300 lines
6.9 KiB
C
300 lines
6.9 KiB
C
/* $NetBSD: svr4_32_exec_elf32.c,v 1.7 2002/08/29 14:01:08 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1994 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 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>
|
|
__KERNEL_RCSID(0, "$NetBSD: svr4_32_exec_elf32.c,v 1.7 2002/08/29 14:01:08 christos Exp $");
|
|
|
|
#define ELFSIZE 32 /* XXX should die */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/namei.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/exec_elf.h>
|
|
#include <sys/exec.h>
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/reg.h>
|
|
|
|
#include <compat/svr4_32/svr4_32_types.h>
|
|
#include <compat/svr4_32/svr4_32_util.h>
|
|
#include <compat/svr4_32/svr4_32_exec.h>
|
|
#include <compat/netbsd32/netbsd32_exec.h>
|
|
#include <compat/svr4/svr4_errno.h>
|
|
|
|
/*
|
|
* Since this only works on 64-bit machines trying to execute
|
|
* 32-bit binaries, it's pretty much limited to sparc64
|
|
* trying to run solaris binaries. So, to simplify this
|
|
* I'm making this svr4_32_copyargs() SPARC/Solaris specific
|
|
* so we can run Solaris 8 dynamic binaries that require
|
|
* lots of fancy specialized support.
|
|
*/
|
|
|
|
int sun_flags = EF_SPARC_SUN_US1|EF_SPARC_32PLUS;
|
|
int sun_hwcap = (AV_SPARC_HWMUL_32x32|AV_SPARC_HWDIV_32x32|AV_SPARC_HWFSMULD);
|
|
|
|
#if 0
|
|
int
|
|
svr4_32_copyargs(p, pack, arginfo, stackp, argp)
|
|
struct proc *p;
|
|
struct exec_package *pack;
|
|
struct ps_strings *arginfo;
|
|
char **stackp;
|
|
void *argp;
|
|
{
|
|
size_t len;
|
|
AuxInfo ai[SVR4_32_AUX_ARGSIZ], *a, *platform=NULL, *exec=NULL;
|
|
struct elf_args *ap;
|
|
extern char platform_type[32];
|
|
int error;
|
|
|
|
if ((error = netbsd32_copyargs(p, pack, arginfo, stackp, argp)) != 0)
|
|
return error;
|
|
|
|
a = ai;
|
|
|
|
/*
|
|
* Push extra arguments on the stack needed by dynamically
|
|
* linked binaries
|
|
*/
|
|
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
|
|
struct proc *p = curproc; /* XXXXX */
|
|
|
|
a->a_type = AT_SUN_PLATFORM;
|
|
platform = a; /* Patch this later. */
|
|
a++;
|
|
|
|
if (pack->ep_ndp->ni_cnd.cn_flags & HASBUF) {
|
|
a->a_type = AT_SUN_EXECNAME;
|
|
exec = a; /* Patch this later. */
|
|
a++;
|
|
}
|
|
|
|
a->a_type = AT_PHDR;
|
|
a->a_v = ap->arg_phaddr;
|
|
a++;
|
|
|
|
a->a_type = AT_PHENT;
|
|
a->a_v = ap->arg_phentsize;
|
|
a++;
|
|
|
|
a->a_type = AT_PHNUM;
|
|
a->a_v = ap->arg_phnum;
|
|
a++;
|
|
|
|
a->a_type = AT_ENTRY;
|
|
a->a_v = ap->arg_entry;
|
|
a++;
|
|
|
|
a->a_type = AT_BASE;
|
|
a->a_v = ap->arg_interp;
|
|
a++;
|
|
|
|
if (sun_flags) {
|
|
a->a_type = AT_FLAGS;
|
|
a->a_v = sun_flags;
|
|
a++;
|
|
}
|
|
|
|
a->a_type = AT_PAGESZ;
|
|
a->a_v = PAGE_SIZE;
|
|
a++;
|
|
|
|
a->a_type = AT_EUID;
|
|
a->a_v = p->p_ucred->cr_uid;
|
|
a++;
|
|
|
|
a->a_type = AT_RUID;
|
|
a->a_v = p->p_cred->p_ruid;
|
|
a++;
|
|
|
|
a->a_type = AT_EGID;
|
|
a->a_v = p->p_ucred->cr_gid;
|
|
a++;
|
|
|
|
a->a_type = AT_RGID;
|
|
a->a_v = p->p_cred->p_rgid;
|
|
a++;
|
|
|
|
if (sun_hwcap) {
|
|
a->a_type = AT_SUN_HWCAP;
|
|
a->a_v = sun_hwcap;
|
|
a++;
|
|
}
|
|
|
|
free((char *)ap, M_TEMP);
|
|
pack->ep_emul_arg = NULL;
|
|
}
|
|
|
|
a->a_type = AT_NULL;
|
|
a->a_v = 0;
|
|
a++;
|
|
|
|
len = (a - ai) * sizeof(AuxInfo);
|
|
|
|
if (platform) {
|
|
char *ptr = (char *)a;
|
|
const char *path = NULL;
|
|
|
|
/* Copy out the platform name. */
|
|
platform->a_v = (u_long)(*stackp) + len;
|
|
/* XXXX extremely inefficient.... */
|
|
strcpy(ptr, platform_type);
|
|
ptr += strlen(platform_type) + 1;
|
|
len += strlen(platform_type) + 1;
|
|
|
|
if (exec) {
|
|
path = pack->ep_ndp->ni_cnd.cn_pnbuf;
|
|
|
|
/* Copy out the file we're executing. */
|
|
exec->a_v = (u_long)(*stackp) + len;
|
|
strcpy(ptr, path);
|
|
len += strlen(ptr)+1;
|
|
}
|
|
|
|
/* Round to 32-bits */
|
|
len = (len+7)&~0x7L;
|
|
}
|
|
if ((error = copyout(ai, *stackp, len)) != 0)
|
|
return error;
|
|
*stackp += len;
|
|
|
|
return error;
|
|
}
|
|
#else
|
|
int
|
|
svr4_32_copyargs(p, pack, arginfo, stackp, argp)
|
|
struct proc *p;
|
|
struct exec_package *pack;
|
|
struct ps_strings *arginfo;
|
|
char **stackp;
|
|
void *argp;
|
|
{
|
|
size_t len;
|
|
AuxInfo ai[SVR4_32_AUX_ARGSIZ], *a;
|
|
struct elf_args *ap;
|
|
int error;
|
|
|
|
if ((error = netbsd32_copyargs(p, pack, arginfo, stackp, argp)) != 0)
|
|
return error;
|
|
|
|
a = ai;
|
|
|
|
/*
|
|
* Push extra arguments on the stack needed by dynamically
|
|
* linked binaries
|
|
*/
|
|
if ((ap = (struct elf_args *)pack->ep_emul_arg)) {
|
|
|
|
a->a_type = AT_PHDR;
|
|
a->a_v = ap->arg_phaddr;
|
|
a++;
|
|
|
|
a->a_type = AT_PHENT;
|
|
a->a_v = ap->arg_phentsize;
|
|
a++;
|
|
|
|
a->a_type = AT_PHNUM;
|
|
a->a_v = ap->arg_phnum;
|
|
a++;
|
|
|
|
a->a_type = AT_PAGESZ;
|
|
a->a_v = PAGE_SIZE;
|
|
a++;
|
|
|
|
a->a_type = AT_BASE;
|
|
a->a_v = ap->arg_interp;
|
|
a++;
|
|
|
|
a->a_type = AT_ENTRY;
|
|
a->a_v = ap->arg_entry;
|
|
a++;
|
|
|
|
if (sun_flags) {
|
|
a->a_type = AT_FLAGS;
|
|
a->a_v = sun_flags;
|
|
a++;
|
|
}
|
|
|
|
free((char *)ap, M_TEMP);
|
|
pack->ep_emul_arg = NULL;
|
|
}
|
|
|
|
a->a_type = AT_NULL;
|
|
a->a_v = 0;
|
|
a++;
|
|
|
|
len = (a - ai) * sizeof(AuxInfo);
|
|
if (copyout(ai, *stackp, len))
|
|
return error;
|
|
*stackp += len;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
svr4_32_elf32_probe(p, epp, eh, itp, pos)
|
|
struct proc *p;
|
|
struct exec_package *epp;
|
|
void *eh;
|
|
char *itp;
|
|
vaddr_t *pos;
|
|
{
|
|
const char *bp;
|
|
int error;
|
|
size_t len;
|
|
|
|
if (itp[0]) {
|
|
if ((error = emul_find(p, NULL, epp->ep_esch->es_emul->e_path, itp, &bp, 0)))
|
|
return error;
|
|
if ((error = copystr(bp, itp, MAXPATHLEN, &len)))
|
|
return error;
|
|
free((void *)bp, M_TEMP);
|
|
}
|
|
epp->ep_flags |= EXEC_32;
|
|
*pos = SVR4_32_INTERP_ADDR;
|
|
return 0;
|
|
}
|