Add RISC-V port for newlib
Contributor list:
- Andrew Waterman <andrew@sifive.com>
- Palmer Dabbelt <palmer@dabbelt.com>
- Kito Cheng <kito.cheng@gmail.com>
- Scott Beamer <sbeamer@eecs.berkeley.edu>
This commit is contained in:
Kito Cheng
Jeff Johnston
parent
7e69f983a4
commit
363dbb9e44
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@ -1133,3 +1133,16 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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(49) - SiFive Inc. (riscv-* targets)
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Copyright (c) 2017 SiFive Inc. All rights reserved.
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This copyrighted material is made available to anyone wishing to use,
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modify, copy, or redistribute it subject to the terms and conditions
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of the BSD License. This program is distributed in the hope that
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it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
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including the implied warranties of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. A copy of this license is available at
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http://www.opensource.org/licenses.
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@ -255,6 +255,12 @@ case "${host_cpu}" in
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powerpc*)
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machine_dir=powerpc
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;;
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riscv*)
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libm_machine_dir=riscv
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machine_dir=riscv
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newlib_cflags="${newlib_cflags}"
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default_newlib_atexit_dynamic_alloc="no"
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;;
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rl78)
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machine_dir=rl78
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DSMALL_MEMORY"
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@ -806,6 +812,9 @@ case "${host}" in
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newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL -D_NO_POSIX_SPAWN"
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syscall_dir=syscalls
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;;
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riscv*-*-*)
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syscall_dir=syscalls
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;;
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sh*-*-*)
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default_newlib_io_long_long="yes"
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syscall_dir=syscalls
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@ -170,6 +170,10 @@
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __riscv
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#define __IEEE_LITTLE_ENDIAN
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#endif
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#ifdef __i960__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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@ -358,6 +358,15 @@ _BEGIN_STD_C
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#define _JBLEN 12
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#endif
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#ifdef __riscv
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#define _JBTYPE long
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#ifdef __riscv_32e
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#define _JBLEN ((4*sizeof(long))/sizeof(long))
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#else
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#define _JBLEN ((14*sizeof(long) + 12*sizeof(double))/sizeof(long))
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#endif
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#endif
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#ifdef _JBLEN
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#ifdef _JBTYPE
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typedef _JBTYPE jmp_buf[_JBLEN];
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@ -1,7 +1,7 @@
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#ifndef _MACHTIME_H_
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#define _MACHTIME_H_
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#if defined(__rtems__) || defined(__VISIUM__)
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#if defined(__rtems__) || defined(__VISIUM__) || defined(__riscv)
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#define _CLOCKS_PER_SEC_ 1000000
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#elif defined(__aarch64__) || defined(__arm__) || defined(__thumb__)
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#define _CLOCKS_PER_SEC_ 100
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@ -75,7 +75,7 @@
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#define _POINTER_INT short
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#endif
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#if defined(__m68k__) || defined(__mc68000__)
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#if defined(__m68k__) || defined(__mc68000__) || defined(__riscv)
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#define _READ_WRITE_RETURN_TYPE _ssize_t
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#endif
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@ -813,6 +813,7 @@ m88k
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mep
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microblaze
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mips
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riscv
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mn10200
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mn10300
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moxie
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@ -11888,6 +11889,8 @@ subdirs="$subdirs a29k"
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microblaze ) subdirs="$subdirs microblaze"
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;;
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mips) subdirs="$subdirs mips"
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;;
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riscv) subdirs="$subdirs riscv"
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;;
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mn10200) subdirs="$subdirs mn10200"
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;;
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@ -52,6 +52,7 @@ if test -n "${machine_dir}"; then
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mep ) AC_CONFIG_SUBDIRS(mep) ;;
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microblaze ) AC_CONFIG_SUBDIRS(microblaze) ;;
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mips) AC_CONFIG_SUBDIRS(mips) ;;
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riscv) AC_CONFIG_SUBDIRS(riscv) ;;
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mn10200) AC_CONFIG_SUBDIRS(mn10200) ;;
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mn10300) AC_CONFIG_SUBDIRS(mn10300) ;;
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moxie) AC_CONFIG_SUBDIRS(moxie) ;;
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@ -0,0 +1,16 @@
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## Process this file with automake to generate Makefile.in
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AUTOMAKE_OPTIONS = cygnus
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INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
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AM_CCASFLAGS = $(INCLUDES)
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noinst_LIBRARIES = lib.a
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lib_a_SOURCES = memset.S memcpy.c strlen.c strcpy.c strcmp.S setjmp.S ieeefp.c ffs.c
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lib_a_CCASFLAGS=$(AM_CCASFLAGS)
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lib_a_CFLAGS=$(AM_CFLAGS)
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ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
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CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
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@ -0,0 +1,491 @@
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# Makefile.in generated by automake 1.11.6 from Makefile.am.
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# @configure_input@
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# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
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# Foundation, Inc.
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# This Makefile.in is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE.
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@SET_MAKE@
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VPATH = @srcdir@
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am__make_dryrun = \
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{ \
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am__dry=no; \
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case $$MAKEFLAGS in \
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*\\[\ \ ]*) \
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echo 'am--echo: ; @echo "AM" OK' | $(MAKE) -f - 2>/dev/null \
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| grep '^AM OK$$' >/dev/null || am__dry=yes;; \
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*) \
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for am__flg in $$MAKEFLAGS; do \
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case $$am__flg in \
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*=*|--*) ;; \
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*n*) am__dry=yes; break;; \
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esac; \
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done;; \
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esac; \
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test $$am__dry = yes; \
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}
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pkgdatadir = $(datadir)/@PACKAGE@
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pkgincludedir = $(includedir)/@PACKAGE@
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pkglibdir = $(libdir)/@PACKAGE@
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pkglibexecdir = $(libexecdir)/@PACKAGE@
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am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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install_sh_DATA = $(install_sh) -c -m 644
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install_sh_PROGRAM = $(install_sh) -c
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install_sh_SCRIPT = $(install_sh) -c
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INSTALL_HEADER = $(INSTALL_DATA)
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transform = $(program_transform_name)
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NORMAL_INSTALL = :
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PRE_INSTALL = :
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POST_INSTALL = :
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NORMAL_UNINSTALL = :
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PRE_UNINSTALL = :
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POST_UNINSTALL = :
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build_triplet = @build@
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host_triplet = @host@
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subdir = .
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DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
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$(top_srcdir)/configure $(am__configure_deps) \
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$(srcdir)/../../../../mkinstalldirs
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am__aclocal_m4_deps = $(top_srcdir)/../../../acinclude.m4 \
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$(top_srcdir)/configure.in
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$(ACLOCAL_M4)
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am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
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configure.lineno config.status.lineno
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mkinstalldirs = $(SHELL) $(top_srcdir)/../../../../mkinstalldirs
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CONFIG_CLEAN_FILES =
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CONFIG_CLEAN_VPATH_FILES =
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LIBRARIES = $(noinst_LIBRARIES)
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am_lib_a_OBJECTS = lib_a-memset.$(OBJEXT) lib_a-memcpy.$(OBJEXT) \
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lib_a-strlen.$(OBJEXT) lib_a-strcpy.$(OBJEXT) \
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lib_a-strcmp.$(OBJEXT) lib_a-setjmp.$(OBJEXT) \
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lib_a-ieeefp.$(OBJEXT) lib_a-ffs.$(OBJEXT)
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lib_a_OBJECTS = $(am_lib_a_OBJECTS)
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am__depfiles_maybe =
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COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
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$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
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CCLD = $(CC)
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LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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SOURCES = $(lib_a_SOURCES)
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am__can_run_installinfo = \
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case $$AM_UPDATE_INFO_DIR in \
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n|no|NO) false;; \
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*) (install-info --version) >/dev/null 2>&1;; \
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esac
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ETAGS = etags
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CTAGS = ctags
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ACLOCAL = @ACLOCAL@
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AMTAR = @AMTAR@
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AR = @AR@
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AS = @AS@
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AUTOCONF = @AUTOCONF@
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AUTOHEADER = @AUTOHEADER@
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AUTOMAKE = @AUTOMAKE@
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AWK = @AWK@
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CC = @CC@
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CCAS = @CCAS@
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CCASFLAGS = @CCASFLAGS@
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CCDEPMODE = @CCDEPMODE@
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CYGPATH_W = @CYGPATH_W@
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DEFS = @DEFS@
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DEPDIR = @DEPDIR@
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ECHO_C = @ECHO_C@
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ECHO_N = @ECHO_N@
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ECHO_T = @ECHO_T@
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INSTALL = @INSTALL@
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INSTALL_DATA = @INSTALL_DATA@
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INSTALL_PROGRAM = @INSTALL_PROGRAM@
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INSTALL_SCRIPT = @INSTALL_SCRIPT@
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INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
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LDFLAGS = @LDFLAGS@
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LIBOBJS = @LIBOBJS@
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LIBS = @LIBS@
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LTLIBOBJS = @LTLIBOBJS@
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MAINT = @MAINT@
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MAKEINFO = @MAKEINFO@
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MKDIR_P = @MKDIR_P@
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NEWLIB_CFLAGS = @NEWLIB_CFLAGS@
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NO_INCLUDE_LIST = @NO_INCLUDE_LIST@
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OBJEXT = @OBJEXT@
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PACKAGE = @PACKAGE@
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PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
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PACKAGE_NAME = @PACKAGE_NAME@
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PACKAGE_STRING = @PACKAGE_STRING@
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PACKAGE_TARNAME = @PACKAGE_TARNAME@
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PACKAGE_URL = @PACKAGE_URL@
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PACKAGE_VERSION = @PACKAGE_VERSION@
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PATH_SEPARATOR = @PATH_SEPARATOR@
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RANLIB = @RANLIB@
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READELF = @READELF@
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SET_MAKE = @SET_MAKE@
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SHELL = @SHELL@
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STRIP = @STRIP@
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VERSION = @VERSION@
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abs_builddir = @abs_builddir@
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abs_srcdir = @abs_srcdir@
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abs_top_builddir = @abs_top_builddir@
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abs_top_srcdir = @abs_top_srcdir@
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aext = @aext@
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am__include = @am__include@
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am__leading_dot = @am__leading_dot@
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am__quote = @am__quote@
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build = @build@
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build_alias = @build_alias@
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build_cpu = @build_cpu@
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build_os = @build_os@
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build_vendor = @build_vendor@
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builddir = @builddir@
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datadir = @datadir@
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datarootdir = @datarootdir@
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docdir = @docdir@
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dvidir = @dvidir@
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exec_prefix = @exec_prefix@
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host = @host@
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host_alias = @host_alias@
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host_cpu = @host_cpu@
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host_os = @host_os@
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host_vendor = @host_vendor@
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htmldir = @htmldir@
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includedir = @includedir@
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infodir = @infodir@
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install_sh = @install_sh@
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libdir = @libdir@
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libexecdir = @libexecdir@
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libm_machine_dir = @libm_machine_dir@
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localedir = @localedir@
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localstatedir = @localstatedir@
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lpfx = @lpfx@
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machine_dir = @machine_dir@
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mandir = @mandir@
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mkdir_p = @mkdir_p@
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newlib_basedir = @newlib_basedir@
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oext = @oext@
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oldincludedir = @oldincludedir@
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pdfdir = @pdfdir@
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prefix = @prefix@
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program_transform_name = @program_transform_name@
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psdir = @psdir@
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sbindir = @sbindir@
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sharedstatedir = @sharedstatedir@
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srcdir = @srcdir@
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sys_dir = @sys_dir@
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sysconfdir = @sysconfdir@
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top_build_prefix = @top_build_prefix@
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top_builddir = @top_builddir@
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top_srcdir = @top_srcdir@
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AUTOMAKE_OPTIONS = cygnus
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AM_CCASFLAGS = $(INCLUDES)
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noinst_LIBRARIES = lib.a
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ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
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CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
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all: all-am
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*config.status*) \
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clean-noinstLIBRARIES:
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-rm -f lib.a
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$(lib_a_AR) lib.a $(lib_a_OBJECTS) $(lib_a_LIBADD)
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$(RANLIB) lib.a
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mostlyclean-compile:
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-rm -f *.$(OBJEXT)
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distclean-compile:
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-rm -f *.tab.c
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.S.o:
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$(CPPASCOMPILE) -c -o $@ $<
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.S.obj:
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$(CPPASCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
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lib_a-memset.o: memset.S
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lib_a-memset.obj: memset.S
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$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-memset.obj `if test -f 'memset.S'; then $(CYGPATH_W) 'memset.S'; else $(CYGPATH_W) '$(srcdir)/memset.S'; fi`
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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-setjmp.o: setjmp.S
|
||||
$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-setjmp.o `test -f 'setjmp.S' || echo '$(srcdir)/'`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`
|
||||
|
||||
.c.o:
|
||||
$(COMPILE) -c $<
|
||||
|
||||
.c.obj:
|
||||
$(COMPILE) -c `$(CYGPATH_W) '$<'`
|
||||
|
||||
lib_a-memcpy.o: memcpy.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memcpy.o `test -f 'memcpy.c' || echo '$(srcdir)/'`memcpy.c
|
||||
|
||||
lib_a-memcpy.obj: memcpy.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-memcpy.obj `if test -f 'memcpy.c'; then $(CYGPATH_W) 'memcpy.c'; else $(CYGPATH_W) '$(srcdir)/memcpy.c'; fi`
|
||||
|
||||
lib_a-strlen.o: strlen.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strlen.o `test -f 'strlen.c' || echo '$(srcdir)/'`strlen.c
|
||||
|
||||
lib_a-strlen.obj: strlen.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strlen.obj `if test -f 'strlen.c'; then $(CYGPATH_W) 'strlen.c'; else $(CYGPATH_W) '$(srcdir)/strlen.c'; fi`
|
||||
|
||||
lib_a-strcpy.o: strcpy.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcpy.o `test -f 'strcpy.c' || echo '$(srcdir)/'`strcpy.c
|
||||
|
||||
lib_a-strcpy.obj: strcpy.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-strcpy.obj `if test -f 'strcpy.c'; then $(CYGPATH_W) 'strcpy.c'; else $(CYGPATH_W) '$(srcdir)/strcpy.c'; fi`
|
||||
|
||||
lib_a-ieeefp.o: ieeefp.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-ieeefp.o `test -f 'ieeefp.c' || echo '$(srcdir)/'`ieeefp.c
|
||||
|
||||
lib_a-ieeefp.obj: ieeefp.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-ieeefp.obj `if test -f 'ieeefp.c'; then $(CYGPATH_W) 'ieeefp.c'; else $(CYGPATH_W) '$(srcdir)/ieeefp.c'; fi`
|
||||
|
||||
lib_a-ffs.o: ffs.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-ffs.o `test -f 'ffs.c' || echo '$(srcdir)/'`ffs.c
|
||||
|
||||
lib_a-ffs.obj: ffs.c
|
||||
$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-ffs.obj `if test -f 'ffs.c'; then $(CYGPATH_W) 'ffs.c'; else $(CYGPATH_W) '$(srcdir)/ffs.c'; fi`
|
||||
|
||||
ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||
mkid -fID $$unique
|
||||
tags: TAGS
|
||||
|
||||
TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
|
||||
$(TAGS_FILES) $(LISP)
|
||||
set x; \
|
||||
here=`pwd`; \
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||
shift; \
|
||||
if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
|
||||
test -n "$$unique" || unique=$$empty_fix; \
|
||||
if test $$# -gt 0; then \
|
||||
$(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
|
||||
"$$@" $$unique; \
|
||||
else \
|
||||
$(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
|
||||
$$unique; \
|
||||
fi; \
|
||||
fi
|
||||
ctags: CTAGS
|
||||
CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
|
||||
$(TAGS_FILES) $(LISP)
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||
test -z "$(CTAGS_ARGS)$$unique" \
|
||||
|| $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
|
||||
$$unique
|
||||
|
||||
GTAGS:
|
||||
here=`$(am__cd) $(top_builddir) && pwd` \
|
||||
&& $(am__cd) $(top_srcdir) \
|
||||
&& gtags -i $(GTAGS_ARGS) "$$here"
|
||||
|
||||
distclean-tags:
|
||||
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
|
||||
check-am:
|
||||
check: check-am
|
||||
all-am: Makefile $(LIBRARIES)
|
||||
installdirs:
|
||||
install: install-am
|
||||
install-exec: install-exec-am
|
||||
install-data: install-data-am
|
||||
uninstall: uninstall-am
|
||||
|
||||
install-am: all-am
|
||||
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
|
||||
|
||||
installcheck: installcheck-am
|
||||
install-strip:
|
||||
if test -z '$(STRIP)'; then \
|
||||
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
|
||||
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
|
||||
install; \
|
||||
else \
|
||||
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
|
||||
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
|
||||
"INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
|
||||
fi
|
||||
mostlyclean-generic:
|
||||
|
||||
clean-generic:
|
||||
|
||||
distclean-generic:
|
||||
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
|
||||
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
|
||||
|
||||
maintainer-clean-generic:
|
||||
@echo "This command is intended for maintainers to use"
|
||||
@echo "it deletes files that may require special tools to rebuild."
|
||||
clean: clean-am
|
||||
|
||||
clean-am: clean-generic clean-noinstLIBRARIES mostlyclean-am
|
||||
|
||||
distclean: distclean-am
|
||||
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
|
||||
-rm -f Makefile
|
||||
distclean-am: clean-am distclean-compile distclean-generic \
|
||||
distclean-tags
|
||||
|
||||
dvi: dvi-am
|
||||
|
||||
dvi-am:
|
||||
|
||||
html: html-am
|
||||
|
||||
html-am:
|
||||
|
||||
info: info-am
|
||||
|
||||
info-am:
|
||||
|
||||
install-data-am:
|
||||
|
||||
install-dvi: install-dvi-am
|
||||
|
||||
install-dvi-am:
|
||||
|
||||
install-exec-am:
|
||||
|
||||
install-html: install-html-am
|
||||
|
||||
install-html-am:
|
||||
|
||||
install-info: install-info-am
|
||||
|
||||
install-info-am:
|
||||
|
||||
install-man:
|
||||
|
||||
install-pdf: install-pdf-am
|
||||
|
||||
install-pdf-am:
|
||||
|
||||
install-ps: install-ps-am
|
||||
|
||||
install-ps-am:
|
||||
|
||||
installcheck-am:
|
||||
|
||||
maintainer-clean: maintainer-clean-am
|
||||
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
|
||||
-rm -rf $(top_srcdir)/autom4te.cache
|
||||
-rm -f Makefile
|
||||
maintainer-clean-am: distclean-am maintainer-clean-generic
|
||||
|
||||
mostlyclean: mostlyclean-am
|
||||
|
||||
mostlyclean-am: mostlyclean-compile mostlyclean-generic
|
||||
|
||||
pdf: pdf-am
|
||||
|
||||
pdf-am:
|
||||
|
||||
ps: ps-am
|
||||
|
||||
ps-am:
|
||||
|
||||
uninstall-am:
|
||||
|
||||
.MAKE: install-am install-strip
|
||||
|
||||
.PHONY: CTAGS GTAGS all all-am am--refresh check check-am clean \
|
||||
clean-generic clean-noinstLIBRARIES ctags distclean \
|
||||
distclean-compile distclean-generic distclean-tags dvi dvi-am \
|
||||
html html-am info info-am install install-am install-data \
|
||||
install-data-am install-dvi install-dvi-am install-exec \
|
||||
install-exec-am install-html install-html-am install-info \
|
||||
install-info-am install-man install-pdf install-pdf-am \
|
||||
install-ps install-ps-am install-strip installcheck \
|
||||
installcheck-am installdirs maintainer-clean \
|
||||
maintainer-clean-generic mostlyclean mostlyclean-compile \
|
||||
mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \
|
||||
uninstall-am
|
||||
|
||||
|
||||
# Tell versions [3.59,3.63) of GNU make to not export all variables.
|
||||
# Otherwise a system limit (for SysV at least) may be exceeded.
|
||||
.NOEXPORT:
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,14 @@
|
|||
dnl This is the newlib/libc/machine/mips configure.in file.
|
||||
dnl Process this file with autoconf to produce a configure script.
|
||||
|
||||
AC_PREREQ(2.59)
|
||||
AC_INIT([newlib],[NEWLIB_VERSION])
|
||||
AC_CONFIG_SRCDIR([memset.S])
|
||||
|
||||
dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
|
||||
AC_CONFIG_AUX_DIR(../../../..)
|
||||
|
||||
NEWLIB_CONFIGURE(../../..)
|
||||
|
||||
AC_CONFIG_FILES([Makefile])
|
||||
AC_OUTPUT
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
#include <strings.h>
|
||||
|
||||
int
|
||||
ffs (int word)
|
||||
{
|
||||
#if __riscv_xlen == 32
|
||||
return (__builtin_ffs (word));
|
||||
#else
|
||||
int i;
|
||||
|
||||
if (!word)
|
||||
return 0;
|
||||
|
||||
i = 0;
|
||||
for (;;)
|
||||
{
|
||||
if (((1 << i++) & word) != 0)
|
||||
return i;
|
||||
}
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
|
@ -0,0 +1,110 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <ieeefp.h>
|
||||
|
||||
#ifdef __riscv_flen
|
||||
static void
|
||||
fssr(unsigned value)
|
||||
{
|
||||
asm volatile ("fssr %0" :: "r"(value));
|
||||
}
|
||||
|
||||
static unsigned
|
||||
frsr()
|
||||
{
|
||||
unsigned value;
|
||||
asm volatile ("frsr %0" : "=r" (value));
|
||||
return value;
|
||||
}
|
||||
|
||||
static fp_rnd
|
||||
frm_fp_rnd (unsigned frm)
|
||||
{
|
||||
switch (frm)
|
||||
{
|
||||
case 0: return FP_RN;
|
||||
case 1: return FP_RZ;
|
||||
case 2: return FP_RM;
|
||||
case 3: return FP_RP;
|
||||
/* 4 ~ 7 is invalid value, so just retun FP_RP. */
|
||||
default:return FP_RP;
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* __riscv_flen */
|
||||
|
||||
fp_except
|
||||
fpgetmask(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
fp_rnd
|
||||
fpgetround(void)
|
||||
{
|
||||
#ifdef __riscv_flen
|
||||
unsigned rm = (frsr () >> 5) & 0x7;
|
||||
return frm_fp_rnd (rm);
|
||||
#else
|
||||
return FP_RZ;
|
||||
#endif /* __riscv_flen */
|
||||
}
|
||||
|
||||
fp_except
|
||||
fpgetsticky(void)
|
||||
{
|
||||
#ifdef __riscv_flen
|
||||
return frsr () & 0x1f;
|
||||
#else
|
||||
return 0;
|
||||
#endif /* __riscv_flen */
|
||||
}
|
||||
|
||||
fp_except
|
||||
fpsetmask(fp_except mask)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
fp_rnd
|
||||
fpsetround(fp_rnd rnd_dir)
|
||||
{
|
||||
#ifdef __riscv_flen
|
||||
unsigned fsr = frsr ();
|
||||
unsigned rm = (fsr >> 5) & 0x7;
|
||||
unsigned new_rm;
|
||||
switch (rnd_dir)
|
||||
{
|
||||
case FP_RN: new_rm = 0;
|
||||
case FP_RZ: new_rm = 1;
|
||||
case FP_RM: new_rm = 2;
|
||||
case FP_RP: new_rm = 3;
|
||||
default: return -1;
|
||||
}
|
||||
fssr (new_rm << 5 | fsr & 0x1f);
|
||||
return frm_fp_rnd (rm);
|
||||
#else
|
||||
return -1;
|
||||
#endif /* __riscv_flen */
|
||||
}
|
||||
|
||||
fp_except
|
||||
fpsetsticky(fp_except sticky)
|
||||
{
|
||||
#ifdef __riscv_flen
|
||||
unsigned fsr = frsr ();
|
||||
fssr (sticky & 0x1f | fsr & ~0x1f);
|
||||
return fsr & 0x1f;
|
||||
#else
|
||||
return -1;
|
||||
#endif /* __riscv_flen */
|
||||
}
|
||||
|
|
@ -0,0 +1,42 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#ifndef _FENV_H
|
||||
#define _FENV_H
|
||||
|
||||
#include <sys/fenv.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Exception */
|
||||
int feclearexcept(int excepts);
|
||||
int fegetexceptflag(fexcept_t *flagp, int excepts);
|
||||
int feraiseexcept(int excepts);
|
||||
int fesetexceptflag(const fexcept_t *flagp, int excepts);
|
||||
int fetestexcept(int excepts);
|
||||
|
||||
/* Rounding mode */
|
||||
int fegetround(void);
|
||||
int fesetround(int rounding_mode);
|
||||
|
||||
/* Float environment */
|
||||
int fegetenv(fenv_t *envp);
|
||||
int feholdexcept(fenv_t *envp);
|
||||
int fesetenv(const fenv_t *envp);
|
||||
int feupdateenv(const fenv_t *envp);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,81 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#define unlikely(X) __builtin_expect (!!(X), 0)
|
||||
|
||||
void *
|
||||
memcpy(void *__restrict aa, const void *__restrict bb, size_t n)
|
||||
{
|
||||
#define BODY(a, b, t) { \
|
||||
t tt = *b; \
|
||||
a++, b++; \
|
||||
*(a - 1) = tt; \
|
||||
}
|
||||
|
||||
char *a = (char *)aa;
|
||||
const char *b = (const char *)bb;
|
||||
char *end = a + n;
|
||||
uintptr_t msk = sizeof (long) - 1;
|
||||
if (unlikely ((((uintptr_t)a & msk) != ((uintptr_t)b & msk))
|
||||
|| n < sizeof (long)))
|
||||
{
|
||||
small:
|
||||
if (__builtin_expect (a < end, 1))
|
||||
while (a < end)
|
||||
BODY (a, b, char);
|
||||
return aa;
|
||||
}
|
||||
|
||||
if (unlikely (((uintptr_t)a & msk) != 0))
|
||||
while ((uintptr_t)a & msk)
|
||||
BODY (a, b, char);
|
||||
|
||||
long *la = (long *)a;
|
||||
const long *lb = (const long *)b;
|
||||
long *lend = (long *)((uintptr_t)end & ~msk);
|
||||
|
||||
if (unlikely (la < (lend - 8)))
|
||||
{
|
||||
while (la < (lend - 8))
|
||||
{
|
||||
long b0 = *lb++;
|
||||
long b1 = *lb++;
|
||||
long b2 = *lb++;
|
||||
long b3 = *lb++;
|
||||
long b4 = *lb++;
|
||||
long b5 = *lb++;
|
||||
long b6 = *lb++;
|
||||
long b7 = *lb++;
|
||||
long b8 = *lb++;
|
||||
*la++ = b0;
|
||||
*la++ = b1;
|
||||
*la++ = b2;
|
||||
*la++ = b3;
|
||||
*la++ = b4;
|
||||
*la++ = b5;
|
||||
*la++ = b6;
|
||||
*la++ = b7;
|
||||
*la++ = b8;
|
||||
}
|
||||
}
|
||||
|
||||
while (la < lend)
|
||||
BODY (la, lb, long);
|
||||
|
||||
a = (char *)la;
|
||||
b = (const char *)lb;
|
||||
if (unlikely (a < end))
|
||||
goto small;
|
||||
return aa;
|
||||
}
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
.text
|
||||
.global memset
|
||||
.type memset, @function
|
||||
memset:
|
||||
li t1, 15
|
||||
move a4, a0
|
||||
bleu a2, t1, .Ltiny
|
||||
and a5, a4, 15
|
||||
bnez a5, .Lmisaligned
|
||||
|
||||
.Laligned:
|
||||
bnez a1, .Lwordify
|
||||
|
||||
.Lwordified:
|
||||
and a3, a2, ~15
|
||||
and a2, a2, 15
|
||||
add a3, a3, a4
|
||||
|
||||
#if __riscv_xlen == 64
|
||||
1:sd a1, 0(a4)
|
||||
sd a1, 8(a4)
|
||||
#else
|
||||
1:sw a1, 0(a4)
|
||||
sw a1, 4(a4)
|
||||
sw a1, 8(a4)
|
||||
sw a1, 12(a4)
|
||||
#endif
|
||||
add a4, a4, 16
|
||||
bltu a4, a3, 1b
|
||||
|
||||
bnez a2, .Ltiny
|
||||
ret
|
||||
|
||||
.Ltiny:
|
||||
sub a3, t1, a2
|
||||
sll a3, a3, 2
|
||||
1:auipc t0, %pcrel_hi(.Ltable)
|
||||
add a3, a3, t0
|
||||
.option push
|
||||
.option norvc
|
||||
.Ltable_misaligned:
|
||||
jr a3, %pcrel_lo(1b)
|
||||
.Ltable:
|
||||
sb a1,14(a4)
|
||||
sb a1,13(a4)
|
||||
sb a1,12(a4)
|
||||
sb a1,11(a4)
|
||||
sb a1,10(a4)
|
||||
sb a1, 9(a4)
|
||||
sb a1, 8(a4)
|
||||
sb a1, 7(a4)
|
||||
sb a1, 6(a4)
|
||||
sb a1, 5(a4)
|
||||
sb a1, 4(a4)
|
||||
sb a1, 3(a4)
|
||||
sb a1, 2(a4)
|
||||
sb a1, 1(a4)
|
||||
sb a1, 0(a4)
|
||||
.option pop
|
||||
ret
|
||||
|
||||
.Lwordify:
|
||||
and a1, a1, 0xFF
|
||||
sll a3, a1, 8
|
||||
or a1, a1, a3
|
||||
sll a3, a1, 16
|
||||
or a1, a1, a3
|
||||
#if __riscv_xlen == 64
|
||||
sll a3, a1, 32
|
||||
or a1, a1, a3
|
||||
#endif
|
||||
j .Lwordified
|
||||
|
||||
.Lmisaligned:
|
||||
sll a3, a5, 2
|
||||
1:auipc t0, %pcrel_hi(.Ltable_misaligned)
|
||||
add a3, a3, t0
|
||||
mv t0, ra
|
||||
jalr a3, %pcrel_lo(1b)
|
||||
mv ra, t0
|
||||
|
||||
add a5, a5, -16
|
||||
sub a4, a4, a5
|
||||
add a2, a2, a5
|
||||
bleu a2, t1, .Ltiny
|
||||
j .Laligned
|
||||
.size memset, .-memset
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <sys/asm.h>
|
||||
|
||||
/* int setjmp (jmp_buf); */
|
||||
.globl setjmp
|
||||
.type setjmp, @function
|
||||
setjmp:
|
||||
REG_S ra, 0*SZREG(a0)
|
||||
REG_S s0, 1*SZREG(a0)
|
||||
REG_S s1, 2*SZREG(a0)
|
||||
|
||||
#ifndef __riscv_32e
|
||||
REG_S s2, 3*SZREG(a0)
|
||||
REG_S s3, 4*SZREG(a0)
|
||||
REG_S s4, 5*SZREG(a0)
|
||||
REG_S s5, 6*SZREG(a0)
|
||||
REG_S s6, 7*SZREG(a0)
|
||||
REG_S s7, 8*SZREG(a0)
|
||||
REG_S s8, 9*SZREG(a0)
|
||||
REG_S s9, 10*SZREG(a0)
|
||||
REG_S s10,11*SZREG(a0)
|
||||
REG_S s11,12*SZREG(a0)
|
||||
REG_S sp, 13*SZREG(a0)
|
||||
#else
|
||||
REG_S sp, 3*SZREG(a0)
|
||||
#endif
|
||||
|
||||
#ifndef __riscv_float_abi_soft
|
||||
FREG_S fs0, 14*SZREG+ 0*SZFREG(a0)
|
||||
FREG_S fs1, 14*SZREG+ 1*SZFREG(a0)
|
||||
FREG_S fs2, 14*SZREG+ 2*SZFREG(a0)
|
||||
FREG_S fs3, 14*SZREG+ 3*SZFREG(a0)
|
||||
FREG_S fs4, 14*SZREG+ 4*SZFREG(a0)
|
||||
FREG_S fs5, 14*SZREG+ 5*SZFREG(a0)
|
||||
FREG_S fs6, 14*SZREG+ 6*SZFREG(a0)
|
||||
FREG_S fs7, 14*SZREG+ 7*SZFREG(a0)
|
||||
FREG_S fs8, 14*SZREG+ 8*SZFREG(a0)
|
||||
FREG_S fs9, 14*SZREG+ 9*SZFREG(a0)
|
||||
FREG_S fs10,14*SZREG+10*SZFREG(a0)
|
||||
FREG_S fs11,14*SZREG+11*SZFREG(a0)
|
||||
#endif
|
||||
|
||||
li a0, 0
|
||||
ret
|
||||
.size setjmp, .-setjmp
|
||||
|
||||
/* volatile void longjmp (jmp_buf, int); */
|
||||
.globl longjmp
|
||||
.type longjmp, @function
|
||||
longjmp:
|
||||
REG_L ra, 0*SZREG(a0)
|
||||
REG_L s0, 1*SZREG(a0)
|
||||
REG_L s1, 2*SZREG(a0)
|
||||
#ifndef __riscv_32e
|
||||
REG_L s2, 3*SZREG(a0)
|
||||
REG_L s3, 4*SZREG(a0)
|
||||
REG_L s4, 5*SZREG(a0)
|
||||
REG_L s5, 6*SZREG(a0)
|
||||
REG_L s6, 7*SZREG(a0)
|
||||
REG_L s7, 8*SZREG(a0)
|
||||
REG_L s8, 9*SZREG(a0)
|
||||
REG_L s9, 10*SZREG(a0)
|
||||
REG_L s10,11*SZREG(a0)
|
||||
REG_L s11,12*SZREG(a0)
|
||||
REG_L sp, 13*SZREG(a0)
|
||||
#else
|
||||
REG_L sp, 3*SZREG(a0)
|
||||
#endif
|
||||
|
||||
#ifndef __riscv_float_abi_soft
|
||||
FREG_L fs0, 14*SZREG+ 0*SZFREG(a0)
|
||||
FREG_L fs1, 14*SZREG+ 1*SZFREG(a0)
|
||||
FREG_L fs2, 14*SZREG+ 2*SZFREG(a0)
|
||||
FREG_L fs3, 14*SZREG+ 3*SZFREG(a0)
|
||||
FREG_L fs4, 14*SZREG+ 4*SZFREG(a0)
|
||||
FREG_L fs5, 14*SZREG+ 5*SZFREG(a0)
|
||||
FREG_L fs6, 14*SZREG+ 6*SZFREG(a0)
|
||||
FREG_L fs7, 14*SZREG+ 7*SZFREG(a0)
|
||||
FREG_L fs8, 14*SZREG+ 8*SZFREG(a0)
|
||||
FREG_L fs9, 14*SZREG+ 9*SZFREG(a0)
|
||||
FREG_L fs10,14*SZREG+10*SZFREG(a0)
|
||||
FREG_L fs11,14*SZREG+11*SZFREG(a0)
|
||||
#endif
|
||||
|
||||
seqz a0, a1
|
||||
add a0, a0, a1 # a0 = (a1 == 0) ? 1 : a1
|
||||
ret
|
||||
.size longjmp, .-longjmp
|
||||
|
|
@ -0,0 +1,148 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <sys/asm.h>
|
||||
|
||||
#if BYTE_ORDER != LITTLE_ENDIAN
|
||||
# error
|
||||
#endif
|
||||
|
||||
.text
|
||||
.globl strcmp
|
||||
.type strcmp, @function
|
||||
strcmp:
|
||||
or a4, a0, a1
|
||||
li t2, -1
|
||||
and a4, a4, SZREG-1
|
||||
bnez a4, .Lmisaligned
|
||||
|
||||
#if SZREG == 4
|
||||
li a5, 0x7f7f7f7f
|
||||
#else
|
||||
ld a5, mask
|
||||
#endif
|
||||
|
||||
.macro check_one_word i n
|
||||
REG_L a2, \i*SZREG(a0)
|
||||
REG_L a3, \i*SZREG(a1)
|
||||
|
||||
and t0, a2, a5
|
||||
or t1, a2, a5
|
||||
add t0, t0, a5
|
||||
or t0, t0, t1
|
||||
|
||||
bne t0, t2, .Lnull\i
|
||||
.if \i+1-\n
|
||||
bne a2, a3, .Lmismatch
|
||||
.else
|
||||
add a0, a0, \n*SZREG
|
||||
add a1, a1, \n*SZREG
|
||||
beq a2, a3, .Lloop
|
||||
# fall through to .Lmismatch
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.macro foundnull i n
|
||||
.ifne \i
|
||||
.Lnull\i:
|
||||
add a0, a0, \i*SZREG
|
||||
add a1, a1, \i*SZREG
|
||||
.ifeq \i-1
|
||||
.Lnull0:
|
||||
.endif
|
||||
bne a2, a3, .Lmisaligned
|
||||
li a0, 0
|
||||
ret
|
||||
.endif
|
||||
.endm
|
||||
|
||||
.Lloop:
|
||||
# examine full words at a time, favoring strings of a couple dozen chars
|
||||
#if __riscv_xlen == 32
|
||||
check_one_word 0 5
|
||||
check_one_word 1 5
|
||||
check_one_word 2 5
|
||||
check_one_word 3 5
|
||||
check_one_word 4 5
|
||||
#else
|
||||
check_one_word 0 3
|
||||
check_one_word 1 3
|
||||
check_one_word 2 3
|
||||
#endif
|
||||
# backwards branch to .Lloop contained above
|
||||
|
||||
.Lmismatch:
|
||||
# words don't match, but a2 has no null byte.
|
||||
#if __riscv_xlen == 64
|
||||
sll a4, a2, 48
|
||||
sll a5, a3, 48
|
||||
bne a4, a5, .Lmismatch_upper
|
||||
sll a4, a2, 32
|
||||
sll a5, a3, 32
|
||||
bne a4, a5, .Lmismatch_upper
|
||||
#endif
|
||||
sll a4, a2, 16
|
||||
sll a5, a3, 16
|
||||
bne a4, a5, .Lmismatch_upper
|
||||
|
||||
srl a4, a2, 8*SZREG-16
|
||||
srl a5, a3, 8*SZREG-16
|
||||
sub a0, a4, a5
|
||||
and a1, a0, 0xff
|
||||
bnez a1, 1f
|
||||
ret
|
||||
|
||||
.Lmismatch_upper:
|
||||
srl a4, a4, 8*SZREG-16
|
||||
srl a5, a5, 8*SZREG-16
|
||||
sub a0, a4, a5
|
||||
and a1, a0, 0xff
|
||||
bnez a1, 1f
|
||||
ret
|
||||
|
||||
1:and a4, a4, 0xff
|
||||
and a5, a5, 0xff
|
||||
sub a0, a4, a5
|
||||
ret
|
||||
|
||||
.Lmisaligned:
|
||||
# misaligned
|
||||
lbu a2, 0(a0)
|
||||
lbu a3, 0(a1)
|
||||
add a0, a0, 1
|
||||
add a1, a1, 1
|
||||
bne a2, a3, 1f
|
||||
bnez a2, .Lmisaligned
|
||||
|
||||
1:
|
||||
sub a0, a2, a3
|
||||
ret
|
||||
|
||||
# cases in which a null byte was detected
|
||||
#if __riscv_xlen == 32
|
||||
foundnull 0 5
|
||||
foundnull 1 5
|
||||
foundnull 2 5
|
||||
foundnull 3 5
|
||||
foundnull 4 5
|
||||
#else
|
||||
foundnull 0 3
|
||||
foundnull 1 3
|
||||
foundnull 2 3
|
||||
#endif
|
||||
.size strcmp, .-strcmp
|
||||
|
||||
#if SZREG == 8
|
||||
.section .srodata.cst8,"aM",@progbits,8
|
||||
.align 3
|
||||
mask:
|
||||
.dword 0x7f7f7f7f7f7f7f7f
|
||||
#endif
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <stdint.h>
|
||||
|
||||
char *strcpy(char *dst, const char *src)
|
||||
{
|
||||
char *dst0 = dst;
|
||||
|
||||
#if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__)
|
||||
int misaligned = ((uintptr_t)dst | (uintptr_t)src) & (sizeof (long) - 1);
|
||||
if (__builtin_expect(!misaligned, 1))
|
||||
{
|
||||
long *ldst = (long *)dst;
|
||||
const long *lsrc = (const long *)src;
|
||||
|
||||
while (!__libc_detect_null(*lsrc))
|
||||
*ldst++ = *lsrc++;
|
||||
|
||||
dst = (char *)ldst;
|
||||
src = (const char *)lsrc;
|
||||
|
||||
char c0 = src[0];
|
||||
char c1 = src[1];
|
||||
char c2 = src[2];
|
||||
if (!(*dst++ = c0)) return dst0;
|
||||
if (!(*dst++ = c1)) return dst0;
|
||||
char c3 = src[3];
|
||||
if (!(*dst++ = c2)) return dst0;
|
||||
if (sizeof (long) == 4) goto out;
|
||||
char c4 = src[4];
|
||||
if (!(*dst++ = c3)) return dst0;
|
||||
char c5 = src[5];
|
||||
if (!(*dst++ = c4)) return dst0;
|
||||
char c6 = src[6];
|
||||
if (!(*dst++ = c5)) return dst0;
|
||||
if (!(*dst++ = c6)) return dst0;
|
||||
|
||||
out:
|
||||
*dst++ = 0;
|
||||
return dst0;
|
||||
}
|
||||
#endif /* not PREFER_SIZE_OVER_SPEED */
|
||||
|
||||
char ch;
|
||||
do
|
||||
{
|
||||
ch = *src;
|
||||
src++;
|
||||
dst++;
|
||||
*(dst - 1) = ch;
|
||||
} while (ch);
|
||||
|
||||
return dst0;
|
||||
}
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <stdint.h>
|
||||
|
||||
size_t strlen(const char *str)
|
||||
{
|
||||
const char *start = str;
|
||||
|
||||
#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
|
||||
while (*str++)
|
||||
;
|
||||
return str - start - 1;
|
||||
#else
|
||||
if (__builtin_expect ((uintptr_t)str & (sizeof (long) - 1), 0)) do
|
||||
{
|
||||
char ch = *str;
|
||||
str++;
|
||||
if (!ch)
|
||||
return str - start - 1;
|
||||
} while ((uintptr_t)str & (sizeof (long) - 1));
|
||||
|
||||
unsigned long *ls = (unsigned long *)str;
|
||||
while (!__libc_detect_null (*ls++))
|
||||
;
|
||||
asm volatile ("" : "+r"(ls)); /* prevent "optimization" */
|
||||
|
||||
str = (const char *)ls;
|
||||
size_t ret = str - start, sl = sizeof (long);
|
||||
|
||||
char c0 = str[0 - sl], c1 = str[1 - sl], c2 = str[2 - sl], c3 = str[3 - sl];
|
||||
if (c0 == 0) return ret + 0 - sl;
|
||||
if (c1 == 0) return ret + 1 - sl;
|
||||
if (c2 == 0) return ret + 2 - sl;
|
||||
if (sl == 4 || c3 == 0) return ret + 3 - sl;
|
||||
|
||||
c0 = str[4 - sl], c1 = str[5 - sl], c2 = str[6 - sl], c3 = str[7 - sl];
|
||||
if (c0 == 0) return ret + 4 - sl;
|
||||
if (c1 == 0) return ret + 5 - sl;
|
||||
if (c2 == 0) return ret + 6 - sl;
|
||||
|
||||
return ret + 7 - sl;
|
||||
#endif /* not PREFER_SIZE_OVER_SPEED */
|
||||
}
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#ifndef _SYS_ASM_H
|
||||
#define _SYS_ASM_H
|
||||
|
||||
/*
|
||||
* Macros to handle different pointer/register sizes for 32/64-bit code
|
||||
*/
|
||||
#if __riscv_xlen == 64
|
||||
# define PTRLOG 3
|
||||
# define SZREG 8
|
||||
# define REG_S sd
|
||||
# define REG_L ld
|
||||
#elif __riscv_xlen == 32
|
||||
# define PTRLOG 2
|
||||
# define SZREG 4
|
||||
# define REG_S sw
|
||||
# define REG_L lw
|
||||
#else
|
||||
# error __riscv_xlen must equal 32 or 64
|
||||
#endif
|
||||
|
||||
#ifndef __riscv_float_abi_soft
|
||||
/* For ABI uniformity, reserve 8 bytes for floats, even if double-precision
|
||||
floating-point is not supported in hardware. */
|
||||
# define SZFREG 8
|
||||
# ifdef __riscv_float_abi_single
|
||||
# define FREG_L flw
|
||||
# define FREG_S fsw
|
||||
# elif defined(__riscv_float_abi_double)
|
||||
# define FREG_L fld
|
||||
# define FREG_S fsd
|
||||
# elif defined(__riscv_float_abi_quad)
|
||||
# define FREG_L flq
|
||||
# define FREG_S fsq
|
||||
# else
|
||||
# error unsupported FLEN
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#endif /* sys/asm.h */
|
||||
|
|
@ -0,0 +1,77 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#ifndef _FENV_H_
|
||||
#define _FENV_H_
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
/* Per "The RISC-V Instruction Set Manual: Volume I: User-Level ISA:
|
||||
* Version 2.1", Section 8.2, "Floating-Point Control and Status
|
||||
* Register":
|
||||
*
|
||||
* Flag Mnemonic Flag Meaning
|
||||
* ------------- -----------------
|
||||
* NV Invalid Operation
|
||||
* DZ Divide by Zero
|
||||
* OF Overflow
|
||||
* UF Underflow
|
||||
* NX Inexact
|
||||
*/
|
||||
|
||||
#define FE_INVALID 0x00000010
|
||||
#define FE_DIVBYZERO 0x00000008
|
||||
#define FE_OVERFLOW 0x00000004
|
||||
#define FE_UNDERFLOW 0x00000002
|
||||
#define FE_INEXACT 0x00000001
|
||||
|
||||
#define FE_ALL_EXCEPT (FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW|FE_UNDERFLOW|FE_INEXACT)
|
||||
|
||||
/* Per "The RISC-V Instruction Set Manual: Volume I: User-Level ISA:
|
||||
* Version 2.1", Section 8.2, "Floating-Point Control and Status
|
||||
* Register":
|
||||
*
|
||||
* Rounding Mode Mnemonic Meaning Meaning
|
||||
* ------------- ---------------- -------
|
||||
* 000 RNE Round to Nearest, ties to Even
|
||||
* 001 RTZ Round towards Zero
|
||||
* 010 RDN Round Down (towards −∞)
|
||||
* 011 RUP Round Up (towards +∞)
|
||||
* 100 RMM Round to Nearest, ties to Max Magnitude
|
||||
* 101 Invalid. Reserved for future use.
|
||||
* 110 Invalid. Reserved for future use.
|
||||
* 111 In instruction’s rm field, selects dynamic rounding mode;
|
||||
* In Rounding Mode register, Invalid
|
||||
*/
|
||||
|
||||
#define FE_TONEAREST_MM 0x00000004
|
||||
#define FE_UPWARD 0x00000003
|
||||
#define FE_DOWNWARD 0x00000002
|
||||
#define FE_TOWARDZERO 0x00000001
|
||||
#define FE_TONEAREST 0x00000000
|
||||
|
||||
#define FE_RMODE_MASK 0x7
|
||||
|
||||
/* Per "The RISC-V Instruction Set Manual: Volume I: User-Level ISA:
|
||||
* Version 2.1":
|
||||
*
|
||||
* "The F extension adds 32 floating-point registers, f0–f31, each 32
|
||||
* bits wide, and a floating-point control and status register fcsr,
|
||||
* which contains the operating mode and exception status of the
|
||||
* floating-point unit."
|
||||
*/
|
||||
|
||||
typedef size_t fenv_t;
|
||||
typedef size_t fexcept_t;
|
||||
extern const fenv_t fe_dfl_env;
|
||||
#define FE_DFL_ENV fe_dfl_env_p
|
||||
|
||||
#endif /* _FENV_H_ */
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
/* Copyright (c) 2017 SiFive Inc. All rights reserved.
|
||||
|
||||
This copyrighted material is made available to anyone wishing to use,
|
||||
modify, copy, or redistribute it subject to the terms and conditions
|
||||
of the BSD License. This program is distributed in the hope that
|
||||
it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
|
||||
including the implied warranties of MERCHANTABILITY or FITNESS FOR
|
||||
A PARTICULAR PURPOSE. A copy of this license is available at
|
||||
http://www.opensource.org/licenses.
|
||||
*/
|
||||
|
||||
#ifndef _SYS_STRING_H
|
||||
#define _SYS_STRING_H
|
||||
|
||||
static __inline unsigned long __libc_detect_null(unsigned long w)
|
||||
{
|
||||
unsigned long mask = 0x7f7f7f7f;
|
||||
if (sizeof (long) == 8)
|
||||
mask = ((mask << 16) << 16) | mask;
|
||||
return ~(((w & mask) + mask) | w | mask);
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue