Replace use of the pipe(2) system call with pipe2(2) with a zero flags
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
parent
be20fc2e90
commit
b60998c633
@ -6,7 +6,6 @@ SRCS+= __vdso_gettc.c
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#MDASM= ptrace.S
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MDASM= cerror.S \
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pipe.S \
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shmat.S \
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sigreturn.S \
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syscall.S \
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@ -4,7 +4,7 @@
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SRCS+= amd64_get_fsbase.c amd64_get_gsbase.c amd64_set_fsbase.c \
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amd64_set_gsbase.c __vdso_gettc.c
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MDASM= vfork.S brk.S cerror.S exect.S getcontext.S pipe.S ptrace.S \
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MDASM= vfork.S brk.S cerror.S exect.S getcontext.S ptrace.S \
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sbrk.S setlogin.S sigreturn.S
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# Don't generate default code for these syscalls:
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@ -1,53 +0,0 @@
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(SYSLIBC_SCCS) && !defined(lint)
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.asciz "@(#)pipe.s 5.1 (Berkeley) 4/23/90"
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#endif /* SYSLIBC_SCCS and not lint */
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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#include "SYS.h"
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WEAK_REFERENCE(__sys_pipe, _pipe)
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WEAK_REFERENCE(__sys_pipe, pipe)
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ENTRY(__sys_pipe)
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mov $SYS_pipe,%rax
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KERNCALL
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jb HIDENAME(cerror)
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movl %eax,(%rdi) /* %rdi is preserved by syscall */
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movl %edx,4(%rdi)
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movq $0,%rax
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ret
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END(__sys_pipe)
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.section .note.GNU-stack,"",%progbits
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@ -2,7 +2,7 @@
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SRCS+= __vdso_gettc.c
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MDASM= Ovfork.S brk.S cerror.S pipe.S ptrace.S sbrk.S shmat.S sigreturn.S syscall.S
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MDASM= Ovfork.S brk.S cerror.S ptrace.S sbrk.S shmat.S sigreturn.S syscall.S
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# Don't generate default code for these syscalls:
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NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o
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@ -1,53 +0,0 @@
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/* $NetBSD: pipe.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
|
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
|
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* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
|
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)pipe.s 5.1 (Berkeley) 4/23/90
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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#include "SYS.h"
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#ifdef WEAK_ALIAS
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WEAK_ALIAS(pipe, _pipe)
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WEAK_ALIAS(__sys_pipe, _pipe)
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#endif
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ENTRY(_pipe)
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mov r2, r0
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SYSTRAP(pipe)
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bcs PIC_SYM(CERROR, PLT)
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str r0, [r2, #0x0000]
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str r1, [r2, #0x0004]
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mov r0, #0x00000000
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RET
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END(_pipe)
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.section .note.GNU-stack,"",%progbits
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@ -8,7 +8,7 @@ SRCS+= i386_get_fsbase.c i386_get_gsbase.c i386_get_ioperm.c i386_get_ldt.c \
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i386_set_fsbase.c i386_set_gsbase.c i386_set_ioperm.c i386_set_ldt.c \
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__vdso_gettc.c
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MDASM= Ovfork.S brk.S cerror.S exect.S getcontext.S pipe.S ptrace.S \
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MDASM= Ovfork.S brk.S cerror.S exect.S getcontext.S ptrace.S \
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sbrk.S setlogin.S sigreturn.S syscall.S
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# Don't generate default code for these syscalls:
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@ -1,49 +0,0 @@
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(SYSLIBC_SCCS) && !defined(lint)
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.asciz "@(#)pipe.s 5.1 (Berkeley) 4/23/90"
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#endif /* SYSLIBC_SCCS and not lint */
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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#include "SYS.h"
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SYSCALL(pipe)
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movl 4(%esp),%ecx
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movl %eax,(%ecx)
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movl %edx,4(%ecx)
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movl $0,%eax
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ret
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END(__sys_pipe)
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.section .note.GNU-stack,"",%progbits
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@ -3,7 +3,7 @@
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SRCS+= trivial-vdso_tc.c
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MDASM= Ovfork.S brk.S cerror.S exect.S \
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pipe.S ptrace.S sbrk.S syscall.S
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ptrace.S sbrk.S syscall.S
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# Don't generate default code for these syscalls:
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NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o vfork.o yield.o
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@ -1,57 +0,0 @@
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/* $NetBSD: pipe.S,v 1.11 2005/04/22 06:58:01 simonb Exp $ */
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/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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__FBSDID("$FreeBSD$");
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#include "SYS.h"
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#if defined(LIBC_SCCS) && !defined(lint)
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ASMSTR("from: @(#)pipe.s 8.1 (Berkeley) 6/4/93")
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ASMSTR("$NetBSD: pipe.S,v 1.11 2005/04/22 06:58:01 simonb Exp $")
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#endif /* LIBC_SCCS and not lint */
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LEAF(__sys_pipe)
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WEAK_ALIAS(pipe, __sys_pipe)
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WEAK_ALIAS(_pipe, __sys_pipe)
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PIC_PROLOGUE(__sys_pipe)
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li v0, SYS_pipe # pipe(fildes) int fildes[2];
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syscall
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bne a3, zero, 1f
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sw v0, 0(a0) # store the two file descriptors
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sw v1, 4(a0)
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move v0, zero
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PIC_RETURN()
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||||
1:
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PIC_TAILCALL(__cerror)
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END(__sys_pipe)
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@ -1,6 +1,6 @@
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# $FreeBSD$
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MDASM+= brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S
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MDASM+= brk.S cerror.S exect.S ptrace.S sbrk.S setlogin.S
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||||
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||||
# Don't generate default code for these syscalls:
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||||
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o
|
||||
|
||||
@ -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
|
||||
@ -1,6 +1,6 @@
|
||||
# $FreeBSD$
|
||||
|
||||
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:
|
||||
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o
|
||||
|
||||
@ -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
|
||||
@ -4,7 +4,6 @@ SRCS+= trivial-vdso_tc.c
|
||||
|
||||
#MDASM= ptrace.S
|
||||
MDASM= cerror.S \
|
||||
pipe.S \
|
||||
shmat.S \
|
||||
sigreturn.S \
|
||||
syscall.S \
|
||||
|
||||
@ -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)
|
||||
@ -12,7 +12,7 @@ SRCS+= __sparc_sigtramp_setup.c \
|
||||
|
||||
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:
|
||||
NOASM= break.o exit.o getlogin.o openbsd_poll.o sstk.o yield.o
|
||||
|
||||
@ -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)
|
||||
@ -28,6 +28,8 @@ SRCS+= futimens.c utimensat.c
|
||||
NOASM+= futimens.o utimensat.o
|
||||
PSEUDO+= _futimens.o _utimensat.o
|
||||
|
||||
SRCS+= pipe.c
|
||||
|
||||
INTERPOSED = \
|
||||
accept \
|
||||
accept4 \
|
||||
|
||||
@ -28,7 +28,7 @@
|
||||
.\" @(#)pipe.2 8.1 (Berkeley) 6/4/93
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd May 1, 2013
|
||||
.Dd June 22, 2016
|
||||
.Dt PIPE 2
|
||||
.Os
|
||||
.Sh NAME
|
||||
@ -118,6 +118,9 @@ and
|
||||
.Fn pipe2
|
||||
system calls will fail if:
|
||||
.Bl -tag -width Er
|
||||
.It Bq Er EFAULT
|
||||
.Ar fildes
|
||||
argument points to an invalid memory location.
|
||||
.It Bq Er EMFILE
|
||||
Too many descriptors are active.
|
||||
.It Bq Er ENFILE
|
||||
|
||||
@ -1,9 +1,10 @@
|
||||
/*-
|
||||
* Copyright (c) 2014 The FreeBSD Foundation
|
||||
* Copyright (c) 2016 SRI International
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software was developed by Andrew Turner under
|
||||
* sponsorship from the FreeBSD Foundation.
|
||||
* This software was 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.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
@ -25,28 +26,22 @@
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <machine/asm.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#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 */
|
||||
mov x2, x0
|
||||
extern int __sys_pipe2(int fildes[2], int flags);
|
||||
|
||||
/* Make the syscall */
|
||||
_SYSCALL(pipe)
|
||||
b.cs cerror
|
||||
int
|
||||
__sys_pipe(int fildes[2])
|
||||
{
|
||||
|
||||
/* Store the result */
|
||||
str w0, [x2, #0]
|
||||
str w1, [x2, #4]
|
||||
|
||||
/* Return */
|
||||
mov x0, #0
|
||||
ret
|
||||
END(__sys_pipe)
|
||||
return (__sys_pipe2(fildes, 0));
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user