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Mark exect(3) obsolete and bind it to plain execve(2) on all platforms

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The original exect(2) from BSD4.2 was enabling bit for tracing
(single-step mode) and calling execve(2). The purpose of it was to generate
a signal for a tracer once the application will change its image to a new
program.

This approach no longer works as:
 - exect(2) traces (single-steps) libc and it requires hundreds or
   thousands steps before entering a new image
 - it's vax and x86 specific code
 - this functionality has been moved to the kernel - once a process is
   traced it will generate SIGTRAP with si_code TRAP_EXEC and route it to
   its debugger
 - the side effects and unportability make this interface unusable
 - there are no known users of this interface
 - it apparently never worked better since day0 of NetBSD ("day0 bug")

Users are requested to move to other execve(2) variants. Calling current
execve(2) as it is the most similar behavior to this one from BSD4.2.

Discussed several times on mailing lists and in PR/51700.

Add warning to exect(3) telling about marking this function obsolete.

This function is prepared to be removed in next libc major bump.

Sponsored by <The NetBSD Foundation>
This commit is contained in:
kamil 2017-02-07 19:29:39 +00:00
parent 44fe74158a
commit 5acf460d25
21 changed files with 48 additions and 600 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
lib/libc/arch/aarch64/sys/exect.S
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@ -1,36 +0,0 @@
/* $NetBSD: exect.S,v 1.1 2014/08/10 05:47:37 matt 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: @(#)exect.s 5.1 (Berkeley) 4/23/90
*/
#include "SYS.h"
PSEUDO(exect,execve)

35
lib/libc/arch/alpha/sys/exect.S
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@ -1,35 +0,0 @@
/* $NetBSD: exect.S,v 1.3 2000/06/14 06:49:03 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include "SYS.h"
LEAF(exect, 3)
CALLSYS_ERROR(execve)
RET
END(exect)

36
lib/libc/arch/arm/sys/exect.S
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@ -1,36 +0,0 @@
/* $NetBSD: exect.S,v 1.4 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: @(#)exect.s 5.1 (Berkeley) 4/23/90
*/
#include "SYS.h"
PSEUDO(exect,execve)

40
lib/libc/arch/hppa/sys/exect.S
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@ -1,40 +0,0 @@
/* $NetBSD: exect.S,v 1.2 2009/11/03 05:07:25 snj Exp $ */
/* $OpenBSD: exect.S,v 1.5 2001/03/29 01:43:52 mickey Exp $ */
/*
* Copyright (c) 1999 Michael Shalayeff
* 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 ``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 HIS RELATIVES 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 MIND, 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(LIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: exect.S,v 1.2 2009/11/03 05:07:25 snj Exp $")
#endif /* LIBC_SCCS and not lint */
/* we do no tracing yet */
PSEUDO(exect,execve)
.end

51
lib/libc/arch/i386/sys/exect.S
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@ -1,51 +0,0 @@
/* $NetBSD: exect.S,v 1.15 2014/05/23 02:34:19 uebayasi Exp $ */
/*-
* 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.
* 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: @(#)exect.s 5.1 (Berkeley) 4/23/90
*/
#include <machine/asm.h>
#if defined(SYSLIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: exect.S,v 1.15 2014/05/23 02:34:19 uebayasi Exp $")
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
#include <machine/psl.h>
ENTRY(exect)
pushfl
orb $(PSL_T>>8),1(%esp)
popfl
SYSTRAP(execve)
jmp CERROR
END(exect)

12
lib/libc/arch/ia64/sys/exect.S
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@ -1,12 +0,0 @@
/* $NetBSD: exect.S,v 1.2 2016/12/10 21:19:15 scole Exp $ */
/* XXX: Stub */
#include <machine/asm.h>
#include "SYS.h"
ENTRY(exect, 3)
// XXX break into debugger in ski
break.i 1
END(exect)

50
lib/libc/arch/m68k/sys/exect.S
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@ -1,50 +0,0 @@
/* $NetBSD: exect.S,v 1.8 2013/07/16 22:20:35 matt Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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 "SYS.h"
#include <machine/psl.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
RCSID("from: @(#)exect.s 5.1 (Berkeley) 5/12/90")
#else
RCSID("$NetBSD: exect.S,v 1.8 2013/07/16 22:20:35 matt Exp $")
#endif
#endif /* LIBC_SCCS and not lint */
ENTRY(exect)
SYSTRAP(execve)
jbra CERROR /* exect(file, argv, env) */
END(exect)

52
lib/libc/arch/mips/sys/exect.S
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@ -1,52 +0,0 @@
/* $NetBSD: exect.S,v 1.10 2009/12/14 01:07:42 matt 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 "SYS.h"
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
RCSID("from: @(#)exect.s 8.1 (Berkeley) 6/4/93")
#else
RCSID("$NetBSD: exect.S,v 1.10 2009/12/14 01:07:42 matt Exp $")
#endif
#endif /* LIBC_SCCS and not lint */
LEAF(exect)
PIC_PROLOGUE(exect)
li v0, SYS_execve
syscall
bne a3, zero, 1f
PIC_RETURN()
1:
PIC_TAILCALL(__cerror)
END(exect)

5
lib/libc/arch/or1k/sys/exect.S
View File

@ -1,5 +0,0 @@
/* $NetBSD: exect.S,v 1.1 2014/09/03 19:34:26 matt Exp $ */
#include "SYS.h"
PSEUDO(exect,execve)

5
lib/libc/arch/powerpc/sys/exect.S
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@ -1,5 +0,0 @@
/* $NetBSD: exect.S,v 1.3 1998/05/25 15:28:03 ws Exp $ */
#include "SYS.h"
PSEUDO(exect,execve)

5
lib/libc/arch/powerpc64/sys/exect.S
View File

@ -1,5 +0,0 @@
/* $NetBSD: exect.S,v 1.1 2006/07/01 16:37:20 ross Exp $ */
#include "SYS.h"
PSEUDO(exect,execve)

9
lib/libc/arch/riscv/sys/exect.S
View File

@ -1,9 +0,0 @@
/* $NetBSD: exect.S,v 1.1 2014/09/19 17:36:25 matt Exp $ */
#include "SYS.h"
#if defined(LIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: exect.S,v 1.1 2014/09/19 17:36:25 matt Exp $")
#endif /* LIBC_SCCS and not lint */
PSEUDO(exect, execve)

44
lib/libc/arch/sh3/sys/exect.S
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@ -1,44 +0,0 @@
/* $NetBSD: exect.S,v 1.5 2006/01/06 01:53:30 uwe Exp $ */
/*-
* 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.
* 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: @(#)exect.s 5.1 (Berkeley) 4/23/90
*/
#include <machine/asm.h>
#if defined(SYSLIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: exect.S,v 1.5 2006/01/06 01:53:30 uwe Exp $")
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
PSEUDO(exect,execve)

52
lib/libc/arch/sparc/sys/exect.S
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@ -1,52 +0,0 @@
/* $NetBSD: exect.S,v 1.3 2003/08/07 16:42:25 agc Exp $ */
/*
* 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.
* 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: Header: exect.s,v 1.1 91/07/06 13:05:57 torek Exp
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
.asciz "@(#)exect.s 8.1 (Berkeley) 6/4/93"
#else
RCSID("$NetBSD: exect.S,v 1.3 2003/08/07 16:42:25 agc Exp $")
#endif
#endif /* LIBC_SCCS and not lint */
#include "SYS.h"
ENTRY(exect)
mov SYS_execve, %g1 /* execve(file, argv, env) */
t ST_SYSCALL
ERROR()

52
lib/libc/arch/sparc64/sys/exect.S
View File

@ -1,52 +0,0 @@
/* $NetBSD: exect.S,v 1.2 2003/08/07 16:42:29 agc Exp $ */
/*
* 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.
* 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: Header: exect.s,v 1.1 91/07/06 13:05:57 torek Exp
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
.asciz "@(#)exect.s 8.1 (Berkeley) 6/4/93"
#else
RCSID("$NetBSD: exect.S,v 1.2 2003/08/07 16:42:29 agc Exp $")
#endif
#endif /* LIBC_SCCS and not lint */
#include "SYS.h"
ENTRY(exect)
mov SYS_execve, %g1 /* execve(file, argv, env) */
t ST_SYSCALL
ERROR()

42
lib/libc/arch/vax/sys/exect.S
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@ -1,42 +0,0 @@
/*
* Copyright (c) 1983, 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. 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"
#include <machine/psl.h>
#if defined(SYSLIBC_SCCS) && !defined(lint)
/* .asciz "@(#)exect.s 8.1 (Berkeley) 6/4/93" */
RCSID("$NetBSD: exect.S,v 1.6 2011/01/25 02:38:15 matt Exp $")
#endif /* SYSLIBC_SCCS and not lint */
ENTRY(exect, 0)
bispsw $PSL_T
chmk $ SYS_execve
jmp CERROR+2 # exect(file, argv, env)
END(exect)

51
lib/libc/arch/x86_64/sys/exect.S
View File

@ -1,51 +0,0 @@
/* $NetBSD: exect.S,v 1.4 2014/05/22 15:01:57 uebayasi Exp $ */
/*-
* 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.
* 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: @(#)exect.s 5.1 (Berkeley) 4/23/90
*/
#include <machine/asm.h>
#if defined(SYSLIBC_SCCS) && !defined(lint)
RCSID("$NetBSD: exect.S,v 1.4 2014/05/22 15:01:57 uebayasi Exp $")
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
#include <machine/psl.h>
ENTRY(exect)
pushfq
orb $(PSL_T>>8),1(%rsp)
popfq
SYSTRAP(execve)
jmp CERROR
END(exect)

4
lib/libc/gen/Makefile.inc
View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile.inc,v 1.197 2017/01/12 00:38:01 christos Exp $
# $NetBSD: Makefile.inc,v 1.198 2017/02/07 19:29:40 kamil Exp $
# from: @(#)Makefile.inc 8.6 (Berkeley) 5/4/95
# gen sources
@ -13,7 +13,7 @@ SRCS+= alarm.c alphasort.c arc4random.c assert.c asysctl.c \
confstr.c ctermid.c ctype_.c \
dehumanize_number.c devname.c dirname.c disklabel.c err.c errx.c \
errc.c errlist.c errno.c execl.c execle.c execlp.c execv.c execvp.c \
extattr.c fmtcheck.c fmtmsg.c fnmatch.c fstab.c ftok.c \
exect.c extattr.c fmtcheck.c fmtmsg.c fnmatch.c fstab.c ftok.c \
fts.c ftw.c getbsize.c getcap.c getcwd.c \
getdevmajor.c getdomainname.c getgrent.c \
getgrouplist.c getgroupmembership.c gethostname.c \

43
lib/libc/gen/exect.c Normal file
View File

@ -0,0 +1,43 @@
/* $NetBSD: exect.c,v 1.1 2017/02/07 19:29:40 kamil Exp $ */
/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: exect.c,v 1.1 2017/02/07 19:29:40 kamil Exp $");
#endif
#include <unistd.h>
__warn_references(exect,
"warning: exect() is obsolete, its functionality has moved to the kernel")
int
exect(const char *path, char *const argv[], char *const envp[])
{
return execve(path, argv, envp);
}

18
lib/libc/sys/Lint_exect.c
View File

@ -1,18 +0,0 @@
/* $NetBSD: Lint_exect.c,v 1.2 2000/06/14 06:49:10 cgd Exp $ */
/*
* This file placed in the public domain.
* Chris Demetriou, November 5, 1997.
*/
#include <unistd.h>
/*ARGSUSED*/
int
exect(path, argv, envp)
const char *path;
char * const * argv;
char * const * envp;
{
return (0);
}

6
lib/libc/sys/Makefile.inc
View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile.inc,v 1.231 2016/07/03 14:24:58 christos Exp $
# $NetBSD: Makefile.inc,v 1.232 2017/02/07 19:29:40 kamil Exp $
# @(#)Makefile.inc 8.3 (Berkeley) 10/24/94
# sys sources
@ -13,13 +13,13 @@ SRCS+= posix_fadvise.c posix_madvise.c sched.c sigqueue.c sigtimedwait.c \
.if ${RUMPRUN} != "yes"
# modules with non-default implementations on at least one architecture:
SRCS+= __clone.S __vfork14.S brk.S exect.S fork.S pipe.S \
SRCS+= __clone.S __vfork14.S brk.S fork.S pipe.S \
getcontext.S \
ptrace.S sbrk.S shmat.S \
syscall.S __syscall.S __clone.S cerror.S
_LSRC+= Lint___clone.c Lint___vfork14.c Lint_brk.c Lint_clone.c \
Lint_getcontext.c Lint_exect.c Lint_pipe.c Lint_ptrace.c \
Lint_getcontext.c Lint_pipe.c Lint_ptrace.c \
Lint_sbrk.c Lint___sigaction14.c Lint_syscall.c Lint___syscall.c \
LintSysNormal.c LintSysNoerr.c LintSysPseudoNoerr.c