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Replace use of the pipe(2) system call with pipe2(2) with a zero flags

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value.

This eliminates the need for machine dependant assembly wrappers for
pipe(2).

It also make passing an invalid address to pipe(2) return EFAULT rather
than triggering a segfault.  Document this behavior (which was already
true for pipe2(2), but undocumented).

Reviewed by:	andrew
Approved by:	re (gjb)
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D6815
This commit is contained in:
Brooks Davis 2016-06-22 21:11:27 +00:00
parent be20fc2e90
commit b60998c633
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=302092
20 changed files with 29 additions and 457 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/libc/aarch64/sys/Makefile.inc
View File

@ -6,7 +6,6 @@ SRCS+= __vdso_gettc.c
#MDASM= ptrace.S #MDASM= ptrace.S
MDASM= cerror.S \ MDASM= cerror.S \
pipe.S \
shmat.S \ shmat.S \
sigreturn.S \ sigreturn.S \
syscall.S \ syscall.S \

2
lib/libc/amd64/sys/Makefile.inc
View File

@ -4,7 +4,7 @@
SRCS+= amd64_get_fsbase.c amd64_get_gsbase.c amd64_set_fsbase.c \ SRCS+= amd64_get_fsbase.c amd64_get_gsbase.c amd64_set_fsbase.c \
amd64_set_gsbase.c __vdso_gettc.c amd64_set_gsbase.c __vdso_gettc.c
MDASM= vfork.S brk.S cerror.S exect.S getcontext.S pipe.S ptrace.S \ MDASM= vfork.S brk.S cerror.S exect.S getcontext.S ptrace.S \
sbrk.S setlogin.S sigreturn.S sbrk.S setlogin.S sigreturn.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:

53
lib/libc/amd64/sys/pipe.S
View File

@ -1,53 +0,0 @@
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
* 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(SYSLIBC_SCCS) && !defined(lint)
.asciz "@(#)pipe.s 5.1 (Berkeley) 4/23/90"
#endif /* SYSLIBC_SCCS and not lint */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
WEAK_REFERENCE(__sys_pipe, _pipe)
WEAK_REFERENCE(__sys_pipe, pipe)
ENTRY(__sys_pipe)
mov $SYS_pipe,%rax
KERNCALL
jb HIDENAME(cerror)
movl %eax,(%rdi) /* %rdi is preserved by syscall */
movl %edx,4(%rdi)
movq $0,%rax
ret
END(__sys_pipe)
.section .note.GNU-stack,"",%progbits

2
lib/libc/arm/sys/Makefile.inc
View File

@ -2,7 +2,7 @@
SRCS+= __vdso_gettc.c SRCS+= __vdso_gettc.c
MDASM= Ovfork.S brk.S cerror.S pipe.S ptrace.S sbrk.S shmat.S sigreturn.S syscall.S MDASM= Ovfork.S brk.S cerror.S ptrace.S sbrk.S shmat.S sigreturn.S syscall.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o

53
lib/libc/arm/sys/pipe.S
View File

@ -1,53 +0,0 @@
/* $NetBSD: pipe.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)pipe.s 5.1 (Berkeley) 4/23/90
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
#ifdef WEAK_ALIAS
WEAK_ALIAS(pipe, _pipe)
WEAK_ALIAS(__sys_pipe, _pipe)
#endif
ENTRY(_pipe)
mov r2, r0
SYSTRAP(pipe)
bcs PIC_SYM(CERROR, PLT)
str r0, [r2, #0x0000]
str r1, [r2, #0x0004]
mov r0, #0x00000000
RET
END(_pipe)
.section .note.GNU-stack,"",%progbits

2
lib/libc/i386/sys/Makefile.inc
View File

@ -8,7 +8,7 @@ SRCS+= i386_get_fsbase.c i386_get_gsbase.c i386_get_ioperm.c i386_get_ldt.c \
i386_set_fsbase.c i386_set_gsbase.c i386_set_ioperm.c i386_set_ldt.c \ i386_set_fsbase.c i386_set_gsbase.c i386_set_ioperm.c i386_set_ldt.c \
__vdso_gettc.c __vdso_gettc.c
MDASM= Ovfork.S brk.S cerror.S exect.S getcontext.S pipe.S ptrace.S \ MDASM= Ovfork.S brk.S cerror.S exect.S getcontext.S ptrace.S \
sbrk.S setlogin.S sigreturn.S syscall.S sbrk.S setlogin.S sigreturn.S syscall.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:

49
lib/libc/i386/sys/pipe.S
View File

@ -1,49 +0,0 @@
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
* 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(SYSLIBC_SCCS) && !defined(lint)
.asciz "@(#)pipe.s 5.1 (Berkeley) 4/23/90"
#endif /* SYSLIBC_SCCS and not lint */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
SYSCALL(pipe)
movl 4(%esp),%ecx
movl %eax,(%ecx)
movl %edx,4(%ecx)
movl $0,%eax
ret
END(__sys_pipe)
.section .note.GNU-stack,"",%progbits

2
lib/libc/mips/sys/Makefile.inc
View File

@ -3,7 +3,7 @@
SRCS+= trivial-vdso_tc.c SRCS+= trivial-vdso_tc.c
MDASM= Ovfork.S brk.S cerror.S exect.S \ MDASM= Ovfork.S brk.S cerror.S exect.S \
pipe.S ptrace.S sbrk.S syscall.S ptrace.S sbrk.S syscall.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o

57
lib/libc/mips/sys/pipe.S
View File

@ -1,57 +0,0 @@
/* $NetBSD: pipe.S,v 1.11 2005/04/22 06:58:01 simonb Exp $ */
/*-
* 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. 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>
__FBSDID("$FreeBSD$");
#include "SYS.h"
#if defined(LIBC_SCCS) && !defined(lint)
ASMSTR("from: @(#)pipe.s 8.1 (Berkeley) 6/4/93")
ASMSTR("$NetBSD: pipe.S,v 1.11 2005/04/22 06:58:01 simonb Exp $")
#endif /* LIBC_SCCS and not lint */
LEAF(__sys_pipe)
WEAK_ALIAS(pipe, __sys_pipe)
WEAK_ALIAS(_pipe, __sys_pipe)
PIC_PROLOGUE(__sys_pipe)
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
PIC_RETURN()
1:
PIC_TAILCALL(__cerror)
END(__sys_pipe)

2
lib/libc/powerpc/sys/Makefile.inc
View File

@ -1,6 +1,6 @@
# $FreeBSD$ # $FreeBSD$
MDASM+= brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S MDASM+= brk.S cerror.S exect.S ptrace.S sbrk.S setlogin.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o

46
lib/libc/powerpc/sys/pipe.S
View File

@ -1,46 +0,0 @@
/*-
* Copyright (c) 2002 Peter Grehan.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $NetBSD: pipe.S,v 1.6 2000/09/28 08:38:54 kleink Exp $ */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
ENTRY(pipe)
mr %r5,%r3 /* save pointer */
li %r0,SYS_pipe
sc /* r5 is preserved */
bso 1f
stw %r3,0(%r5) /* success, store fds */
stw %r4,4(%r5)
li %r3,0
blr /* and return 0 */
1:
b PIC_PLT(HIDENAME(cerror))
END(pipe)
.section .note.GNU-stack,"",%progbits

2
lib/libc/powerpc64/sys/Makefile.inc
View File

@ -1,6 +1,6 @@
# $FreeBSD$ # $FreeBSD$
MDASM+= brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S MDASM+= brk.S cerror.S exect.S ptrace.S sbrk.S setlogin.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o

54
lib/libc/powerpc64/sys/pipe.S
View File

@ -1,54 +0,0 @@
/*-
* Copyright (c) 2002 Peter Grehan.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $NetBSD: pipe.S,v 1.6 2000/09/28 08:38:54 kleink Exp $ */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
ENTRY(pipe)
mr %r5,%r3 /* save pointer */
li %r0,SYS_pipe
sc /* r5 is preserved */
bso 1f
stw %r3,0(%r5) /* success, store fds */
stw %r4,4(%r5)
li %r3,0
blr /* and return 0 */
1:
mflr %r0
std %r0,16(%r1)
stdu %r1,-48(%r1)
bl HIDENAME(cerror)
nop
ld %r1,0(%r1)
ld %r0,16(%r1)
mtlr %r0
blr
END(pipe)
.section .note.GNU-stack,"",%progbits

1
lib/libc/riscv/sys/Makefile.inc
View File

@ -4,7 +4,6 @@ SRCS+= trivial-vdso_tc.c
#MDASM= ptrace.S #MDASM= ptrace.S
MDASM= cerror.S \ MDASM= cerror.S \
pipe.S \
shmat.S \ shmat.S \
sigreturn.S \ sigreturn.S \
syscall.S \ syscall.S \

57
lib/libc/riscv/sys/pipe.S
View File

@ -1,57 +0,0 @@
/*-
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
ENTRY(__sys_pipe)
WEAK_REFERENCE(__sys_pipe, pipe)
/* Backup the pointer passed to us */
mv a2, a0
/* Make the syscall */
_SYSCALL(pipe)
bnez t0, cerror
/* Store the result */
sw a0, 0(a2)
sw a1, 4(a2)
/* Return */
li a0, 0
ret
END(__sys_pipe)

2
lib/libc/sparc64/sys/Makefile.inc
View File

@ -12,7 +12,7 @@ SRCS+= __sparc_sigtramp_setup.c \
CFLAGS+= -I${LIBC_SRCTOP}/sparc64/fpu CFLAGS+= -I${LIBC_SRCTOP}/sparc64/fpu
MDASM+= brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S sigaction1.S MDASM+= brk.S cerror.S exect.S ptrace.S sbrk.S setlogin.S sigaction1.S
# Don't generate default code for these syscalls: # Don't generate default code for these syscalls:
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o

57
lib/libc/sparc64/sys/pipe.S
View File

@ -1,57 +0,0 @@
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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.
* 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.
*
* from: Header: pipe.s,v 1.1 91/07/06 13:05:58 torek Exp
*/
#if defined(SYSLIBC_SCCS) && !defined(lint)
.asciz "@(#)pipe.s 8.1 (Berkeley) 6/4/93"
#if 0
RCSID("$NetBSD: pipe.S,v 1.3 2000/09/28 08:38:55 kleink Exp $")
#endif
#endif /* SYSLIBC_SCCS and not lint */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
#include "SYS.h"
_SYSENTRY(pipe)
mov %o0, %o2
mov SYS_pipe, %g1
ta %xcc, ST_SYSCALL
bcc,a,pt %xcc, 1f
stw %o0, [%o2]
ERROR()
1: stw %o1, [%o2 + 4]
retl
clr %o0
_SYSEND(pipe)

2
lib/libc/sys/Makefile.inc
View File

@ -28,6 +28,8 @@ SRCS+= futimens.c utimensat.c
NOASM+= futimens.o utimensat.o NOASM+= futimens.o utimensat.o
PSEUDO+= _futimens.o _utimensat.o PSEUDO+= _futimens.o _utimensat.o
SRCS+= pipe.c
INTERPOSED = \ INTERPOSED = \
accept \ accept \
accept4 \ accept4 \

5
lib/libc/sys/pipe.2
View File

@ -28,7 +28,7 @@
.\" @(#)pipe.2 8.1 (Berkeley) 6/4/93 .\" @(#)pipe.2 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$ .\" $FreeBSD$
.\" .\"
.Dd May 1, 2013 .Dd June 22, 2016
.Dt PIPE 2 .Dt PIPE 2
.Os .Os
.Sh NAME .Sh NAME
@ -118,6 +118,9 @@ and
.Fn pipe2 .Fn pipe2
system calls will fail if: system calls will fail if:
.Bl -tag -width Er .Bl -tag -width Er
.It Bq Er EFAULT
.Ar fildes
argument points to an invalid memory location.
.It Bq Er EMFILE .It Bq Er EMFILE
Too many descriptors are active. Too many descriptors are active.
.It Bq Er ENFILE .It Bq Er ENFILE

37
lib/libc/aarch64/sys/pipe.S → lib/libc/sys/pipe.c
View File

@ -1,9 +1,10 @@
/*- /*-
* Copyright (c) 2014 The FreeBSD Foundation * Copyright (c) 2016 SRI International
* All rights reserved. * All rights reserved.
* *
* This software was developed by Andrew Turner under * This software was developed by SRI International and the University of
* sponsorship from the FreeBSD Foundation. * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
* ("CTSRD"), as part of the DARPA CRASH research programme.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -25,28 +26,22 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * 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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
*
* $FreeBSD$
*/ */
#include <machine/asm.h> #include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "SYS.h" #include <unistd.h>
ENTRY(__sys_pipe) __weak_reference(__sys_pipe, pipe);
WEAK_REFERENCE(__sys_pipe, pipe) __weak_reference(__sys_pipe, _pipe);
/* Backup the pointer passed to us */ extern int __sys_pipe2(int fildes[2], int flags);
mov x2, x0
/* Make the syscall */ int
_SYSCALL(pipe) __sys_pipe(int fildes[2])
b.cs cerror {
/* Store the result */ return (__sys_pipe2(fildes, 0));
str w0, [x2, #0] }
str w1, [x2, #4]
/* Return */
mov x0, #0
ret
END(__sys_pipe)