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-rw-r--r--Makefile2
-rw-r--r--Makefile.inc16
-rw-r--r--etc/etc.riscv/ttys51
-rw-r--r--lib/csu/riscv/Makefile46
-rw-r--r--lib/csu/riscv/crt1.c89
-rw-r--r--lib/csu/riscv/crti.S58
-rw-r--r--lib/csu/riscv/crtn.S48
-rw-r--r--lib/libc/riscv/Makefile.inc1
-rw-r--r--lib/libthr/arch/riscv/Makefile.inc1
-rw-r--r--lib/msun/riscv/Makefile.inc6
-rw-r--r--lib/msun/riscv/fenv.h228
-rw-r--r--share/mk/bsd.cpu.mk11
-rw-r--r--share/mk/bsd.endian.mk1
-rw-r--r--share/mk/bsd.sys.mk5
-rw-r--r--share/mk/local.meta.sys.mk3
-rw-r--r--share/mk/src.opts.mk7
-rw-r--r--share/mk/sys.mk2
17 files changed, 560 insertions, 5 deletions
diff --git a/Makefile b/Makefile
index d4d5aa2..0093fb3 100644
--- a/Makefile
+++ b/Makefile
@@ -180,7 +180,7 @@ _MAKE= PATH=${PATH} ${SUB_MAKE} -f Makefile.inc1 TARGET=${_TARGET} TARGET_ARCH=$
_TARGET_ARCH= ${TARGET:S/pc98/i386/:S/arm64/aarch64/}
.elif !defined(TARGET) && defined(TARGET_ARCH) && \
${TARGET_ARCH} != ${MACHINE_ARCH}
-_TARGET= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/aarch64/arm64/:C/powerpc64/powerpc/}
+_TARGET= ${TARGET_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/aarch64/arm64/:C/powerpc64/powerpc/:C/riscv64/riscv/}
.endif
.if defined(TARGET) && !defined(_TARGET)
_TARGET=${TARGET}
diff --git a/Makefile.inc1 b/Makefile.inc1
index 645167b..11fc0b9 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -172,7 +172,11 @@ VERSION= FreeBSD ${REVISION}-${BRANCH:C/-p[0-9]+$//} ${TARGET_ARCH} ${SRCRELDATE
.export VERSION
.endif
-KNOWN_ARCHES?= aarch64/arm64 amd64 arm armeb/arm armv6/arm armv6hf/arm i386 i386/pc98 mips mipsel/mips mips64el/mips mips64/mips mipsn32el/mips mipsn32/mips powerpc powerpc64/powerpc sparc64
+KNOWN_ARCHES?= aarch64/arm64 amd64 arm armeb/arm armv6/arm armv6hf/arm \
+ i386 i386/pc98 mips mipsel/mips mips64el/mips mips64/mips \
+ mipsn32el/mips mipsn32/mips powerpc powerpc64/powerpc \
+ riscv64/riscv sparc64
+
.if ${TARGET} == ${TARGET_ARCH}
_t= ${TARGET}
.else
diff --git a/etc/etc.riscv/ttys b/etc/etc.riscv/ttys
new file mode 100644
index 0000000..ede1d79
--- /dev/null
+++ b/etc/etc.riscv/ttys
@@ -0,0 +1,51 @@
+#
+# $FreeBSD$
+# @(#)ttys 5.1 (Berkeley) 4/17/89
+#
+# This file specifies various information about terminals on the system.
+# It is used by several different programs. Common entries for the
+# various columns include:
+#
+# name The name of the terminal device.
+#
+# getty The program to start running on the terminal. Typically a
+# getty program, as the name implies. Other common entries
+# include none, when no getty is needed, and xdm, to start the
+# X Window System.
+#
+# type The initial terminal type for this port. For hardwired
+# terminal lines, this will contain the type of terminal used.
+# For virtual consoles, the correct type is typically xterm.
+# Other common values include dialup for incoming modem ports, and
+# unknown when the terminal type cannot be predetermined.
+#
+# status Must be on or off. If on, init will run the getty program on
+# the specified port. If the word "secure" appears, this tty
+# allows root login.
+#
+# name getty type status comments
+#
+# If console is marked "insecure", then init will ask for the root password
+# when going to single-user mode.
+console none unknown off secure
+#
+ttyv0 "/usr/libexec/getty Pc" xterm onifconsole secure
+# Virtual terminals
+ttyv1 "/usr/libexec/getty Pc" xterm off secure
+ttyv2 "/usr/libexec/getty Pc" xterm off secure
+ttyv3 "/usr/libexec/getty Pc" xterm off secure
+ttyv4 "/usr/libexec/getty Pc" xterm off secure
+ttyv5 "/usr/libexec/getty Pc" xterm off secure
+ttyv6 "/usr/libexec/getty Pc" xterm off secure
+ttyv7 "/usr/libexec/getty Pc" xterm off secure
+#ttyv8 "/usr/local/bin/xdm -nodaemon" xterm off secure
+# Serial terminals
+# The 'dialup' keyword identifies dialin lines to login, fingerd etc.
+ttyu0 "/usr/libexec/getty 3wire" vt100 onifconsole secure
+ttyu1 "/usr/libexec/getty 3wire" vt100 onifconsole secure
+ttyu2 "/usr/libexec/getty 3wire" vt100 onifconsole secure
+ttyu3 "/usr/libexec/getty 3wire" vt100 onifconsole secure
+# Dumb console
+dcons "/usr/libexec/getty std.9600" vt100 off secure
+# RISC-V HTIF console
+rcons "/usr/libexec/getty std.9600" vt100 onifconsole secure
diff --git a/lib/csu/riscv/Makefile b/lib/csu/riscv/Makefile
new file mode 100644
index 0000000..9747619
--- /dev/null
+++ b/lib/csu/riscv/Makefile
@@ -0,0 +1,46 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../common
+
+SRCS= crt1.c crti.S crtn.S
+OBJS= ${SRCS:N*.h:R:S/$/.o/g}
+OBJS+= Scrt1.o gcrt1.o
+CFLAGS+= -I${.CURDIR}/../common \
+ -I${.CURDIR}/../../libc/include
+
+FILES= ${OBJS}
+FILESMODE= ${LIBMODE}
+FILESOWN= ${LIBOWN}
+FILESGRP= ${LIBGRP}
+FILESDIR= ${LIBDIR}
+# These FILES qualify as libraries for the purpose of LIBRARIES_ONLY.
+.undef LIBRARIES_ONLY
+
+CLEANFILES= ${OBJS}
+CLEANFILES+= crt1.s gcrt1.s Scrt1.s
+
+# See the comment in lib/csu/common/crtbrand.c for the reason crt1.c is not
+# directly compiled to .o files.
+
+crt1.s: crt1.c
+ ${CC} ${CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+crt1.o: crt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} crt1.s
+
+gcrt1.s: crt1.c
+ ${CC} ${CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+gcrt1.o: gcrt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} gcrt1.s
+
+Scrt1.s: crt1.c
+ ${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
+ sed ${SED_FIX_NOTE} ${.TARGET}
+
+Scrt1.o: Scrt1.s
+ ${CC} ${ACFLAGS} -c -o ${.TARGET} Scrt1.s
+
+.include <bsd.lib.mk>
diff --git a/lib/csu/riscv/crt1.c b/lib/csu/riscv/crt1.c
new file mode 100644
index 0000000..0c3fbe6
--- /dev/null
+++ b/lib/csu/riscv/crt1.c
@@ -0,0 +1,89 @@
+/* LINTLIBRARY */
+/*-
+ * Copyright 1996-1998 John D. Polstra.
+ * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Portions of this software were developed by SRI International and the
+ * University of Cambridge Computer Laboratory under DARPA/AFRL contract
+ * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Portions of this software were developed by the University of Cambridge
+ * Computer Laboratory as part of the CTSRD Project, with support from the
+ * UK Higher Education Innovation Fund (HEIF).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdlib.h>
+
+#include "libc_private.h"
+#include "crtbrand.c"
+#include "ignore_init.c"
+
+typedef void (*fptr)(void);
+
+#ifdef GCRT
+extern void _mcleanup(void);
+extern void monstartup(void *, void *);
+extern int eprol;
+extern int etext;
+#endif
+
+void __start(int argc, char **argv, char **env, void (*cleanup)(void));
+
+/* The entry function. */
+__asm(" .text \n"
+" .align 0 \n"
+" .globl _start \n"
+" _start: \n"
+" mv a3, a2 \n" /* cleanup */
+" addi a1, a0, 8 \n" /* get argv */
+" ld a0, 0(a0) \n" /* load argc */
+" slli t0, a0, 3 \n" /* mult by arg size */
+" add a2, a1, t0 \n" /* env is after argv */
+" addi a2, a2, 8 \n" /* argv is null terminated */
+" lla gp, _gp \n" /* load global pointer */
+" call __start");
+
+void
+__start(int argc, char **argv, char **env, void (*cleanup)(void))
+{
+
+ handle_argv(argc, argv, env);
+
+ if (&_DYNAMIC != NULL)
+ atexit(cleanup);
+ else
+ _init_tls();
+
+#ifdef GCRT
+ atexit(_mcleanup);
+ monstartup(&eprol, &etext);
+__asm__("eprol:");
+#endif
+
+ handle_static_init(argc, argv, env);
+ exit(main(argc, argv, env));
+}
diff --git a/lib/csu/riscv/crti.S b/lib/csu/riscv/crti.S
new file mode 100644
index 0000000..df6027e
--- /dev/null
+++ b/lib/csu/riscv/crti.S
@@ -0,0 +1,58 @@
+/*-
+ * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Portions of this software were developed by SRI International and the
+ * University of Cambridge Computer Laboratory under DARPA/AFRL contract
+ * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Portions of this software were developed by the University of Cambridge
+ * Computer Laboratory as part of the CTSRD Project, with support from the
+ * UK Higher Education Innovation Fund (HEIF).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+# this puts _gp into .dynsym, so symlook_obj can now find that (see reloc.c)
+ .weak _gp
+_gp:
+
+ .section .init,"ax",@progbits
+ .align 2
+ .globl _init
+ .type _init,@function
+_init:
+ addi sp, sp, -16
+ sd ra, 0(sp)
+
+ .section .fini,"ax",@progbits
+ .align 2
+ .globl _fini
+ .type _fini,@function
+_fini:
+ addi sp, sp, -16
+ sd ra, 0(sp)
+
+ .section .note.GNU-stack,"",%progbits
diff --git a/lib/csu/riscv/crtn.S b/lib/csu/riscv/crtn.S
new file mode 100644
index 0000000..b582471
--- /dev/null
+++ b/lib/csu/riscv/crtn.S
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Portions of this software were developed by SRI International and the
+ * University of Cambridge Computer Laboratory under DARPA/AFRL contract
+ * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Portions of this software were developed by the University of Cambridge
+ * Computer Laboratory as part of the CTSRD Project, with support from the
+ * UK Higher Education Innovation Fund (HEIF).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+ .section .init,"ax",@progbits
+ ld ra, 0(sp)
+ addi sp, sp, 16
+ ret
+
+ .section .fini,"ax",@progbits
+ ld ra, 0(sp)
+ addi sp, sp, 16
+ ret
+
+ .section .note.GNU-stack,"",%progbits
diff --git a/lib/libc/riscv/Makefile.inc b/lib/libc/riscv/Makefile.inc
new file mode 100644
index 0000000..e8c0da7
--- /dev/null
+++ b/lib/libc/riscv/Makefile.inc
@@ -0,0 +1 @@
+# $FreeBSD$
diff --git a/lib/libthr/arch/riscv/Makefile.inc b/lib/libthr/arch/riscv/Makefile.inc
new file mode 100644
index 0000000..e8c0da7
--- /dev/null
+++ b/lib/libthr/arch/riscv/Makefile.inc
@@ -0,0 +1 @@
+# $FreeBSD$
diff --git a/lib/msun/riscv/Makefile.inc b/lib/msun/riscv/Makefile.inc
new file mode 100644
index 0000000..0ce69db
--- /dev/null
+++ b/lib/msun/riscv/Makefile.inc
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+# RISCVTODO: should be 113
+# compilation problems: gcc generates bltuz instruction, which is not exists
+
+LDBL_PREC = 53
diff --git a/lib/msun/riscv/fenv.h b/lib/msun/riscv/fenv.h
new file mode 100644
index 0000000..3eae6c2
--- /dev/null
+++ b/lib/msun/riscv/fenv.h
@@ -0,0 +1,228 @@
+/*-
+ * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
+ * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
+ * All rights reserved.
+ *
+ * Portions of this software were developed by SRI International and the
+ * University of Cambridge Computer Laboratory under DARPA/AFRL contract
+ * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Portions of this software were developed by the University of Cambridge
+ * Computer Laboratory as part of the CTSRD Project, with support from the
+ * UK Higher Education Innovation Fund (HEIF).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _FENV_H_
+#define _FENV_H_
+
+#include <sys/_types.h>
+
+#ifndef __fenv_static
+#define __fenv_static static
+#endif
+
+typedef __uint64_t fenv_t;
+typedef __uint64_t fexcept_t;
+
+/* Exception flags */
+#define FE_INVALID 0x0010
+#define FE_DIVBYZERO 0x0008
+#define FE_OVERFLOW 0x0004
+#define FE_UNDERFLOW 0x0002
+#define FE_INEXACT 0x0001
+#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
+ FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
+
+/*
+ * RISC-V Rounding modes
+ */
+#define FE_TONEAREST (0x00 << 5)
+#define FE_TOWARDZERO (0x01 << 5)
+#define FE_DOWNWARD (0x02 << 5)
+#define FE_UPWARD (0x03 << 5)
+#define _ROUND_SHIFT 5
+#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
+ FE_UPWARD | FE_TOWARDZERO)
+
+__BEGIN_DECLS
+
+/* Default floating-point environment */
+extern const fenv_t __fe_dfl_env;
+#define FE_DFL_ENV (&__fe_dfl_env)
+
+/* We need to be able to map status flag positions to mask flag positions */
+#define _FPUSW_SHIFT 0
+#define _ENABLE_MASK (FE_ALL_EXCEPT << _FPUSW_SHIFT)
+
+#define __rfs(__fpsr) __asm __volatile("csrr %0, fcsr" : "=r" (*(__fpsr)))
+#define __wfs(__fpsr) __asm __volatile("csrw fcsr, %0" :: "r" (__fpsr))
+
+__fenv_static inline int
+feclearexcept(int __excepts)
+{
+ fexcept_t __fpsr;
+
+ __rfs(&__fpsr);
+ __fpsr &= ~__excepts;
+ __wfs(__fpsr);
+ return (0);
+}
+
+__fenv_static inline int
+fegetexceptflag(fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fpsr;
+
+ __rfs(&__fpsr);
+ *__flagp = __fpsr & __excepts;
+ return (0);
+}
+
+__fenv_static inline int
+fesetexceptflag(const fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fpsr;
+
+ __rfs(&__fpsr);
+ __fpsr &= ~__excepts;
+ __fpsr |= *__flagp & __excepts;
+ __wfs(__fpsr);
+ return (0);
+}
+
+__fenv_static inline int
+feraiseexcept(int __excepts)
+{
+ fexcept_t __ex = __excepts;
+
+ fesetexceptflag(&__ex, __excepts); /* XXX */
+ return (0);
+}
+
+__fenv_static inline int
+fetestexcept(int __excepts)
+{
+ fexcept_t __fpsr;
+
+ __rfs(&__fpsr);
+ return (__fpsr & __excepts);
+}
+
+__fenv_static inline int
+fegetround(void)
+{
+
+ return (-1);
+}
+
+__fenv_static inline int
+fesetround(int __round)
+{
+
+ return (-1);
+}
+
+__fenv_static inline int
+fegetenv(fenv_t *__envp)
+{
+
+ __rfs(__envp);
+ return (0);
+}
+
+__fenv_static inline int
+feholdexcept(fenv_t *__envp)
+{
+ fenv_t __env;
+
+ __rfs(&__env);
+ *__envp = __env;
+ __env &= ~(FE_ALL_EXCEPT | _ENABLE_MASK);
+ __wfs(__env);
+ return (0);
+}
+
+__fenv_static inline int
+fesetenv(const fenv_t *__envp)
+{
+
+ __wfs(*__envp);
+ return (0);
+}
+
+__fenv_static inline int
+feupdateenv(const fenv_t *__envp)
+{
+ fexcept_t __fpsr;
+
+ __rfs(&__fpsr);
+ __wfs(*__envp);
+ feraiseexcept(__fpsr & FE_ALL_EXCEPT);
+ return (0);
+}
+
+#if __BSD_VISIBLE
+
+/* We currently provide no external definitions of the functions below. */
+
+static inline int
+feenableexcept(int __mask)
+{
+ fenv_t __old_fpsr;
+ fenv_t __new_fpsr;
+
+ __rfs(&__old_fpsr);
+ __new_fpsr = __old_fpsr | (__mask & FE_ALL_EXCEPT) << _FPUSW_SHIFT;
+ __wfs(__new_fpsr);
+ return ((__old_fpsr >> _FPUSW_SHIFT) & FE_ALL_EXCEPT);
+}
+
+static inline int
+fedisableexcept(int __mask)
+{
+ fenv_t __old_fpsr;
+ fenv_t __new_fpsr;
+
+ __rfs(&__old_fpsr);
+ __new_fpsr = __old_fpsr & ~((__mask & FE_ALL_EXCEPT) << _FPUSW_SHIFT);
+ __wfs(__new_fpsr);
+ return ((__old_fpsr >> _FPUSW_SHIFT) & FE_ALL_EXCEPT);
+}
+
+static inline int
+fegetexcept(void)
+{
+ fenv_t __fpsr;
+
+ __rfs(&__fpsr);
+ return ((__fpsr & _ENABLE_MASK) >> _FPUSW_SHIFT);
+}
+
+#endif /* __BSD_VISIBLE */
+
+__END_DECLS
+
+#endif /* !_FENV_H_ */
diff --git a/share/mk/bsd.cpu.mk b/share/mk/bsd.cpu.mk
index 1ab7595..d54a354 100644
--- a/share/mk/bsd.cpu.mk
+++ b/share/mk/bsd.cpu.mk
@@ -18,6 +18,8 @@ MACHINE_CPU = i486
MACHINE_CPU = mips
. elif ${MACHINE_CPUARCH} == "powerpc"
MACHINE_CPU = aim
+. elif ${MACHINE_CPUARCH} == "riscv"
+MACHINE_CPU = riscv
. elif ${MACHINE_CPUARCH} == "sparc64"
MACHINE_CPU = ultrasparc
. endif
@@ -148,6 +150,8 @@ _CPUCFLAGS = -march=${CPUTYPE}
# sb1, xlp, xlr
_CPUCFLAGS = -march=${CPUTYPE:S/^mips//}
. endif
+. elif ${MACHINE_CPUARCH} == "riscv"
+_CPUCFLAGS = -msoft-float # -march="RV64I" # RISCVTODO
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "v9"
_CPUCFLAGS = -mcpu=v9
@@ -277,6 +281,9 @@ MACHINE_CPU = mips
. if ${CPUTYPE} == "e500"
MACHINE_CPU = booke softfp
. endif
+########## riscv
+. elif ${MACHINE_CPUARCH} == "riscv"
+MACHINE_CPU = riscv
########## sparc64
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "v9"
@@ -313,6 +320,10 @@ CFLAGS += -mfloat-abi=softfp
.endif
.endif
+.if ${MACHINE_CPUARCH} == "riscv"
+CFLAGS += -msoft-float
+.endif
+
# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
.if !defined(NO_CPU_CFLAGS)
diff --git a/share/mk/bsd.endian.mk b/share/mk/bsd.endian.mk
index 2d1a53e..c7ec42c 100644
--- a/share/mk/bsd.endian.mk
+++ b/share/mk/bsd.endian.mk
@@ -4,6 +4,7 @@
${MACHINE_ARCH} == "amd64" || \
${MACHINE_ARCH} == "i386" || \
(${MACHINE} == "arm" && ${MACHINE_ARCH:Marm*eb*} == "") || \
+ ${MACHINE_CPUARCH} == "riscv" || \
${MACHINE_ARCH:Mmips*el} != ""
TARGET_ENDIANNESS= 1234
.elif ${MACHINE_ARCH} == "powerpc" || \
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index 6eae174..de62195 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -109,6 +109,11 @@ CWARNFLAGS+= -Werror
CWARNFLAGS+= -Wno-format
.endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE}
+# GCC 5.2.0
+.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50200
+CWARNFLAGS+= -Wno-error=unused-function -Wno-error=enum-compare -Wno-error=logical-not-parentheses -Wno-error=bool-compare -Wno-error=uninitialized -Wno-error=array-bounds -Wno-error=clobbered -Wno-error=cast-align -Wno-error=extra -Wno-error=attributes -Wno-error=inline -Wno-error=unused-but-set-variable -Wno-error=unused-value -Wno-error=strict-aliasing -Wno-error=address
+.endif
+
# How to handle FreeBSD custom printf format specifiers.
.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
FORMAT_EXTENSIONS= -D__printf__=__freebsd_kprintf__
diff --git a/share/mk/local.meta.sys.mk b/share/mk/local.meta.sys.mk
index a97f6f2..1aa749a 100644
--- a/share/mk/local.meta.sys.mk
+++ b/share/mk/local.meta.sys.mk
@@ -48,13 +48,14 @@ TARGET_ARCHES_arm64?= aarch64
TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32 mipsn32el
TARGET_ARCHES_powerpc?= powerpc powerpc64
TARGET_ARCHES_pc98?= i386
+TARGET_ARCHES_riscv?= riscv64
# some corner cases
BOOT_MACHINE_DIR.amd64 = boot/i386
MACHINE_ARCH.host = ${_HOST_ARCH}
# the list of machines we support
-ALL_MACHINE_LIST?= amd64 arm arm64 i386 mips pc98 powerpc sparc64
+ALL_MACHINE_LIST?= amd64 arm arm64 i386 mips pc98 powerpc riscv sparc64
.for m in ${ALL_MACHINE_LIST:O:u}
MACHINE_ARCH_LIST.$m?= ${TARGET_ARCHES_${m}:U$m}
MACHINE_ARCH.$m?= ${MACHINE_ARCH_LIST.$m:[1]}
diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk
index 094019d..f94e63a 100644
--- a/share/mk/src.opts.mk
+++ b/share/mk/src.opts.mk
@@ -229,12 +229,17 @@ __DEFAULT_YES_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX
__DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_FULL CLANG_IS_CC
.endif
# In-tree binutils/gcc are older versions without modern architecture support.
-.if ${__T} == "aarch64"
+.if ${__T} == "aarch64" || ${__T} == "riscv64"
BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GCC GCC_BOOTSTRAP GDB
__DEFAULT_YES_OPTIONS+=ELFCOPY_AS_OBJCOPY
.else
__DEFAULT_NO_OPTIONS+=ELFCOPY_AS_OBJCOPY
.endif
+.if ${__T} == "riscv64"
+BROKEN_OPTIONS+=PROFILE # "sorry, unimplemented: profiler support for RISC-V"
+BROKEN_OPTIONS+=TESTS # "undefined reference to `_Unwind_Resume'"
+BROKEN_OPTIONS+=CXX # "libcxxrt.so: undefined reference to `_Unwind_Resume_or_Rethrow'"
+.endif
# LLVM lacks support for FreeBSD 64-bit atomic operations for ARMv4/ARMv5
.if ${__T} == "arm" || ${__T} == "armeb"
BROKEN_OPTIONS+=LLDB
diff --git a/share/mk/sys.mk b/share/mk/sys.mk
index f9ac418..8fe6b68 100644
--- a/share/mk/sys.mk
+++ b/share/mk/sys.mk
@@ -13,7 +13,7 @@ unix ?= We run FreeBSD, not UNIX.
# and/or endian. This is called MACHINE_CPU in NetBSD, but that's used
# for something different in FreeBSD.
#
-MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/}
+MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/:C/riscv64/riscv/}
.endif
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