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Bring in initial libc support for mips. These files were taken from 

the OpenBSD tree and should be considered preliminary.  They are here
to facilitate building of the tree.
This commit is contained in:
Warner Losh 1999-03-03 07:06:17 +00:00
parent cb11191c01
commit d7ee48f115
48 changed files with 2684 additions and 0 deletions
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5
lib/libc/mips/:errfix Normal file
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?sys_nerr?
.-4,.+1m1
.+1,$g/\.data/s//\.text/
w
q

4
lib/libc/mips/Makefile.inc Normal file
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# $OpenBSD: Makefile.inc,v 1.1.1.1 1995/10/18 08:41:33 deraadt Exp $
KMINCLUDES=
KMSRCS=

80
lib/libc/mips/SYS.h Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*
* $OpenBSD: SYS.h,v 1.3 1996/07/30 20:27:48 pefo Exp $
*/
#include <sys/syscall.h>
#include <machine/asm.h>
#ifdef __STDC__
#define RSYSCALL(x) \
LEAF(x); \
li v0,SYS_ ## x; \
syscall; \
bne a3,zero,err; \
j ra; \
err: la t9, cerror; \
jr t9; \
END(x);
#define PSEUDO(x,y) \
LEAF(x); \
li v0,SYS_ ## y; \
syscall; \
bne a3,zero,err; \
j ra; \
err: la t9, cerror; \
jr t9; \
END(x);
#else
#define RSYSCALL(x) \
LEAF(x); \
li v0,SYS_/**/x; \
syscall; \
bne a3,zero,err; \
j ra; \
err: la t9, cerror; \
jr t9; \
END(x);
#define PSEUDO(x,y) \
LEAF(x); \
li v0,SYS_/**/y; \
syscall; \
bne a3,zero,err; \
j ra; \
err: la t9, cerror; \
jr t9; \
END(x);
#endif

6
lib/libc/mips/gen/Makefile.inc Normal file
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# $OpenBSD: Makefile.inc,v 1.4 1995/12/15 01:12:36 jonathan Exp $
SRCS+= _setjmp.S fabs.S frexp.c infinity.c isinf.S ldexp.S modf.S
SRCS+= flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
fpsetround.c fpsetsticky.c
SRCS+= setjmp.S sigsetjmp.S

132
lib/libc/mips/gen/_setjmp.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/regnum.h>
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD: _setjmp.S,v 1.5 1996/08/19 08:15:51 tholo Exp $"
#endif /* LIBC_SCCS */
/*
* 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 NOT restored.
*/
LEAF(_setjmp)
.set noreorder
li v0, 0xACEDBADE # sigcontext magic number
sw ra, (2 * 4)(a0) # sc_pc = return address
sw v0, (3 * 4)(a0) # saved in sc_regs[0]
sw s0, ((S0 + 3) * 4)(a0)
sw s1, ((S1 + 3) * 4)(a0)
sw s2, ((S2 + 3) * 4)(a0)
sw s3, ((S3 + 3) * 4)(a0)
sw s4, ((S4 + 3) * 4)(a0)
sw s5, ((S5 + 3) * 4)(a0)
sw s6, ((S6 + 3) * 4)(a0)
sw s7, ((S7 + 3) * 4)(a0)
sw sp, ((SP + 3) * 4)(a0)
sw s8, ((S8 + 3) * 4)(a0)
cfc1 v0, $31 # too bad cant check if FP used
swc1 $f20, ((20 + 38) * 4)(a0)
swc1 $f21, ((21 + 38) * 4)(a0)
swc1 $f22, ((22 + 38) * 4)(a0)
swc1 $f23, ((23 + 38) * 4)(a0)
swc1 $f24, ((24 + 38) * 4)(a0)
swc1 $f25, ((25 + 38) * 4)(a0)
swc1 $f26, ((26 + 38) * 4)(a0)
swc1 $f27, ((27 + 38) * 4)(a0)
swc1 $f28, ((28 + 38) * 4)(a0)
swc1 $f29, ((29 + 38) * 4)(a0)
swc1 $f30, ((30 + 38) * 4)(a0)
swc1 $f31, ((31 + 38) * 4)(a0)
sw v0, ((32 + 38) * 4)(a0)
j ra
move v0, zero
END(_setjmp)
LEAF(_longjmp)
#ifdef ABICALLS
subu sp, sp, 32
.cprestore 16
#endif
.set noreorder
lw v0, (3 * 4)(a0) # get magic number
lw ra, (2 * 4)(a0)
bne v0, 0xACEDBADE, botch # jump if error
addu sp, sp, 32 # does not matter, sanity
lw s0, ((S0 + 3) * 4)(a0)
lw s1, ((S1 + 3) * 4)(a0)
lw s2, ((S2 + 3) * 4)(a0)
lw s3, ((S3 + 3) * 4)(a0)
lw s4, ((S4 + 3) * 4)(a0)
lw s5, ((S5 + 3) * 4)(a0)
lw s6, ((S6 + 3) * 4)(a0)
lw s7, ((S7 + 3) * 4)(a0)
lw v0, ((32 + 38) * 4)(a0) # get fpu status
lw sp, ((SP + 3) * 4)(a0)
lw s8, ((S8 + 3) * 4)(a0)
ctc1 v0, $31
lwc1 $f20, ((20 + 38) * 4)(a0)
lwc1 $f21, ((21 + 38) * 4)(a0)
lwc1 $f22, ((22 + 38) * 4)(a0)
lwc1 $f23, ((23 + 38) * 4)(a0)
lwc1 $f24, ((24 + 38) * 4)(a0)
lwc1 $f25, ((25 + 38) * 4)(a0)
lwc1 $f26, ((26 + 38) * 4)(a0)
lwc1 $f27, ((27 + 38) * 4)(a0)
lwc1 $f28, ((28 + 38) * 4)(a0)
lwc1 $f29, ((29 + 38) * 4)(a0)
lwc1 $f30, ((30 + 38) * 4)(a0)
lwc1 $f31, ((31 + 38) * 4)(a0)
j ra
move v0, a1
botch:
jal _C_LABEL(longjmperror)
nop
jal _C_LABEL(abort)
nop
END(_longjmp)

54
lib/libc/mips/gen/fabs.S Normal file
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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* fabs(x)
* double x;
*
* Return absolute value of x.
*/
LEAF(fabs)
.set noreorder
j ra
abs.d $f0, $f12 # compute absolute value of x
END(fabs)

27
lib/libc/mips/gen/flt_rounds.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#include <sys/types.h>
#include <machine/float.h>
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: flt_rounds.c,v 1.3 1997/08/01 21:36:28 deraadt Exp $";
#endif /* LIBC_SCCS and not lint */
static const int map[] = {
1, /* round to nearest */
0, /* round to zero */
2, /* round to positive infinity */
3 /* round to negative infinity */
};
int
__flt_rounds()
{
int x;
__asm__("cfc1 %0,$31" : "=r" (x));
return map[x & 0x03];
}

19
lib/libc/mips/gen/fpgetmask.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_except
fpgetmask()
{
int x;
__asm__("cfc1 %0,$31" : "=r" (x));
return (x >> 7) & 0x1f;
}

19
lib/libc/mips/gen/fpgetround.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_rnd
fpgetround()
{
int x;
__asm__("cfc1 %0,$31" : "=r" (x));
return x & 0x03;
}

19
lib/libc/mips/gen/fpgetsticky.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_except
fpgetsticky()
{
int x;
__asm__("cfc1 %0,$31" : "=r" (x));
return (x >> 2) & 0x1f;
}

28
lib/libc/mips/gen/fpsetmask.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_except
fpsetmask(mask)
fp_except mask;
{
fp_except old;
fp_except new;
__asm__("cfc1 %0,$31" : "=r" (old));
new = old;
new &= ~(0x1f << 7);
new |= ((mask & 0x1f) << 7);
__asm__("ctc1 %0,$31" : : "r" (new));
return (old >> 7) & 0x1f;
}

28
lib/libc/mips/gen/fpsetround.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_rnd
fpsetround(rnd_dir)
fp_rnd rnd_dir;
{
fp_rnd old;
fp_rnd new;
__asm__("cfc1 %0,$31" : "=r" (old));
new = old;
new &= ~0x03;
new |= (rnd_dir & 0x03);
__asm__("ctc1 %0,$31" : : "r" (new));
return old & 0x03;
}

28
lib/libc/mips/gen/fpsetsticky.c Normal file
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/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD$";
#endif /* LIBC_SCCS and not lint */
#include <ieeefp.h>
fp_except
fpsetsticky(sticky)
fp_except sticky;
{
fp_except old;
fp_except new;
__asm__("cfc1 %0,$31" : "=r" (old));
new = old;
new &= ~(0x1f << 2);
new |= ((sticky & 0x1f) << 2);
__asm__("ctc1 %0,$31" : : "r" (new));
return (old >> 2) & 0x1f;
}

73
lib/libc/mips/gen/frexp.c Normal file
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/*-
* 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 rcsid[] = "$OpenBSD: frexp.c,v 1.3 1997/07/23 20:55:24 kstailey Exp $";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <machine/endian.h>
#include <math.h>
double
frexp(value, eptr)
double value;
int *eptr;
{
union {
double v;
struct {
#if BYTE_ORDER == LITTLE_ENDIAN
u_int u_mant2 : 32;
u_int u_mant1 : 20;
u_int u_exp : 11;
u_int u_sign : 1;
#else
u_int u_sign : 1;
u_int u_exp : 11;
u_int u_mant1 : 20;
u_int u_mant2 : 32;
#endif
} 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);
}
}

15
lib/libc/mips/gen/infinity.c Normal file
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/* infinity.c */
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: infinity.c,v 1.2 1996/08/19 08:16:01 tholo Exp $";
#endif /* LIBC_SCCS and not lint */
#include <math.h>
#include <sys/types.h>
/* bytes for +Infinity on a MIPS */
#if BYTE_ORDER == BIG_ENDIAN
char __infinity[] = { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 };
#else
char __infinity[] = { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f };
#endif

95
lib/libc/mips/gen/isinf.S Normal file
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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
#define DEXP_INF 0x7ff
/*
* isnan(x)
* double x;
*
* Return true if x is a NAN.
*/
LEAF(isnan)
.set noreorder
mfc1 v1, $f13 # get MSW of x
mfc1 t3, $f12 # get LSW of x
sll t1, v1, 1 # get x exponent
srl t1, t1, 32 - 11
bne t1, DEXP_INF, 2f # is it a finite number?
sll t2, v1, 32 - 20 # get x fraction
bne t3, zero, 1f # is it a NAN?
nop
beq t2, zero, 2f # its infinity
nop
1:
j ra
li v0, 1 # x is a NAN
2:
j ra
move v0, zero # x is NOT a NAN
END(isnan)
/*
* isinf(x)
* double x;
*
* Return true if x is infinity.
*/
LEAF(isinf)
.set noreorder
mfc1 v1, $f13 # get MSW of x
mfc1 t3, $f12 # get LSW of x
sll t1, v1, 1 # get x exponent
srl t1, t1, 32 - 11
bne t1, DEXP_INF, 1f # is it a finite number?
sll t2, v1, 32 - 20 # get x fraction
bne t3, zero, 1f # is it a NAN?
nop
bne t2, zero, 1f # is it a NAN?
nop
j ra
li v0, 1 # x is infinity
1:
j ra
move v0, zero # x is NOT infinity
END(isinf)

217
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
#define DEXP_INF 0x7ff
#define DEXP_BIAS 1023
#define DEXP_MIN -1022
#define DEXP_MAX 1023
#define DFRAC_BITS 52
#define DIMPL_ONE 0x00100000
#define DLEAD_ZEROS 31 - 20
#define STICKYBIT 1
#define GUARDBIT 0x80000000
#define DSIGNAL_NAN 0x00040000
#define DQUIET_NAN0 0x0007ffff
#define DQUIET_NAN1 0xffffffff
/*
* double ldexp(x, N)
* double x; int N;
*
* Return x * (2**N), for integer values N.
*/
LEAF(ldexp)
.set reorder
mfc1 v1, $f13 # get MSW of x
mfc1 t3, $f12 # get LSW of x
sll t1, v1, 1 # get x exponent
srl t1, t1, 32 - 11
beq t1, DEXP_INF, 9f # is it a NAN or infinity?
beq t1, zero, 1f # zero or denormalized number?
addu t1, t1, a2 # scale exponent
sll v0, a2, 20 # position N for addition
bge t1, DEXP_INF, 8f # overflow?
addu v0, v0, v1 # multiply by (2**N)
ble t1, zero, 4f # underflow?
mtc1 v0, $f1 # save MSW of result
mtc1 t3, $f0 # save LSW of result
j ra
1:
sll t2, v1, 32 - 20 # get x fraction
srl t2, t2, 32 - 20
srl t0, v1, 31 # get x sign
bne t2, zero, 1f
beq t3, zero, 9f # result is zero
1:
/*
* Find out how many leading zero bits are in t2,t3 and put in t9.
*/
move v0, t2
move t9, zero
bne t2, zero, 1f
move v0, t3
addu t9, 32
1:
srl t4, v0, 16
bne t4, zero, 1f
addu t9, 16
sll v0, 16
1:
srl t4, v0, 24
bne t4, zero, 1f
addu t9, 8
sll v0, 8
1:
srl t4, v0, 28
bne t4, zero, 1f
addu t9, 4
sll v0, 4
1:
srl t4, v0, 30
bne t4, zero, 1f
addu t9, 2
sll v0, 2
1:
srl t4, v0, 31
bne t4, zero, 1f
addu t9, 1
/*
* Now shift t2,t3 the correct number of bits.
*/
1:
subu t9, t9, DLEAD_ZEROS # dont count normal leading zeros
li t1, DEXP_MIN + DEXP_BIAS
subu t1, t1, t9 # adjust exponent
addu t1, t1, a2 # scale exponent
li v0, 32
blt t9, v0, 1f
subu t9, t9, v0 # shift fraction left >= 32 bits
sll t2, t3, t9
move t3, zero
b 2f
1:
subu v0, v0, t9 # shift fraction left < 32 bits
sll t2, t2, t9
srl t4, t3, v0
or t2, t2, t4
sll t3, t3, t9
2:
bge t1, DEXP_INF, 8f # overflow?
ble t1, zero, 4f # underflow?
sll t2, t2, 32 - 20 # clear implied one bit
srl t2, t2, 32 - 20
3:
sll t1, t1, 31 - 11 # reposition exponent
sll t0, t0, 31 # reposition sign
or t0, t0, t1 # put result back together
or t0, t0, t2
mtc1 t0, $f1 # save MSW of result
mtc1 t3, $f0 # save LSW of result
j ra
4:
li v0, 0x80000000
ble t1, -52, 7f # is result too small for denorm?
sll t2, v1, 31 - 20 # clear exponent, extract fraction
or t2, t2, v0 # set implied one bit
blt t1, -30, 2f # will all bits in t3 be shifted out?
srl t2, t2, 31 - 20 # shift fraction back to normal position
subu t1, t1, 1
sll t4, t2, t1 # shift right t2,t3 based on exponent
srl t8, t3, t1 # save bits shifted out
negu t1
srl t3, t3, t1
or t3, t3, t4
srl t2, t2, t1
bge t8, zero, 1f # does result need to be rounded?
addu t3, t3, 1 # round result
sltu t4, t3, 1
sll t8, t8, 1
addu t2, t2, t4
bne t8, zero, 1f # round result to nearest
and t3, t3, ~1
1:
mtc1 t3, $f0 # save denormalized result (LSW)
mtc1 t2, $f1 # save denormalized result (MSW)
bge v1, zero, 1f # should result be negative?
neg.d $f0, $f0 # negate result
1:
j ra
2:
mtc1 zero, $f1 # exponent and upper fraction
addu t1, t1, 20 # compute amount to shift right by
sll t8, t2, t1 # save bits shifted out
negu t1
srl t3, t2, t1
bge t8, zero, 1f # does result need to be rounded?
addu t3, t3, 1 # round result
sltu t4, t3, 1
sll t8, t8, 1
mtc1 t4, $f1 # exponent and upper fraction
bne t8, zero, 1f # round result to nearest
and t3, t3, ~1
1:
mtc1 t3, $f0
bge v1, zero, 1f # is result negative?
neg.d $f0, $f0 # negate result
1:
j ra
7:
mtc1 zero, $f0 # result is zero
mtc1 zero, $f1
beq t0, zero, 1f # is result positive?
neg.d $f0, $f0 # negate result
1:
j ra
8:
li t1, 0x7ff00000 # result is infinity (MSW)
mtc1 t1, $f1
mtc1 zero, $f0 # result is infinity (LSW)
bge v1, zero, 1f # should result be negative infinity?
neg.d $f0, $f0 # result is negative infinity
1:
add.d $f0, $f0 # cause overflow faults if enabled
j ra
9:
mov.d $f0, $f12 # yes, result is just x
j ra
END(ldexp)

75
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/*-
* Copyright (c) 1991, 1993, 1995
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* double modf(val, iptr)
* double val, *iptr;
* returns: xxx and n (in *iptr) where val == n.xxx
*/
LEAF(modf)
.set reorder
cfc1 t0, $31 # get the control register
li.d $f2, 4503599627370496e0 # f2 <- 2^52
or t1, t0, 0x3 # set rounding mode to round to zero
xor t1, t1, 0x2 # (i.e., 01)
ctc1 t1, $31
mov.d $f0, $f12 # f0 <- f12
abs.d $f4, $f12 # f4 <- |f12|
c.olt.d $f4, $f2 # f4 ? < f2
bc1f 1f # leave f0 alone if Nan, infinity
# or >=2^52
c.eq.d $f12,$f4 # was f12 positive ?
add.d $f4,$f2,$f4 # round off to integer
bc1f 2f # No -> will have to negate result
sub.d $f0,$f4,$f2 # Remove fudge factor
j 1f # integer fraction got
2:
sub.d $f0,$f2,$f4 # Remove fudge factor and negate
1:
ctc1 t0, $31 # restore old rounding mode
s.d $f0, 0(a2) # save the integer part
sub.d $f0, $f12, $f0 # subtract val - integer part
j ra
END(modf)

128
lib/libc/mips/gen/setjmp.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <sys/syscall.h>
#include <machine/asm.h>
#include <machine/regnum.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD: setjmp.S,v 1.6 1997/07/23 20:55:25 kstailey Exp $"
#endif /* LIBC_SCCS */
/*
* 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,
* and a struct sigcontext, see <signal.h>
*/
#define SETJMP_FRAME_SIZE (STAND_FRAME_SIZE + 12)
NON_LEAF(setjmp, SETJMP_FRAME_SIZE, ra)
.mask 0x80000000, (STAND_RA_OFFSET - STAND_FRAME_SIZE)
subu sp, sp, SETJMP_FRAME_SIZE # allocate stack frame
#ifdef ABICALLS
.cprestore 16
#endif
.set reorder
sw ra, STAND_RA_OFFSET(sp) # save state
sw a0, SETJMP_FRAME_SIZE(sp)
move a0, zero # get current signal mask
jal _C_LABEL(sigblock)
lw v1, SETJMP_FRAME_SIZE(sp) # v1 = jmpbuf
sw v0, (1 * 4)(v1) # save sc_mask = sigblock(0)
move a0, zero
addu a1, sp, STAND_FRAME_SIZE # pointer to struct sigaltstack
jal _C_LABEL(sigaltstack)
lw a0, SETJMP_FRAME_SIZE(sp) # restore jmpbuf
lw v1, STAND_FRAME_SIZE+8(sp) # get old ss_onstack
and v1, v1, 1 # extract onstack flag
sw v1, 0(a0) # save it in sc_onstack
lw ra, STAND_RA_OFFSET(sp)
addu sp, sp, SETJMP_FRAME_SIZE
blt v0, zero, botch # check for sigstack() error
sw ra, (2 * 4)(a0) # sc_pc = return address
li v0, 0xACEDBADE # sigcontext magic number
sw v0, ((ZERO + 3) * 4)(a0) # saved in sc_regs[0]
sw s0, ((S0 + 3) * 4)(a0)
sw s1, ((S1 + 3) * 4)(a0)
sw s2, ((S2 + 3) * 4)(a0)
sw s3, ((S3 + 3) * 4)(a0)
sw s4, ((S4 + 3) * 4)(a0)
sw s5, ((S5 + 3) * 4)(a0)
sw s6, ((S6 + 3) * 4)(a0)
sw s7, ((S7 + 3) * 4)(a0)
sw gp, ((GP + 3) * 4)(a0)
sw sp, ((SP + 3) * 4)(a0)
sw s8, ((S8 + 3) * 4)(a0)
li v0, 1 # be nice if we could tell
sw v0, (37 * 4)(a0) # sc_fpused = 1
cfc1 v0, $31
swc1 $f20, ((20 + 38) * 4)(a0)
swc1 $f21, ((21 + 38) * 4)(a0)
swc1 $f22, ((22 + 38) * 4)(a0)
swc1 $f23, ((23 + 38) * 4)(a0)
swc1 $f24, ((24 + 38) * 4)(a0)
swc1 $f25, ((25 + 38) * 4)(a0)
swc1 $f26, ((26 + 38) * 4)(a0)
swc1 $f27, ((27 + 38) * 4)(a0)
swc1 $f28, ((28 + 38) * 4)(a0)
swc1 $f29, ((29 + 38) * 4)(a0)
swc1 $f30, ((30 + 38) * 4)(a0)
swc1 $f31, ((31 + 38) * 4)(a0)
sw v0, ((32 + 38) * 4)(a0)
move v0, zero
j ra
END(setjmp)
LEAF(longjmp)
#ifdef ABICALLS
subu sp, sp, 32
.cprestore 16
#endif
.set reorder
sw a1, ((V0 + 3) * 4)(a0) # save return value in sc_regs[V0]
li v0, SYS_sigreturn
syscall
botch:
jal _C_LABEL(longjmperror)
jal _C_LABEL(abort)
END(longjmp)

78
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/*-
* Copyright (c) 1991, 1993, 1995,
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Havard Eidnes.
*
* 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.
*/
#include <sys/syscall.h>
#include <machine/regnum.h>
#include <machine/asm.h>
#include <machine/setjmp.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* C library -- sigsetjmp, siglongjmp
*
* siglongjmp(a,v)
* will generate a "return(v)" from
* the last call to
* sigsetjmp(a, savemask)
* by restoring registers from the stack,
* and dependent on savemask restores the
* signal mask.
*/
LEAF(sigsetjmp)
.set reorder
sw a1, (_JBLEN*4)(a0) # save "savemask"
bne a1, 0x0, 1f # do saving of signal mask?
la t9, _setjmp
jr t9
1: la t9, setjmp
jr t9
END(sigsetjmp)
LEAF(siglongjmp)
.set reorder
lw t0, (_JBLEN * 4)(a0) # get "savemask"
bne t0, 0x0, 1f # restore signal mask?
la t9, _longjmp
jr t9
1: la t9, longjmp
jr t9
END(siglongjmp)

4
lib/libc/mips/net/Makefile.inc Normal file
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# $OpenBSD: Makefile.inc,v 1.1 1995/02/25 14:59:01 cgd Exp $
SRCS+= htonl.S htons.S
LSRCS+= htonl.c htons.c

69
lib/libc/mips/net/htonl.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* netorder = htonl(hostorder)
* hostorder = ntohl(netorder)
*/
ALEAF(ntohl)
NLEAF(htonl) # a0 = 0x11223344, return 0x44332211
.set reorder
#ifdef MIPSEL
srl v1, a0, 24 # v1 = 0x00000011
sll v0, a0, 24 # v0 = 0x44000000
or v0, v0, v1
and v1, a0, 0xff00
sll v1, v1, 8 # v1 = 0x00330000
or v0, v0, v1
srl v1, a0, 8
and v1, v1, 0xff00 # v1 = 0x00002200
or v0, v0, v1
#else
#ifdef MIPSEB
move v0, a0
#else
ERROR
#endif
#endif
j ra
END(htonl)

65
lib/libc/mips/net/htons.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* netorder = htons(hostorder)
* hostorder = ntohs(netorder)
*/
ALEAF(ntohs)
NLEAF(htons)
.set reorder
#ifdef MIPSEL
srl v0, a0, 8
and v0, v0, 0xff
sll v1, a0, 8
and v1, v1, 0xff00
or v0, v0, v1
#else
#ifdef MIPSEB
move v0, a0
#else
ERROR
#endif
#endif
j ra
END(htons)

0
lib/libc/mips/stdlib/Makefile.inc Normal file
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7
lib/libc/mips/string/Makefile.inc Normal file
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# $OpenBSD: Makefile.inc,v 1.1 1995/03/20 14:45:47 mycroft Exp $
SRCS+= bcmp.S bcopy.S bzero.S ffs.S index.S memchr.c memcmp.c memset.c \
rindex.S strcat.c strcmp.S strcpy.c strcspn.c strlen.S \
strncat.c strncmp.c strncpy.c strpbrk.c strsep.c \
strspn.c strstr.c swab.c
LSRCS+= bcmp.c bcopy.c bzero.c ffs.c index.c rindex.c strcmp.c strlen.c

120
lib/libc/mips/string/bcmp.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/* bcmp(s1, s2, n) */
LEAF(bcmp)
.set noreorder
blt a2, 16, small # is it worth any trouble?
xor v0, a0, a1 # compare low two bits of addresses
and v0, v0, 3
subu a3, zero, a1 # compute # bytes to word align address
bne v0, zero, unaligned # not possible to align addresses
and a3, a3, 3
beq a3, zero, 1f
subu a2, a2, a3 # subtract from remaining count
move v0, v1 # init v0,v1 so unmodified bytes match
LWHI v0, 0(a0) # read 1, 2, or 3 bytes
LWHI v1, 0(a1)
addu a1, a1, a3
bne v0, v1, nomatch
addu a0, a0, a3
1:
and a3, a2, ~3 # compute number of whole words left
subu a2, a2, a3 # which has to be >= (16-3) & ~3
addu a3, a3, a0 # compute ending address
2:
lw v0, 0(a0) # compare words
lw v1, 0(a1)
addu a0, a0, 4
bne v0, v1, nomatch
addu a1, a1, 4
bne a0, a3, 2b
nop
b small # finish remainder
nop
unaligned:
beq a3, zero, 2f
subu a2, a2, a3 # subtract from remaining count
addu a3, a3, a0 # compute ending address
1:
lbu v0, 0(a0) # compare bytes until a1 word aligned
lbu v1, 0(a1)
addu a0, a0, 1
bne v0, v1, nomatch
addu a1, a1, 1
bne a0, a3, 1b
nop
2:
and a3, a2, ~3 # compute number of whole words left
subu a2, a2, a3 # which has to be >= (16-3) & ~3
addu a3, a3, a0 # compute ending address
3:
LWHI v0, 0(a0) # compare words a0 unaligned, a1 aligned
LWLO v0, 3(a0)
lw v1, 0(a1)
addu a0, a0, 4
bne v0, v1, nomatch
addu a1, a1, 4
bne a0, a3, 3b
nop
small:
ble a2, zero, match
addu a3, a2, a0 # compute ending address
1:
lbu v0, 0(a0)
lbu v1, 0(a1)
addu a0, a0, 1
bne v0, v1, nomatch
addu a1, a1, 1
bne a0, a3, 1b
nop
match:
j ra
move v0, zero
nomatch:
j ra
li v0, 1
.set reorder
END(bcmp)

127
lib/libc/mips/string/bcopy.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/* bcopy(s1, s2, n) */
LEAF(bcopy)
.set noreorder
addu t0, a0, a2 # t0 = end of s1 region
sltu t1, a1, t0
sltu t2, a0, a1
and t1, t1, t2 # t1 = true if from < to < (from+len)
beq t1, zero, forward # non overlapping, do forward copy
slt t2, a2, 12 # check for small copy
ble a2, zero, 2f
addu t1, a1, a2 # t1 = end of to region
1:
lb v0, -1(t0) # copy bytes backwards,
subu t0, t0, 1 # doesnt happen often so do slow way
subu t1, t1, 1
bne t0, a0, 1b
sb v0, 0(t1)
2:
j ra
nop
forward:
bne t2, zero, smallcpy # do a small bcopy
xor v0, a0, a1 # compare low two bits of addresses
and v0, v0, 3
subu a3, zero, a1 # compute # bytes to word align address
beq v0, zero, aligned # addresses can be word aligned
and a3, a3, 3
beq a3, zero, 1f
subu a2, a2, a3 # subtract from remaining count
LWHI v0, 0(a0) # get next 4 bytes (unaligned)
LWLO v0, 3(a0)
addu a0, a0, a3
SWHI v0, 0(a1) # store 1, 2, or 3 bytes to align a1
addu a1, a1, a3
1:
and v0, a2, 3 # compute number of words left
subu a3, a2, v0
move a2, v0
addu a3, a3, a0 # compute ending address
2:
LWHI v0, 0(a0) # copy words a0 unaligned, a1 aligned
LWLO v0, 3(a0)
addu a0, a0, 4
addu a1, a1, 4
bne a0, a3, 2b
sw v0, -4(a1)
b smallcpy
nop
aligned:
beq a3, zero, 1f
subu a2, a2, a3 # subtract from remaining count
LWHI v0, 0(a0) # copy 1, 2, or 3 bytes to align
addu a0, a0, a3
SWHI v0, 0(a1)
addu a1, a1, a3
1:
and v0, a2, 3 # compute number of whole words left
subu a3, a2, v0
move a2, v0
addu a3, a3, a0 # compute ending address
2:
lw v0, 0(a0) # copy words
addu a0, a0, 4
addu a1, a1, 4
bne a0, a3, 2b
sw v0, -4(a1)
smallcpy:
ble a2, zero, 2f
addu a3, a2, a0 # compute ending address
1:
lbu v0, 0(a0) # copy bytes
addu a0, a0, 1
addu a1, a1, 1
bne a0, a3, 1b
sb v0, -1(a1)
2:
j ra
nop
.set reorder
END(bcopy)

74
lib/libc/mips/string/bzero.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/* bzero(s1, n) */
LEAF(bzero)
.set noreorder
blt a1, 12, smallclr # small amount to clear?
subu a3, zero, a0 # compute # bytes to word align address
and a3, a3, 3
beq a3, zero, 1f # skip if word aligned
subu a1, a1, a3 # subtract from remaining count
SWHI zero, 0(a0) # clear 1, 2, or 3 bytes to align
addu a0, a0, a3
1:
and v0, a1, 3 # compute number of words left
subu a3, a1, v0
move a1, v0
addu a3, a3, a0 # compute ending address
2:
addu a0, a0, 4 # clear words
bne a0, a3, 2b # unrolling loop doesnt help
sw zero, -4(a0) # since we are limited by memory speed
smallclr:
ble a1, zero, 2f
addu a3, a1, a0 # compute ending address
1:
addu a0, a0, 1 # clear bytes
bne a0, a3, 1b
sb zero, -1(a0)
2:
j ra
nop
END(bzero)

57
lib/libc/mips/string/ffs.S Normal file
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@ -0,0 +1,57 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/* bit = ffs(value) */
LEAF(ffs)
.set reorder
move v0, zero
beq a0, zero, done
1:
and v1, a0, 1 # bit set?
addu v0, v0, 1
srl a0, a0, 1
beq v1, zero, 1b # no, continue
done:
j ra
END(ffs)

56
lib/libc/mips/string/index.S Normal file
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@ -0,0 +1,56 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
LEAF(index)
.set reorder
lbu a2, 0(a0) # get a byte
addu a0, a0, 1
beq a2, a1, fnd
bne a2, zero, _C_LABEL(index)
notfnd:
move v0, zero
j ra
fnd:
subu v0, a0, 1
j ra
END(index)

55
lib/libc/mips/string/rindex.S Normal file
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@ -0,0 +1,55 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
LEAF(rindex)
.set reorder
move v0, zero # default if not found
1:
lbu a3, 0(a0) # get a byte
addu a0, a0, 1
bne a3, a1, 2f
subu v0, a0, 1 # save address of last match
2:
bne a3, zero, 1b # continue if not end
j ra
END(rindex)

66
lib/libc/mips/string/strcmp.S Normal file
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@ -0,0 +1,66 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
/*
* NOTE: this version assumes unsigned chars in order to be "8 bit clean".
*/
LEAF(strcmp)
.set reorder
1:
lbu t0, 0(a0) # get two bytes and compare them
lbu t1, 0(a1)
beq t0, zero, LessOrEq # end of first string?
bne t0, t1, NotEq
lbu t0, 1(a0) # unroll loop
lbu t1, 1(a1)
add a0, a0, 2
beq t0, zero, LessOrEq # end of first string?
add a1, a1, 2
beq t0, t1, 1b
NotEq:
subu v0, t0, t1
j ra
LessOrEq:
subu v0, zero, t1
j ra
END(strcmp)

53
lib/libc/mips/string/strlen.S Normal file
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@ -0,0 +1,53 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* LIBC_SCCS */
LEAF(strlen)
.set reorder
addu v1, a0, 1
1:
lb v0, 0(a0) # get byte from string
addu a0, a0, 1 # increment pointer
bne v0, zero, 1b # continue if not end
subu v0, a0, v1 # compute length - 1 for '\0' char
j ra
END(strlen)

0
lib/libc/mips/sys/Makefile.inc Normal file
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63
lib/libc/mips/sys/Ovfork.S Normal file
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@ -0,0 +1,63 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
/*
* pid = vfork();
*
* v1 == 0 in parent process, v1 == 1 in child process.
* v0 == pid of child in parent, v0 == pid of parent in child.
*/
LEAF(vfork)
.set reorder
li v0, SYS_vfork # system call number for vfork
syscall
beq a3, zero, 1f # jump if no errors
la t9, cerror
jr t9
1:
beq v1, zero, 2f # parent process ?
move v0, zero # return zero in child
2:
j ra
END(vfork)

81
lib/libc/mips/sys/brk.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
.globl minbrk
.globl curbrk
.data
minbrk: .word _C_LABEL(end)
.text
LEAF(brk)
.set reorder
lw v0, minbrk
bltu a0, v0, 1f
la t9, _brk
jr t9
1:
move a0, v0 # dont allow break < minbrk
li v0, SYS_break
syscall
bne a3, zero, 2f
sw a0, curbrk
move v0, zero
j ra
2:
la t9, _C_LABEL(cerror)
jr t9
END(brk)
LEAF(_brk)
.set reorder
li v0, SYS_break
syscall
bne a3, zero, 1f
sw a0, curbrk
move v0, zero
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(brk)

51
lib/libc/mips/sys/cerror.S Normal file
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@ -0,0 +1,51 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
.globl _C_LABEL(errno)
LEAF(cerror)
.set noreorder
sw v0, _C_LABEL(errno)
li v0, -1
j ra
li v1, -1
END(cerror)

53
lib/libc/mips/sys/exect.S Normal file
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@ -0,0 +1,53 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(exect)
.set reorder
li v0, SYS_execve
syscall
bne a3, zero, 1f
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(exect)

56
lib/libc/mips/sys/fork.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(fork)
.set reorder
li v0, SYS_fork # pid = fork()
syscall
bne a3, zero, 2f
beq v1, zero, 1f # v1 == 0 in parent, 1 in child
move v0, zero
1:
j ra
2:
la t9, _C_LABEL(cerror)
jr t9
END(fork)

56
lib/libc/mips/sys/pipe.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(pipe)
.set reorder
li v0, SYS_pipe # pipe(fildes) int fildes[2];
syscall
bne a3, zero, 1f
sw v0, 0(a0) # store the two file descriptors
sw v1, 4(a0)
move v0, zero
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(pipe)

54
lib/libc/mips/sys/ptrace.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(ptrace)
.set reorder
sw zero, _C_LABEL(errno)
li v0, SYS_ptrace
syscall
bne a3, zero, 1f
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(ptrace)

64
lib/libc/mips/sys/sbrk.S Normal file
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/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
.globl curbrk
.data
curbrk: .word _C_LABEL(end)
.text
LEAF(sbrk)
.set reorder
lw v1, curbrk
li v0, SYS_break
addu a0, a0, v1 # compute current break
syscall
bne a3, zero, 1f
move v0, v1 # return old val of curbrk from above
sw a0, curbrk # save current val of curbrk from above
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(sbrk)

55
lib/libc/mips/sys/setlogin.S Normal file
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@ -0,0 +1,55 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(setlogin)
.set reorder
li v0, SYS_setlogin # setlogin(name)
syscall
bne a3, zero, 1f
sw zero, _C_LABEL(__logname_valid) # in getlogin()
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(setlogin)

55
lib/libc/mips/sys/sigpending.S Normal file
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@ -0,0 +1,55 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(sigpending)
.set reorder
li v0, SYS_sigpending # setlogin(name)
syscall
bne a3, zero, 1f
sw v0, 0(a0)
move v0, zero
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(sigpending)

63
lib/libc/mips/sys/sigprocmask.S Normal file
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@ -0,0 +1,63 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(sigprocmask) # sigprocmask(how, new, old) sigset_t *new, *old;
.set reorder
bne a1, zero, gotptr # if new sigset pointer not null
li a0, 1 # how = SIG_BLOCK
b doit # mask = zero
gotptr:
lw a1, 0(a1) # indirect to new mask arg
doit:
li v0, SYS_sigprocmask
syscall
bne a3, zero, err
beq a2, zero, out # test if old mask requested
sw v0, 0(a2) # store old mask
out:
move v0, zero
j ra
err:
la t9, _C_LABEL(cerror)
jr t9
END(sigprocmask)

48
lib/libc/mips/sys/sigreturn.S Normal file
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@ -0,0 +1,48 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
/*
* We must preserve the state of the registers as the user has set them up.
*/
RSYSCALL(sigreturn)

55
lib/libc/mips/sys/sigsuspend.S Normal file
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@ -0,0 +1,55 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
LEAF(sigsuspend)
.set reorder
lw a0, 0(a0) # indirect to mask arg
li v0, SYS_sigsuspend
syscall
bne a3, zero, 1f
move v0, zero # should not happen
j ra
1:
la t9, _C_LABEL(cerror)
jr t9
END(sigsuspend)

47
lib/libc/mips/sys/syscall.S Normal file
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@ -0,0 +1,47 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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.
*/
#include "SYS.h"
#if defined(SYSLIBC_SCCS)
.text
.asciz "$OpenBSD$"
#endif /* SYSLIBC_SCCS */
#define SYS_syscall 0
RSYSCALL(syscall)