Import the FreeBSD/arm libc bits.
Obtained from: NetBSD
This commit is contained in:
parent
1d7c6c3311
commit
2357939bc2
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=129202
@ -57,6 +57,9 @@ NOASM=
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.include "${.CURDIR}/rpc/Makefile.inc"
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.include "${.CURDIR}/uuid/Makefile.inc"
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.include "${.CURDIR}/xdr/Makefile.inc"
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.if ${MACHINE_ARCH} == "arm"
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.include "${.CURDIR}/softfloat/Makefile.inc"
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.endif
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.if !defined(NO_YP_LIBC)
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CFLAGS+= -DYP
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.include "${.CURDIR}/yp/Makefile.inc"
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90
lib/libc/arm/SYS.h
Normal file
90
lib/libc/arm/SYS.h
Normal file
@ -0,0 +1,90 @@
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/* $NetBSD: SYS.h,v 1.8 2003/08/07 16:42:02 agc Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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||||
* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)SYS.h 5.5 (Berkeley) 5/7/91
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* $FreeBSD$
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*/
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#include <machine/asm.h>
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#include <sys/syscall.h>
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#include <machine/swi.h>
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#ifdef __STDC__
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#define SYSTRAP(x) swi 0 | SYS_ ## x
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#else
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#define SYSTRAP(x) swi 0 | SYS_/**/x
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#endif
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#ifdef __ELF__
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#define CERROR _C_LABEL(cerror)
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#define CURBRK _C_LABEL(curbrk)
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#else
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#define CERROR _ASM_LABEL(cerror)
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#define CURBRK _ASM_LABEL(curbrk)
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#endif
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#define _SYSCALL_NOERROR(x) \
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ENTRY(__CONCAT(__sys_, x)); \
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.weak _C_LABEL(x); \
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.set _C_LABEL(x), _C_LABEL(__CONCAT(__sys_,x)); \
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.weak _C_LABEL(__CONCAT(_,x)); \
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.set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x)); \
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SYSTRAP(x)
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#define _SYSCALL(x) \
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_SYSCALL_NOERROR(x); \
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bcs PIC_SYM(CERROR, PLT)
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#define SYSCALL_NOERROR(x) \
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_SYSCALL_NOERROR(x)
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#define SYSCALL(x) \
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_SYSCALL(x)
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#define PSEUDO_NOERROR(x) \
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_SYSCALL_NOERROR(x); \
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mov r15, r14
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#define PSEUDO(x) \
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_SYSCALL(x); \
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mov r15, r14
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#define RSYSCALL_NOERROR(x) \
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PSEUDO_NOERROR(x)
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#define RSYSCALL(x) \
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PSEUDO(x)
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.globl CERROR
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48
lib/libc/arm/_fpmath.h
Normal file
48
lib/libc/arm/_fpmath.h
Normal file
@ -0,0 +1,48 @@
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/*-
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* Copyright (c) 2002, 2003 David Schultz <dschultz@uclink.Berkeley.EDU>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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union IEEEl2bits {
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long double e;
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struct {
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unsigned int manl :32;
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unsigned int manh :32;
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unsigned int exp :15;
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unsigned int sign :1;
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unsigned int junk :16;
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} bits;
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};
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#define mask_nbit_l(u) ((u).bits.manh &= 0x7fffffff)
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#define LDBL_MANH_SIZE 32
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#define LDBL_MANL_SIZE 32
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#define LDBL_TO_ARRAY32(u, a) do { \
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(a)[0] = (uint32_t)(u).bits.manl; \
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(a)[1] = (uint32_t)(u).bits.manh; \
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} while(0)
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16
lib/libc/arm/arith.h
Normal file
16
lib/libc/arm/arith.h
Normal file
@ -0,0 +1,16 @@
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/*
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* MD header for contrib/gdtoa
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*
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* $FreeBSD$
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*/
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/*
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* NOTE: The definitions in this file must be correct or strtod(3) and
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* floating point formats in printf(3) will break! The file can be
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* generated by running contrib/gdtoa/arithchk.c on the target
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* architecture. See contrib/gdtoa/gdtoaimp.h for details.
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*/
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#define IEEE_8087
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#define Arith_Kind_ASL 1
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#define Sudden_Underflow
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6
lib/libc/arm/gen/Makefile.inc
Normal file
6
lib/libc/arm/gen/Makefile.inc
Normal file
@ -0,0 +1,6 @@
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# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93
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# $FreeBSD$
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SRCS+= _ctx_start.S _setjmp.S alloca.S fabs.c frexp.c \
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infinity.c isinf.c ldexp.c makecontext.c modf.c \
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setjmp.S signalcontext.c sigsetjmp.S divsi3.S
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8
lib/libc/arm/gen/_ctx_start.S
Normal file
8
lib/libc/arm/gen/_ctx_start.S
Normal file
@ -0,0 +1,8 @@
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#include <machine/asm.h>
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.ident "$FreeBSD$"
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ENTRY(_ctx_start)
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mov pc, r0
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mov r0, r1
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bl _C_LABEL(ctx_done)
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bl _C_LABEL(abort)
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105
lib/libc/arm/gen/_setjmp.S
Normal file
105
lib/libc/arm/gen/_setjmp.S
Normal file
@ -0,0 +1,105 @@
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/* $NetBSD: _setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $ */
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/*
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* Copyright (c) 1997 Mark Brinicombe
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mark Brinicombe
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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#define SOFTFLOAT /* XXX */
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/*
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* C library -- _setjmp, _longjmp
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*
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* _longjmp(a,v)
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* will generate a "return(v)" from the last call to
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* _setjmp(a)
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* by restoring registers from the stack.
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* The previous signal state is NOT restored.
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*
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* Note: r0 is the return value
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* r1-r3 are scratch registers in functions
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*/
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ENTRY(_setjmp)
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ldr r1, .L_setjmp_magic
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str r1, [r0], #4
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#ifdef SOFTFLOAT
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add r0, r0, #52
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#else
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/* Store fp registers */
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sfm f4, 4, [r0], #48
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/* Store fpsr */
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rfs r1
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str r1, [r0], #0x0004
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#endif /* SOFTFLOAT */
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/* Store integer registers */
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stmia r0, {r4-r14}
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mov r0, #0x00000000
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mov r15, r14
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.L_setjmp_magic:
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.word _JB_MAGIC__SETJMP
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ENTRY(_longjmp)
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ldr r2, .L_setjmp_magic
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ldr r3, [r0], #4
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teq r2, r3
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bne botch
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#ifdef SOFTFLOAT
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add r0, r0, #52
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#else
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/* Restore fp registers */
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lfm f4, 4, [r0], #48
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/* Restore fpsr */
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ldr r4, [r0], #0x0004
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wfs r4
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#endif /* SOFTFLOAT */
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/* Restore integer registers */
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ldmia r0, {r4-r14}
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/* Validate sp and r14 */
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teq sp, #0
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teqne r14, #0
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beq botch
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/* Set return value */
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mov r0, r1
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teq r0, #0x00000000
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moveq r0, #0x00000001
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mov r15, r14
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/* validation failed, die die die. */
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botch:
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bl PIC_SYM(_C_LABEL(longjmperror), PLT)
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bl PIC_SYM(_C_LABEL(abort), PLT)
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b . - 8 /* Cannot get here */
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45
lib/libc/arm/gen/alloca.S
Normal file
45
lib/libc/arm/gen/alloca.S
Normal file
@ -0,0 +1,45 @@
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/* $NetBSD: alloca.S,v 1.3 2003/04/05 23:08:51 bjh21 Exp $ */
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/*
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* Copyright (c) 1995 Mark Brinicombe
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* are met:
|
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* 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.
|
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* 3. All advertising materials mentioning features or use of this software
|
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* must display the following acknowledgement:
|
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* This product includes software developed by Mark Brinicombe
|
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* 4. Neither the name of the University nor the names of its contributors
|
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
|
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*
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* 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
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*/
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/* like alloc, but automatic automatic free in return */
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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ENTRY(alloca)
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add r0, r0, #0x00000007 /* round up to next 8 byte alignment */
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bic r0, r0, #0x00000007
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sub sp, sp, r0 /* Adjust the stack pointer */
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mov r0, sp /* r0 = base of new space */
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mov r15, r14 /* return */
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387
lib/libc/arm/gen/divsi3.S
Normal file
387
lib/libc/arm/gen/divsi3.S
Normal file
@ -0,0 +1,387 @@
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/* $NetBSD: divsi3.S,v 1.4 2003/04/05 23:27:15 bjh21 Exp $ */
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/*
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* 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.
|
||||
*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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/*
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* stack is aligned as there's a possibility of branching to L_overflow
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* which makes a C call
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*/
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ENTRY(__umodsi3)
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stmfd sp!, {lr}
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sub sp, sp, #4 /* align stack */
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bl .L_udivide
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add sp, sp, #4 /* unalign stack */
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mov r0, r1
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ldmfd sp!, {pc}
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ENTRY(__modsi3)
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stmfd sp!, {lr}
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sub sp, sp, #4 /* align stack */
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bl .L_divide
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add sp, sp, #4 /* unalign stack */
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mov r0, r1
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ldmfd sp!, {pc}
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.L_overflow:
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#if !defined(_KERNEL) && !defined(_STANDALONE)
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mov r0, #8 /* SIGFPE */
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bl PIC_SYM(_C_LABEL(raise), PLT) /* raise it */
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mov r0, #0
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#else
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/* XXX should cause a fatal error */
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mvn r0, #0
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#endif
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mov pc, lr
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ENTRY(__udivsi3)
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.L_udivide: /* r0 = r0 / r1; r1 = r0 % r1 */
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eor r0, r1, r0
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eor r1, r0, r1
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eor r0, r1, r0
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/* r0 = r1 / r0; r1 = r1 % r0 */
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cmp r0, #1
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bcc .L_overflow
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beq .L_divide_l0
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mov ip, #0
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movs r1, r1
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bpl .L_divide_l1
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orr ip, ip, #0x20000000 /* ip bit 0x20000000 = -ve r1 */
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movs r1, r1, lsr #1
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orrcs ip, ip, #0x10000000 /* ip bit 0x10000000 = bit 0 of r1 */
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b .L_divide_l1
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.L_divide_l0: /* r0 == 1 */
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mov r0, r1
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mov r1, #0
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mov pc, lr
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ENTRY(__divsi3)
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.L_divide: /* r0 = r0 / r1; r1 = r0 % r1 */
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eor r0, r1, r0
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eor r1, r0, r1
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eor r0, r1, r0
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/* r0 = r1 / r0; r1 = r1 % r0 */
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cmp r0, #1
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bcc .L_overflow
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beq .L_divide_l0
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ands ip, r0, #0x80000000
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rsbmi r0, r0, #0
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ands r2, r1, #0x80000000
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eor ip, ip, r2
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rsbmi r1, r1, #0
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orr ip, r2, ip, lsr #1 /* ip bit 0x40000000 = -ve division */
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/* ip bit 0x80000000 = -ve remainder */
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.L_divide_l1:
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mov r2, #1
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mov r3, #0
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/*
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* If the highest bit of the dividend is set, we have to be
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||||
* careful when shifting the divisor. Test this.
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||||
*/
|
||||
movs r1,r1
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||||
bpl .L_old_code
|
||||
|
||||
/*
|
||||
* At this point, the highest bit of r1 is known to be set.
|
||||
* We abuse this below in the tst instructions.
|
||||
*/
|
||||
tst r1, r0 /*, lsl #0 */
|
||||
bmi .L_divide_b1
|
||||
tst r1, r0, lsl #1
|
||||
bmi .L_divide_b2
|
||||
tst r1, r0, lsl #2
|
||||
bmi .L_divide_b3
|
||||
tst r1, r0, lsl #3
|
||||
bmi .L_divide_b4
|
||||
tst r1, r0, lsl #4
|
||||
bmi .L_divide_b5
|
||||
tst r1, r0, lsl #5
|
||||
bmi .L_divide_b6
|
||||
tst r1, r0, lsl #6
|
||||
bmi .L_divide_b7
|
||||
tst r1, r0, lsl #7
|
||||
bmi .L_divide_b8
|
||||
tst r1, r0, lsl #8
|
||||
bmi .L_divide_b9
|
||||
tst r1, r0, lsl #9
|
||||
bmi .L_divide_b10
|
||||
tst r1, r0, lsl #10
|
||||
bmi .L_divide_b11
|
||||
tst r1, r0, lsl #11
|
||||
bmi .L_divide_b12
|
||||
tst r1, r0, lsl #12
|
||||
bmi .L_divide_b13
|
||||
tst r1, r0, lsl #13
|
||||
bmi .L_divide_b14
|
||||
tst r1, r0, lsl #14
|
||||
bmi .L_divide_b15
|
||||
tst r1, r0, lsl #15
|
||||
bmi .L_divide_b16
|
||||
tst r1, r0, lsl #16
|
||||
bmi .L_divide_b17
|
||||
tst r1, r0, lsl #17
|
||||
bmi .L_divide_b18
|
||||
tst r1, r0, lsl #18
|
||||
bmi .L_divide_b19
|
||||
tst r1, r0, lsl #19
|
||||
bmi .L_divide_b20
|
||||
tst r1, r0, lsl #20
|
||||
bmi .L_divide_b21
|
||||
tst r1, r0, lsl #21
|
||||
bmi .L_divide_b22
|
||||
tst r1, r0, lsl #22
|
||||
bmi .L_divide_b23
|
||||
tst r1, r0, lsl #23
|
||||
bmi .L_divide_b24
|
||||
tst r1, r0, lsl #24
|
||||
bmi .L_divide_b25
|
||||
tst r1, r0, lsl #25
|
||||
bmi .L_divide_b26
|
||||
tst r1, r0, lsl #26
|
||||
bmi .L_divide_b27
|
||||
tst r1, r0, lsl #27
|
||||
bmi .L_divide_b28
|
||||
tst r1, r0, lsl #28
|
||||
bmi .L_divide_b29
|
||||
tst r1, r0, lsl #29
|
||||
bmi .L_divide_b30
|
||||
tst r1, r0, lsl #30
|
||||
bmi .L_divide_b31
|
||||
/*
|
||||
* instead of:
|
||||
* tst r1, r0, lsl #31
|
||||
* bmi .L_divide_b32
|
||||
*/
|
||||
b .L_divide_b32
|
||||
|
||||
.L_old_code:
|
||||
cmp r1, r0
|
||||
bcc .L_divide_b0
|
||||
cmp r1, r0, lsl #1
|
||||
bcc .L_divide_b1
|
||||
cmp r1, r0, lsl #2
|
||||
bcc .L_divide_b2
|
||||
cmp r1, r0, lsl #3
|
||||
bcc .L_divide_b3
|
||||
cmp r1, r0, lsl #4
|
||||
bcc .L_divide_b4
|
||||
cmp r1, r0, lsl #5
|
||||
bcc .L_divide_b5
|
||||
cmp r1, r0, lsl #6
|
||||
bcc .L_divide_b6
|
||||
cmp r1, r0, lsl #7
|
||||
bcc .L_divide_b7
|
||||
cmp r1, r0, lsl #8
|
||||
bcc .L_divide_b8
|
||||
cmp r1, r0, lsl #9
|
||||
bcc .L_divide_b9
|
||||
cmp r1, r0, lsl #10
|
||||
bcc .L_divide_b10
|
||||
cmp r1, r0, lsl #11
|
||||
bcc .L_divide_b11
|
||||
cmp r1, r0, lsl #12
|
||||
bcc .L_divide_b12
|
||||
cmp r1, r0, lsl #13
|
||||
bcc .L_divide_b13
|
||||
cmp r1, r0, lsl #14
|
||||
bcc .L_divide_b14
|
||||
cmp r1, r0, lsl #15
|
||||
bcc .L_divide_b15
|
||||
cmp r1, r0, lsl #16
|
||||
bcc .L_divide_b16
|
||||
cmp r1, r0, lsl #17
|
||||
bcc .L_divide_b17
|
||||
cmp r1, r0, lsl #18
|
||||
bcc .L_divide_b18
|
||||
cmp r1, r0, lsl #19
|
||||
bcc .L_divide_b19
|
||||
cmp r1, r0, lsl #20
|
||||
bcc .L_divide_b20
|
||||
cmp r1, r0, lsl #21
|
||||
bcc .L_divide_b21
|
||||
cmp r1, r0, lsl #22
|
||||
bcc .L_divide_b22
|
||||
cmp r1, r0, lsl #23
|
||||
bcc .L_divide_b23
|
||||
cmp r1, r0, lsl #24
|
||||
bcc .L_divide_b24
|
||||
cmp r1, r0, lsl #25
|
||||
bcc .L_divide_b25
|
||||
cmp r1, r0, lsl #26
|
||||
bcc .L_divide_b26
|
||||
cmp r1, r0, lsl #27
|
||||
bcc .L_divide_b27
|
||||
cmp r1, r0, lsl #28
|
||||
bcc .L_divide_b28
|
||||
cmp r1, r0, lsl #29
|
||||
bcc .L_divide_b29
|
||||
cmp r1, r0, lsl #30
|
||||
bcc .L_divide_b30
|
||||
.L_divide_b32:
|
||||
cmp r1, r0, lsl #31
|
||||
subhs r1, r1,r0, lsl #31
|
||||
addhs r3, r3,r2, lsl #31
|
||||
.L_divide_b31:
|
||||
cmp r1, r0, lsl #30
|
||||
subhs r1, r1,r0, lsl #30
|
||||
addhs r3, r3,r2, lsl #30
|
||||
.L_divide_b30:
|
||||
cmp r1, r0, lsl #29
|
||||
subhs r1, r1,r0, lsl #29
|
||||
addhs r3, r3,r2, lsl #29
|
||||
.L_divide_b29:
|
||||
cmp r1, r0, lsl #28
|
||||
subhs r1, r1,r0, lsl #28
|
||||
addhs r3, r3,r2, lsl #28
|
||||
.L_divide_b28:
|
||||
cmp r1, r0, lsl #27
|
||||
subhs r1, r1,r0, lsl #27
|
||||
addhs r3, r3,r2, lsl #27
|
||||
.L_divide_b27:
|
||||
cmp r1, r0, lsl #26
|
||||
subhs r1, r1,r0, lsl #26
|
||||
addhs r3, r3,r2, lsl #26
|
||||
.L_divide_b26:
|
||||
cmp r1, r0, lsl #25
|
||||
subhs r1, r1,r0, lsl #25
|
||||
addhs r3, r3,r2, lsl #25
|
||||
.L_divide_b25:
|
||||
cmp r1, r0, lsl #24
|
||||
subhs r1, r1,r0, lsl #24
|
||||
addhs r3, r3,r2, lsl #24
|
||||
.L_divide_b24:
|
||||
cmp r1, r0, lsl #23
|
||||
subhs r1, r1,r0, lsl #23
|
||||
addhs r3, r3,r2, lsl #23
|
||||
.L_divide_b23:
|
||||
cmp r1, r0, lsl #22
|
||||
subhs r1, r1,r0, lsl #22
|
||||
addhs r3, r3,r2, lsl #22
|
||||
.L_divide_b22:
|
||||
cmp r1, r0, lsl #21
|
||||
subhs r1, r1,r0, lsl #21
|
||||
addhs r3, r3,r2, lsl #21
|
||||
.L_divide_b21:
|
||||
cmp r1, r0, lsl #20
|
||||
subhs r1, r1,r0, lsl #20
|
||||
addhs r3, r3,r2, lsl #20
|
||||
.L_divide_b20:
|
||||
cmp r1, r0, lsl #19
|
||||
subhs r1, r1,r0, lsl #19
|
||||
addhs r3, r3,r2, lsl #19
|
||||
.L_divide_b19:
|
||||
cmp r1, r0, lsl #18
|
||||
subhs r1, r1,r0, lsl #18
|
||||
addhs r3, r3,r2, lsl #18
|
||||
.L_divide_b18:
|
||||
cmp r1, r0, lsl #17
|
||||
subhs r1, r1,r0, lsl #17
|
||||
addhs r3, r3,r2, lsl #17
|
||||
.L_divide_b17:
|
||||
cmp r1, r0, lsl #16
|
||||
subhs r1, r1,r0, lsl #16
|
||||
addhs r3, r3,r2, lsl #16
|
||||
.L_divide_b16:
|
||||
cmp r1, r0, lsl #15
|
||||
subhs r1, r1,r0, lsl #15
|
||||
addhs r3, r3,r2, lsl #15
|
||||
.L_divide_b15:
|
||||
cmp r1, r0, lsl #14
|
||||
subhs r1, r1,r0, lsl #14
|
||||
addhs r3, r3,r2, lsl #14
|
||||
.L_divide_b14:
|
||||
cmp r1, r0, lsl #13
|
||||
subhs r1, r1,r0, lsl #13
|
||||
addhs r3, r3,r2, lsl #13
|
||||
.L_divide_b13:
|
||||
cmp r1, r0, lsl #12
|
||||
subhs r1, r1,r0, lsl #12
|
||||
addhs r3, r3,r2, lsl #12
|
||||
.L_divide_b12:
|
||||
cmp r1, r0, lsl #11
|
||||
subhs r1, r1,r0, lsl #11
|
||||
addhs r3, r3,r2, lsl #11
|
||||
.L_divide_b11:
|
||||
cmp r1, r0, lsl #10
|
||||
subhs r1, r1,r0, lsl #10
|
||||
addhs r3, r3,r2, lsl #10
|
||||
.L_divide_b10:
|
||||
cmp r1, r0, lsl #9
|
||||
subhs r1, r1,r0, lsl #9
|
||||
addhs r3, r3,r2, lsl #9
|
||||
.L_divide_b9:
|
||||
cmp r1, r0, lsl #8
|
||||
subhs r1, r1,r0, lsl #8
|
||||
addhs r3, r3,r2, lsl #8
|
||||
.L_divide_b8:
|
||||
cmp r1, r0, lsl #7
|
||||
subhs r1, r1,r0, lsl #7
|
||||
addhs r3, r3,r2, lsl #7
|
||||
.L_divide_b7:
|
||||
cmp r1, r0, lsl #6
|
||||
subhs r1, r1,r0, lsl #6
|
||||
addhs r3, r3,r2, lsl #6
|
||||
.L_divide_b6:
|
||||
cmp r1, r0, lsl #5
|
||||
subhs r1, r1,r0, lsl #5
|
||||
addhs r3, r3,r2, lsl #5
|
||||
.L_divide_b5:
|
||||
cmp r1, r0, lsl #4
|
||||
subhs r1, r1,r0, lsl #4
|
||||
addhs r3, r3,r2, lsl #4
|
||||
.L_divide_b4:
|
||||
cmp r1, r0, lsl #3
|
||||
subhs r1, r1,r0, lsl #3
|
||||
addhs r3, r3,r2, lsl #3
|
||||
.L_divide_b3:
|
||||
cmp r1, r0, lsl #2
|
||||
subhs r1, r1,r0, lsl #2
|
||||
addhs r3, r3,r2, lsl #2
|
||||
.L_divide_b2:
|
||||
cmp r1, r0, lsl #1
|
||||
subhs r1, r1,r0, lsl #1
|
||||
addhs r3, r3,r2, lsl #1
|
||||
.L_divide_b1:
|
||||
cmp r1, r0
|
||||
subhs r1, r1, r0
|
||||
addhs r3, r3, r2
|
||||
.L_divide_b0:
|
||||
|
||||
tst ip, #0x20000000
|
||||
bne .L_udivide_l1
|
||||
mov r0, r3
|
||||
cmp ip, #0
|
||||
rsbmi r1, r1, #0
|
||||
movs ip, ip, lsl #1
|
||||
bicmi r0, r0, #0x80000000 /* Fix incase we divided 0x80000000 */
|
||||
rsbmi r0, r0, #0
|
||||
mov pc, lr
|
||||
|
||||
.L_udivide_l1:
|
||||
tst ip, #0x10000000
|
||||
mov r1, r1, lsl #1
|
||||
orrne r1, r1, #1
|
||||
mov r3, r3, lsl #1
|
||||
cmp r1, r0
|
||||
subhs r1, r1, r0
|
||||
addhs r3, r3, r2
|
||||
mov r0, r3
|
||||
mov pc, lr
|
46
lib/libc/arm/gen/fabs.c
Normal file
46
lib/libc/arm/gen/fabs.c
Normal file
@ -0,0 +1,46 @@
|
||||
/* $NetBSD: fabs.c,v 1.2 2002/05/26 11:48:01 wiz Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1996 Mark Brinicombe
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* fabs(x) returns the absolute value of x.
|
||||
*/
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
double
|
||||
fabs(double x)
|
||||
{
|
||||
if (x < 0)
|
||||
x = -x;
|
||||
return(x);
|
||||
}
|
67
lib/libc/arm/gen/frexp.c
Normal file
67
lib/libc/arm/gen/frexp.c
Normal file
@ -0,0 +1,67 @@
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993
|
||||
* The Regents of the University of California. 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
static char sccsid[] = "@(#)frexp.c 8.1 (Berkeley) 6/4/93";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <math.h>
|
||||
|
||||
double
|
||||
frexp(value, eptr)
|
||||
double value;
|
||||
int *eptr;
|
||||
{
|
||||
union {
|
||||
double v;
|
||||
struct {
|
||||
u_int u_mant2 : 32;
|
||||
u_int u_mant1 : 20;
|
||||
u_int u_exp : 11;
|
||||
u_int u_sign : 1;
|
||||
} s;
|
||||
} u;
|
||||
|
||||
if (value) {
|
||||
u.v = value;
|
||||
*eptr = u.s.u_exp - 1022;
|
||||
u.s.u_exp = 1022;
|
||||
return(u.v);
|
||||
} else {
|
||||
*eptr = 0;
|
||||
return((double)0);
|
||||
}
|
||||
}
|
26
lib/libc/arm/gen/infinity.c
Normal file
26
lib/libc/arm/gen/infinity.c
Normal file
@ -0,0 +1,26 @@
|
||||
/*
|
||||
* infinity.c
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <math.h>
|
||||
|
||||
/* bytes for +Infinity on a 387 */
|
||||
const union __infinity_un __infinity = {
|
||||
#if BYTE_ORDER == BIG_ENDIAN
|
||||
{ 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
|
||||
#else
|
||||
{ 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
|
||||
#endif
|
||||
};
|
||||
|
||||
/* bytes for NaN */
|
||||
const union __nan_un __nan = {
|
||||
#if BYTE_ORDER == BIG_ENDIAN
|
||||
{0xff, 0xc0, 0, 0}
|
||||
#else
|
||||
{ 0, 0, 0xc0, 0xff }
|
||||
#endif
|
||||
};
|
70
lib/libc/arm/gen/isinf.c
Normal file
70
lib/libc/arm/gen/isinf.c
Normal file
@ -0,0 +1,70 @@
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993
|
||||
* The Regents of the University of California. 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*/
|
||||
|
||||
/* For binary compat; to be removed in FreeBSD 6.0. */
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
static char sccsid[] = "@(#)isinf.c 8.1 (Berkeley) 6/4/93";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
int
|
||||
isnan(d)
|
||||
double d;
|
||||
{
|
||||
register struct IEEEdp {
|
||||
u_int manl : 32;
|
||||
u_int manh : 20;
|
||||
u_int exp : 11;
|
||||
u_int sign : 1;
|
||||
} *p = (struct IEEEdp *)&d;
|
||||
|
||||
return(p->exp == 2047 && (p->manh || p->manl));
|
||||
}
|
||||
|
||||
int
|
||||
isinf(d)
|
||||
double d;
|
||||
{
|
||||
register struct IEEEdp {
|
||||
u_int manl : 32;
|
||||
u_int manh : 20;
|
||||
u_int exp : 11;
|
||||
u_int sign : 1;
|
||||
} *p = (struct IEEEdp *)&d;
|
||||
|
||||
return(p->exp == 2047 && !p->manh && !p->manl);
|
||||
}
|
155
lib/libc/arm/gen/ldexp.c
Normal file
155
lib/libc/arm/gen/ldexp.c
Normal file
@ -0,0 +1,155 @@
|
||||
/*-
|
||||
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Charles M. Hannum.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
|
||||
#if 0
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
__RCSID("$NetBSD: ldexp.c,v 1.8 1999/08/30 18:28:26 mycroft Exp $");
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
#endif
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <errno.h>
|
||||
#include <math.h>
|
||||
#include <machine/ieee.h>
|
||||
|
||||
/*
|
||||
* Multiply the given value by 2^exp.
|
||||
*/
|
||||
double
|
||||
ldexp(val, exp)
|
||||
double val;
|
||||
int exp;
|
||||
{
|
||||
int oldexp, newexp;
|
||||
union {
|
||||
double v;
|
||||
struct ieee_double s;
|
||||
} u, mul;
|
||||
|
||||
u.v = val;
|
||||
oldexp = u.s.dbl_exp;
|
||||
|
||||
/*
|
||||
* If input is zero, Inf or NaN, just return it.
|
||||
*/
|
||||
if (u.v == 0.0 || oldexp == DBL_EXP_INFNAN)
|
||||
return (val);
|
||||
|
||||
if (oldexp == 0) {
|
||||
/*
|
||||
* u.v is denormal. We must adjust it so that the exponent
|
||||
* arithmetic below will work.
|
||||
*/
|
||||
if (exp <= DBL_EXP_BIAS) {
|
||||
/*
|
||||
* Optimization: if the scaling can be done in a single
|
||||
* multiply, or underflows, just do it now.
|
||||
*/
|
||||
if (exp <= -DBL_FRACBITS) {
|
||||
errno = ERANGE;
|
||||
return (0.0);
|
||||
}
|
||||
mul.v = 0.0;
|
||||
mul.s.dbl_exp = exp + DBL_EXP_BIAS;
|
||||
u.v *= mul.v;
|
||||
if (u.v == 0.0) {
|
||||
errno = ERANGE;
|
||||
return (0.0);
|
||||
}
|
||||
return (u.v);
|
||||
} else {
|
||||
/*
|
||||
* We know that exp is very large, and therefore the
|
||||
* result cannot be denormal (though it may be Inf).
|
||||
* Shift u.v by just enough to make it normal.
|
||||
*/
|
||||
mul.v = 0.0;
|
||||
mul.s.dbl_exp = DBL_FRACBITS + DBL_EXP_BIAS;
|
||||
u.v *= mul.v;
|
||||
exp -= DBL_FRACBITS;
|
||||
oldexp = u.s.dbl_exp;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* u.v is now normalized and oldexp has been adjusted if necessary.
|
||||
* Calculate the new exponent and check for underflow and overflow.
|
||||
*/
|
||||
newexp = oldexp + exp;
|
||||
|
||||
if (newexp <= 0) {
|
||||
/*
|
||||
* The output number is either denormal or underflows (see
|
||||
* comments in machine/ieee.h).
|
||||
*/
|
||||
if (newexp <= -DBL_FRACBITS) {
|
||||
errno = ERANGE;
|
||||
return (0.0);
|
||||
}
|
||||
/*
|
||||
* Denormalize the result. We do this with a multiply. If exp
|
||||
* is very large, it won't fit in a double, so we have to
|
||||
* adjust the exponent first. This is safe because we know
|
||||
* that u.v is normal at this point.
|
||||
*/
|
||||
if (exp <= -DBL_EXP_BIAS) {
|
||||
u.s.dbl_exp = 1;
|
||||
exp += oldexp - 1;
|
||||
}
|
||||
mul.v = 0.0;
|
||||
mul.s.dbl_exp = exp + DBL_EXP_BIAS;
|
||||
u.v *= mul.v;
|
||||
return (u.v);
|
||||
} else if (newexp >= DBL_EXP_INFNAN) {
|
||||
/*
|
||||
* The result overflowed; return +/-Inf.
|
||||
*/
|
||||
u.s.dbl_exp = DBL_EXP_INFNAN;
|
||||
u.s.dbl_frach = 0;
|
||||
u.s.dbl_fracl = 0;
|
||||
errno = ERANGE;
|
||||
return (u.v);
|
||||
} else {
|
||||
/*
|
||||
* The result is normal; just replace the old exponent with the
|
||||
* new one.
|
||||
*/
|
||||
u.s.dbl_exp = newexp;
|
||||
return (u.v);
|
||||
}
|
||||
}
|
94
lib/libc/arm/gen/makecontext.c
Normal file
94
lib/libc/arm/gen/makecontext.c
Normal file
@ -0,0 +1,94 @@
|
||||
/* $NetBSD: makecontext.c,v 1.2 2003/01/18 11:06:24 thorpej Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Klaus Klein.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <stdlib.h>
|
||||
#include <stddef.h>
|
||||
#include <inttypes.h>
|
||||
#include <ucontext.h>
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
extern void _ctx_start(ucontext_t *, int argc, ...);
|
||||
|
||||
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, ...)
|
||||
{
|
||||
__greg_t *gr = ucp->uc_mcontext.__gregs;
|
||||
int i;
|
||||
unsigned int *sp;
|
||||
va_list ap;
|
||||
|
||||
/* Compute and align stack pointer. */
|
||||
sp = (unsigned int *)
|
||||
(((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & ~7);
|
||||
/* Allocate necessary stack space for arguments exceeding r0-3. */
|
||||
if (argc > 4)
|
||||
sp -= argc - 4;
|
||||
gr[_REG_SP] = (__greg_t)sp;
|
||||
/* Wipe out frame pointer. */
|
||||
gr[_REG_FP] = 0;
|
||||
/* Arrange for return via the trampoline code. */
|
||||
gr[_REG_LR] = (__greg_t)_ctx_start;
|
||||
gr[_REG_PC] = (__greg_t)func;
|
||||
|
||||
va_start(ap, argc);
|
||||
/* Pass up to four arguments in r0-3. */
|
||||
for (i = 0; i < argc && i < 4; i++)
|
||||
gr[_REG_R0 + i] = va_arg(ap, int);
|
||||
/* Pass any additional arguments on the stack. */
|
||||
for (argc -= i; argc > 0; argc--)
|
||||
*sp++ = va_arg(ap, int);
|
||||
va_end(ap);
|
||||
}
|
107
lib/libc/arm/gen/modf.c
Normal file
107
lib/libc/arm/gen/modf.c
Normal file
@ -0,0 +1,107 @@
|
||||
/*
|
||||
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Author: Chris G. Demetriou
|
||||
*
|
||||
* Permission to use, copy, modify and distribute this software and
|
||||
* its documentation is hereby granted, provided that both the copyright
|
||||
* notice and this permission notice appear in all copies of the
|
||||
* software, derivative works or modified versions, and any portions
|
||||
* thereof, and that both notices appear in supporting documentation.
|
||||
*
|
||||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
||||
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
||||
*
|
||||
* Carnegie Mellon requests users of this software to return to
|
||||
*
|
||||
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
||||
* School of Computer Science
|
||||
* Carnegie Mellon University
|
||||
* Pittsburgh PA 15213-3890
|
||||
*
|
||||
* any improvements or extensions that they make and grant Carnegie the
|
||||
* rights to redistribute these changes.
|
||||
*
|
||||
* $NetBSD: modf.c,v 1.1 1995/02/10 17:50:25 cgd Exp $
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <errno.h>
|
||||
#include <math.h>
|
||||
#include <machine/ieee.h>
|
||||
|
||||
/*
|
||||
* double modf(double val, double *iptr)
|
||||
* returns: f and i such that |f| < 1.0, (f + i) = val, and
|
||||
* sign(f) == sign(i) == sign(val).
|
||||
*
|
||||
* Beware signedness when doing subtraction, and also operand size!
|
||||
*/
|
||||
double
|
||||
modf(val, iptr)
|
||||
double val, *iptr;
|
||||
{
|
||||
union doub {
|
||||
double v;
|
||||
struct ieee_double s;
|
||||
} u, v;
|
||||
u_int64_t frac;
|
||||
|
||||
/*
|
||||
* If input is Inf or NaN, return it and leave i alone.
|
||||
*/
|
||||
u.v = val;
|
||||
if (u.s.dbl_exp == DBL_EXP_INFNAN)
|
||||
return (u.v);
|
||||
|
||||
/*
|
||||
* If input can't have a fractional part, return
|
||||
* (appropriately signed) zero, and make i be the input.
|
||||
*/
|
||||
if ((int)u.s.dbl_exp - DBL_EXP_BIAS > DBL_FRACBITS - 1) {
|
||||
*iptr = u.v;
|
||||
v.v = 0.0;
|
||||
v.s.dbl_sign = u.s.dbl_sign;
|
||||
return (v.v);
|
||||
}
|
||||
|
||||
/*
|
||||
* If |input| < 1.0, return it, and set i to the appropriately
|
||||
* signed zero.
|
||||
*/
|
||||
if (u.s.dbl_exp < DBL_EXP_BIAS) {
|
||||
v.v = 0.0;
|
||||
v.s.dbl_sign = u.s.dbl_sign;
|
||||
*iptr = v.v;
|
||||
return (u.v);
|
||||
}
|
||||
|
||||
/*
|
||||
* There can be a fractional part of the input.
|
||||
* If you look at the math involved for a few seconds, it's
|
||||
* plain to see that the integral part is the input, with the
|
||||
* low (DBL_FRACBITS - (exponent - DBL_EXP_BIAS)) bits zeroed,
|
||||
* the the fractional part is the part with the rest of the
|
||||
* bits zeroed. Just zeroing the high bits to get the
|
||||
* fractional part would yield a fraction in need of
|
||||
* normalization. Therefore, we take the easy way out, and
|
||||
* just use subtraction to get the fractional part.
|
||||
*/
|
||||
v.v = u.v;
|
||||
/* Zero the low bits of the fraction, the sleazy way. */
|
||||
frac = ((u_int64_t)v.s.dbl_frach << 32) + v.s.dbl_fracl;
|
||||
frac >>= DBL_FRACBITS - (u.s.dbl_exp - DBL_EXP_BIAS);
|
||||
frac <<= DBL_FRACBITS - (u.s.dbl_exp - DBL_EXP_BIAS);
|
||||
v.s.dbl_fracl = frac & 0xffffffff;
|
||||
v.s.dbl_frach = frac >> 32;
|
||||
*iptr = v.v;
|
||||
|
||||
u.v -= v.v;
|
||||
u.s.dbl_sign = v.s.dbl_sign;
|
||||
return (u.v);
|
||||
}
|
132
lib/libc/arm/gen/setjmp.S
Normal file
132
lib/libc/arm/gen/setjmp.S
Normal file
@ -0,0 +1,132 @@
|
||||
/* $NetBSD: setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1997 Mark Brinicombe
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE 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("$FreeBSD$");
|
||||
/*
|
||||
* C library -- setjmp, longjmp
|
||||
*
|
||||
* longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* setjmp(a)
|
||||
* by restoring registers from the stack.
|
||||
* The previous signal state is restored.
|
||||
*/
|
||||
|
||||
#define SOFTFLOAT /* XXX */
|
||||
ENTRY(setjmp)
|
||||
/* Block all signals and retrieve the old signal mask */
|
||||
stmfd sp!, {r0, r14}
|
||||
mov r0, #0x00000000
|
||||
|
||||
bl PIC_SYM(_C_LABEL(sigblock), PLT)
|
||||
mov r1, r0
|
||||
|
||||
ldmfd sp!, {r0, r14}
|
||||
|
||||
/* Store signal mask */
|
||||
str r1, [r0, #(25 * 4)]
|
||||
|
||||
ldr r1, .Lsetjmp_magic
|
||||
str r1, [r0], #4
|
||||
|
||||
#ifdef SOFTFLOAT
|
||||
add r0, r0, #52
|
||||
#else
|
||||
/* Store fp registers */
|
||||
sfm f4, 4, [r0], #48
|
||||
/* Store fpsr */
|
||||
rfs r1
|
||||
str r1, [r0], #0x0004
|
||||
#endif /*SOFTFLOAT*/
|
||||
/* Store integer registers */
|
||||
stmia r0, {r4-r14}
|
||||
mov r0, #0x00000000
|
||||
mov r15, r14
|
||||
|
||||
.Lsetjmp_magic:
|
||||
.word _JB_MAGIC_SETJMP
|
||||
|
||||
|
||||
.weak _C_LABEL(longjmp)
|
||||
.set _C_LABEL(longjmp), _C_LABEL(__longjmp)
|
||||
ENTRY(__longjmp)
|
||||
ldr r2, .Lsetjmp_magic
|
||||
ldr r3, [r0]
|
||||
teq r2, r3
|
||||
bne botch
|
||||
|
||||
/* Fetch signal mask */
|
||||
ldr r2, [r0, #(25 * 4)]
|
||||
|
||||
/* Set signal mask */
|
||||
stmfd sp!, {r0, r1, r14}
|
||||
sub sp, sp, #4 /* align the stack */
|
||||
|
||||
mov r0, r2
|
||||
bl PIC_SYM(_C_LABEL(sigsetmask), PLT)
|
||||
|
||||
add sp, sp, #4 /* unalign the stack */
|
||||
ldmfd sp!, {r0, r1, r14}
|
||||
|
||||
add r0, r0, #4
|
||||
#ifdef SOFTFLOAT
|
||||
add r0, r0, #52
|
||||
#else
|
||||
/* Restore fp registers */
|
||||
lfm f4, 4, [r0], #48
|
||||
/* Restore FPSR */
|
||||
ldr r4, [r0], #0x0004
|
||||
wfs r4
|
||||
#endif /* SOFTFLOAT */
|
||||
/* Restore integer registers */
|
||||
ldmia r0, {r4-r14}
|
||||
|
||||
/* Validate sp and r14 */
|
||||
teq sp, #0
|
||||
teqne r14, #0
|
||||
beq botch
|
||||
|
||||
/* Set return value */
|
||||
|
||||
mov r0, r1
|
||||
teq r0, #0x00000000
|
||||
moveq r0, #0x00000001
|
||||
mov r15, r14
|
||||
|
||||
/* validation failed, die die die. */
|
||||
botch:
|
||||
bl PIC_SYM(_C_LABEL(longjmperror), PLT)
|
||||
bl PIC_SYM(_C_LABEL(abort), PLT)
|
||||
b . - 8 /* Cannot get here */
|
78
lib/libc/arm/gen/signalcontext.c
Normal file
78
lib/libc/arm/gen/signalcontext.c
Normal file
@ -0,0 +1,78 @@
|
||||
/*-
|
||||
* Copyright (c) 2004 Olivier Houchard
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/signal.h>
|
||||
#include <sys/ucontext.h>
|
||||
|
||||
#include <machine/frame.h>
|
||||
#include <machine/sigframe.h>
|
||||
|
||||
#include <errno.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <strings.h>
|
||||
#include <signal.h>
|
||||
|
||||
__weak_reference(__signalcontext, signalcontext);
|
||||
|
||||
extern void _ctx_start(void);
|
||||
|
||||
int
|
||||
__signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func)
|
||||
{
|
||||
struct sigframe *sfp;
|
||||
__greg_t *gr = ucp->uc_mcontext.__gregs;
|
||||
unsigned int *sp;
|
||||
mcontext_t *mc;
|
||||
|
||||
mc = &ucp->uc_mcontext;
|
||||
sp = (unsigned int *)
|
||||
(((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & ~7);
|
||||
|
||||
sfp = (struct sigframe *)sp - 1;
|
||||
|
||||
bzero(sfp, sizeof(*sfp));
|
||||
bcopy(ucp, &sfp->sf_uc, sizeof(*ucp));
|
||||
sfp->sf_si.si_signo = sig;
|
||||
|
||||
gr[_REG_SP] = (__greg_t)sp;
|
||||
/* Wipe out frame pointer. */
|
||||
gr[_REG_FP] = 0;
|
||||
/* Arrange for return via the trampoline code. */
|
||||
gr[_REG_LR] = (__greg_t)_ctx_start;
|
||||
gr[_REG_PC] = (__greg_t)func;
|
||||
gr[_REG_R0] = (__greg_t)ucp;
|
||||
|
||||
ucp->uc_link = &sfp->sf_uc;
|
||||
sigdelset(&ucp->uc_sigmask, sig);
|
||||
|
||||
return (0);
|
||||
}
|
61
lib/libc/arm/gen/sigsetjmp.S
Normal file
61
lib/libc/arm/gen/sigsetjmp.S
Normal file
@ -0,0 +1,61 @@
|
||||
/* $NetBSD: sigsetjmp.S,v 1.3 2002/08/17 19:54:30 thorpej Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1997 Mark Brinicombe
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE 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("$FreeBSD$");
|
||||
|
||||
/*
|
||||
* C library -- sigsetjmp, siglongjmp
|
||||
*
|
||||
* longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* setjmp(a, m)
|
||||
* by restoring registers from the stack.
|
||||
* The previous signal state is restored.
|
||||
*/
|
||||
|
||||
ENTRY(sigsetjmp)
|
||||
teq r1, #0
|
||||
beq PIC_SYM(_C_LABEL(_setjmp), PLT)
|
||||
b PIC_SYM(_C_LABEL(setjmp), PLT)
|
||||
|
||||
.L_setjmp_magic:
|
||||
.word _JB_MAGIC__SETJMP
|
||||
|
||||
ENTRY(siglongjmp)
|
||||
ldr r2, .L_setjmp_magic
|
||||
ldr r3, [r0]
|
||||
teq r2, r3
|
||||
beq PIC_SYM(_C_LABEL(_longjmp), PLT)
|
||||
b PIC_SYM(_C_LABEL(longjmp), PLT)
|
4
lib/libc/arm/net/Makefile.inc
Normal file
4
lib/libc/arm/net/Makefile.inc
Normal file
@ -0,0 +1,4 @@
|
||||
# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93
|
||||
# $FreeBSD$
|
||||
|
||||
SRCS+= ntohl.S ntohs.S htonl.S htons.S
|
48
lib/libc/arm/net/htonl.S
Normal file
48
lib/libc/arm/net/htonl.S
Normal file
@ -0,0 +1,48 @@
|
||||
/* $NetBSD: byte_swap_4.S,v 1.2 2003/04/05 23:08:51 bjh21 Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Neil A. Carson
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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(_C_LABEL(htonl))
|
||||
_PROF_PROLOGUE
|
||||
eor r1, r0, r0, ror #16
|
||||
bic r1, r1, #0x00FF0000
|
||||
mov r0, r0, ror #8
|
||||
eor r0, r0, r1, lsr #8
|
||||
mov pc, lr
|
47
lib/libc/arm/net/htons.S
Normal file
47
lib/libc/arm/net/htons.S
Normal file
@ -0,0 +1,47 @@
|
||||
/* $NetBSD: byte_swap_2.S,v 1.3 2003/04/05 23:08:51 bjh21 Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Charles M. Hannum.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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(_C_LABEL(htons))
|
||||
_PROF_PROLOGUE
|
||||
and r1, r0, #0xff
|
||||
mov r0, r0, lsr #8
|
||||
orr r0, r0, r1, lsl #8
|
||||
mov pc, lr
|
48
lib/libc/arm/net/ntohl.S
Normal file
48
lib/libc/arm/net/ntohl.S
Normal file
@ -0,0 +1,48 @@
|
||||
/* $NetBSD: byte_swap_4.S,v 1.2 2003/04/05 23:08:51 bjh21 Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Neil A. Carson
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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(_C_LABEL(ntohl))
|
||||
_PROF_PROLOGUE
|
||||
eor r1, r0, r0, ror #16
|
||||
bic r1, r1, #0x00FF0000
|
||||
mov r0, r0, ror #8
|
||||
eor r0, r0, r1, lsr #8
|
||||
mov pc, lr
|
47
lib/libc/arm/net/ntohs.S
Normal file
47
lib/libc/arm/net/ntohs.S
Normal file
@ -0,0 +1,47 @@
|
||||
/* $NetBSD: byte_swap_2.S,v 1.3 2003/04/05 23:08:51 bjh21 Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Charles M. Hannum.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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(_C_LABEL(ntohs))
|
||||
_PROF_PROLOGUE
|
||||
and r1, r0, #0xff
|
||||
mov r0, r0, lsr #8
|
||||
orr r0, r0, r1, lsl #8
|
||||
mov pc, lr
|
101
lib/libc/arm/softfloat/arm-gcc.h
Normal file
101
lib/libc/arm/softfloat/arm-gcc.h
Normal file
@ -0,0 +1,101 @@
|
||||
/* $NetBSD: arm-gcc.h,v 1.2 2001/02/21 18:09:25 bjh21 Exp $ */
|
||||
/* $FreeBSD$ */
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#ifdef __ARMEB__
|
||||
#define BIGENDIAN
|
||||
#else
|
||||
#define LITTLEENDIAN
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
The macro `BITS64' can be defined to indicate that 64-bit integer types are
|
||||
supported by the compiler.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#define BITS64
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Each of the following `typedef's defines the most convenient type that holds
|
||||
integers of at least as many bits as specified. For example, `uint8' should
|
||||
be the most convenient type that can hold unsigned integers of as many as
|
||||
8 bits. The `flag' type must be able to hold either a 0 or 1. For most
|
||||
implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
|
||||
to the same as `int'.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
typedef int flag;
|
||||
typedef int uint8;
|
||||
typedef int int8;
|
||||
typedef int uint16;
|
||||
typedef int int16;
|
||||
typedef unsigned int uint32;
|
||||
typedef signed int int32;
|
||||
#ifdef BITS64
|
||||
typedef unsigned long long int uint64;
|
||||
typedef signed long long int int64;
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Each of the following `typedef's defines a type that holds integers
|
||||
of _exactly_ the number of bits specified. For instance, for most
|
||||
implementation of C, `bits16' and `sbits16' should be `typedef'ed to
|
||||
`unsigned short int' and `signed short int' (or `short int'), respectively.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
typedef unsigned char bits8;
|
||||
typedef signed char sbits8;
|
||||
typedef unsigned short int bits16;
|
||||
typedef signed short int sbits16;
|
||||
typedef unsigned int bits32;
|
||||
typedef signed int sbits32;
|
||||
#ifdef BITS64
|
||||
typedef unsigned long long int bits64;
|
||||
typedef signed long long int sbits64;
|
||||
#endif
|
||||
|
||||
#ifdef BITS64
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
The `LIT64' macro takes as its argument a textual integer literal and
|
||||
if necessary ``marks'' the literal as having a 64-bit integer type.
|
||||
For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
|
||||
appended with the letters `LL' standing for `long long', which is `gcc's
|
||||
name for the 64-bit integer type. Some compilers may allow `LIT64' to be
|
||||
defined as the identity macro: `#define LIT64( a ) a'.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#define LIT64( a ) a##LL
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
The macro `INLINE' can be used before functions that should be inlined. If
|
||||
a compiler does not support explicit inlining, this macro should be defined
|
||||
to be `static'.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#define INLINE static __inline
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
The ARM FPA is odd in that it stores doubles high-order word first, no matter
|
||||
what the endianness of the CPU. VFP is sane.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#if defined(SOFTFLOAT_FOR_GCC)
|
||||
#if defined(__VFP_FP__) || defined(__ARMEB__)
|
||||
#define FLOAT64_DEMANGLE(a) (a)
|
||||
#define FLOAT64_MANGLE(a) (a)
|
||||
#else
|
||||
#define FLOAT64_DEMANGLE(a) (((a) << 32) | ((a) >> 32))
|
||||
#define FLOAT64_MANGLE(a) FLOAT64_DEMANGLE(a)
|
||||
#endif
|
||||
#endif
|
49
lib/libc/arm/softfloat/milieu.h
Normal file
49
lib/libc/arm/softfloat/milieu.h
Normal file
@ -0,0 +1,49 @@
|
||||
/* $NetBSD: milieu.h,v 1.1 2000/12/29 20:13:54 bjh21 Exp $ */
|
||||
/* $FreeBSD$ */
|
||||
|
||||
/*
|
||||
===============================================================================
|
||||
|
||||
This C header file is part of the SoftFloat IEC/IEEE Floating-point
|
||||
Arithmetic Package, Release 2a.
|
||||
|
||||
Written by John R. Hauser. This work was made possible in part by the
|
||||
International Computer Science Institute, located at Suite 600, 1947 Center
|
||||
Street, Berkeley, California 94704. Funding was partially provided by the
|
||||
National Science Foundation under grant MIP-9311980. The original version
|
||||
of this code was written as part of a project to build a fixed-point vector
|
||||
processor in collaboration with the University of California at Berkeley,
|
||||
overseen by Profs. Nelson Morgan and John Wawrzynek. More information
|
||||
is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/
|
||||
arithmetic/SoftFloat.html'.
|
||||
|
||||
THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
|
||||
has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
|
||||
TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
|
||||
PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
|
||||
AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
|
||||
|
||||
Derivative works are acceptable, even for commercial purposes, so long as
|
||||
(1) they include prominent notice that the work is derivative, and (2) they
|
||||
include prominent notice akin to these four paragraphs for those parts of
|
||||
this code that are retained.
|
||||
|
||||
===============================================================================
|
||||
*/
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Include common integer types and flags.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
#include "arm-gcc.h"
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Symbolic Boolean literals.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
enum {
|
||||
FALSE = 0,
|
||||
TRUE = 1
|
||||
};
|
313
lib/libc/arm/softfloat/softfloat.h
Normal file
313
lib/libc/arm/softfloat/softfloat.h
Normal file
@ -0,0 +1,313 @@
|
||||
/* $NetBSD: softfloat.h,v 1.6 2002/05/12 13:12:46 bjh21 Exp $ */
|
||||
/* $FreeBSD$ */
|
||||
|
||||
/* This is a derivative work. */
|
||||
|
||||
/*
|
||||
===============================================================================
|
||||
|
||||
This C header file is part of the SoftFloat IEC/IEEE Floating-point
|
||||
Arithmetic Package, Release 2a.
|
||||
|
||||
Written by John R. Hauser. This work was made possible in part by the
|
||||
International Computer Science Institute, located at Suite 600, 1947 Center
|
||||
Street, Berkeley, California 94704. Funding was partially provided by the
|
||||
National Science Foundation under grant MIP-9311980. The original version
|
||||
of this code was written as part of a project to build a fixed-point vector
|
||||
processor in collaboration with the University of California at Berkeley,
|
||||
overseen by Profs. Nelson Morgan and John Wawrzynek. More information
|
||||
is available through the Web page `http://HTTP.CS.Berkeley.EDU/~jhauser/
|
||||
arithmetic/SoftFloat.html'.
|
||||
|
||||
THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort
|
||||
has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
|
||||
TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO
|
||||
PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
|
||||
AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
|
||||
|
||||
Derivative works are acceptable, even for commercial purposes, so long as
|
||||
(1) they include prominent notice that the work is derivative, and (2) they
|
||||
include prominent notice akin to these four paragraphs for those parts of
|
||||
this code that are retained.
|
||||
|
||||
===============================================================================
|
||||
*/
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
The macro `FLOATX80' must be defined to enable the extended double-precision
|
||||
floating-point format `floatx80'. If this macro is not defined, the
|
||||
`floatx80' type will not be defined, and none of the functions that either
|
||||
input or output the `floatx80' type will be defined. The same applies to
|
||||
the `FLOAT128' macro and the quadruple-precision format `float128'.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
/* #define FLOATX80 */
|
||||
/* #define FLOAT128 */
|
||||
|
||||
#include <machine/ieeefp.h>
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE floating-point types.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
typedef unsigned int float32;
|
||||
typedef unsigned long long float64;
|
||||
#ifdef FLOATX80
|
||||
typedef struct {
|
||||
unsigned short high;
|
||||
unsigned long long low;
|
||||
} floatx80;
|
||||
#endif
|
||||
#ifdef FLOAT128
|
||||
typedef struct {
|
||||
unsigned long long high, low;
|
||||
} float128;
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE floating-point underflow tininess-detection mode.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
extern int float_detect_tininess;
|
||||
enum {
|
||||
float_tininess_after_rounding = 0,
|
||||
float_tininess_before_rounding = 1
|
||||
};
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE floating-point rounding mode.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
extern fp_rnd_t float_rounding_mode;
|
||||
enum {
|
||||
float_round_nearest_even = FP_RN,
|
||||
float_round_to_zero = FP_RZ,
|
||||
float_round_down = FP_RM,
|
||||
float_round_up = FP_RP
|
||||
};
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE floating-point exception flags.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
extern fp_except float_exception_flags;
|
||||
extern fp_except float_exception_mask;
|
||||
enum {
|
||||
float_flag_inexact = FP_X_IMP,
|
||||
float_flag_underflow = FP_X_UFL,
|
||||
float_flag_overflow = FP_X_OFL,
|
||||
float_flag_divbyzero = FP_X_DZ,
|
||||
float_flag_invalid = FP_X_INV
|
||||
};
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Routine to raise any or all of the software IEC/IEEE floating-point
|
||||
exception flags.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
void float_raise( fp_except );
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE integer-to-floating-point conversion routines.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
float32 int32_to_float32( int );
|
||||
float64 int32_to_float64( int );
|
||||
#ifdef FLOATX80
|
||||
floatx80 int32_to_floatx80( int );
|
||||
#endif
|
||||
#ifdef FLOAT128
|
||||
float128 int32_to_float128( int );
|
||||
#endif
|
||||
#ifndef SOFTFLOAT_FOR_GCC /* __floatdi?f is in libgcc2.c */
|
||||
float32 int64_to_float32( long long );
|
||||
float64 int64_to_float64( long long );
|
||||
#ifdef FLOATX80
|
||||
floatx80 int64_to_floatx80( long long );
|
||||
#endif
|
||||
#ifdef FLOAT128
|
||||
float128 int64_to_float128( long long );
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE single-precision conversion routines.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
int float32_to_int32( float32 );
|
||||
int float32_to_int32_round_to_zero( float32 );
|
||||
#if defined(SOFTFLOAT_FOR_GCC) && defined(SOFTFLOAT_NEED_FIXUNS)
|
||||
unsigned int float32_to_uint32_round_to_zero( float32 );
|
||||
#endif
|
||||
#ifndef SOFTFLOAT_FOR_GCC /* __fix?fdi provided by libgcc2.c */
|
||||
long long float32_to_int64( float32 );
|
||||
long long float32_to_int64_round_to_zero( float32 );
|
||||
#endif
|
||||
float64 float32_to_float64( float32 );
|
||||
#ifdef FLOATX80
|
||||
floatx80 float32_to_floatx80( float32 );
|
||||
#endif
|
||||
#ifdef FLOAT128
|
||||
float128 float32_to_float128( float32 );
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE single-precision operations.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
float32 float32_round_to_int( float32 );
|
||||
float32 float32_add( float32, float32 );
|
||||
float32 float32_sub( float32, float32 );
|
||||
float32 float32_mul( float32, float32 );
|
||||
float32 float32_div( float32, float32 );
|
||||
float32 float32_rem( float32, float32 );
|
||||
float32 float32_sqrt( float32 );
|
||||
int float32_eq( float32, float32 );
|
||||
int float32_le( float32, float32 );
|
||||
int float32_lt( float32, float32 );
|
||||
int float32_eq_signaling( float32, float32 );
|
||||
int float32_le_quiet( float32, float32 );
|
||||
int float32_lt_quiet( float32, float32 );
|
||||
#ifndef SOFTFLOAT_FOR_GCC
|
||||
int float32_is_signaling_nan( float32 );
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE double-precision conversion routines.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
int float64_to_int32( float64 );
|
||||
int float64_to_int32_round_to_zero( float64 );
|
||||
#if defined(SOFTFLOAT_FOR_GCC) && defined(SOFTFLOAT_NEED_FIXUNS)
|
||||
unsigned int float64_to_uint32_round_to_zero( float64 );
|
||||
#endif
|
||||
#ifndef SOFTFLOAT_FOR_GCC /* __fix?fdi provided by libgcc2.c */
|
||||
long long float64_to_int64( float64 );
|
||||
long long float64_to_int64_round_to_zero( float64 );
|
||||
#endif
|
||||
float32 float64_to_float32( float64 );
|
||||
#ifdef FLOATX80
|
||||
floatx80 float64_to_floatx80( float64 );
|
||||
#endif
|
||||
#ifdef FLOAT128
|
||||
float128 float64_to_float128( float64 );
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE double-precision operations.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
float64 float64_round_to_int( float64 );
|
||||
float64 float64_add( float64, float64 );
|
||||
float64 float64_sub( float64, float64 );
|
||||
float64 float64_mul( float64, float64 );
|
||||
float64 float64_div( float64, float64 );
|
||||
float64 float64_rem( float64, float64 );
|
||||
float64 float64_sqrt( float64 );
|
||||
int float64_eq( float64, float64 );
|
||||
int float64_le( float64, float64 );
|
||||
int float64_lt( float64, float64 );
|
||||
int float64_eq_signaling( float64, float64 );
|
||||
int float64_le_quiet( float64, float64 );
|
||||
int float64_lt_quiet( float64, float64 );
|
||||
#ifndef SOFTFLOAT_FOR_GCC
|
||||
int float64_is_signaling_nan( float64 );
|
||||
#endif
|
||||
|
||||
#ifdef FLOATX80
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE extended double-precision conversion routines.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
int floatx80_to_int32( floatx80 );
|
||||
int floatx80_to_int32_round_to_zero( floatx80 );
|
||||
long long floatx80_to_int64( floatx80 );
|
||||
long long floatx80_to_int64_round_to_zero( floatx80 );
|
||||
float32 floatx80_to_float32( floatx80 );
|
||||
float64 floatx80_to_float64( floatx80 );
|
||||
#ifdef FLOAT128
|
||||
float128 floatx80_to_float128( floatx80 );
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE extended double-precision rounding precision. Valid
|
||||
values are 32, 64, and 80.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
extern int floatx80_rounding_precision;
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE extended double-precision operations.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
floatx80 floatx80_round_to_int( floatx80 );
|
||||
floatx80 floatx80_add( floatx80, floatx80 );
|
||||
floatx80 floatx80_sub( floatx80, floatx80 );
|
||||
floatx80 floatx80_mul( floatx80, floatx80 );
|
||||
floatx80 floatx80_div( floatx80, floatx80 );
|
||||
floatx80 floatx80_rem( floatx80, floatx80 );
|
||||
floatx80 floatx80_sqrt( floatx80 );
|
||||
int floatx80_eq( floatx80, floatx80 );
|
||||
int floatx80_le( floatx80, floatx80 );
|
||||
int floatx80_lt( floatx80, floatx80 );
|
||||
int floatx80_eq_signaling( floatx80, floatx80 );
|
||||
int floatx80_le_quiet( floatx80, floatx80 );
|
||||
int floatx80_lt_quiet( floatx80, floatx80 );
|
||||
int floatx80_is_signaling_nan( floatx80 );
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef FLOAT128
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE quadruple-precision conversion routines.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
int float128_to_int32( float128 );
|
||||
int float128_to_int32_round_to_zero( float128 );
|
||||
long long float128_to_int64( float128 );
|
||||
long long float128_to_int64_round_to_zero( float128 );
|
||||
float32 float128_to_float32( float128 );
|
||||
float64 float128_to_float64( float128 );
|
||||
#ifdef FLOATX80
|
||||
floatx80 float128_to_floatx80( float128 );
|
||||
#endif
|
||||
|
||||
/*
|
||||
-------------------------------------------------------------------------------
|
||||
Software IEC/IEEE quadruple-precision operations.
|
||||
-------------------------------------------------------------------------------
|
||||
*/
|
||||
float128 float128_round_to_int( float128 );
|
||||
float128 float128_add( float128, float128 );
|
||||
float128 float128_sub( float128, float128 );
|
||||
float128 float128_mul( float128, float128 );
|
||||
float128 float128_div( float128, float128 );
|
||||
float128 float128_rem( float128, float128 );
|
||||
float128 float128_sqrt( float128 );
|
||||
int float128_eq( float128, float128 );
|
||||
int float128_le( float128, float128 );
|
||||
int float128_lt( float128, float128 );
|
||||
int float128_eq_signaling( float128, float128 );
|
||||
int float128_le_quiet( float128, float128 );
|
||||
int float128_lt_quiet( float128, float128 );
|
||||
int float128_is_signaling_nan( float128 );
|
||||
|
||||
#endif
|
||||
|
4
lib/libc/arm/stdlib/Makefile.inc
Normal file
4
lib/libc/arm/stdlib/Makefile.inc
Normal file
@ -0,0 +1,4 @@
|
||||
# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93
|
||||
# $FreeBSD$
|
||||
|
||||
MDSRCS+=abs.c div.c labs.c ldiv.c
|
5
lib/libc/arm/stdlib/gdtoa.mk
Normal file
5
lib/libc/arm/stdlib/gdtoa.mk
Normal file
@ -0,0 +1,5 @@
|
||||
# $FreeBSD$
|
||||
|
||||
# Long double is 80 bits
|
||||
GDTOASRCS+=strtopx.c
|
||||
MDSRCS+=machdep_ldisx.c
|
7
lib/libc/arm/string/Makefile.inc
Normal file
7
lib/libc/arm/string/Makefile.inc
Normal file
@ -0,0 +1,7 @@
|
||||
# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93
|
||||
# $FreeBSD$
|
||||
|
||||
MDSRCS+=bcmp.c bcopy.S bzero.S ffs.S index.c memchr.c memcmp.S memcpy.S \
|
||||
memmove.S memset.S rindex.c strcat.c strchr.c strcmp.S strcpy.c \
|
||||
strlen.c strncmp.S strrchr.c swab.c wcschr.c wcscmp.c wcslen.c \
|
||||
wmemchr.c
|
6
lib/libc/arm/string/bcopy.S
Normal file
6
lib/libc/arm/string/bcopy.S
Normal file
@ -0,0 +1,6 @@
|
||||
/* $NetBSD: bcopy.S,v 1.3 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#define _BCOPY
|
||||
#include "memmove.S"
|
44
lib/libc/arm/string/bzero.S
Normal file
44
lib/libc/arm/string/bzero.S
Normal file
@ -0,0 +1,44 @@
|
||||
/* $NetBSD: bzero.S,v 1.3 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Neil A. Carson and Mark Brinicombe
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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("$FreeBSD$");
|
||||
|
||||
#define _BZERO
|
||||
#include "memset.S"
|
76
lib/libc/arm/string/ffs.S
Normal file
76
lib/libc/arm/string/ffs.S
Normal file
@ -0,0 +1,76 @@
|
||||
/* $NetBSD: ffs.S,v 1.5 2003/04/05 23:08:52 bjh21 Exp $ */
|
||||
/*
|
||||
* Copyright (c) 2001 Christopher Gilbert
|
||||
* 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.
|
||||
* 3. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* 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 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("$FreeBSD$");
|
||||
|
||||
/*
|
||||
* ffs - find first set bit, this algorithm isolates the first set
|
||||
* bit, then multiplies the number by 0x0450fbaf which leaves the top
|
||||
* 6 bits as an index into the table. This algorithm should be a win
|
||||
* over the checking each bit in turn as per the C compiled version.
|
||||
*
|
||||
* under ARMv5 there's an instruction called CLZ (count leading Zero's) that
|
||||
* could be used
|
||||
*
|
||||
* This is the ffs algorithm devised by d.seal and posted to comp.sys.arm on
|
||||
* 16 Feb 1994.
|
||||
*/
|
||||
|
||||
ENTRY(ffs)
|
||||
/* Standard trick to isolate bottom bit in r0 or 0 if r0 = 0 on entry */
|
||||
rsb r1, r0, #0
|
||||
ands r0, r0, r1
|
||||
/*
|
||||
* now r0 has at most one set bit, call this X
|
||||
* if X = 0, all further instructions are skipped
|
||||
*/
|
||||
adrne r2, .L_ffs_table
|
||||
orrne r0, r0, r0, lsl #4 /* r0 = X * 0x11 */
|
||||
orrne r0, r0, r0, lsl #6 /* r0 = X * 0x451 */
|
||||
rsbne r0, r0, r0, lsl #16 /* r0 = X * 0x0450fbaf */
|
||||
|
||||
/* now lookup in table indexed on top 6 bits of r0 */
|
||||
ldrneb r0, [ r2, r0, lsr #26 ]
|
||||
|
||||
mov pc, lr
|
||||
.text;
|
||||
.type .L_ffs_table, _ASM_TYPE_OBJECT;
|
||||
.L_ffs_table:
|
||||
/* 0 1 2 3 4 5 6 7 */
|
||||
.byte 0, 1, 2, 13, 3, 7, 0, 14 /* 0- 7 */
|
||||
.byte 4, 0, 8, 0, 0, 0, 0, 15 /* 8-15 */
|
||||
.byte 11, 5, 0, 0, 9, 0, 0, 26 /* 16-23 */
|
||||
.byte 0, 0, 0, 0, 0, 22, 28, 16 /* 24-31 */
|
||||
.byte 32, 12, 6, 0, 0, 0, 0, 0 /* 32-39 */
|
||||
.byte 10, 0, 0, 25, 0, 0, 21, 27 /* 40-47 */
|
||||
.byte 31, 0, 0, 0, 0, 24, 0, 20 /* 48-55 */
|
||||
.byte 30, 0, 23, 19, 29, 18, 17, 0 /* 56-63 */
|
180
lib/libc/arm/string/memcmp.S
Normal file
180
lib/libc/arm/string/memcmp.S
Normal file
@ -0,0 +1,180 @@
|
||||
/* $NetBSD: memcmp.S,v 1.3 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright 2003 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Written by Steve C. Woodford for Wasabi Systems, Inc.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed for the NetBSD Project by
|
||||
* Wasabi Systems, Inc.
|
||||
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
|
||||
* 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.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2002 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 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.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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(memcmp)
|
||||
mov ip, r0
|
||||
#if defined(_KERNEL) && !defined(_STANDALONE)
|
||||
cmp r2, #0x06
|
||||
beq .Lmemcmp_6bytes
|
||||
#endif
|
||||
mov r0, #0x00
|
||||
|
||||
/* Are both addresses aligned the same way? */
|
||||
cmp r2, #0x00
|
||||
eornes r3, ip, r1
|
||||
moveq pc, lr /* len == 0, or same addresses! */
|
||||
tst r3, #0x03
|
||||
subne r2, r2, #0x01
|
||||
bne .Lmemcmp_bytewise2 /* Badly aligned. Do it the slow way */
|
||||
|
||||
/* Word-align the addresses, if necessary */
|
||||
and r3, r1, #0x03
|
||||
rsbs r3, r3, #0x03
|
||||
add r3, r3, r3, lsl #1
|
||||
addne pc, pc, r3, lsl #3
|
||||
nop
|
||||
|
||||
/* Compare up to 3 bytes */
|
||||
ldrb r0, [ip], #0x01
|
||||
ldrb r3, [r1], #0x01
|
||||
subs r0, r0, r3
|
||||
movne pc, lr
|
||||
subs r2, r2, #0x01
|
||||
moveq pc, lr
|
||||
|
||||
/* Compare up to 2 bytes */
|
||||
ldrb r0, [ip], #0x01
|
||||
ldrb r3, [r1], #0x01
|
||||
subs r0, r0, r3
|
||||
movne pc, lr
|
||||
subs r2, r2, #0x01
|
||||
moveq pc, lr
|
||||
|
||||
/* Compare 1 byte */
|
||||
ldrb r0, [ip], #0x01
|
||||
ldrb r3, [r1], #0x01
|
||||
subs r0, r0, r3
|
||||
movne pc, lr
|
||||
subs r2, r2, #0x01
|
||||
moveq pc, lr
|
||||
|
||||
/* Compare 4 bytes at a time, if possible */
|
||||
subs r2, r2, #0x04
|
||||
bcc .Lmemcmp_bytewise
|
||||
.Lmemcmp_word_aligned:
|
||||
ldr r0, [ip], #0x04
|
||||
ldr r3, [r1], #0x04
|
||||
subs r2, r2, #0x04
|
||||
cmpcs r0, r3
|
||||
beq .Lmemcmp_word_aligned
|
||||
sub r0, r0, r3
|
||||
|
||||
/* Correct for extra subtraction, and check if done */
|
||||
adds r2, r2, #0x04
|
||||
cmpeq r0, #0x00 /* If done, did all bytes match? */
|
||||
moveq pc, lr /* Yup. Just return */
|
||||
|
||||
/* Re-do the final word byte-wise */
|
||||
sub ip, ip, #0x04
|
||||
sub r1, r1, #0x04
|
||||
|
||||
.Lmemcmp_bytewise:
|
||||
add r2, r2, #0x03
|
||||
.Lmemcmp_bytewise2:
|
||||
ldrb r0, [ip], #0x01
|
||||
ldrb r3, [r1], #0x01
|
||||
subs r2, r2, #0x01
|
||||
cmpcs r0, r3
|
||||
beq .Lmemcmp_bytewise2
|
||||
sub r0, r0, r3
|
||||
mov pc, lr
|
||||
|
||||
#if defined(_KERNEL) && !defined(_STANDALONE)
|
||||
/*
|
||||
* 6 byte compares are very common, thanks to the network stack.
|
||||
* This code is hand-scheduled to reduce the number of stalls for
|
||||
* load results. Everything else being equal, this will be ~32%
|
||||
* faster than a byte-wise memcmp.
|
||||
*/
|
||||
.align 5
|
||||
.Lmemcmp_6bytes:
|
||||
ldrb r3, [r1, #0x00] /* r3 = b2#0 */
|
||||
ldrb r0, [ip, #0x00] /* r0 = b1#0 */
|
||||
ldrb r2, [r1, #0x01] /* r2 = b2#1 */
|
||||
subs r0, r0, r3 /* r0 = b1#0 - b2#0 */
|
||||
ldreqb r3, [ip, #0x01] /* r3 = b1#1 */
|
||||
movne pc, lr /* Return if mismatch on #0 */
|
||||
subs r0, r3, r2 /* r0 = b1#1 - b2#1 */
|
||||
ldreqb r3, [r1, #0x02] /* r3 = b2#2 */
|
||||
ldreqb r0, [ip, #0x02] /* r0 = b1#2 */
|
||||
movne pc, lr /* Return if mismatch on #1 */
|
||||
ldrb r2, [r1, #0x03] /* r2 = b2#3 */
|
||||
subs r0, r0, r3 /* r0 = b1#2 - b2#2 */
|
||||
ldreqb r3, [ip, #0x03] /* r3 = b1#3 */
|
||||
movne pc, lr /* Return if mismatch on #2 */
|
||||
subs r0, r3, r2 /* r0 = b1#3 - b2#3 */
|
||||
ldreqb r3, [r1, #0x04] /* r3 = b2#4 */
|
||||
ldreqb r0, [ip, #0x04] /* r0 = b1#4 */
|
||||
movne pc, lr /* Return if mismatch on #3 */
|
||||
ldrb r2, [r1, #0x05] /* r2 = b2#5 */
|
||||
subs r0, r0, r3 /* r0 = b1#4 - b2#4 */
|
||||
ldreqb r3, [ip, #0x05] /* r3 = b1#5 */
|
||||
movne pc, lr /* Return if mismatch on #4 */
|
||||
sub r0, r3, r2 /* r0 = b1#5 - b2#5 */
|
||||
mov pc, lr
|
||||
#endif
|
9
lib/libc/arm/string/memcpy.S
Normal file
9
lib/libc/arm/string/memcpy.S
Normal file
@ -0,0 +1,9 @@
|
||||
/* $NetBSD: memcpy.S,v 1.4 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#if !defined(__XSCALE__) || defined(_STANDALONE)
|
||||
#include "memcpy_arm.S"
|
||||
#else
|
||||
#include "memcpy_xscale.S"
|
||||
#endif
|
339
lib/libc/arm/string/memcpy_arm.S
Normal file
339
lib/libc/arm/string/memcpy_arm.S
Normal file
@ -0,0 +1,339 @@
|
||||
/* $NetBSD: memcpy_arm.S,v 1.1 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Neil A. Carson and Mark Brinicombe
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 is one fun bit of code ...
|
||||
* Some easy listening music is suggested while trying to understand this
|
||||
* code e.g. Iron Maiden
|
||||
*
|
||||
* For anyone attempting to understand it :
|
||||
*
|
||||
* The core code is implemented here with simple stubs for memcpy().
|
||||
*
|
||||
* All local labels are prefixed with Lmemcpy_
|
||||
* Following the prefix a label starting f is used in the forward copy code
|
||||
* while a label using b is used in the backwards copy code
|
||||
* The source and destination addresses determine whether a forward or
|
||||
* backward copy is performed.
|
||||
* Separate bits of code are used to deal with the following situations
|
||||
* for both the forward and backwards copy.
|
||||
* unaligned source address
|
||||
* unaligned destination address
|
||||
* Separate copy routines are used to produce an optimised result for each
|
||||
* of these cases.
|
||||
* The copy code will use LDM/STM instructions to copy up to 32 bytes at
|
||||
* a time where possible.
|
||||
*
|
||||
* Note: r12 (aka ip) can be trashed during the function along with
|
||||
* r0-r3 although r0-r2 have defined uses i.e. src, dest, len through out.
|
||||
* Additional registers are preserved prior to use i.e. r4, r5 & lr
|
||||
*
|
||||
* Apologies for the state of the comments ;-)
|
||||
*/
|
||||
/* LINTSTUB: Func: void *memcpy(void *dst, const void *src, size_t len) */
|
||||
ENTRY(memcpy)
|
||||
/* save leaf functions having to store this away */
|
||||
stmdb sp!, {r0, lr} /* memcpy() returns dest addr */
|
||||
|
||||
subs r2, r2, #4
|
||||
blt .Lmemcpy_l4 /* less than 4 bytes */
|
||||
ands r12, r0, #3
|
||||
bne .Lmemcpy_destul /* oh unaligned destination addr */
|
||||
ands r12, r1, #3
|
||||
bne .Lmemcpy_srcul /* oh unaligned source addr */
|
||||
|
||||
.Lmemcpy_t8:
|
||||
/* We have aligned source and destination */
|
||||
subs r2, r2, #8
|
||||
blt .Lmemcpy_l12 /* less than 12 bytes (4 from above) */
|
||||
subs r2, r2, #0x14
|
||||
blt .Lmemcpy_l32 /* less than 32 bytes (12 from above) */
|
||||
stmdb sp!, {r4} /* borrow r4 */
|
||||
|
||||
/* blat 32 bytes at a time */
|
||||
/* XXX for really big copies perhaps we should use more registers */
|
||||
.Lmemcpy_loop32:
|
||||
ldmia r1!, {r3, r4, r12, lr}
|
||||
stmia r0!, {r3, r4, r12, lr}
|
||||
ldmia r1!, {r3, r4, r12, lr}
|
||||
stmia r0!, {r3, r4, r12, lr}
|
||||
subs r2, r2, #0x20
|
||||
bge .Lmemcpy_loop32
|
||||
|
||||
cmn r2, #0x10
|
||||
ldmgeia r1!, {r3, r4, r12, lr} /* blat a remaining 16 bytes */
|
||||
stmgeia r0!, {r3, r4, r12, lr}
|
||||
subge r2, r2, #0x10
|
||||
ldmia sp!, {r4} /* return r4 */
|
||||
|
||||
.Lmemcpy_l32:
|
||||
adds r2, r2, #0x14
|
||||
|
||||
/* blat 12 bytes at a time */
|
||||
.Lmemcpy_loop12:
|
||||
ldmgeia r1!, {r3, r12, lr}
|
||||
stmgeia r0!, {r3, r12, lr}
|
||||
subges r2, r2, #0x0c
|
||||
bge .Lmemcpy_loop12
|
||||
|
||||
.Lmemcpy_l12:
|
||||
adds r2, r2, #8
|
||||
blt .Lmemcpy_l4
|
||||
|
||||
subs r2, r2, #4
|
||||
ldrlt r3, [r1], #4
|
||||
strlt r3, [r0], #4
|
||||
ldmgeia r1!, {r3, r12}
|
||||
stmgeia r0!, {r3, r12}
|
||||
subge r2, r2, #4
|
||||
|
||||
.Lmemcpy_l4:
|
||||
/* less than 4 bytes to go */
|
||||
adds r2, r2, #4
|
||||
#ifdef __APCS_26_
|
||||
ldmeqia sp!, {r0, pc}^ /* done */
|
||||
#else
|
||||
ldmeqia sp!, {r0, pc} /* done */
|
||||
#endif
|
||||
/* copy the crud byte at a time */
|
||||
cmp r2, #2
|
||||
ldrb r3, [r1], #1
|
||||
strb r3, [r0], #1
|
||||
ldrgeb r3, [r1], #1
|
||||
strgeb r3, [r0], #1
|
||||
ldrgtb r3, [r1], #1
|
||||
strgtb r3, [r0], #1
|
||||
ldmia sp!, {r0, pc}
|
||||
|
||||
/* erg - unaligned destination */
|
||||
.Lmemcpy_destul:
|
||||
rsb r12, r12, #4
|
||||
cmp r12, #2
|
||||
|
||||
/* align destination with byte copies */
|
||||
ldrb r3, [r1], #1
|
||||
strb r3, [r0], #1
|
||||
ldrgeb r3, [r1], #1
|
||||
strgeb r3, [r0], #1
|
||||
ldrgtb r3, [r1], #1
|
||||
strgtb r3, [r0], #1
|
||||
subs r2, r2, r12
|
||||
blt .Lmemcpy_l4 /* less the 4 bytes */
|
||||
|
||||
ands r12, r1, #3
|
||||
beq .Lmemcpy_t8 /* we have an aligned source */
|
||||
|
||||
/* erg - unaligned source */
|
||||
/* This is where it gets nasty ... */
|
||||
.Lmemcpy_srcul:
|
||||
bic r1, r1, #3
|
||||
ldr lr, [r1], #4
|
||||
cmp r12, #2
|
||||
bgt .Lmemcpy_srcul3
|
||||
beq .Lmemcpy_srcul2
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemcpy_srcul1loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemcpy_srcul1loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #8
|
||||
#else
|
||||
mov r3, lr, lsr #8
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #24
|
||||
mov r4, r4, lsl #8
|
||||
orr r4, r4, r5, lsr #24
|
||||
mov r5, r5, lsl #8
|
||||
orr r5, r5, r12, lsr #24
|
||||
mov r12, r12, lsl #8
|
||||
orr r12, r12, lr, lsr #24
|
||||
#else
|
||||
orr r3, r3, r4, lsl #24
|
||||
mov r4, r4, lsr #8
|
||||
orr r4, r4, r5, lsl #24
|
||||
mov r5, r5, lsr #8
|
||||
orr r5, r5, r12, lsl #24
|
||||
mov r12, r12, lsr #8
|
||||
orr r12, r12, lr, lsl #24
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemcpy_srcul1loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemcpy_srcul1l4
|
||||
|
||||
.Lmemcpy_srcul1loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #8
|
||||
#else
|
||||
mov r12, lr, lsr #8
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #24
|
||||
#else
|
||||
orr r12, r12, lr, lsl #24
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemcpy_srcul1loop4
|
||||
|
||||
.Lmemcpy_srcul1l4:
|
||||
sub r1, r1, #3
|
||||
b .Lmemcpy_l4
|
||||
|
||||
.Lmemcpy_srcul2:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemcpy_srcul2loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemcpy_srcul2loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #16
|
||||
#else
|
||||
mov r3, lr, lsr #16
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #16
|
||||
mov r4, r4, lsl #16
|
||||
orr r4, r4, r5, lsr #16
|
||||
mov r5, r5, lsl #16
|
||||
orr r5, r5, r12, lsr #16
|
||||
mov r12, r12, lsl #16
|
||||
orr r12, r12, lr, lsr #16
|
||||
#else
|
||||
orr r3, r3, r4, lsl #16
|
||||
mov r4, r4, lsr #16
|
||||
orr r4, r4, r5, lsl #16
|
||||
mov r5, r5, lsr #16
|
||||
orr r5, r5, r12, lsl #16
|
||||
mov r12, r12, lsr #16
|
||||
orr r12, r12, lr, lsl #16
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemcpy_srcul2loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemcpy_srcul2l4
|
||||
|
||||
.Lmemcpy_srcul2loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #16
|
||||
#else
|
||||
mov r12, lr, lsr #16
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #16
|
||||
#else
|
||||
orr r12, r12, lr, lsl #16
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemcpy_srcul2loop4
|
||||
|
||||
.Lmemcpy_srcul2l4:
|
||||
sub r1, r1, #2
|
||||
b .Lmemcpy_l4
|
||||
|
||||
.Lmemcpy_srcul3:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemcpy_srcul3loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemcpy_srcul3loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #24
|
||||
#else
|
||||
mov r3, lr, lsr #24
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #8
|
||||
mov r4, r4, lsl #24
|
||||
orr r4, r4, r5, lsr #8
|
||||
mov r5, r5, lsl #24
|
||||
orr r5, r5, r12, lsr #8
|
||||
mov r12, r12, lsl #24
|
||||
orr r12, r12, lr, lsr #8
|
||||
#else
|
||||
orr r3, r3, r4, lsl #8
|
||||
mov r4, r4, lsr #24
|
||||
orr r4, r4, r5, lsl #8
|
||||
mov r5, r5, lsr #24
|
||||
orr r5, r5, r12, lsl #8
|
||||
mov r12, r12, lsr #24
|
||||
orr r12, r12, lr, lsl #8
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemcpy_srcul3loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemcpy_srcul3l4
|
||||
|
||||
.Lmemcpy_srcul3loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #24
|
||||
#else
|
||||
mov r12, lr, lsr #24
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #8
|
||||
#else
|
||||
orr r12, r12, lr, lsl #8
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemcpy_srcul3loop4
|
||||
|
||||
.Lmemcpy_srcul3l4:
|
||||
sub r1, r1, #1
|
||||
b .Lmemcpy_l4
|
1783
lib/libc/arm/string/memcpy_xscale.S
Normal file
1783
lib/libc/arm/string/memcpy_xscale.S
Normal file
File diff suppressed because it is too large
Load Diff
589
lib/libc/arm/string/memmove.S
Normal file
589
lib/libc/arm/string/memmove.S
Normal file
@ -0,0 +1,589 @@
|
||||
/* $NetBSD: memmove.S,v 1.4 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Neil A. Carson and Mark Brinicombe
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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("$FreeBSD$");
|
||||
|
||||
#ifndef _BCOPY
|
||||
/* LINTSTUB: Func: void *memmove(void *, const void *, size_t) */
|
||||
ENTRY(memmove)
|
||||
#else
|
||||
/* bcopy = memcpy/memmove with arguments reversed. */
|
||||
/* LINTSTUB: Func: void bcopy(void *, void *, size_t) */
|
||||
ENTRY(bcopy)
|
||||
/* switch the source and destination registers */
|
||||
eor r0, r1, r0
|
||||
eor r1, r0, r1
|
||||
eor r0, r1, r0
|
||||
#endif
|
||||
/* Do the buffers overlap? */
|
||||
cmp r0, r1
|
||||
moveq pc, lr /* Bail now if src/dst are the same */
|
||||
subcc r3, r0, r1 /* if (dst > src) r3 = dst - src */
|
||||
subcs r3, r1, r0 /* if (src > dsr) r3 = src - dst */
|
||||
cmp r3, r2 /* if (r3 < len) we have an overlap */
|
||||
bcc PIC_SYM(_C_LABEL(memcpy), PLT)
|
||||
|
||||
/* Determine copy direction */
|
||||
cmp r1, r0
|
||||
bcc .Lmemmove_backwards
|
||||
|
||||
moveq r0, #0 /* Quick abort for len=0 */
|
||||
moveq pc, lr
|
||||
|
||||
stmdb sp!, {r0, lr} /* memmove() returns dest addr */
|
||||
subs r2, r2, #4
|
||||
blt .Lmemmove_fl4 /* less than 4 bytes */
|
||||
ands r12, r0, #3
|
||||
bne .Lmemmove_fdestul /* oh unaligned destination addr */
|
||||
ands r12, r1, #3
|
||||
bne .Lmemmove_fsrcul /* oh unaligned source addr */
|
||||
|
||||
.Lmemmove_ft8:
|
||||
/* We have aligned source and destination */
|
||||
subs r2, r2, #8
|
||||
blt .Lmemmove_fl12 /* less than 12 bytes (4 from above) */
|
||||
subs r2, r2, #0x14
|
||||
blt .Lmemmove_fl32 /* less than 32 bytes (12 from above) */
|
||||
stmdb sp!, {r4} /* borrow r4 */
|
||||
|
||||
/* blat 32 bytes at a time */
|
||||
/* XXX for really big copies perhaps we should use more registers */
|
||||
.Lmemmove_floop32:
|
||||
ldmia r1!, {r3, r4, r12, lr}
|
||||
stmia r0!, {r3, r4, r12, lr}
|
||||
ldmia r1!, {r3, r4, r12, lr}
|
||||
stmia r0!, {r3, r4, r12, lr}
|
||||
subs r2, r2, #0x20
|
||||
bge .Lmemmove_floop32
|
||||
|
||||
cmn r2, #0x10
|
||||
ldmgeia r1!, {r3, r4, r12, lr} /* blat a remaining 16 bytes */
|
||||
stmgeia r0!, {r3, r4, r12, lr}
|
||||
subge r2, r2, #0x10
|
||||
ldmia sp!, {r4} /* return r4 */
|
||||
|
||||
.Lmemmove_fl32:
|
||||
adds r2, r2, #0x14
|
||||
|
||||
/* blat 12 bytes at a time */
|
||||
.Lmemmove_floop12:
|
||||
ldmgeia r1!, {r3, r12, lr}
|
||||
stmgeia r0!, {r3, r12, lr}
|
||||
subges r2, r2, #0x0c
|
||||
bge .Lmemmove_floop12
|
||||
|
||||
.Lmemmove_fl12:
|
||||
adds r2, r2, #8
|
||||
blt .Lmemmove_fl4
|
||||
|
||||
subs r2, r2, #4
|
||||
ldrlt r3, [r1], #4
|
||||
strlt r3, [r0], #4
|
||||
ldmgeia r1!, {r3, r12}
|
||||
stmgeia r0!, {r3, r12}
|
||||
subge r2, r2, #4
|
||||
|
||||
.Lmemmove_fl4:
|
||||
/* less than 4 bytes to go */
|
||||
adds r2, r2, #4
|
||||
ldmeqia sp!, {r0, pc} /* done */
|
||||
|
||||
/* copy the crud byte at a time */
|
||||
cmp r2, #2
|
||||
ldrb r3, [r1], #1
|
||||
strb r3, [r0], #1
|
||||
ldrgeb r3, [r1], #1
|
||||
strgeb r3, [r0], #1
|
||||
ldrgtb r3, [r1], #1
|
||||
strgtb r3, [r0], #1
|
||||
ldmia sp!, {r0, pc}
|
||||
|
||||
/* erg - unaligned destination */
|
||||
.Lmemmove_fdestul:
|
||||
rsb r12, r12, #4
|
||||
cmp r12, #2
|
||||
|
||||
/* align destination with byte copies */
|
||||
ldrb r3, [r1], #1
|
||||
strb r3, [r0], #1
|
||||
ldrgeb r3, [r1], #1
|
||||
strgeb r3, [r0], #1
|
||||
ldrgtb r3, [r1], #1
|
||||
strgtb r3, [r0], #1
|
||||
subs r2, r2, r12
|
||||
blt .Lmemmove_fl4 /* less the 4 bytes */
|
||||
|
||||
ands r12, r1, #3
|
||||
beq .Lmemmove_ft8 /* we have an aligned source */
|
||||
|
||||
/* erg - unaligned source */
|
||||
/* This is where it gets nasty ... */
|
||||
.Lmemmove_fsrcul:
|
||||
bic r1, r1, #3
|
||||
ldr lr, [r1], #4
|
||||
cmp r12, #2
|
||||
bgt .Lmemmove_fsrcul3
|
||||
beq .Lmemmove_fsrcul2
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_fsrcul1loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemmove_fsrcul1loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #8
|
||||
#else
|
||||
mov r3, lr, lsr #8
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #24
|
||||
mov r4, r4, lsl #8
|
||||
orr r4, r4, r5, lsr #24
|
||||
mov r5, r5, lsl #8
|
||||
orr r5, r5, r12, lsr #24
|
||||
mov r12, r12, lsl #8
|
||||
orr r12, r12, lr, lsr #24
|
||||
#else
|
||||
orr r3, r3, r4, lsl #24
|
||||
mov r4, r4, lsr #8
|
||||
orr r4, r4, r5, lsl #24
|
||||
mov r5, r5, lsr #8
|
||||
orr r5, r5, r12, lsl #24
|
||||
mov r12, r12, lsr #8
|
||||
orr r12, r12, lr, lsl #24
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_fsrcul1loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_fsrcul1l4
|
||||
|
||||
.Lmemmove_fsrcul1loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #8
|
||||
#else
|
||||
mov r12, lr, lsr #8
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #24
|
||||
#else
|
||||
orr r12, r12, lr, lsl #24
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_fsrcul1loop4
|
||||
|
||||
.Lmemmove_fsrcul1l4:
|
||||
sub r1, r1, #3
|
||||
b .Lmemmove_fl4
|
||||
|
||||
.Lmemmove_fsrcul2:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_fsrcul2loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemmove_fsrcul2loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #16
|
||||
#else
|
||||
mov r3, lr, lsr #16
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #16
|
||||
mov r4, r4, lsl #16
|
||||
orr r4, r4, r5, lsr #16
|
||||
mov r5, r5, lsl #16
|
||||
orr r5, r5, r12, lsr #16
|
||||
mov r12, r12, lsl #16
|
||||
orr r12, r12, lr, lsr #16
|
||||
#else
|
||||
orr r3, r3, r4, lsl #16
|
||||
mov r4, r4, lsr #16
|
||||
orr r4, r4, r5, lsl #16
|
||||
mov r5, r5, lsr #16
|
||||
orr r5, r5, r12, lsl #16
|
||||
mov r12, r12, lsr #16
|
||||
orr r12, r12, lr, lsl #16
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_fsrcul2loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_fsrcul2l4
|
||||
|
||||
.Lmemmove_fsrcul2loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #16
|
||||
#else
|
||||
mov r12, lr, lsr #16
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #16
|
||||
#else
|
||||
orr r12, r12, lr, lsl #16
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_fsrcul2loop4
|
||||
|
||||
.Lmemmove_fsrcul2l4:
|
||||
sub r1, r1, #2
|
||||
b .Lmemmove_fl4
|
||||
|
||||
.Lmemmove_fsrcul3:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_fsrcul3loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5}
|
||||
|
||||
.Lmemmove_fsrcul3loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov r3, lr, lsl #24
|
||||
#else
|
||||
mov r3, lr, lsr #24
|
||||
#endif
|
||||
ldmia r1!, {r4, r5, r12, lr}
|
||||
#ifdef __ARMEB__
|
||||
orr r3, r3, r4, lsr #8
|
||||
mov r4, r4, lsl #24
|
||||
orr r4, r4, r5, lsr #8
|
||||
mov r5, r5, lsl #24
|
||||
orr r5, r5, r12, lsr #8
|
||||
mov r12, r12, lsl #24
|
||||
orr r12, r12, lr, lsr #8
|
||||
#else
|
||||
orr r3, r3, r4, lsl #8
|
||||
mov r4, r4, lsr #24
|
||||
orr r4, r4, r5, lsl #8
|
||||
mov r5, r5, lsr #24
|
||||
orr r5, r5, r12, lsl #8
|
||||
mov r12, r12, lsr #24
|
||||
orr r12, r12, lr, lsl #8
|
||||
#endif
|
||||
stmia r0!, {r3-r5, r12}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_fsrcul3loop16
|
||||
ldmia sp!, {r4, r5}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_fsrcul3l4
|
||||
|
||||
.Lmemmove_fsrcul3loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, lr, lsl #24
|
||||
#else
|
||||
mov r12, lr, lsr #24
|
||||
#endif
|
||||
ldr lr, [r1], #4
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, lr, lsr #8
|
||||
#else
|
||||
orr r12, r12, lr, lsl #8
|
||||
#endif
|
||||
str r12, [r0], #4
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_fsrcul3loop4
|
||||
|
||||
.Lmemmove_fsrcul3l4:
|
||||
sub r1, r1, #1
|
||||
b .Lmemmove_fl4
|
||||
|
||||
.Lmemmove_backwards:
|
||||
add r1, r1, r2
|
||||
add r0, r0, r2
|
||||
subs r2, r2, #4
|
||||
blt .Lmemmove_bl4 /* less than 4 bytes */
|
||||
ands r12, r0, #3
|
||||
bne .Lmemmove_bdestul /* oh unaligned destination addr */
|
||||
ands r12, r1, #3
|
||||
bne .Lmemmove_bsrcul /* oh unaligned source addr */
|
||||
|
||||
.Lmemmove_bt8:
|
||||
/* We have aligned source and destination */
|
||||
subs r2, r2, #8
|
||||
blt .Lmemmove_bl12 /* less than 12 bytes (4 from above) */
|
||||
stmdb sp!, {r4, lr}
|
||||
subs r2, r2, #0x14 /* less than 32 bytes (12 from above) */
|
||||
blt .Lmemmove_bl32
|
||||
|
||||
/* blat 32 bytes at a time */
|
||||
/* XXX for really big copies perhaps we should use more registers */
|
||||
.Lmemmove_bloop32:
|
||||
ldmdb r1!, {r3, r4, r12, lr}
|
||||
stmdb r0!, {r3, r4, r12, lr}
|
||||
ldmdb r1!, {r3, r4, r12, lr}
|
||||
stmdb r0!, {r3, r4, r12, lr}
|
||||
subs r2, r2, #0x20
|
||||
bge .Lmemmove_bloop32
|
||||
|
||||
.Lmemmove_bl32:
|
||||
cmn r2, #0x10
|
||||
ldmgedb r1!, {r3, r4, r12, lr} /* blat a remaining 16 bytes */
|
||||
stmgedb r0!, {r3, r4, r12, lr}
|
||||
subge r2, r2, #0x10
|
||||
adds r2, r2, #0x14
|
||||
ldmgedb r1!, {r3, r12, lr} /* blat a remaining 12 bytes */
|
||||
stmgedb r0!, {r3, r12, lr}
|
||||
subge r2, r2, #0x0c
|
||||
ldmia sp!, {r4, lr}
|
||||
|
||||
.Lmemmove_bl12:
|
||||
adds r2, r2, #8
|
||||
blt .Lmemmove_bl4
|
||||
subs r2, r2, #4
|
||||
ldrlt r3, [r1, #-4]!
|
||||
strlt r3, [r0, #-4]!
|
||||
ldmgedb r1!, {r3, r12}
|
||||
stmgedb r0!, {r3, r12}
|
||||
subge r2, r2, #4
|
||||
|
||||
.Lmemmove_bl4:
|
||||
/* less than 4 bytes to go */
|
||||
adds r2, r2, #4
|
||||
moveq pc, lr /* done */
|
||||
|
||||
/* copy the crud byte at a time */
|
||||
cmp r2, #2
|
||||
ldrb r3, [r1, #-1]!
|
||||
strb r3, [r0, #-1]!
|
||||
ldrgeb r3, [r1, #-1]!
|
||||
strgeb r3, [r0, #-1]!
|
||||
ldrgtb r3, [r1, #-1]!
|
||||
strgtb r3, [r0, #-1]!
|
||||
mov pc, lr
|
||||
|
||||
/* erg - unaligned destination */
|
||||
.Lmemmove_bdestul:
|
||||
cmp r12, #2
|
||||
|
||||
/* align destination with byte copies */
|
||||
ldrb r3, [r1, #-1]!
|
||||
strb r3, [r0, #-1]!
|
||||
ldrgeb r3, [r1, #-1]!
|
||||
strgeb r3, [r0, #-1]!
|
||||
ldrgtb r3, [r1, #-1]!
|
||||
strgtb r3, [r0, #-1]!
|
||||
subs r2, r2, r12
|
||||
blt .Lmemmove_bl4 /* less than 4 bytes to go */
|
||||
ands r12, r1, #3
|
||||
beq .Lmemmove_bt8 /* we have an aligned source */
|
||||
|
||||
/* erg - unaligned source */
|
||||
/* This is where it gets nasty ... */
|
||||
.Lmemmove_bsrcul:
|
||||
bic r1, r1, #3
|
||||
ldr r3, [r1, #0]
|
||||
cmp r12, #2
|
||||
blt .Lmemmove_bsrcul1
|
||||
beq .Lmemmove_bsrcul2
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_bsrcul3loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5, lr}
|
||||
|
||||
.Lmemmove_bsrcul3loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov lr, r3, lsr #8
|
||||
#else
|
||||
mov lr, r3, lsl #8
|
||||
#endif
|
||||
ldmdb r1!, {r3-r5, r12}
|
||||
#ifdef __ARMEB__
|
||||
orr lr, lr, r12, lsl #24
|
||||
mov r12, r12, lsr #8
|
||||
orr r12, r12, r5, lsl #24
|
||||
mov r5, r5, lsr #8
|
||||
orr r5, r5, r4, lsl #24
|
||||
mov r4, r4, lsr #8
|
||||
orr r4, r4, r3, lsl #24
|
||||
#else
|
||||
orr lr, lr, r12, lsr #24
|
||||
mov r12, r12, lsl #8
|
||||
orr r12, r12, r5, lsr #24
|
||||
mov r5, r5, lsl #8
|
||||
orr r5, r5, r4, lsr #24
|
||||
mov r4, r4, lsl #8
|
||||
orr r4, r4, r3, lsr #24
|
||||
#endif
|
||||
stmdb r0!, {r4, r5, r12, lr}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_bsrcul3loop16
|
||||
ldmia sp!, {r4, r5, lr}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_bsrcul3l4
|
||||
|
||||
.Lmemmove_bsrcul3loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, r3, lsr #8
|
||||
#else
|
||||
mov r12, r3, lsl #8
|
||||
#endif
|
||||
ldr r3, [r1, #-4]!
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, r3, lsl #24
|
||||
#else
|
||||
orr r12, r12, r3, lsr #24
|
||||
#endif
|
||||
str r12, [r0, #-4]!
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_bsrcul3loop4
|
||||
|
||||
.Lmemmove_bsrcul3l4:
|
||||
add r1, r1, #3
|
||||
b .Lmemmove_bl4
|
||||
|
||||
.Lmemmove_bsrcul2:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_bsrcul2loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5, lr}
|
||||
|
||||
.Lmemmove_bsrcul2loop16:
|
||||
#ifdef __ARMEB__
|
||||
mov lr, r3, lsr #16
|
||||
#else
|
||||
mov lr, r3, lsl #16
|
||||
#endif
|
||||
ldmdb r1!, {r3-r5, r12}
|
||||
#ifdef __ARMEB__
|
||||
orr lr, lr, r12, lsl #16
|
||||
mov r12, r12, lsr #16
|
||||
orr r12, r12, r5, lsl #16
|
||||
mov r5, r5, lsr #16
|
||||
orr r5, r5, r4, lsl #16
|
||||
mov r4, r4, lsr #16
|
||||
orr r4, r4, r3, lsl #16
|
||||
#else
|
||||
orr lr, lr, r12, lsr #16
|
||||
mov r12, r12, lsl #16
|
||||
orr r12, r12, r5, lsr #16
|
||||
mov r5, r5, lsl #16
|
||||
orr r5, r5, r4, lsr #16
|
||||
mov r4, r4, lsl #16
|
||||
orr r4, r4, r3, lsr #16
|
||||
#endif
|
||||
stmdb r0!, {r4, r5, r12, lr}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_bsrcul2loop16
|
||||
ldmia sp!, {r4, r5, lr}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_bsrcul2l4
|
||||
|
||||
.Lmemmove_bsrcul2loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, r3, lsr #16
|
||||
#else
|
||||
mov r12, r3, lsl #16
|
||||
#endif
|
||||
ldr r3, [r1, #-4]!
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, r3, lsl #16
|
||||
#else
|
||||
orr r12, r12, r3, lsr #16
|
||||
#endif
|
||||
str r12, [r0, #-4]!
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_bsrcul2loop4
|
||||
|
||||
.Lmemmove_bsrcul2l4:
|
||||
add r1, r1, #2
|
||||
b .Lmemmove_bl4
|
||||
|
||||
.Lmemmove_bsrcul1:
|
||||
cmp r2, #0x0c
|
||||
blt .Lmemmove_bsrcul1loop4
|
||||
sub r2, r2, #0x0c
|
||||
stmdb sp!, {r4, r5, lr}
|
||||
|
||||
.Lmemmove_bsrcul1loop32:
|
||||
#ifdef __ARMEB__
|
||||
mov lr, r3, lsr #24
|
||||
#else
|
||||
mov lr, r3, lsl #24
|
||||
#endif
|
||||
ldmdb r1!, {r3-r5, r12}
|
||||
#ifdef __ARMEB__
|
||||
orr lr, lr, r12, lsl #8
|
||||
mov r12, r12, lsr #24
|
||||
orr r12, r12, r5, lsl #8
|
||||
mov r5, r5, lsr #24
|
||||
orr r5, r5, r4, lsl #8
|
||||
mov r4, r4, lsr #24
|
||||
orr r4, r4, r3, lsl #8
|
||||
#else
|
||||
orr lr, lr, r12, lsr #8
|
||||
mov r12, r12, lsl #24
|
||||
orr r12, r12, r5, lsr #8
|
||||
mov r5, r5, lsl #24
|
||||
orr r5, r5, r4, lsr #8
|
||||
mov r4, r4, lsl #24
|
||||
orr r4, r4, r3, lsr #8
|
||||
#endif
|
||||
stmdb r0!, {r4, r5, r12, lr}
|
||||
subs r2, r2, #0x10
|
||||
bge .Lmemmove_bsrcul1loop32
|
||||
ldmia sp!, {r4, r5, lr}
|
||||
adds r2, r2, #0x0c
|
||||
blt .Lmemmove_bsrcul1l4
|
||||
|
||||
.Lmemmove_bsrcul1loop4:
|
||||
#ifdef __ARMEB__
|
||||
mov r12, r3, lsr #24
|
||||
#else
|
||||
mov r12, r3, lsl #24
|
||||
#endif
|
||||
ldr r3, [r1, #-4]!
|
||||
#ifdef __ARMEB__
|
||||
orr r12, r12, r3, lsl #8
|
||||
#else
|
||||
orr r12, r12, r3, lsr #8
|
||||
#endif
|
||||
str r12, [r0, #-4]!
|
||||
subs r2, r2, #4
|
||||
bge .Lmemmove_bsrcul1loop4
|
||||
|
||||
.Lmemmove_bsrcul1l4:
|
||||
add r1, r1, #1
|
||||
b .Lmemmove_bl4
|
236
lib/libc/arm/string/memset.S
Normal file
236
lib/libc/arm/string/memset.S
Normal file
@ -0,0 +1,236 @@
|
||||
/* $NetBSD: memset.S,v 1.4 2003/10/14 07:51:45 scw Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright 2003 Wasabi Systems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Written by Steve C. Woodford for Wasabi Systems, Inc.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed for the NetBSD Project by
|
||||
* Wasabi Systems, Inc.
|
||||
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
|
||||
* 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.
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 1995 Mark Brinicombe.
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe.
|
||||
* 4. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* 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 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("$FreeBSD$");
|
||||
|
||||
/*
|
||||
* memset: Sets a block of memory to the specified value
|
||||
*
|
||||
* On entry:
|
||||
* r0 - dest address
|
||||
* r1 - byte to write
|
||||
* r2 - number of bytes to write
|
||||
*
|
||||
* On exit:
|
||||
* r0 - dest address
|
||||
*/
|
||||
#ifdef _BZERO
|
||||
/* LINTSTUB: Func: void bzero(void *, size_t) */
|
||||
ENTRY(bzero)
|
||||
mov r3, #0x00
|
||||
#else
|
||||
/* LINTSTUB: Func: void *memset(void *, int, size_t) */
|
||||
ENTRY(memset)
|
||||
and r3, r1, #0xff /* We deal with bytes */
|
||||
mov r1, r2
|
||||
#endif
|
||||
cmp r1, #0x04 /* Do we have less than 4 bytes */
|
||||
mov ip, r0
|
||||
blt .Lmemset_lessthanfour
|
||||
|
||||
/* Ok first we will word align the address */
|
||||
ands r2, ip, #0x03 /* Get the bottom two bits */
|
||||
bne .Lmemset_wordunaligned /* The address is not word aligned */
|
||||
|
||||
/* We are now word aligned */
|
||||
.Lmemset_wordaligned:
|
||||
#ifndef _BZERO
|
||||
orr r3, r3, r3, lsl #8 /* Extend value to 16-bits */
|
||||
#endif
|
||||
#ifdef __XSCALE__
|
||||
tst ip, #0x04 /* Quad-align for Xscale */
|
||||
#else
|
||||
cmp r1, #0x10
|
||||
#endif
|
||||
#ifndef _BZERO
|
||||
orr r3, r3, r3, lsl #16 /* Extend value to 32-bits */
|
||||
#endif
|
||||
#ifdef __XSCALE__
|
||||
subne r1, r1, #0x04 /* Quad-align if necessary */
|
||||
strne r3, [ip], #0x04
|
||||
cmp r1, #0x10
|
||||
#endif
|
||||
blt .Lmemset_loop4 /* If less than 16 then use words */
|
||||
mov r2, r3 /* Duplicate data */
|
||||
cmp r1, #0x80 /* If < 128 then skip the big loop */
|
||||
blt .Lmemset_loop32
|
||||
|
||||
/* Do 128 bytes at a time */
|
||||
.Lmemset_loop128:
|
||||
subs r1, r1, #0x80
|
||||
#ifdef __XSCALE__
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
#else
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
#endif
|
||||
bgt .Lmemset_loop128
|
||||
moveq pc, lr /* Zero length so just exit */
|
||||
|
||||
add r1, r1, #0x80 /* Adjust for extra sub */
|
||||
|
||||
/* Do 32 bytes at a time */
|
||||
.Lmemset_loop32:
|
||||
subs r1, r1, #0x20
|
||||
#ifdef __XSCALE__
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
#else
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
#endif
|
||||
bgt .Lmemset_loop32
|
||||
moveq pc, lr /* Zero length so just exit */
|
||||
|
||||
adds r1, r1, #0x10 /* Partially adjust for extra sub */
|
||||
|
||||
/* Deal with 16 bytes or more */
|
||||
#ifdef __XSCALE__
|
||||
strged r2, [ip], #0x08
|
||||
strged r2, [ip], #0x08
|
||||
#else
|
||||
stmgeia ip!, {r2-r3}
|
||||
stmgeia ip!, {r2-r3}
|
||||
#endif
|
||||
moveq pc, lr /* Zero length so just exit */
|
||||
|
||||
addlt r1, r1, #0x10 /* Possibly adjust for extra sub */
|
||||
|
||||
/* We have at least 4 bytes so copy as words */
|
||||
.Lmemset_loop4:
|
||||
subs r1, r1, #0x04
|
||||
strge r3, [ip], #0x04
|
||||
bgt .Lmemset_loop4
|
||||
moveq pc, lr /* Zero length so just exit */
|
||||
|
||||
#ifdef __XSCALE__
|
||||
/* Compensate for 64-bit alignment check */
|
||||
adds r1, r1, #0x04
|
||||
moveq pc, lr
|
||||
cmp r1, #2
|
||||
#else
|
||||
cmp r1, #-2
|
||||
#endif
|
||||
|
||||
strb r3, [ip], #0x01 /* Set 1 byte */
|
||||
strgeb r3, [ip], #0x01 /* Set another byte */
|
||||
strgtb r3, [ip] /* and a third */
|
||||
mov pc, lr /* Exit */
|
||||
|
||||
.Lmemset_wordunaligned:
|
||||
rsb r2, r2, #0x004
|
||||
strb r3, [ip], #0x01 /* Set 1 byte */
|
||||
cmp r2, #0x02
|
||||
strgeb r3, [ip], #0x01 /* Set another byte */
|
||||
sub r1, r1, r2
|
||||
strgtb r3, [ip], #0x01 /* and a third */
|
||||
cmp r1, #0x04 /* More than 4 bytes left? */
|
||||
bge .Lmemset_wordaligned /* Yup */
|
||||
|
||||
.Lmemset_lessthanfour:
|
||||
cmp r1, #0x00
|
||||
moveq pc, lr /* Zero length so exit */
|
||||
strb r3, [ip], #0x01 /* Set 1 byte */
|
||||
cmp r1, #0x02
|
||||
strgeb r3, [ip], #0x01 /* Set another byte */
|
||||
strgtb r3, [ip] /* and a third */
|
||||
mov pc, lr /* Exit */
|
43
lib/libc/arm/string/strcmp.S
Normal file
43
lib/libc/arm/string/strcmp.S
Normal file
@ -0,0 +1,43 @@
|
||||
/* $NetBSD: strcmp.S,v 1.3 2003/04/05 23:08:52 bjh21 Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2002 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 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.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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(strcmp)
|
||||
1:
|
||||
ldrb r2, [r0], #1
|
||||
ldrb r3, [r1], #1
|
||||
cmp r2, #1
|
||||
cmpcs r2, r3
|
||||
beq 1b
|
||||
sub r0, r2, r3
|
||||
mov pc, lr
|
51
lib/libc/arm/string/strncmp.S
Normal file
51
lib/libc/arm/string/strncmp.S
Normal file
@ -0,0 +1,51 @@
|
||||
/* $NetBSD: strncmp.S,v 1.2 2003/04/05 23:08:52 bjh21 Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2002 ARM Ltd
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 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.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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(strncmp)
|
||||
/* if ((len - 1) < 0) return 0 */
|
||||
subs r2, r2, #1
|
||||
movmi r0, #0
|
||||
movmi pc, lr
|
||||
|
||||
/* ip == last src address to compare */
|
||||
add ip, r0, r2
|
||||
1:
|
||||
ldrb r2, [r0], #1
|
||||
ldrb r3, [r1], #1
|
||||
cmp ip, r0
|
||||
cmpcs r2, #1
|
||||
cmpcs r2, r3
|
||||
beq 1b
|
||||
sub r0, r2, r3
|
||||
mov pc, lr
|
9
lib/libc/arm/sys/Makefile.inc
Normal file
9
lib/libc/arm/sys/Makefile.inc
Normal file
@ -0,0 +1,9 @@
|
||||
# $FreeBSD$
|
||||
|
||||
MDASM= Ovfork.S brk.S cerror.S getcontext.S pipe.S ptrace.S sbrk.S shmat.S sigreturn.S syscall.S
|
||||
|
||||
# Don't generate default code for these syscalls:
|
||||
NOASM= break.o exit.o ftruncate.o getdomainname.o getlogin.o \
|
||||
lseek.o mmap.o openbsd_poll.o pread.o \
|
||||
pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o
|
||||
PSEUDO= _exit.o _getlogin.o
|
57
lib/libc/arm/sys/Ovfork.S
Normal file
57
lib/libc/arm/sys/Ovfork.S
Normal file
@ -0,0 +1,57 @@
|
||||
/* $NetBSD: Ovfork.S,v 1.6 2003/08/07 16:42:03 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)Ovfork.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
WARN_REFERENCES(vfork, \
|
||||
"warning: reference to compatibility vfork(); include <unistd.h> for correct reference")
|
||||
|
||||
/*
|
||||
* pid = vfork();
|
||||
*
|
||||
* On return from the SWI:
|
||||
* r1 == 0 in parent process, r1 == 1 in child process.
|
||||
* r0 == pid of child in parent, r0 == pid of parent in child.
|
||||
*/
|
||||
.text
|
||||
.align 0
|
||||
|
||||
ENTRY(vfork)
|
||||
mov r2, r14
|
||||
SYSTRAP(vfork)
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
sub r1, r1, #1 /* r1 == 0xffffffff if parent, 0 if child */
|
||||
and r0, r0, r1 /* r0 == 0 if child, else unchanged */
|
||||
mov r15, r2
|
100
lib/libc/arm/sys/brk.S
Normal file
100
lib/libc/arm/sys/brk.S
Normal file
@ -0,0 +1,100 @@
|
||||
/* $NetBSD: brk.S,v 1.6 2003/08/07 16:42:04 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)brk.s 5.2 (Berkeley) 12/17/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
.globl _C_LABEL(end)
|
||||
.globl CURBRK
|
||||
|
||||
#ifdef WEAK_ALIAS
|
||||
WEAK_ALIAS(brk, _brk)
|
||||
#endif
|
||||
|
||||
.data
|
||||
.align 0
|
||||
.globl _C_LABEL(minbrk)
|
||||
.type _C_LABEL(minbrk),#object
|
||||
_C_LABEL(minbrk):
|
||||
.word _C_LABEL(end)
|
||||
|
||||
/*
|
||||
* Change the data segment size
|
||||
*/
|
||||
ENTRY(_brk)
|
||||
#ifdef PIC
|
||||
/* Setup the GOT */
|
||||
ldr r3, .Lgot
|
||||
add r3, pc, r3
|
||||
.L1:
|
||||
ldr r1, .Lminbrk
|
||||
ldr r1, [r3, r1]
|
||||
#else
|
||||
ldr r1, .Lminbrk
|
||||
#endif
|
||||
/* Get the minimum allowable brk address */
|
||||
ldr r1, [r1]
|
||||
|
||||
/*
|
||||
* Valid the address specified and set to the minimum
|
||||
* if the address is below minbrk.
|
||||
*/
|
||||
cmp r0, r1
|
||||
movlt r0, r1
|
||||
mov r2, r0
|
||||
SYSTRAP(break)
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
|
||||
#ifdef PIC
|
||||
ldr r1, .Lcurbrk
|
||||
ldr r1, [r3, r1]
|
||||
#else
|
||||
ldr r1, .Lcurbrk
|
||||
#endif
|
||||
/* Store the new address in curbrk */
|
||||
str r2, [r1]
|
||||
|
||||
/* Return 0 for success */
|
||||
mov r0, #0x00000000
|
||||
mov r15, r14
|
||||
|
||||
.align 2
|
||||
#ifdef PIC
|
||||
.Lgot:
|
||||
.word _GLOBAL_OFFSET_TABLE_ - (.L1+4)
|
||||
#endif
|
||||
.Lminbrk:
|
||||
.word PIC_SYM(_C_LABEL(minbrk), GOT)
|
||||
.Lcurbrk:
|
||||
.word PIC_SYM(CURBRK, GOT)
|
76
lib/libc/arm/sys/cerror.S
Normal file
76
lib/libc/arm/sys/cerror.S
Normal file
@ -0,0 +1,76 @@
|
||||
/* $NetBSD: cerror.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)cerror.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
.globl _C_LABEL(__error)
|
||||
.type _C_LABEL(__error),%function
|
||||
|
||||
ASENTRY(CERROR)
|
||||
#if 1
|
||||
stmfd sp!, {r4, lr}
|
||||
mov r4, r0
|
||||
bl PIC_SYM(_C_LABEL(__error), PLT)
|
||||
str r4, [r0]
|
||||
mvn r0, #0x00000000
|
||||
mvn r1, #0x00000000
|
||||
ldmfd sp!, {r4, pc}
|
||||
#else
|
||||
#ifdef PIC
|
||||
/* Setup the GOT */
|
||||
ldr r3, .Lgot
|
||||
add r3, pc, r3
|
||||
.L1:
|
||||
ldr r1, .Lerrno
|
||||
ldr r1, [r3, r1]
|
||||
#else
|
||||
ldr r1, .Lerrno
|
||||
#endif /* PIC */
|
||||
str r0, [r1]
|
||||
mvn r0, #0x00000000
|
||||
mvn r1, #0x00000000
|
||||
mov pc, lr
|
||||
|
||||
#if 0
|
||||
.align 0
|
||||
.Lgot:
|
||||
.word _C_LABEL(_GLOBAL_OFFSET_TABLE_) + (. - (.L1+4))
|
||||
#endif /* PIC */
|
||||
|
||||
.globl _C_LABEL(errno)
|
||||
|
||||
.Lerrno:
|
||||
.word PIC_SYM(_C_LABEL(errno), GOT)
|
||||
#endif /* _REENTRANT */
|
49
lib/libc/arm/sys/fork.S
Normal file
49
lib/libc/arm/sys/fork.S
Normal file
@ -0,0 +1,49 @@
|
||||
/* $NetBSD: fork.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)fork.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
/*
|
||||
* pid = fork();
|
||||
*
|
||||
* On return from the SWI:
|
||||
* r1 == 0 in parent process, r1 == 1 in child process.
|
||||
* r0 == pid of child in parent, r0 == pid of parent in child.
|
||||
*/
|
||||
|
||||
_SYSCALL(fork)
|
||||
sub r1, r1, #1 /* r1 == 0xffffffff if parent, 0 if child */
|
||||
and r0, r0, r1 /* r0 == 0 if child, else unchanged */
|
||||
mov r15, r14
|
63
lib/libc/arm/sys/getcontext.S
Normal file
63
lib/libc/arm/sys/getcontext.S
Normal file
@ -0,0 +1,63 @@
|
||||
/* $NetBSD: getcontext.S,v 1.3 2003/04/05 23:08:52 bjh21 Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Klaus Klein.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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"
|
||||
|
||||
#if defined(SYSLIBC_SCCS) && !defined(lint)
|
||||
RCSID("$NetBSD: getcontext.S,v 1.3 2003/04/05 23:08:52 bjh21 Exp $")
|
||||
#endif /* SYSLIBC_SCCS && !lint */
|
||||
|
||||
#ifdef WEAK_ALIAS
|
||||
WEAK_ALIAS(getcontext, _getcontext)
|
||||
#endif
|
||||
|
||||
ENTRY(_getcontext)
|
||||
mov r2, r0 /* Must save argument pointer. */
|
||||
swi SYS_getcontext
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
str lr, [r2, #(36 + 15*4)] /* Adjust PC. */
|
||||
#ifdef SOFTFLOAT
|
||||
/* Ahem. */
|
||||
/* Judging from the softfloat code we should at least save
|
||||
the exception codes and rounding mode here. */
|
||||
#endif
|
||||
mov r0, #0
|
||||
str r0, [r2, #(36 + 0*4)] /* Return 0. */
|
||||
mov pc, lr
|
49
lib/libc/arm/sys/pipe.S
Normal file
49
lib/libc/arm/sys/pipe.S
Normal file
@ -0,0 +1,49 @@
|
||||
/* $NetBSD: pipe.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)pipe.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
#ifdef WEAK_ALIAS
|
||||
WEAK_ALIAS(pipe, _pipe)
|
||||
#endif
|
||||
|
||||
ENTRY(_pipe)
|
||||
mov r2, r0
|
||||
SYSTRAP(pipe)
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
str r0, [r2, #0x0000]
|
||||
str r1, [r2, #0x0004]
|
||||
mov r0, #0x00000000
|
||||
mov r15, r14
|
77
lib/libc/arm/sys/ptrace.S
Normal file
77
lib/libc/arm/sys/ptrace.S
Normal file
@ -0,0 +1,77 @@
|
||||
/* $NetBSD: ptrace.S,v 1.7 2003/08/07 16:42:04 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)ptrace.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
ENTRY(ptrace)
|
||||
#ifdef _REENTRANT
|
||||
stmfd sp!, {r0-r3, lr}
|
||||
sub sp, sp, #4 /* align stack */
|
||||
bl PIC_SYM(_C_LABEL(__errno), PLT)
|
||||
add sp, sp, #4 /* unalign stack */
|
||||
mov r1, #0x00000000
|
||||
str r1, [r0]
|
||||
ldmfd sp!, {r0-r3, lr}
|
||||
#else
|
||||
stmfd sp!, {r0, r1}
|
||||
#ifdef PIC
|
||||
/* Setup the GOT */
|
||||
ldr r0, .Lgot
|
||||
add r0, pc, r0
|
||||
.L1:
|
||||
ldr r1, .Lerrno
|
||||
ldr r1, [r0, r1]
|
||||
#else
|
||||
ldr r1, .Lerrno
|
||||
#endif /* PIC */
|
||||
mov r0, #0x00000000
|
||||
str r0, [r1]
|
||||
ldmfd sp!, {r0, r1}
|
||||
#endif /* _REENTRANT */
|
||||
|
||||
SYSTRAP(ptrace)
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
mov pc, lr
|
||||
|
||||
#ifndef _REENTRANT
|
||||
#ifdef PIC
|
||||
.align 0
|
||||
.Lgot:
|
||||
.word _C_LABEL(_GLOBAL_OFFSET_TABLE_) + (. - (.L1+4))
|
||||
#endif /* PIC */
|
||||
|
||||
.Lerrno:
|
||||
.word PIC_SYM(_C_LABEL(errno), GOT)
|
||||
#endif /* !_REENTRANT */
|
88
lib/libc/arm/sys/sbrk.S
Normal file
88
lib/libc/arm/sys/sbrk.S
Normal file
@ -0,0 +1,88 @@
|
||||
/* $NetBSD: sbrk.S,v 1.7 2003/08/07 16:42:05 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)sbrk.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
.globl _C_LABEL(end)
|
||||
|
||||
#ifdef WEAK_ALIAS
|
||||
WEAK_ALIAS(sbrk, _sbrk)
|
||||
#endif
|
||||
|
||||
.data
|
||||
.align 0
|
||||
.globl CURBRK
|
||||
.type CURBRK,#object
|
||||
CURBRK:
|
||||
.word _C_LABEL(end)
|
||||
|
||||
/*
|
||||
* Change the data segment size
|
||||
*/
|
||||
ENTRY(_sbrk)
|
||||
#ifdef PIC
|
||||
/* Setup the GOT */
|
||||
ldr r3, .Lgot
|
||||
add r3, pc, r3
|
||||
.L1:
|
||||
ldr r2, .Lcurbrk
|
||||
ldr r2, [r3, r2]
|
||||
#else
|
||||
ldr r2, .Lcurbrk
|
||||
#endif
|
||||
/* Get the current brk address */
|
||||
ldr r1, [r2]
|
||||
|
||||
/* Calculate new value */
|
||||
mov r3, r0
|
||||
add r0, r0, r1
|
||||
SYSTRAP(break)
|
||||
bcs PIC_SYM(CERROR, PLT)
|
||||
|
||||
/* Store new curbrk value */
|
||||
ldr r0, [r2]
|
||||
add r1, r0, r3
|
||||
str r1, [r2]
|
||||
|
||||
/* Return old curbrk value */
|
||||
mov r15, r14
|
||||
|
||||
.align 0
|
||||
#ifdef PIC
|
||||
.Lgot:
|
||||
.word _GLOBAL_OFFSET_TABLE_ - (.L1+4)
|
||||
#endif
|
||||
.Lcurbrk:
|
||||
.word PIC_SYM(CURBRK, GOT)
|
7
lib/libc/arm/sys/shmat.S
Normal file
7
lib/libc/arm/sys/shmat.S
Normal file
@ -0,0 +1,7 @@
|
||||
/* $NetBSD: shmat.S,v 1.1 2000/12/29 20:14:04 bjh21 Exp $ */
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
RSYSCALL(shmat)
|
42
lib/libc/arm/sys/sigreturn.S
Normal file
42
lib/libc/arm/sys/sigreturn.S
Normal file
@ -0,0 +1,42 @@
|
||||
/* $NetBSD: __sigreturn14.S,v 1.3 2003/08/07 16:42:03 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)sigreturn.s 5.2 (Berkeley) 12/17/90"
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
/*
|
||||
* We must preserve the state of the registers as the user has set them up.
|
||||
*/
|
||||
|
||||
RSYSCALL(sigreturn)
|
38
lib/libc/arm/sys/syscall.S
Normal file
38
lib/libc/arm/sys/syscall.S
Normal file
@ -0,0 +1,38 @@
|
||||
/* $NetBSD: syscall.S,v 1.4 2003/08/07 16:42:05 agc Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* 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.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
||||
*
|
||||
* from: @(#)syscall.s 5.1 (Berkeley) 4/23/90
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include "SYS.h"
|
||||
|
||||
RSYSCALL(syscall)
|
Loading…
Reference in New Issue
Block a user