NetBSD-5.0.2/sys/kern/exec_conf.c
/* $NetBSD: exec_conf.c,v 1.95 2007/12/31 13:39:03 ad Exp $ */
/*
* Copyright (c) 1993, 1994 Christopher G. Demetriou
* 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 Christopher G. Demetriou.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR 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>
__KERNEL_RCSID(0, "$NetBSD: exec_conf.c,v 1.95 2007/12/31 13:39:03 ad Exp $");
#include "opt_execfmt.h"
#include "opt_compat_freebsd.h"
#include "opt_compat_linux.h"
#include "opt_compat_ibcs2.h"
#include "opt_compat_irix.h"
#include "opt_compat_sunos.h"
#include "opt_compat_m68k4k.h"
#include "opt_compat_mach.h"
#include "opt_compat_darwin.h"
#include "opt_compat_svr4.h"
#include "opt_compat_netbsd32.h"
#include "opt_compat_linux32.h"
#include "opt_compat_aout_m68k.h"
#include "opt_compat_vax1k.h"
#include "opt_compat_pecoff.h"
#include "opt_compat_osf1.h"
#include "opt_compat_ultrix.h"
#include "opt_compat_netbsd.h"
#include "opt_coredump.h"
#include <sys/param.h>
#include <sys/exec.h>
#include <sys/signalvar.h>
#ifdef EXEC_SCRIPT
#include <sys/exec_script.h>
#endif
#ifdef EXEC_AOUT
/*#include <sys/exec_aout.h> -- automatically pulled in */
#endif
#ifdef EXEC_COFF
#include <sys/exec_coff.h>
#endif
#ifdef EXEC_ECOFF
#include <sys/exec_ecoff.h>
#endif
#if defined(EXEC_ELF32) || defined(EXEC_ELF64)
#include <sys/exec_elf.h>
#define CONCAT(x,y) __CONCAT(x,y)
#define ELF32NAME(x) CONCAT(elf,CONCAT(32,CONCAT(_,x)))
#define ELF32NAME2(x,y) CONCAT(x,CONCAT(_elf32_,y))
#define ELF64NAME(x) CONCAT(elf,CONCAT(64,CONCAT(_,x)))
#define ELF64NAME2(x,y) CONCAT(x,CONCAT(_elf64_,y))
#ifdef EXEC_ELF32
int ELF32NAME2(netbsd,probe)(struct lwp *, struct exec_package *,
void *, char *, vaddr_t *);
#endif
#ifdef EXEC_ELF64
int ELF64NAME2(netbsd,probe)(struct lwp *, struct exec_package *,
void *, char *, vaddr_t *);
#endif
#define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \
sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1))
#define ELF64_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux64Info), \
sizeof(Elf64_Addr)) + MAXPATHLEN + ALIGN(1))
/*
* Compatibility with old ELF binaries without NetBSD note.
* Generic ELF executable kernel support was added in NetBSD 1.1.
* The NetBSD note was introduced in NetBSD 1.3 together with initial
* ELF shared library support.
*/
#ifndef EXEC_ELF_NOTELESS
# if defined(COMPAT_11) || defined(COMPAT_12)
# define EXEC_ELF_NOTELESS 1
# endif
#endif /* !EXEC_ELF_NOTELESS */
#endif /* ELF32 || ELF64 */
#ifdef EXEC_MACHO
#include <sys/exec_macho.h>
#endif
#ifdef COMPAT_SUNOS
#include <compat/sunos/sunos_exec.h>
#endif
#if defined(COMPAT_SVR4) || defined(COMPAT_SVR4_32)
#include <compat/svr4/svr4_exec.h>
#endif
#ifdef COMPAT_SVR4_32
#include <compat/svr4_32/svr4_32_exec.h>
#endif
#ifdef COMPAT_IBCS2
#include <sys/exec_coff.h>
#include <compat/ibcs2/ibcs2_exec.h>
#include <machine/ibcs2_machdep.h>
#endif
#ifdef COMPAT_LINUX
#include <compat/linux/common/linux_exec.h>
#endif
#ifdef COMPAT_DARWIN
#include <compat/darwin/darwin_exec.h>
#endif
#ifdef COMPAT_FREEBSD
#include <compat/freebsd/freebsd_exec.h>
#endif
#ifdef COMPAT_M68K4K
#include <compat/m68k4k/m68k4k_exec.h>
#endif
#ifdef COMPAT_MACH
#include <compat/mach/mach_exec.h>
#endif
#ifdef COMPAT_IRIX
#include <compat/irix/irix_exec.h>
#endif
#ifdef COMPAT_NETBSD32
#include <compat/netbsd32/netbsd32_exec.h>
#ifdef COMPAT_SUNOS
#include <compat/sunos32/sunos32_exec.h>
#endif
#ifdef COMPAT_LINUX32
#include <compat/linux32/common/linux32_exec.h>
#endif
#endif
#ifdef COMPAT_VAX1K
#include <compat/vax1k/vax1k_exec.h>
#endif
#ifdef COMPAT_PECOFF
#include <sys/exec_coff.h>
#include <compat/pecoff/pecoff_exec.h>
#endif
#ifdef COMPAT_OSF1
#include <compat/osf1/osf1.h>
#include <compat/osf1/osf1_exec.h>
#endif
#ifdef COMPAT_ULTRIX
#include <compat/ultrix/ultrix_exec.h>
#endif
extern const struct emul emul_netbsd;
#ifdef COMPAT_AOUT_M68K
extern const struct emul emul_netbsd_aoutm68k;
#endif
const struct execsw execsw_builtin[] = {
#ifdef EXEC_SCRIPT
/* Shell scripts */
{ SCRIPT_HDR_SIZE,
exec_script_makecmds,
{ NULL },
NULL,
EXECSW_PRIO_ANY,
0,
NULL,
NULL,
NULL,
exec_setup_stack },
#endif /* EXEC_SCRIPT */
#ifdef EXEC_AOUT
#ifdef COMPAT_NETBSD32
/* 32-bit NetBSD a.out on 64-bit */
{ sizeof(struct netbsd32_exec),
exec_netbsd32_makecmds,
{ NULL },
&emul_netbsd32,
EXECSW_PRIO_FIRST,
0,
netbsd32_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd32,
#else
NULL,
#endif
exec_setup_stack },
#else /* !COMPAT_NETBSD32 */
/* Native a.out */
{ sizeof(struct exec),
exec_aout_makecmds,
{ NULL },
#if defined(COMPAT_AOUT_M68K)
&emul_netbsd_aoutm68k,
#else
&emul_netbsd,
#endif
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif /* !COMPAT_NETBSD32 */
#endif /* EXEC_AOUT */
#ifdef EXEC_COFF
/* Native COFF */
{ COFF_HDR_SIZE,
exec_coff_makecmds,
{ NULL },
&emul_netbsd,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif /* EXEC_COFF */
#ifdef EXEC_ECOFF
#ifdef COMPAT_OSF1
/* OSF/1 (Digital Unix) ECOFF */
{ ECOFF_HDR_SIZE,
exec_ecoff_makecmds,
{ .ecoff_probe_func = osf1_exec_ecoff_probe },
&emul_osf1,
EXECSW_PRIO_ANY,
howmany(OSF1_MAX_AUX_ENTRIES * sizeof (struct osf1_auxv) +
2 * (MAXPATHLEN + 1), sizeof (char *)), /* exec & loader names */
osf1_copyargs,
cpu_exec_ecoff_setregs,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
/* Native ECOFF */
{ ECOFF_HDR_SIZE,
exec_ecoff_makecmds,
{ .ecoff_probe_func = cpu_exec_ecoff_probe },
&emul_netbsd,
EXECSW_PRIO_ANY,
0,
copyargs,
cpu_exec_ecoff_setregs,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#ifdef COMPAT_ULTRIX
/* Ultrix ECOFF */
{ ECOFF_HDR_SIZE,
exec_ecoff_makecmds,
{ .ecoff_probe_func = ultrix_exec_ecoff_probe },
&emul_ultrix,
EXECSW_PRIO_LAST, /* XXX probe func alw. succeeds */
0,
copyargs,
cpu_exec_ecoff_setregs,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#endif /* EXEC_ECOFF */
#ifdef EXEC_ELF32
#ifdef COMPAT_NETBSD32
/* Elf32 NetBSD on 64-bit */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(netbsd32,probe) },
&emul_netbsd32,
EXECSW_PRIO_FIRST,
ELF32_AUXSIZE,
netbsd32_elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack }, /* XXX XXX XXX */
/* This one should go first so it matches instead of native */
#ifdef COMPAT_LINUX32
/* Linux Elf32 on 64-bit */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(linux32,probe) },
&emul_linux32,
EXECSW_PRIO_FIRST,
LINUX32_ELF_AUX_ARGSIZ,
linux32_elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack }, /* XXX XXX XXX */
/* This one should go first so it matches instead of native */
#endif
#ifdef COMPAT_SVR4_32
/* SVR4 Elf32 on 64-bit */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(svr4_32,probe) },
&emul_svr4_32,
EXECSW_PRIO_ANY,
SVR4_32_AUX_ARGSIZ,
svr4_32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack }, /* XXX XXX XXX */
/* This one should go first so it matches instead of native */
#endif
#if 0
#if EXEC_ELF_NOTELESS
/* Generic compat Elf32 -- run as compat NetBSD Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(netbsd32,probe_noteless) },
&emul_netbsd32,
EXECSW_PRIO_FIRST,
ELF32_AUXSIZE,
netbsd32_elf32_copyargs,
NULL,
coredump_elf32,
exec_setup_stack }, /* XXX XXX XXX */
#endif
#endif
#else /* !COMPAT_NETBSD32 */
/* Native Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(netbsd,probe) },
&emul_netbsd,
EXECSW_PRIO_ANY,
ELF32_AUXSIZE,
elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#ifdef COMPAT_FREEBSD
/* FreeBSD Elf32 (probe not 64-bit safe) */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(freebsd,probe) },
&emul_freebsd,
EXECSW_PRIO_ANY,
ELF32_AUXSIZE,
elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_LINUX
/* Linux Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(linux,probe) },
&emul_linux,
EXECSW_PRIO_ANY,
LINUX_ELF_AUX_ARGSIZ,
linux_elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
linux_exec_setup_stack },
#endif
#ifdef COMPAT_IRIX
/* IRIX Elf32 n32 ABI */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(irix,probe_n32) },
&emul_irix,
EXECSW_PRIO_ANY,
IRIX_AUX_ARGSIZ,
irix_elf32_copyargs,
irix_n32_setregs,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
/* IRIX Elf32 o32 ABI */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(irix,probe_o32) },
&emul_irix,
EXECSW_PRIO_ANY,
IRIX_AUX_ARGSIZ,
irix_elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_SVR4
/* SVR4 Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(svr4,probe) },
&emul_svr4,
EXECSW_PRIO_ANY,
ELF32_AUXSIZE,
elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_IBCS2
/* SCO Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ ELF32NAME2(ibcs2,probe) },
&emul_ibcs2,
EXECSW_PRIO_ANY,
ELF32_AUXSIZE,
elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#endif
#if EXEC_ELF_NOTELESS
/* Generic Elf32 -- run at NetBSD Elf32 */
{ sizeof (Elf32_Ehdr),
exec_elf32_makecmds,
{ NULL },
&emul_netbsd,
EXECSW_PRIO_LAST,
ELF32_AUXSIZE,
elf32_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf32,
#else
NULL,
#endif
exec_setup_stack },
#endif
#endif /* !COMPAT_NETBSD32 */
#endif /* EXEC_ELF32 */
#ifdef EXEC_ELF64
/* Native Elf64 */
{ sizeof (Elf64_Ehdr),
exec_elf64_makecmds,
{ ELF64NAME2(netbsd,probe) },
&emul_netbsd,
EXECSW_PRIO_ANY,
ELF64_AUXSIZE,
elf64_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf64,
#else
NULL,
#endif
exec_setup_stack },
#ifdef COMPAT_LINUX
/* Linux Elf64 */
{ sizeof (Elf64_Ehdr),
exec_elf64_makecmds,
{ ELF64NAME2(linux,probe) },
&emul_linux,
EXECSW_PRIO_ANY,
LINUX_ELF_AUX_ARGSIZ,
linux_elf64_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf64,
#else
NULL,
#endif
linux_exec_setup_stack },
#endif
#ifdef COMPAT_SVR4
/* SVR4 Elf64 */
{ sizeof (Elf64_Ehdr),
exec_elf64_makecmds,
{ ELF64NAME2(svr4,probe) },
&emul_svr4,
EXECSW_PRIO_ANY,
ELF64_AUXSIZE,
elf64_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf64,
#else
NULL,
#endif
exec_setup_stack },
#endif
#if EXEC_ELF_NOTELESS
/* Generic Elf64 -- run at NetBSD Elf64 */
{ sizeof (Elf64_Ehdr),
exec_elf64_makecmds,
{ NULL },
&emul_netbsd,
EXECSW_PRIO_ANY,
ELF64_AUXSIZE,
elf64_copyargs,
NULL,
#ifdef COREDUMP
coredump_elf64,
#else
NULL,
#endif
exec_setup_stack },
#endif
#endif /* EXEC_ELF64 */
#if defined(EXEC_MACHO)
#ifdef COMPAT_DARWIN
/* Darwin Mach-O (native word size) */
{ sizeof (struct exec_macho_fat_header),
exec_macho_makecmds,
{ .mach_probe_func = exec_darwin_probe },
&emul_darwin,
EXECSW_PRIO_ANY,
MAXPATHLEN + 1,
exec_darwin_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
darwin_exec_setup_stack },
#endif
#ifdef COMPAT_MACH
/* Mach MACH-O (native word size) */
{ sizeof (struct exec_macho_fat_header),
exec_macho_makecmds,
{ .mach_probe_func = exec_mach_probe },
&emul_mach,
EXECSW_PRIO_ANY,
MAXPATHLEN + 1,
exec_mach_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#endif /* EXEC_MACHO */
#ifdef COMPAT_SUNOS
#ifdef COMPAT_NETBSD32
/* 32-bit SunOS a.out on 64-bit */
{ SUNOS32_AOUT_HDR_SIZE,
exec_sunos32_aout_makecmds,
{ NULL },
&emul_sunos,
EXECSW_PRIO_ANY,
0,
netbsd32_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#else
/* SunOS a.out (native word size) */
{ SUNOS_AOUT_HDR_SIZE,
exec_sunos_aout_makecmds,
{ NULL },
&emul_sunos,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#endif /* COMPAT_SUNOS */
#if defined(COMPAT_LINUX) && defined(EXEC_AOUT)
/* Linux a.out (native word size) */
{ LINUX_AOUT_HDR_SIZE,
exec_linux_aout_makecmds,
{ NULL },
&emul_linux,
EXECSW_PRIO_ANY,
LINUX_AOUT_AUX_ARGSIZ,
linux_aout_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
linux_exec_setup_stack },
#endif
#ifdef COMPAT_IBCS2
/* iBCS2 COFF (native word size) */
{ COFF_HDR_SIZE,
exec_ibcs2_coff_makecmds,
{ NULL },
&emul_ibcs2,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
ibcs2_exec_setup_stack },
/* iBCS2 x.out (native word size) */
{ XOUT_HDR_SIZE,
exec_ibcs2_xout_makecmds,
{ NULL },
&emul_ibcs2,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
ibcs2_exec_setup_stack },
#endif
#if defined(COMPAT_FREEBSD) && defined(EXEC_AOUT)
/* FreeBSD a.out (native word size) */
{ FREEBSD_AOUT_HDR_SIZE,
exec_freebsd_aout_makecmds,
{ NULL },
&emul_freebsd,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_M68K4K
/* NetBSD a.out for m68k4k */
{ sizeof(struct exec),
exec_m68k4k_makecmds,
{ NULL },
&emul_netbsd,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_VAX1K
/* NetBSD vax1k a.out */
{ sizeof(struct exec),
exec_vax1k_makecmds,
{ NULL },
&emul_netbsd,
EXECSW_PRIO_ANY,
0,
copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
#ifdef COMPAT_PECOFF
/* Win32/WinCE PE/COFF (native word size) */
{ PECOFF_HDR_SIZE,
exec_pecoff_makecmds,
{ NULL },
&emul_pecoff,
EXECSW_PRIO_ANY,
howmany(sizeof(struct pecoff_args), sizeof(char *)),
pecoff_copyargs,
NULL,
#ifdef COREDUMP
coredump_netbsd,
#else
NULL,
#endif
exec_setup_stack },
#endif
};
int nexecs_builtin = (sizeof(execsw_builtin) / sizeof(struct execsw));