAGS=$(AM_CCASFLAGS)
lib_a_CFLAGS=$(AM_CFLAGS)
diff --git a/newlib/libc/machine/aarch64/Makefile.in b/newlib/libc/machine/aarch64/Makefile.in
index fa89c42a9..6e568858e 100644
--- a/newlib/libc/machine/aarch64/Makefile.in
+++ b/newlib/libc/machine/aarch64/Makefile.in
@@ -69,20 +69,15 @@ LIBRARIES = $(noinst_LIBRARIES)
ARFLAGS = cru
lib_a_AR = $(AR) $(ARFLAGS)
lib_a_LIBADD =
-am_lib_a_OBJECTS = lib_a-memchr-stub.$(OBJEXT) lib_a-memchr.$(OBJEXT) \
- lib_a-memcmp-stub.$(OBJEXT) lib_a-memcmp.$(OBJEXT) \
+am_lib_a_OBJECTS = lib_a-memcmp-stub.$(OBJEXT) lib_a-memcmp.$(OBJEXT) \
lib_a-memcpy-stub.$(OBJEXT) lib_a-memcpy.$(OBJEXT) \
lib_a-memmove-stub.$(OBJEXT) lib_a-memmove.$(OBJEXT) \
lib_a-memset-stub.$(OBJEXT) lib_a-memset.$(OBJEXT) \
- lib_a-setjmp.$(OBJEXT) lib_a-strchr-stub.$(OBJEXT) \
- lib_a-strchr.$(OBJEXT) lib_a-strchrnul-stub.$(OBJEXT) \
- lib_a-strchrnul.$(OBJEXT) lib_a-strcmp-stub.$(OBJEXT) \
- lib_a-strcmp.$(OBJEXT) lib_a-strcpy-stub.$(OBJEXT) \
- lib_a-strcpy.$(OBJEXT) lib_a-strlen-stub.$(OBJEXT) \
+ lib_a-setjmp.$(OBJEXT) lib_a-strcmp-stub.$(OBJEXT) \
+ lib_a-strcmp.$(OBJEXT) lib_a-strlen-stub.$(OBJEXT) \
lib_a-strlen.$(OBJEXT) lib_a-strncmp-stub.$(OBJEXT) \
lib_a-strncmp.$(OBJEXT) lib_a-strnlen-stub.$(OBJEXT) \
- lib_a-strnlen.$(OBJEXT) lib_a-strrchr-stub.$(OBJEXT) \
- lib_a-strrchr.$(OBJEXT)
+ lib_a-strnlen.$(OBJEXT)
lib_a_OBJECTS = $(am_lib_a_OBJECTS)
DEFAULT_INCLUDES = -I.@am__isrc@
depcomp =
@@ -208,12 +203,10 @@ AUTOMAKE_OPTIONS = cygnus
INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
AM_CCASFLAGS = $(INCLUDES)
noinst_LIBRARIES = lib.a
-lib_a_SOURCES = memchr-stub.c memchr.S memcmp-stub.c memcmp.S \
- memcpy-stub.c memcpy.S memmove-stub.c memmove.S memset-stub.c \
- memset.S setjmp.S strchr-stub.c strchr.S strchrnul-stub.c \
- strchrnul.S strcmp-stub.c strcmp.S strcpy-stub.c strcpy.S \
- strlen-stub.c strlen.S strncmp-stub.c strncmp.S strnlen-stub.c \
- strnlen.S strrchr-stub.c strrchr.S
+lib_a_SOURCES = memcmp-stub.c memcmp.S memcpy-stub.c memcpy.S \
+ memmove-stub.c memmove.S memset-stub.c memset.S setjmp.S \
+ strcmp-stub.c strcmp.S strlen-stub.c strlen.S strncmp-stub.c \
+ strncmp.S strnlen-stub.c strnlen.S
lib_a_CCASFLAGS = $(AM_CCASFLAGS)
lib_a_CFLAGS = $(AM_CFLAGS)
ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
@@ -276,12 +269,6 @@ distclean-compile:
.S.obj:
$(CPPASCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
-lib_a-memchr.o: memchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memchr.o `test -f 'memchr.S' || echo '$(srcdir)/'`memchr.S
-
-lib_a-memchr.obj: memchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memchr.obj `if test -f 'memchr.S'; then $(CYGPATH_W) 'memchr.S'; else $(CYGPATH_W) '$(srcdir)/memchr.S'; fi`
-
lib_a-memcmp.o: memcmp.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memcmp.o `test -f 'memcmp.S' || echo '$(srcdir)/'`memcmp.S
@@ -312,30 +299,12 @@ lib_a-setjmp.o: setjmp.S
lib_a-setjmp.obj: setjmp.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-setjmp.obj `if test -f 'setjmp.S'; then $(CYGPATH_W) 'setjmp.S'; else $(CYGPATH_W) '$(srcdir)/setjmp.S'; fi`
-lib_a-strchr.o: strchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strchr.o `test -f 'strchr.S' || echo '$(srcdir)/'`strchr.S
-
-lib_a-strchr.obj: strchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strchr.obj `if test -f 'strchr.S'; then $(CYGPATH_W) 'strchr.S'; else $(CYGPATH_W) '$(srcdir)/strchr.S'; fi`
-
-lib_a-strchrnul.o: strchrnul.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strchrnul.o `test -f 'strchrnul.S' || echo '$(srcdir)/'`strchrnul.S
-
-lib_a-strchrnul.obj: strchrnul.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strchrnul.obj `if test -f 'strchrnul.S'; then $(CYGPATH_W) 'strchrnul.S'; else $(CYGPATH_W) '$(srcdir)/strchrnul.S'; fi`
-
lib_a-strcmp.o: strcmp.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strcmp.o `test -f 'strcmp.S' || echo '$(srcdir)/'`strcmp.S
lib_a-strcmp.obj: strcmp.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strcmp.obj `if test -f 'strcmp.S'; then $(CYGPATH_W) 'strcmp.S'; else $(CYGPATH_W) '$(srcdir)/strcmp.S'; fi`
-lib_a-strcpy.o: strcpy.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strcpy.o `test -f 'strcpy.S' || echo '$(srcdir)/'`strcpy.S
-
-lib_a-strcpy.obj: strcpy.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strcpy.obj `if test -f 'strcpy.S'; then $(CYGPATH_W) 'strcpy.S'; else $(CYGPATH_W) '$(srcdir)/strcpy.S'; fi`
-
lib_a-strlen.o: strlen.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strlen.o `test -f 'strlen.S' || echo '$(srcdir)/'`strlen.S
@@ -354,24 +323,12 @@ lib_a-strnlen.o: strnlen.S
lib_a-strnlen.obj: strnlen.S
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strnlen.obj `if test -f 'strnlen.S'; then $(CYGPATH_W) 'strnlen.S'; else $(CYGPATH_W) '$(srcdir)/strnlen.S'; fi`
-lib_a-strrchr.o: strrchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strrchr.o `test -f 'strrchr.S' || echo '$(srcdir)/'`strrchr.S
-
-lib_a-strrchr.obj: strrchr.S
- $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-strrchr.obj `if test -f 'strrchr.S'; then $(CYGPATH_W) 'strrchr.S'; else $(CYGPATH_W) '$(srcdir)/strrchr.S'; fi`
-
.c.o:
$(COMPILE) -c $<
.c.obj:
$(COMPILE) -c `$(CYGPATH_W) '$<'`
-lib_a-memchr-stub.o: memchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memchr-stub.o `test -f 'memchr-stub.c' || echo '$(srcdir)/'`memchr-stub.c
-
-lib_a-memchr-stub.obj: memchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memchr-stub.obj `if test -f 'memchr-stub.c'; then $(CYGPATH_W) 'memchr-stub.c'; else $(CYGPATH_W) '$(srcdir)/memchr-stub.c'; fi`
-
lib_a-memcmp-stub.o: memcmp-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memcmp-stub.o `test -f 'memcmp-stub.c' || echo '$(srcdir)/'`memcmp-stub.c
@@ -396,30 +353,12 @@ lib_a-memset-stub.o: memset-stub.c
lib_a-memset-stub.obj: memset-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memset-stub.obj `if test -f 'memset-stub.c'; then $(CYGPATH_W) 'memset-stub.c'; else $(CYGPATH_W) '$(srcdir)/memset-stub.c'; fi`
-lib_a-strchr-stub.o: strchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strchr-stub.o `test -f 'strchr-stub.c' || echo '$(srcdir)/'`strchr-stub.c
-
-lib_a-strchr-stub.obj: strchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strchr-stub.obj `if test -f 'strchr-stub.c'; then $(CYGPATH_W) 'strchr-stub.c'; else $(CYGPATH_W) '$(srcdir)/strchr-stub.c'; fi`
-
-lib_a-strchrnul-stub.o: strchrnul-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strchrnul-stub.o `test -f 'strchrnul-stub.c' || echo '$(srcdir)/'`strchrnul-stub.c
-
-lib_a-strchrnul-stub.obj: strchrnul-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strchrnul-stub.obj `if test -f 'strchrnul-stub.c'; then $(CYGPATH_W) 'strchrnul-stub.c'; else $(CYGPATH_W) '$(srcdir)/strchrnul-stub.c'; fi`
-
lib_a-strcmp-stub.o: strcmp-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcmp-stub.o `test -f 'strcmp-stub.c' || echo '$(srcdir)/'`strcmp-stub.c
lib_a-strcmp-stub.obj: strcmp-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcmp-stub.obj `if test -f 'strcmp-stub.c'; then $(CYGPATH_W) 'strcmp-stub.c'; else $(CYGPATH_W) '$(srcdir)/strcmp-stub.c'; fi`
-lib_a-strcpy-stub.o: strcpy-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcpy-stub.o `test -f 'strcpy-stub.c' || echo '$(srcdir)/'`strcpy-stub.c
-
-lib_a-strcpy-stub.obj: strcpy-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcpy-stub.obj `if test -f 'strcpy-stub.c'; then $(CYGPATH_W) 'strcpy-stub.c'; else $(CYGPATH_W) '$(srcdir)/strcpy-stub.c'; fi`
-
lib_a-strlen-stub.o: strlen-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strlen-stub.o `test -f 'strlen-stub.c' || echo '$(srcdir)/'`strlen-stub.c
@@ -438,12 +377,6 @@ lib_a-strnlen-stub.o: strnlen-stub.c
lib_a-strnlen-stub.obj: strnlen-stub.c
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strnlen-stub.obj `if test -f 'strnlen-stub.c'; then $(CYGPATH_W) 'strnlen-stub.c'; else $(CYGPATH_W) '$(srcdir)/strnlen-stub.c'; fi`
-lib_a-strrchr-stub.o: strrchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strrchr-stub.o `test -f 'strrchr-stub.c' || echo '$(srcdir)/'`strrchr-stub.c
-
-lib_a-strrchr-stub.obj: strrchr-stub.c
- $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strrchr-stub.obj `if test -f 'strrchr-stub.c'; then $(CYGPATH_W) 'strrchr-stub.c'; else $(CYGPATH_W) '$(srcdir)/strrchr-stub.c'; fi`
-
ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
unique=`for i in $$list; do \
diff --git a/newlib/libc/machine/aarch64/configure b/newlib/libc/machine/aarch64/configure
index d3ecfc644..ba0df833e 100755
--- a/newlib/libc/machine/aarch64/configure
+++ b/newlib/libc/machine/aarch64/configure
@@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for newlib 2.2.0.
+# Generated by GNU Autoconf 2.68 for newlib 2.1.0.
#
#
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -556,8 +556,8 @@ MAKEFLAGS=
# Identity of this package.
PACKAGE_NAME='newlib'
PACKAGE_TARNAME='newlib'
-PACKAGE_VERSION='2.2.0'
-PACKAGE_STRING='newlib 2.2.0'
+PACKAGE_VERSION='2.1.0'
+PACKAGE_STRING='newlib 2.1.0'
PACKAGE_BUGREPORT=''
PACKAGE_URL=''
@@ -1239,7 +1239,7 @@ if test "$ac_init_help" = "long"; then
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
-\`configure' configures newlib 2.2.0 to adapt to many kinds of systems.
+\`configure' configures newlib 2.1.0 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -1309,7 +1309,7 @@ fi
if test -n "$ac_init_help"; then
case $ac_init_help in
- short | recursive ) echo "Configuration of newlib 2.2.0:";;
+ short | recursive ) echo "Configuration of newlib 2.1.0:";;
esac
cat <<\_ACEOF
@@ -1400,7 +1400,7 @@ fi
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
-newlib configure 2.2.0
+newlib configure 2.1.0
generated by GNU Autoconf 2.68
Copyright (C) 2010 Free Software Foundation, Inc.
@@ -1455,7 +1455,7 @@ cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
-It was created by newlib $as_me 2.2.0, which was
+It was created by newlib $as_me 2.1.0, which was
generated by GNU Autoconf 2.68. Invocation command line was
$ $0 $@
@@ -2527,7 +2527,7 @@ fi
# Define the identity of the package.
PACKAGE='newlib'
- VERSION='2.2.0'
+ VERSION='2.1.0'
# Some tools Automake needs.
@@ -4007,7 +4007,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
-This file was extended by newlib $as_me 2.2.0, which was
+This file was extended by newlib $as_me 2.1.0, which was
generated by GNU Autoconf 2.68. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@@ -4064,7 +4064,7 @@ _ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
-newlib config.status 2.2.0
+newlib config.status 2.1.0
configured by $0, generated by GNU Autoconf 2.68,
with options \\"\$ac_cs_config\\"
diff --git a/newlib/libc/machine/aarch64/memchr-stub.c b/newlib/libc/machine/aarch64/memchr-stub.c
deleted file mode 100644
index dc550aa9d..000000000
--- a/newlib/libc/machine/aarch64/memchr-stub.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2013, Linaro Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the Linaro nor the
- names of its contributors may be used to endorse or promote products
- derived from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-# include "../../string/memchr.c"
-#else
-/* See memchr.S */
-#endif
diff --git a/newlib/libc/machine/aarch64/memchr.S b/newlib/libc/machine/aarch64/memchr.S
deleted file mode 100644
index 53f5d6bc0..000000000
--- a/newlib/libc/machine/aarch64/memchr.S
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * memchr - find a character in a memory zone
- *
- * Copyright (c) 2014, ARM Limited
- * All rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of the company nor the names of its contributors
- * may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- * HOLDER 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.
- */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-/* See memchr-stub.c */
-#else
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Neon Available.
- */
-
-/* Arguments and results. */
-#define srcin x0
-#define chrin w1
-#define cntin x2
-
-#define result x0
-
-#define src x3
-#define tmp x4
-#define wtmp2 w5
-#define synd x6
-#define soff x9
-#define cntrem x10
-
-#define vrepchr v0
-#define vdata1 v1
-#define vdata2 v2
-#define vhas_chr1 v3
-#define vhas_chr2 v4
-#define vrepmask v5
-#define vend v6
-
-/*
- * Core algorithm:
- *
- * For each 32-byte chunk we calculate a 64-bit syndrome value, with two bits
- * per byte. For each tuple, bit 0 is set if the relevant byte matched the
- * requested character and bit 1 is not used (faster than using a 32bit
- * syndrome). Since the bits in the syndrome reflect exactly the order in which
- * things occur in the original string, counting trailing zeros allows to
- * identify exactly which byte has matched.
- */
-
- .macro def_fn f p2align=0
- .text
- .p2align \p2align
- .global \f
- .type \f, %function
-\f:
- .endm
-
-def_fn memchr
- /* Do not dereference srcin if no bytes to compare. */
- cbz cntin, .Lzero_length
- /*
- * Magic constant 0x40100401 allows us to identify which lane matches
- * the requested byte.
- */
- mov wtmp2, #0x0401
- movk wtmp2, #0x4010, lsl #16
- dup vrepchr.16b, chrin
- /* Work with aligned 32-byte chunks */
- bic src, srcin, #31
- dup vrepmask.4s, wtmp2
- ands soff, srcin, #31
- and cntrem, cntin, #31
- b.eq .Lloop
-
- /*
- * Input string is not 32-byte aligned. We calculate the syndrome
- * value for the aligned 32 bytes block containing the first bytes
- * and mask the irrelevant part.
- */
-
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- sub tmp, soff, #32
- adds cntin, cntin, tmp
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask.16b
- addp vend.16b, vhas_chr1.16b, vhas_chr2.16b /* 256->128 */
- addp vend.16b, vend.16b, vend.16b /* 128->64 */
- mov synd, vend.2d[0]
- /* Clear the soff*2 lower bits */
- lsl tmp, soff, #1
- lsr synd, synd, tmp
- lsl synd, synd, tmp
- /* The first block can also be the last */
- b.ls .Lmasklast
- /* Have we found something already? */
- cbnz synd, .Ltail
-
-.Lloop:
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- subs cntin, cntin, #32
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- /* If we're out of data we finish regardless of the result */
- b.ls .Lend
- /* Use a fast check for the termination condition */
- orr vend.16b, vhas_chr1.16b, vhas_chr2.16b
- addp vend.2d, vend.2d, vend.2d
- mov synd, vend.2d[0]
- /* We're not out of data, loop if we haven't found the character */
- cbz synd, .Lloop
-
-.Lend:
- /* Termination condition found, let's calculate the syndrome value */
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask.16b
- addp vend.16b, vhas_chr1.16b, vhas_chr2.16b /* 256->128 */
- addp vend.16b, vend.16b, vend.16b /* 128->64 */
- mov synd, vend.2d[0]
- /* Only do the clear for the last possible block */
- b.hi .Ltail
-
-.Lmasklast:
- /* Clear the (32 - ((cntrem + soff) % 32)) * 2 upper bits */
- add tmp, cntrem, soff
- and tmp, tmp, #31
- sub tmp, tmp, #32
- neg tmp, tmp, lsl #1
- lsl synd, synd, tmp
- lsr synd, synd, tmp
-
-.Ltail:
- /* Count the trailing zeros using bit reversing */
- rbit synd, synd
- /* Compensate the last post-increment */
- sub src, src, #32
- /* Check that we have found a character */
- cmp synd, #0
- /* And count the leading zeros */
- clz synd, synd
- /* Compute the potential result */
- add result, src, synd, lsr #1
- /* Select result or NULL */
- csel result, xzr, result, eq
- ret
-
-.Lzero_length:
- mov result, #0
- ret
-
- .size memchr, . - memchr
-#endif
diff --git a/newlib/libc/machine/aarch64/strchr-stub.c b/newlib/libc/machine/aarch64/strchr-stub.c
deleted file mode 100644
index 3f9ec2d20..000000000
--- a/newlib/libc/machine/aarch64/strchr-stub.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2014, ARM Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-# include "../../string/strchr.c"
-#else
-/* See strchr.S */
-#endif
diff --git a/newlib/libc/machine/aarch64/strchr.S b/newlib/libc/machine/aarch64/strchr.S
deleted file mode 100644
index 2448dbc7d..000000000
--- a/newlib/libc/machine/aarch64/strchr.S
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- strchr - find a character in a string
-
- Copyright (c) 2014, ARM Limited
- All rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-/* See strchr-stub.c */
-#else
-
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Neon Available.
- */
-
-/* Arguments and results. */
-#define srcin x0
-#define chrin w1
-
-#define result x0
-
-#define src x2
-#define tmp1 x3
-#define wtmp2 w4
-#define tmp3 x5
-
-#define vrepchr v0
-#define vdata1 v1
-#define vdata2 v2
-#define vhas_nul1 v3
-#define vhas_nul2 v4
-#define vhas_chr1 v5
-#define vhas_chr2 v6
-#define vrepmask_0 v7
-#define vrepmask_c v16
-#define vend1 v17
-#define vend2 v18
-
-/* Core algorithm.
-
- For each 32-byte hunk we calculate a 64-bit syndrome value, with
- two bits per byte (LSB is always in bits 0 and 1, for both big
- and little-endian systems). For each tuple, bit 0 is set iff
- the relevant byte matched the requested character; bit 1 is set
- iff the relevant byte matched the NUL end of string (we trigger
- off bit0 for the special case of looking for NUL). Since the bits
- in the syndrome reflect exactly the order in which things occur
- in the original string a count_trailing_zeros() operation will
- identify exactly which byte is causing the termination, and why. */
-
-/* Locals and temporaries. */
-
- .macro def_fn f p2align=0
- .text
- .p2align \p2align
- .global \f
- .type \f, %function
-\f:
- .endm
-
-def_fn strchr
- /* Magic constant 0x40100401 to allow us to identify which lane
- matches the requested byte. Magic constant 0x80200802 used
- similarly for NUL termination. */
- mov wtmp2, #0x0401
- movk wtmp2, #0x4010, lsl #16
- dup vrepchr.16b, chrin
- bic src, srcin, #31 /* Work with aligned 32-byte hunks. */
- dup vrepmask_c.4s, wtmp2
- ands tmp1, srcin, #31
- add vrepmask_0.4s, vrepmask_c.4s, vrepmask_c.4s /* equiv: lsl #1 */
- b.eq .Lloop
-
- /* Input string is not 32-byte aligned. Rather than forcing
- the padding bytes to a safe value, we calculate the syndrome
- for all the bytes, but then mask off those bits of the
- syndrome that are related to the padding. */
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- neg tmp1, tmp1
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- and vhas_nul1.16b, vhas_nul1.16b, vrepmask_0.16b
- and vhas_nul2.16b, vhas_nul2.16b, vrepmask_0.16b
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask_c.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask_c.16b
- orr vend1.16b, vhas_nul1.16b, vhas_chr1.16b
- orr vend2.16b, vhas_nul2.16b, vhas_chr2.16b
- lsl tmp1, tmp1, #1
- addp vend1.16b, vend1.16b, vend2.16b // 256->128
- mov tmp3, #~0
- addp vend1.16b, vend1.16b, vend2.16b // 128->64
- lsr tmp1, tmp3, tmp1
-
- mov tmp3, vend1.2d[0]
- bic tmp1, tmp3, tmp1 // Mask padding bits.
- cbnz tmp1, .Ltail
-
-.Lloop:
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- /* Use a fast check for the termination condition. */
- orr vend1.16b, vhas_nul1.16b, vhas_chr1.16b
- orr vend2.16b, vhas_nul2.16b, vhas_chr2.16b
- orr vend1.16b, vend1.16b, vend2.16b
- addp vend1.2d, vend1.2d, vend1.2d
- mov tmp1, vend1.2d[0]
- cbz tmp1, .Lloop
-
- /* Termination condition found. Now need to establish exactly why
- we terminated. */
- and vhas_nul1.16b, vhas_nul1.16b, vrepmask_0.16b
- and vhas_nul2.16b, vhas_nul2.16b, vrepmask_0.16b
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask_c.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask_c.16b
- orr vend1.16b, vhas_nul1.16b, vhas_chr1.16b
- orr vend2.16b, vhas_nul2.16b, vhas_chr2.16b
- addp vend1.16b, vend1.16b, vend2.16b // 256->128
- addp vend1.16b, vend1.16b, vend2.16b // 128->64
-
- mov tmp1, vend1.2d[0]
-.Ltail:
- /* Count the trailing zeros, by bit reversing... */
- rbit tmp1, tmp1
- /* Re-bias source. */
- sub src, src, #32
- clz tmp1, tmp1 /* And counting the leading zeros. */
- /* Tmp1 is even if the target charager was found first. Otherwise
- we've found the end of string and we weren't looking for NUL. */
- tst tmp1, #1
- add result, src, tmp1, lsr #1
- csel result, result, xzr, eq
- ret
-
- .size strchr, . - strchr
-#endif
diff --git a/newlib/libc/machine/aarch64/strchrnul-stub.c b/newlib/libc/machine/aarch64/strchrnul-stub.c
deleted file mode 100644
index b47e92d3f..000000000
--- a/newlib/libc/machine/aarch64/strchrnul-stub.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2014, ARM Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-# include "../../string/strchrnul.c"
-#else
-/* See strchrnul.S */
-#endif
diff --git a/newlib/libc/machine/aarch64/strchrnul.S b/newlib/libc/machine/aarch64/strchrnul.S
deleted file mode 100644
index a0ac13b7f..000000000
--- a/newlib/libc/machine/aarch64/strchrnul.S
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- strchrnul - find a character or nul in a string
-
- Copyright (c) 2014, ARM Limited
- All rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-/* See strchrnul-stub.c */
-#else
-
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Neon Available.
- */
-
-/* Arguments and results. */
-#define srcin x0
-#define chrin w1
-
-#define result x0
-
-#define src x2
-#define tmp1 x3
-#define wtmp2 w4
-#define tmp3 x5
-
-#define vrepchr v0
-#define vdata1 v1
-#define vdata2 v2
-#define vhas_nul1 v3
-#define vhas_nul2 v4
-#define vhas_chr1 v5
-#define vhas_chr2 v6
-#define vrepmask v7
-#define vend1 v16
-
-/* Core algorithm.
-
- For each 32-byte hunk we calculate a 64-bit syndrome value, with
- two bits per byte (LSB is always in bits 0 and 1, for both big
- and little-endian systems). For each tuple, bit 0 is set iff
- the relevant byte matched the requested character or nul. Since the
- bits in the syndrome reflect exactly the order in which things occur
- in the original string a count_trailing_zeros() operation will
- identify exactly which byte is causing the termination. */
-
-/* Locals and temporaries. */
-
- .macro def_fn f p2align=0
- .text
- .p2align \p2align
- .global \f
- .type \f, %function
-\f:
- .endm
-
-def_fn strchrnul
- /* Magic constant 0x40100401 to allow us to identify which lane
- matches the termination condition. */
- mov wtmp2, #0x0401
- movk wtmp2, #0x4010, lsl #16
- dup vrepchr.16b, chrin
- bic src, srcin, #31 /* Work with aligned 32-byte hunks. */
- dup vrepmask.4s, wtmp2
- ands tmp1, srcin, #31
- b.eq .Lloop
-
- /* Input string is not 32-byte aligned. Rather than forcing
- the padding bytes to a safe value, we calculate the syndrome
- for all the bytes, but then mask off those bits of the
- syndrome that are related to the padding. */
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- neg tmp1, tmp1
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- orr vhas_chr1.16b, vhas_chr1.16b, vhas_nul1.16b
- orr vhas_chr2.16b, vhas_chr2.16b, vhas_nul2.16b
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask.16b
- lsl tmp1, tmp1, #1
- addp vend1.16b, vhas_chr1.16b, vhas_chr2.16b // 256->128
- mov tmp3, #~0
- addp vend1.16b, vend1.16b, vend1.16b // 128->64
- lsr tmp1, tmp3, tmp1
-
- mov tmp3, vend1.2d[0]
- bic tmp1, tmp3, tmp1 // Mask padding bits.
- cbnz tmp1, .Ltail
-
-.Lloop:
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- /* Use a fast check for the termination condition. */
- orr vhas_chr1.16b, vhas_nul1.16b, vhas_chr1.16b
- orr vhas_chr2.16b, vhas_nul2.16b, vhas_chr2.16b
- orr vend1.16b, vhas_chr1.16b, vhas_chr2.16b
- addp vend1.2d, vend1.2d, vend1.2d
- mov tmp1, vend1.2d[0]
- cbz tmp1, .Lloop
-
- /* Termination condition found. Now need to establish exactly why
- we terminated. */
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask.16b
- addp vend1.16b, vhas_chr1.16b, vhas_chr2.16b // 256->128
- addp vend1.16b, vend1.16b, vend1.16b // 128->64
-
- mov tmp1, vend1.2d[0]
-.Ltail:
- /* Count the trailing zeros, by bit reversing... */
- rbit tmp1, tmp1
- /* Re-bias source. */
- sub src, src, #32
- clz tmp1, tmp1 /* ... and counting the leading zeros. */
- /* tmp1 is twice the offset into the fragment. */
- add result, src, tmp1, lsr #1
- ret
-
- .size strchrnul, . - strchrnul
-#endif
diff --git a/newlib/libc/machine/aarch64/strcpy-stub.c b/newlib/libc/machine/aarch64/strcpy-stub.c
deleted file mode 100644
index 966277cad..000000000
--- a/newlib/libc/machine/aarch64/strcpy-stub.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2014, ARM Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-# include "../../string/strcpy.c"
-#else
-/* See strcpy.S */
-#endif
diff --git a/newlib/libc/machine/aarch64/strcpy.S b/newlib/libc/machine/aarch64/strcpy.S
deleted file mode 100644
index 7c40bc5f5..000000000
--- a/newlib/libc/machine/aarch64/strcpy.S
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- strcpy - copy a string.
-
- Copyright (c) 2013, 2014 ARM Ltd.
- All Rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-/* See strchr-stub.c */
-#else
-
-/* Assumptions:
- *
- * ARMv8-a, AArch64, unaligned accesses, min page size 4k.
- */
-
-/* To test the page crossing code path more thoroughly, compile with
- -DSTRCPY_TEST_PAGE_CROSS - this will force all copies through the slower
- entry path. This option is not intended for production use. */
-
-/* Arguments and results. */
-#define dstin x0
-#define srcin x1
-
-/* Locals and temporaries. */
-#define src x2
-#define dst x3
-#define data1 x4
-#define data1w w4
-#define data2 x5
-#define data2w w5
-#define has_nul1 x6
-#define has_nul2 x7
-#define tmp1 x8
-#define tmp2 x9
-#define tmp3 x10
-#define tmp4 x11
-#define zeroones x12
-#define data1a x13
-#define data2a x14
-#define pos x15
-#define len x16
-#define to_align x17
-
- .macro def_fn f p2align=0
- .text
- .p2align \p2align
- .global \f
- .type \f, %function
-\f:
- .endm
-
- /* NUL detection works on the principle that (X - 1) & (~X) & 0x80
- (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and
- can be done in parallel across the entire word. */
-
-#define REP8_01 0x0101010101010101
-#define REP8_7f 0x7f7f7f7f7f7f7f7f
-#define REP8_80 0x8080808080808080
-
- /* AArch64 systems have a minimum page size of 4k. We can do a quick
- page size check for crossing this boundary on entry and if we
- do not, then we can short-circuit much of the entry code. We
- expect early page-crossing strings to be rare (probability of
- 16/MIN_PAGE_SIZE ~= 0.4%), so the branch should be quite
- predictable, even with random strings.
-
- We don't bother checking for larger page sizes, the cost of setting
- up the correct page size is just not worth the extra gain from
- a small reduction in the cases taking the slow path. Note that
- we only care about whether the first fetch, which may be
- misaligned, crosses a page boundary - after that we move to aligned
- fetches for the remainder of the string. */
-
-#define MIN_PAGE_P2 12
-#define MIN_PAGE_SIZE (1 << MIN_PAGE_P2)
-
-def_fn strcpy p2align=6
- /* For moderately short strings, the fastest way to do the copy is to
- calculate the length of the string in the same way as strlen, then
- essentially do a memcpy of the result. This avoids the need for
- multiple byte copies and further means that by the time we
- reach the bulk copy loop we know we can always use DWord
- accesses. We expect strcpy to rarely be called repeatedly
- with the same source string, so branch prediction is likely to
- always be difficult - we mitigate against this by preferring
- conditional select operations over branches whenever this is
- feasible. */
- add tmp2, srcin, #15
- mov zeroones, #REP8_01
- and to_align, srcin, #15
- eor tmp2, tmp2, srcin
- mov dst, dstin
- neg tmp1, to_align
-#ifdef STRCPY_TEST_PAGE_CROSS
- b .Lpage_cross
-#else
- /* The first fetch will straddle a (possible) page boundary iff
- srcin + 15 causes bit[MIN_PAGE_P2] to change value. A 16-byte
- aligned string will never fail the page align check, so will
- always take the fast path. */
- tbnz tmp2, #MIN_PAGE_P2, .Lpage_cross
-#endif
- ldp data1, data2, [srcin]
- add src, srcin, #16
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- sub tmp3, data2, zeroones
- orr tmp4, data2, #REP8_7f
- bic has_nul1, tmp1, tmp2
- bics has_nul2, tmp3, tmp4
- ccmp has_nul1, #0, #0, eq /* NZCV = 0000 */
- b.ne .Learly_end_found
- stp data1, data2, [dst], #16
- sub src, src, to_align
- sub dst, dst, to_align
- b .Lentry_no_page_cross
-
-.Lpage_cross:
- bic src, srcin, #15
- /* Start by loading two words at [srcin & ~15], then forcing the
- bytes that precede srcin to 0xff. This means they never look
- like termination bytes. */
- ldp data1, data2, [src], #16
- lsl tmp1, tmp1, #3 /* Bytes beyond alignment -> bits. */
- tst to_align, #7
- csetm tmp2, ne
-#ifdef __AARCH64EB__
- lsl tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */
-#else
- lsr tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */
-#endif
- orr data1, data1, tmp2
- orr data2a, data2, tmp2
- cmp to_align, #8
- csinv data1, data1, xzr, lt
- csel data2, data2, data2a, lt
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- sub tmp3, data2, zeroones
- orr tmp4, data2, #REP8_7f
- bic has_nul1, tmp1, tmp2
- bics has_nul2, tmp3, tmp4
- ccmp has_nul1, #0, #0, eq /* NZCV = 0000 */
- b.ne .Learly_end_found
- ldp data1, data2, [src], #16
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- sub tmp3, data2, zeroones
- orr tmp4, data2, #REP8_7f
- bic has_nul1, tmp1, tmp2
- bics has_nul2, tmp3, tmp4
- ccmp has_nul1, #0, #0, eq /* NZCV = 0000 */
- b.ne .Learly_end_found
- /* We've now checked between 16 and 32 bytes, but not found a null,
- so we can safely start bulk copying. Start by refetching the
- first 16 bytes of the real string; we know this can't trap now. */
- ldp data1a, data2a, [srcin]
- stp data1a, data2a, [dst], #16
- sub dst, dst, to_align
- /* Everything is now set up, so we can just fall into the bulk
- copy loop. */
- /* The inner loop deals with two Dwords at a time. This has a
- slightly higher start-up cost, but we should win quite quickly,
- especially on cores with a high number of issue slots per
- cycle, as we get much better parallelism out of the operations. */
-.Lmain_loop:
- stp data1, data2, [dst], #16
-.Lentry_no_page_cross:
- ldp data1, data2, [src], #16
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- sub tmp3, data2, zeroones
- orr tmp4, data2, #REP8_7f
- bic has_nul1, tmp1, tmp2
- bics has_nul2, tmp3, tmp4
- ccmp has_nul1, #0, #0, eq /* NZCV = 0000 */
- b.eq .Lmain_loop
-
- /* Since we know we are copying at least 16 bytes, the fastest way
- to deal with the tail is to determine the location of the
- trailing NUL, then (re)copy the 16 bytes leading up to that. */
- cmp has_nul1, #0
-#ifdef __AARCH64EB__
- /* For big-endian, carry propagation (if the final byte in the
- string is 0x01) means we cannot use has_nul directly. The
- easiest way to get the correct byte is to byte-swap the data
- and calculate the syndrome a second time. */
- csel data1, data1, data2, ne
- rev data1, data1
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- bic has_nul1, tmp1, tmp2
-#else
- csel has_nul1, has_nul1, has_nul2, ne
-#endif
- rev has_nul1, has_nul1
- clz pos, has_nul1
- add tmp1, pos, #72
- add pos, pos, #8
- csel pos, pos, tmp1, ne
- add src, src, pos, lsr #3
- add dst, dst, pos, lsr #3
- ldp data1, data2, [src, #-32]
- stp data1, data2, [dst, #-16]
- ret
-
- /* The string is short (<32 bytes). We don't know exactly how
- short though, yet. Work out the exact length so that we can
- quickly select the optimal copy strategy. */
-.Learly_end_found:
- cmp has_nul1, #0
-#ifdef __AARCH64EB__
- /* For big-endian, carry propagation (if the final byte in the
- string is 0x01) means we cannot use has_nul directly. The
- easiest way to get the correct byte is to byte-swap the data
- and calculate the syndrome a second time. */
- csel data1, data1, data2, ne
- rev data1, data1
- sub tmp1, data1, zeroones
- orr tmp2, data1, #REP8_7f
- bic has_nul1, tmp1, tmp2
-#else
- csel has_nul1, has_nul1, has_nul2, ne
-#endif
- rev has_nul1, has_nul1
- sub tmp1, src, #7
- sub src, src, #15
- clz pos, has_nul1
- csel src, src, tmp1, ne
- sub dst, dstin, srcin
- add src, src, pos, lsr #3 /* Bits to bytes. */
- add dst, dst, src
- sub len, src, srcin
- cmp len, #8
- b.lt .Llt8
- cmp len, #16
- b.lt .Llt16
- /* 16->32 bytes to copy. */
- ldp data1, data2, [srcin]
- ldp data1a, data2a, [src, #-16]
- stp data1, data2, [dstin]
- stp data1a, data2a, [dst, #-16]
- ret
-.Llt16:
- /* 8->15 bytes to copy. */
- ldr data1, [srcin]
- ldr data2, [src, #-8]
- str data1, [dstin]
- str data2, [dst, #-8]
- ret
-.Llt8:
- cmp len, #4
- b.lt .Llt4
- /* 4->7 bytes to copy. */
- ldr data1w, [srcin]
- ldr data2w, [src, #-4]
- str data1w, [dstin]
- str data2w, [dst, #-4]
- ret
-.Llt4:
- cmp len, #2
- b.lt .Llt2
- /* 2->3 bytes to copy. */
- ldrh data1w, [srcin]
- strh data1w, [dstin]
- /* Fall-through, one byte (max) to go. */
-.Llt2:
- /* Null-terminated string. Last character must be zero! */
- strb wzr, [dst, #-1]
- ret
-
- .size strcpy, . - strcpy
-#endif
diff --git a/newlib/libc/machine/aarch64/strrchr-stub.c b/newlib/libc/machine/aarch64/strrchr-stub.c
deleted file mode 100644
index 5923a4446..000000000
--- a/newlib/libc/machine/aarch64/strrchr-stub.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2014, ARM Limited
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-# include "../../string/strrchr.c"
-#else
-/* See strrchr.S */
-#endif
diff --git a/newlib/libc/machine/aarch64/strrchr.S b/newlib/libc/machine/aarch64/strrchr.S
deleted file mode 100644
index d64fc09b1..000000000
--- a/newlib/libc/machine/aarch64/strrchr.S
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- strrchr - find last instance of a character in a string
-
- Copyright (c) 2014, ARM Limited
- All rights Reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * 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.
- * Neither the name of the company nor the names of its contributors
- may be used to endorse or promote products derived from this
- software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
- HOLDER 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. */
-
-#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
-/* See strchr-stub.c */
-#else
-
-/* Assumptions:
- *
- * ARMv8-a, AArch64
- * Neon Available.
- */
-
-/* Arguments and results. */
-#define srcin x0
-#define chrin w1
-
-#define result x0
-
-#define src x2
-#define tmp1 x3
-#define wtmp2 w4
-#define tmp3 x5
-#define src_match x6
-#define src_offset x7
-#define const_m1 x8
-#define tmp4 x9
-#define nul_match x10
-#define chr_match x11
-
-#define vrepchr v0
-#define vdata1 v1
-#define vdata2 v2
-#define vhas_nul1 v3
-#define vhas_nul2 v4
-#define vhas_chr1 v5
-#define vhas_chr2 v6
-#define vrepmask_0 v7
-#define vrepmask_c v16
-#define vend1 v17
-#define vend2 v18
-
-/* Core algorithm.
-
- For each 32-byte hunk we calculate a 64-bit syndrome value, with
- two bits per byte (LSB is always in bits 0 and 1, for both big
- and little-endian systems). For each tuple, bit 0 is set iff
- the relevant byte matched the requested character; bit 1 is set
- iff the relevant byte matched the NUL end of string (we trigger
- off bit0 for the special case of looking for NUL). Since the bits
- in the syndrome reflect exactly the order in which things occur
- in the original string a count_trailing_zeros() operation will
- identify exactly which byte is causing the termination, and why. */
-
-/* Locals and temporaries. */
-
- .macro def_fn f p2align=0
- .text
- .p2align \p2align
- .global \f
- .type \f, %function
-\f:
- .endm
-
-def_fn strrchr
- /* Magic constant 0x40100401 to allow us to identify which lane
- matches the requested byte. Magic constant 0x80200802 used
- similarly for NUL termination. */
- mov wtmp2, #0x0401
- movk wtmp2, #0x4010, lsl #16
- dup vrepchr.16b, chrin
- bic src, srcin, #31 /* Work with aligned 32-byte hunks. */
- dup vrepmask_c.4s, wtmp2
- mov src_offset, #0
- ands tmp1, srcin, #31
- add vrepmask_0.4s, vrepmask_c.4s, vrepmask_c.4s /* equiv: lsl #1 */
- b.eq .Laligned
-
- /* Input string is not 32-byte aligned. Rather than forcing
- the padding bytes to a safe value, we calculate the syndrome
- for all the bytes, but then mask off those bits of the
- syndrome that are related to the padding. */
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- neg tmp1, tmp1
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- and vhas_nul1.16b, vhas_nul1.16b, vrepmask_0.16b
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask_c.16b
- and vhas_nul2.16b, vhas_nul2.16b, vrepmask_0.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask_c.16b
- addp vhas_nul1.16b, vhas_nul1.16b, vhas_nul2.16b // 256->128
- addp vhas_chr1.16b, vhas_chr1.16b, vhas_chr2.16b // 256->128
- addp vhas_nul1.16b, vhas_nul1.16b, vhas_nul1.16b // 128->64
- addp vhas_chr1.16b, vhas_chr1.16b, vhas_chr1.16b // 128->64
- mov nul_match, vhas_nul1.2d[0]
- lsl tmp1, tmp1, #1
- mov const_m1, #~0
- mov chr_match, vhas_chr1.2d[0]
- lsr tmp3, const_m1, tmp1
-
- bic nul_match, nul_match, tmp3 // Mask padding bits.
- bic chr_match, chr_match, tmp3 // Mask padding bits.
- cbnz nul_match, .Ltail
-
-.Lloop:
- cmp chr_match, #0
- csel src_match, src, src_match, ne
- csel src_offset, chr_match, src_offset, ne
-.Laligned:
- ld1 {vdata1.16b, vdata2.16b}, [src], #32
- cmeq vhas_nul1.16b, vdata1.16b, #0
- cmeq vhas_chr1.16b, vdata1.16b, vrepchr.16b
- cmeq vhas_nul2.16b, vdata2.16b, #0
- cmeq vhas_chr2.16b, vdata2.16b, vrepchr.16b
- addp vend1.16b, vhas_nul1.16b, vhas_nul2.16b // 256->128
- and vhas_chr1.16b, vhas_chr1.16b, vrepmask_c.16b
- and vhas_chr2.16b, vhas_chr2.16b, vrepmask_c.16b
- addp vhas_chr1.16b, vhas_chr1.16b, vhas_chr2.16b // 256->128
- addp vend1.16b, vend1.16b, vend1.16b // 128->64
- addp vhas_chr1.16b, vhas_chr1.16b, vhas_chr1.16b // 128->64
- mov nul_match, vend1.2d[0]
- mov chr_match, vhas_chr1.2d[0]
- cbz nul_match, .Lloop
-
- and vhas_nul1.16b, vhas_nul1.16b, vrepmask_0.16b
- and vhas_nul2.16b, vhas_nul2.16b, vrepmask_0.16b
- addp vhas_nul1.16b, vhas_nul1.16b, vhas_nul2.16b
- addp vhas_nul1.16b, vhas_nul1.16b, vhas_nul1.16b
- mov nul_match, vhas_nul1.2d[0]
-
-.Ltail:
- /* Work out exactly where the string ends. */
- sub tmp4, nul_match, #1
- eor tmp4, tmp4, nul_match
- ands chr_match, chr_match, tmp4
- /* And pick the values corresponding to the last match. */
- csel src_match, src, src_match, ne
- csel src_offset, chr_match, src_offset, ne
-
- /* Count down from the top of the syndrome to find the last match. */
- clz tmp3, src_offset
- /* Src_match points beyond the word containing the match, so we can
- simply subtract half the bit-offset into the syndrome. Because
- we are counting down, we need to go back one more character. */
- add tmp3, tmp3, #2
- sub result, src_match, tmp3, lsr #1
- /* But if the syndrome shows no match was found, then return NULL. */
- cmp src_offset, #0
- csel result, result, xzr, ne
-
- ret
-
- .size strrchr, . - strrchr
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 06:17:46 +0300