diff options
Diffstat (limited to 'sys/compat/svr4/svr4_exec.c')
| -rw-r--r-- | sys/compat/svr4/svr4_exec.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/sys/compat/svr4/svr4_exec.c b/sys/compat/svr4/svr4_exec.c new file mode 100644 index 00000000000..9393f63736a --- /dev/null +++ b/sys/compat/svr4/svr4_exec.c @@ -0,0 +1,132 @@ +/* $NetBSD: svr4_exec.c,v 1.15 1995/06/24 20:29:19 christos Exp $ */ + +/* + * Copyright (c) 1994 Christos Zoulas + * 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. 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/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/mman.h> +#include <vm/vm.h> +#include <vm/vm_param.h> +#include <vm/vm_map.h> + +#include <machine/cpu.h> +#include <machine/reg.h> +#include <machine/exec.h> +#include <machine/svr4_machdep.h> + +#include <compat/svr4/svr4_util.h> +#include <compat/svr4/svr4_syscall.h> +#include <compat/svr4/svr4_exec.h> + +static void *svr4_copyargs __P((struct exec_package *, struct ps_strings *, + void *, void *)); + +const char svr4_emul_path[] = "/emul/svr4"; +extern int svr4_error[]; +extern char svr4_sigcode[], svr4_esigcode[]; +extern struct sysent svr4_sysent[]; +extern char *svr4_syscallnames[]; + +struct emul emul_svr4 = { + "svr4", + svr4_error, + svr4_sendsig, + SVR4_SYS_syscall, + SVR4_SYS_MAXSYSCALL, + svr4_sysent, + svr4_syscallnames, + SVR4_AUX_ARGSIZ, + svr4_copyargs, + setregs, + svr4_sigcode, + svr4_esigcode, +}; + +static void * +svr4_copyargs(pack, arginfo, stack, argp) + struct exec_package *pack; + struct ps_strings *arginfo; + void *stack; + void *argp; +{ + AuxInfo *a; + struct elf_args *ap; + + if (!(a = (AuxInfo *) elf_copyargs(pack, arginfo, stack, argp))) + return NULL; +#ifdef SVR4_COMPAT_SOLARIS2 + if (pack->ep_emul_arg) { + a->au_id = AUX_sun_uid; + a->au_v = p->p_ucred->cr_uid; + a++; + + a->au_id = AUX_sun_ruid; + a->au_v = p->p_cred->ruid; + a++; + + a->au_id = AUX_sun_gid; + a->au_v = p->p_ucred->cr_gid; + a++; + + a->au_id = AUX_sun_rgid; + a->au_v = p->p_cred->rgid; + a++; + } +#endif + return a; +} + +int +svr4_elf_probe(p, epp, itp, pos) + struct proc *p; + struct exec_package *epp; + char *itp; + u_long *pos; +{ + char *bp; + int error; + size_t len; + + if (itp[0]) { + if ((error = emul_find(p, NULL, svr4_emul_path, itp, &bp, 0))) + return error; + if ((error = copystr(bp, itp, MAXPATHLEN, &len))) + return error; + free(bp, M_TEMP); + } + epp->ep_emul = &emul_svr4; + *pos = SVR4_INTERP_ADDR; + return 0; +} |