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Bring in initial libc and libstand support for RISC-V.

Browse Source 
Reviewed by:	andrew, emaste, kib
Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
Differential Revision:	https://reviews.freebsd.org/D4943
This commit is contained in:
Ruslan Bukin 2016-01-17 15:21:23 +00:00
parent ce958bdefe
commit 0bfee92849
29 changed files with 1401 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/libc/Makefile
View File

@ -83,6 +83,7 @@ NOASM=
.if ${LIBC_ARCH} != "aarch64" && \
${LIBC_ARCH} != "amd64" && \
${LIBC_ARCH} != "powerpc64" && \
${LIBC_ARCH} != "riscv" && \
${LIBC_ARCH} != "sparc64" && \
${MACHINE_ARCH:Mmipsn32*} == "" && \
${MACHINE_ARCH:Mmips64*} == ""
@ -101,7 +102,7 @@ NOASM=
.include "${LIBC_SRCTOP}/uuid/Makefile.inc"
.include "${LIBC_SRCTOP}/xdr/Makefile.inc"
.if (${LIBC_ARCH} == "arm" && ${MACHINE_ARCH} != "armv6hf") ||\
${LIBC_ARCH} == "mips"
${LIBC_ARCH} == "mips" && ${LIBC_ARCH} == "riscv"
.include "${LIBC_SRCTOP}/softfloat/Makefile.inc"
.endif
.if ${MK_NIS} != "no"

9
lib/libc/gen/tls.c
View File

@ -64,15 +64,16 @@ void __libc_free_tls(void *tls, size_t tcbsize, size_t tcbalign);
#if defined(__amd64__)
#define TLS_TCB_ALIGN 16
#elif defined(__powerpc__) || defined(__i386__) || defined(__arm__) || \
defined(__sparc64__) || defined(__mips__) || defined(__aarch64__)
#elif defined(__aarch64__) || defined(__arm__) || defined(__i386__) || \
defined(__mips__) || defined(__powerpc__) || defined(__riscv__) || \
defined(__sparc64__)
#define TLS_TCB_ALIGN sizeof(void *)
#else
#error TLS_TCB_ALIGN undefined for target architecture
#endif
#if defined(__arm__) || defined(__mips__) || defined(__powerpc__) || \
defined(__aarch64__)
#if defined(__aarch64__) || defined(__arm__) || defined(__mips__) || \
defined(__powerpc__) || defined(__riscv__)
#define TLS_VARIANT_I
#endif
#if defined(__i386__) || defined(__amd64__) || defined(__sparc64__)

8
lib/libc/riscv/Makefile.inc
View File

@ -1 +1,9 @@
# $FreeBSD$
#
# Machine dependent definitions for the RISC-V architecture.
#
# Long double is quad precision
GDTOASRCS+=strtorQ.c
MDSRCS+=machdep_ldisQ.c
SYM_MAPS+=${LIBC_SRCTOP}/riscv/Symbol.map

68
lib/libc/riscv/SYS.h Normal file
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@ -0,0 +1,68 @@
/*-
* Copyright (c) 2014 Andrew Turner
* 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.
*
* $FreeBSD$
*/
#include <sys/syscall.h>
#include <machine/asm.h>
#define _SYSCALL(name) \
li t0, SYS_ ## name; \
ecall
#define SYSCALL(name) \
ENTRY(__sys_##name); \
WEAK_REFERENCE(__sys_##name, name); \
WEAK_REFERENCE(__sys_##name, _##name); \
_SYSCALL(name); \
ret; \
END(__sys_##name)
#define PSEUDO(name) \
ENTRY(__sys_##name); \
WEAK_REFERENCE(__sys_##name, _##name); \
_SYSCALL(name); \
bnez t0, cerror; \
ret; \
END(__sys_##name)
#define RSYSCALL(name) \
ENTRY(__sys_##name); \
WEAK_REFERENCE(__sys_##name, name); \
WEAK_REFERENCE(__sys_##name, _##name); \
_SYSCALL(name); \
bnez t0, cerror; \
ret; \
END(__sys_##name)

42
lib/libc/riscv/Symbol.map Normal file
View File

@ -0,0 +1,42 @@
/*
* $FreeBSD$
*/
/*
* This only needs to contain symbols that are not listed in
* symbol maps from other parts of libc (i.e., not found in
* stdlib/Symbol.map, string/Symbol.map, sys/Symbol.map, ...).
*/
FBSD_1.0 {
/* PSEUDO syscalls */
_exit;
_setjmp;
_longjmp;
fabs;
__flt_rounds;
fpgetmask;
fpsetmask;
__infinity;
__nan;
setjmp;
longjmp;
sigsetjmp;
siglongjmp;
htonl;
htons;
ntohl;
ntohs;
vfork;
brk;
sbrk;
makecontext;
};
FBSDprivate_1.0 {
_set_tp;
_end;
curbrk;
minbrk;
__makecontext;
};

71
lib/libc/riscv/_fpmath.h Normal file
View File

@ -0,0 +1,71 @@
/*-
* Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
* Copyright (c) 2014 The FreeBSD Foundation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
union IEEEl2bits {
long double e;
struct {
unsigned long manl :64;
unsigned long manh :48;
unsigned int exp :15;
unsigned int sign :1;
} bits;
struct {
unsigned long manl :64;
unsigned long manh :48;
unsigned int expsign :16;
} xbits;
};
#define LDBL_NBIT 0
#define LDBL_IMPLICIT_NBIT
#define mask_nbit_l(u) ((void)0)
#define LDBL_MANH_SIZE 20
#define LDBL_MANL_SIZE 32
#define LDBL_TO_ARRAY32(u, a) do { \
(a)[0] = (uint32_t)(u).bits.manl; \
(a)[1] = (uint32_t)(u).bits.manh; \
} while(0)
/*
* TODO: Due to compiler problem we are temporary using
* LDBL_PREC == 53. Use code below for LDBL_PREC == 113
*/
#if 0
#define LDBL_MANH_SIZE 48
#define LDBL_MANL_SIZE 64
#define LDBL_TO_ARRAY32(u, a) do { \
(a)[0] = (uint32_t)(u).bits.manl; \
(a)[1] = (uint32_t)((u).bits.manl >> 32); \
(a)[2] = (uint32_t)(u).bits.manh; \
(a)[3] = (uint32_t)((u).bits.manh >> 32); \
} while(0)
#endif

19
lib/libc/riscv/arith.h Normal file
View File

@ -0,0 +1,19 @@
/*
* MD header for contrib/gdtoa
*
* $FreeBSD$
*/
/*
* NOTE: The definitions in this file must be correct or strtod(3) and
* floating point formats in printf(3) will break! The file can be
* generated by running contrib/gdtoa/arithchk.c on the target
* architecture. See contrib/gdtoa/gdtoaimp.h for details.
*/
#define IEEE_8087
#define Arith_Kind_ASL 1
#define Long int
#define Intcast (int)(long)
#define Double_Align
#define X64_bit_pointers

21
lib/libc/riscv/gd_qnan.h Normal file
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@ -0,0 +1,21 @@
/*
* MD header for contrib/gdtoa
*
* This file can be generated by compiling and running contrib/gdtoa/qnan.c
* on the target architecture after arith.h has been generated.
*
* $FreeBSD$
*/
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x0
#define d_QNAN1 0x7ff80000
#define ld_QNAN0 0x0
#define ld_QNAN1 0x7ff80000
#define ld_QNAN2 0x0
#define ld_QNAN3 0x0
#define ldus_QNAN0 0x0
#define ldus_QNAN1 0x0
#define ldus_QNAN2 0x0
#define ldus_QNAN3 0x7ff8
#define ldus_QNAN4 0x0

13
lib/libc/riscv/gen/Makefile.inc Normal file
View File

@ -0,0 +1,13 @@
# $FreeBSD$
SRCS+= _ctx_start.S \
fabs.S \
flt_rounds.c \
infinity.c \
ldexp.c \
makecontext.c \
_setjmp.S \
_set_tp.c \
setjmp.S \
sigsetjmp.S \
trivial-getcontextx.c

43
lib/libc/riscv/gen/_ctx_start.S Normal file
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@ -0,0 +1,43 @@
/*-
* 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("$FreeBSD$");
ENTRY(_ctx_start)
jalr s0 /* Call func from makecontext */
mv a0, s1 /* Load ucp saved in makecontext */
call _C_LABEL(ctx_done)
call _C_LABEL(abort)
END(_ctx_start)

50
lib/libc/riscv/gen/_set_tp.c Normal file
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@ -0,0 +1,50 @@
/*-
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <string.h>
#include <sys/types.h>
#include <machine/sysarch.h>
#include <stdlib.h>
void
_set_tp(void *tp)
{
__asm __volatile("mv tp, %0" :: "r"((char*)tp + 0x10));
}

151
lib/libc/riscv/gen/_setjmp.S Normal file
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@ -0,0 +1,151 @@
/*-
* 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("$FreeBSD$");
#include <machine/setjmp.h>
ENTRY(_setjmp)
/* Store the magic value and stack pointer */
la t0, .Lmagic
ld t0, 0(t0)
sd t0, (0 * 8)(a0)
sd sp, (1 * 8)(a0)
addi a0, a0, (2 * 8)
/* Store the general purpose registers and ra */
sd s0, (0 * 8)(a0)
sd s1, (1 * 8)(a0)
sd s2, (2 * 8)(a0)
sd s3, (3 * 8)(a0)
sd s4, (4 * 8)(a0)
sd s5, (5 * 8)(a0)
sd s6, (6 * 8)(a0)
sd s7, (7 * 8)(a0)
sd s8, (8 * 8)(a0)
sd s9, (9 * 8)(a0)
sd s10, (10 * 8)(a0)
sd s11, (11 * 8)(a0)
sd ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#ifndef _STANDALONE
#if 0
/* RISCVTODO */
/* Store the vfp registers */
fsq fs0, (0 * 16)(a0)
fsq fs1, (1 * 16)(a0)
fsq fs2, (2 * 16)(a0)
fsq fs3, (3 * 16)(a0)
fsq fs4, (4 * 16)(a0)
fsq fs5, (5 * 16)(a0)
fsq fs6, (6 * 16)(a0)
fsq fs7, (7 * 16)(a0)
fsq fs8, (8 * 16)(a0)
fsq fs9, (9 * 16)(a0)
fsq fs10, (10 * 16)(a0)
fsq fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
#endif
#endif
/* Return value */
li a0, 0
ret
.align 3
.Lmagic:
.quad _JB_MAGIC__SETJMP
END(_setjmp)
ENTRY(_longjmp)
/* Check the magic value */
ld t0, 0(a0)
la t1, .Lmagic
ld t1, 0(t1)
bne t0, t1, botch
/* Restore the stack pointer */
ld t0, 8(a0)
mv sp, t0
addi a0, a0, (2 * 8)
/* Restore the general purpose registers and ra */
ld s0, (0 * 8)(a0)
ld s1, (1 * 8)(a0)
ld s2, (2 * 8)(a0)
ld s3, (3 * 8)(a0)
ld s4, (4 * 8)(a0)
ld s5, (5 * 8)(a0)
ld s6, (6 * 8)(a0)
ld s7, (7 * 8)(a0)
ld s8, (8 * 8)(a0)
ld s9, (9 * 8)(a0)
ld s10, (10 * 8)(a0)
ld s11, (11 * 8)(a0)
ld ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#ifndef _STANDALONE
#if 0
/* RISCVTODO */
/* Restore the vfp registers */
flq fs0, (0 * 16)(a0)
flq fs1, (1 * 16)(a0)
flq fs2, (2 * 16)(a0)
flq fs3, (3 * 16)(a0)
flq fs4, (4 * 16)(a0)
flq fs5, (5 * 16)(a0)
flq fs6, (6 * 16)(a0)
flq fs7, (7 * 16)(a0)
flq fs8, (8 * 16)(a0)
flq fs9, (9 * 16)(a0)
flq fs10, (10 * 16)(a0)
flq fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
#endif
#endif
/* Load the return value */
mv a0, a1
ret
botch:
#ifdef _STANDALONE
j botch
#else
call _C_LABEL(longjmperror)
call _C_LABEL(abort)
#endif
END(_longjmp)

41
lib/libc/riscv/gen/fabs.S Normal file
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@ -0,0 +1,41 @@
/*-
* 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("$FreeBSD$");
ENTRY(fabs)
fabs.d fa0, fa0
ret
END(fabs)

71
lib/libc/riscv/gen/flt_rounds.c Normal file
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@ -0,0 +1,71 @@
/*-
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <fenv.h>
#include <float.h>
int
__flt_rounds(void)
{
#if 0
uint64_t fcsr;
#endif
int mode;
#if 0
__asm __volatile("csrr %0, fcsr" : "=r" (fcsr));
mode = (fcsr & _ROUND_MASK);
#endif
/* RISCVTODO */
mode = FE_TOWARDZERO; /* softfloat rounding mode */
switch (mode) {
case FE_TOWARDZERO:
return (0);
case FE_TONEAREST:
return (1);
case FE_UPWARD:
return (2);
case FE_DOWNWARD:
return (3);
}
return (-1);
}

14
lib/libc/riscv/gen/infinity.c Normal file
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@ -0,0 +1,14 @@
/*
* infinity.c
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <math.h>
/* bytes for +Infinity on riscv */
const union __infinity_un __infinity = { { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f } };
/* bytes for NaN */
const union __nan_un __nan = { { 0, 0, 0xc0, 0xff } };

91
lib/libc/riscv/gen/makecontext.c Normal file
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@ -0,0 +1,91 @@
/*-
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <machine/riscvreg.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdlib.h>
#include <ucontext.h>
void _ctx_start(void);
void
ctx_done(ucontext_t *ucp)
{
if (ucp->uc_link == NULL) {
exit(0);
} else {
setcontext((const ucontext_t *)ucp->uc_link);
abort();
}
}
__weak_reference(__makecontext, makecontext);
void
__makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
{
struct gpregs *gp;
va_list ap;
int i;
/* A valid context is required. */
if (ucp == NULL)
return;
if ((argc < 0) || (argc > 8))
return;
gp = &ucp->uc_mcontext.mc_gpregs;
va_start(ap, argc);
/* Pass up to eight arguments in a0-7. */
for (i = 0; i < argc && i < 8; i++)
gp->gp_a[i] = va_arg(ap, uint64_t);
va_end(ap);
/* Set the stack */
gp->gp_sp = STACKALIGN(ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size);
/* Arrange for return via the trampoline code. */
gp->gp_sepc = (__register_t)_ctx_start;
gp->gp_s[0] = (__register_t)func;
gp->gp_s[1] = (__register_t)ucp;
}

173
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/*-
* 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("$FreeBSD$");
#include <machine/setjmp.h>
ENTRY(setjmp)
addi sp, sp, -(2 * 8)
sd a0, 0(sp)
sd ra, 8(sp)
/* Store the signal mask */
addi a2, a0, (_JB_SIGMASK * 8) /* oset */
li a1, 0 /* set */
li a0, 1 /* SIG_BLOCK */
jal sigprocmask
ld a0, 0(sp)
ld ra, 8(sp)
addi sp, sp, (2 * 8)
/* Store the magic value and stack pointer */
la t0, .Lmagic
ld t0, 0(t0)
sd t0, (0 * 8)(a0)
sd sp, (1 * 8)(a0)
addi a0, a0, (2 * 8)
/* Store the general purpose registers and ra */
sd s0, (0 * 8)(a0)
sd s1, (1 * 8)(a0)
sd s2, (2 * 8)(a0)
sd s3, (3 * 8)(a0)
sd s4, (4 * 8)(a0)
sd s5, (5 * 8)(a0)
sd s6, (6 * 8)(a0)
sd s7, (7 * 8)(a0)
sd s8, (8 * 8)(a0)
sd s9, (9 * 8)(a0)
sd s10, (10 * 8)(a0)
sd s11, (11 * 8)(a0)
sd ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#if 0
/* RISCVTODO */
/* Store the vfp registers */
fsq fs0, (0 * 16)(a0)
fsq fs1, (1 * 16)(a0)
fsq fs2, (2 * 16)(a0)
fsq fs3, (3 * 16)(a0)
fsq fs4, (4 * 16)(a0)
fsq fs5, (5 * 16)(a0)
fsq fs6, (6 * 16)(a0)
fsq fs7, (7 * 16)(a0)
fsq fs8, (8 * 16)(a0)
fsq fs9, (9 * 16)(a0)
fsq fs10, (10 * 16)(a0)
fsq fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
#endif
/* Return value */
li a0, 0
ret
.align 3
.Lmagic:
.quad _JB_MAGIC_SETJMP
END(setjmp)
ENTRY(longjmp)
addi sp, sp, -(4 * 8)
sd a0, (0 * 8)(sp)
sd ra, (1 * 8)(sp)
sd a1, (2 * 8)(sp)
/* Restore the signal mask */
li a2, 0 /* oset */
addi a1, a0, (_JB_SIGMASK * 8) /* set */
li a0, 3 /* SIG_BLOCK */
jal sigprocmask
ld a1, (2 * 8)(sp)
ld ra, (1 * 8)(sp)
ld a0, (0 * 8)(sp)
addi sp, sp, (4 * 8)
/* Check the magic value */
ld t0, 0(a0)
la t1, .Lmagic
ld t1, 0(t1)
bne t0, t1, botch
/* Restore the stack pointer */
ld t0, 8(a0)
mv sp, t0
addi a0, a0, (2 * 8)
/* Restore the general purpose registers and ra */
ld s0, (0 * 8)(a0)
ld s1, (1 * 8)(a0)
ld s2, (2 * 8)(a0)
ld s3, (3 * 8)(a0)
ld s4, (4 * 8)(a0)
ld s5, (5 * 8)(a0)
ld s6, (6 * 8)(a0)
ld s7, (7 * 8)(a0)
ld s8, (8 * 8)(a0)
ld s9, (9 * 8)(a0)
ld s10, (10 * 8)(a0)
ld s11, (11 * 8)(a0)
ld ra, (12 * 8)(a0)
addi a0, a0, (13 * 8)
#if 0
/* RISCVTODO */
/* Restore the vfp registers */
flq fs0, (0 * 16)(a0)
flq fs1, (1 * 16)(a0)
flq fs2, (2 * 16)(a0)
flq fs3, (3 * 16)(a0)
flq fs4, (4 * 16)(a0)
flq fs5, (5 * 16)(a0)
flq fs6, (6 * 16)(a0)
flq fs7, (7 * 16)(a0)
flq fs8, (8 * 16)(a0)
flq fs9, (9 * 16)(a0)
flq fs10, (10 * 16)(a0)
flq fs11, (11 * 16)(a0)
addi a0, a0, (12 * 16)
#endif
/* Load the return value */
mv a0, a1
ret
botch:
call _C_LABEL(longjmperror)
call _C_LABEL(abort)
END(longjmp)

57
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/*-
* 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("$FreeBSD$");
#include <machine/setjmp.h>
ENTRY(sigsetjmp)
beqz a1, _C_LABEL(_setjmp)
j _C_LABEL(setjmp)
END(sigsetjmp)
ENTRY(siglongjmp)
/* Load the _setjmp magic */
ld a2, .Lmagic
ld a3, 0(a0)
/* Check the magic */
beq a2, a3, _C_LABEL(_longjmp)
j _C_LABEL(longjmp)
.align 3
.Lmagic:
.quad _JB_MAGIC__SETJMP
END(siglongjmp)

25
lib/libc/riscv/sys/Makefile.inc Normal file
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# $FreeBSD$
SRCS+= trivial-vdso_tc.c
#MDASM= ptrace.S
MDASM= brk.S \
cerror.S \
pipe.S \
sbrk.S \
shmat.S \
sigreturn.S \
syscall.S \
vfork.S
# Don't generate default code for these syscalls:
NOASM= break.o \
exit.o \
getlogin.o \
openbsd_poll.o \
sstk.o \
vfork.o \
yield.o
PSEUDO= _exit.o \
_getlogin.o

79
lib/libc/riscv/sys/brk.S Normal file
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/*-
* 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("$FreeBSD$");
#include "SYS.h"
.globl _C_LABEL(_end)
.data
.align 3
.globl _C_LABEL(minbrk)
.type _C_LABEL(minbrk), %object
_C_LABEL(minbrk):
.quad _C_LABEL(_end)
.text
/*
* int brk(const void *addr);
*/
ENTRY(_brk)
WEAK_REFERENCE(_brk, brk)
/* Load the address of minbrk */
la a3, minbrk
ld a2, 0(a3)
/* Validate the address */
bge a0, a2, 1f
/* Invalid, set it to the minimum */
mv a0, a2
/* Backup the new address */
1: mv a4, a0
/* Update for this value, will overwrite a0 and a1 */
_SYSCALL(break)
bnez t0, cerror
/* Store the new curbrk value */
la a2, curbrk
sd a4, 0(a2)
/* Return success */
li a0, 0
ret
END(_brk)

50
lib/libc/riscv/sys/cerror.S Normal file
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/*-
* 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("$FreeBSD$");
ENTRY(cerror)
addi sp, sp, -16
sd a0, 0(sp)
sd ra, 8(sp)
call _C_LABEL(__error)
ld a1, 0(sp)
ld ra, 8(sp)
sw a1, 0(a0)
li a0, -1
li a1, -1
addi sp, sp, 16
ret
END(cerror)

57
lib/libc/riscv/sys/pipe.S Normal file
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/*-
* 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("$FreeBSD$");
#include "SYS.h"
ENTRY(__sys_pipe)
WEAK_REFERENCE(__sys_pipe, pipe)
/* Backup the pointer passed to us */
mv a2, a0
/* Make the syscall */
_SYSCALL(pipe)
bnez t0, cerror
/* Store the result */
sw a0, 0(a2)
sw a1, 4(a2)
/* Return */
li a0, 0
ret
END(__sys_pipe)

77
lib/libc/riscv/sys/sbrk.S Normal file
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/*-
* 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("$FreeBSD$");
#include "SYS.h"
.globl _C_LABEL(_end)
.data
.align 3
.global _C_LABEL(curbrk)
.type _C_LABEL(curbrk), %object
_C_LABEL(curbrk):
.quad _C_LABEL(_end)
.text
/*
* void *sbrk(intptr_t incr);
*/
ENTRY(_sbrk)
WEAK_REFERENCE(_sbrk, sbrk)
/* Load the address of curbrk */
la a3, curbrk
/* Get the current brk address */
ld a2, 0(a3)
/* Calculate the new value */
add a0, a0, a2
mv a4, a0
/* Update for this value, will overwrite a0 and a1 */
_SYSCALL(break)
bnez t0, cerror
/* Load the old value to return */
ld a0, 0(a3)
/* Store the new curbrk value */
sd a4, 0(a3)
ret
END(_sbrk)

40
lib/libc/riscv/sys/shmat.S Normal file
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@ -0,0 +1,40 @@
/*-
* 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("$FreeBSD$");
#include "SYS.h"
RSYSCALL(shmat)

40
lib/libc/riscv/sys/sigreturn.S Normal file
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@ -0,0 +1,40 @@
/*-
* 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("$FreeBSD$");
#include "SYS.h"
RSYSCALL(sigreturn)

40
lib/libc/riscv/sys/syscall.S Normal file
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@ -0,0 +1,40 @@
/*-
* 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("$FreeBSD$");
#include "SYS.h"
RSYSCALL(syscall)

51
lib/libc/riscv/sys/vfork.S Normal file
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/*-
* 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("$FreeBSD$");
#include "SYS.h"
ENTRY(__sys_vfork)
WEAK_REFERENCE(__sys_vfork, vfork)
WEAK_REFERENCE(__sys_vfork, _vfork)
mv a2, ra
_SYSCALL(vfork)
bnez t0, cerror
addi a1, a1, -1
and a0, a0, a1
mv ra, a2
ret
END(__sys_vfork)

6
lib/libc/xdr/xdr_float.c
View File

@ -61,14 +61,8 @@ __FBSDID("$FreeBSD$");
* This routine works on machines with IEEE754 FP and Vaxen.
*/
#if defined(__m68k__) || defined(__sparc__) || defined(__i386__) || \
defined(__mips__) || defined(__ns32k__) || defined(__alpha__) || \
defined(__arm__) || defined(__ppc__) || \
defined(__arm26__) || defined(__sparc64__) || defined(__amd64__) || \
defined(__aarch64__)
#include <machine/endian.h>
#define IEEEFP
#endif
#if defined(__vax__)

4
lib/libstand/Makefile
View File

@ -65,8 +65,8 @@ SRCS+= aeabi_idivmod.S aeabi_ldivmod.S aeabi_uidivmod.S aeabi_uldivmod.S
SRCS+= aeabi_memcmp.S aeabi_memcpy.S aeabi_memmove.S aeabi_memset.S
.endif
.if ${MACHINE_CPUARCH} == "aarch64"
.PATH: ${LIBC_SRC}/aarch64/gen
.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
.PATH: ${LIBC_SRC}/${MACHINE_CPUARCH}/gen
.endif
.if ${MACHINE_CPUARCH} == "powerpc"