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/* $OpenBSD: hpux_exec.c,v 1.1 2004/07/09 21:48:21 mickey Exp $ */
/*
* Copyright (c) 2004 Michael Shalayeff. All rights reserved.
* Copyright (c) 1995, 1997 Jason R. Thorpe. All rights reserved.
* Copyright (c) 1993, 1994 Christopher G. Demetriou
*
* 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
* 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.
*/
/*
* Glue for exec'ing HP-UX executables and the HP-UX execv() system call.
* Based on sys/kern/exec_aout.c
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/user.h>
#include <sys/vnode.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
#include <machine/reg.h>
#include <sys/syscallargs.h>
#include <compat/hpux/hpux.h>
#include <compat/hpux/hpux_util.h>
#include <compat/hpux/hppa/hpux_syscall.h>
#include <compat/hpux/hppa/hpux_syscallargs.h>
#include <machine/hpux_machdep.h>
const char hpux_emul_path[] = "/emul/hpux";
extern char sigcode[], esigcode[];
extern struct sysent hpux_sysent[];
#ifdef SYSCALL_DEBUG
extern char *hpux_syscallnames[];
#endif
extern int bsdtohpuxerrnomap[];
int exec_hpux_som_nmagic(struct proc *, struct exec_package *);
int exec_hpux_som_zmagic(struct proc *, struct exec_package *);
int exec_hpux_som_omagic(struct proc *, struct exec_package *);
struct emul emul_hpux = {
"hpux",
bsdtohpuxerrnomap,
hpux_sendsig,
HPUX_SYS_syscall,
HPUX_SYS_MAXSYSCALL,
hpux_sysent,
#ifdef SYSCALL_DEBUG
hpux_syscallnames,
#else
NULL,
#endif
0,
copyargs,
hpux_setregs,
NULL,
sigcode,
esigcode,
};
int
exec_hpux_makecmds(p, epp)
struct proc *p;
struct exec_package *epp;
{
struct som_exec *som_ep = epp->ep_hdr;
short sysid, magic;
int error = ENOEXEC;
sysid = HPUX_SYSID(som_ep);
if (sysid != MID_HPUX800 && sysid != MID_HPPA11 && sysid != MID_HPPA20)
return (error);
/* XXX read in the aux header if it was not following the som header */
if (sysid != MID_HPUX && (!(som_ep->som_version == HPUX_SOM_V0 ||
som_ep->som_version == HPUX_SOM_V1) ||
som_ep->som_auxhdr + sizeof(struct som_aux) < epp->ep_hdrvalid)) {
return (error);
}
/*
* HP-UX is a 4k page size system, and executables assume
* this.
*/
if (PAGE_SIZE != HPUX_LDPGSZ)
return (error);
magic = HPUX_MAGIC(som_ep);
switch (magic) {
case OMAGIC:
error = exec_hpux_som_omagic(p, epp);
break;
case NMAGIC:
error = exec_hpux_som_nmagic(p, epp);
break;
case ZMAGIC:
error = exec_hpux_som_zmagic(p, epp);
break;
}
if (error == 0) {
/* set up our emulation information */
epp->ep_emul = &emul_hpux;
} else
kill_vmcmds(&epp->ep_vmcmds);
return (error);
}
int
exec_hpux_som_nmagic(struct proc *p, struct exec_package *epp)
{
struct som_exec *execp = epp->ep_hdr;
struct som_aux *auxp = epp->ep_hdr + execp->som_auxhdr;
epp->ep_taddr = auxp->som_tmem;
epp->ep_tsize = auxp->som_tsize;
epp->ep_daddr = auxp->som_dmem;
epp->ep_dsize = auxp->som_dsize + auxp->som_bsize;
epp->ep_entry = auxp->som_entry;
/* set up command for text segment */
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn, epp->ep_tsize,
epp->ep_taddr, epp->ep_vp, auxp->som_tfile,
VM_PROT_READ|VM_PROT_EXECUTE);
/* set up command for data segment */
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_readvn, auxp->som_dsize,
epp->ep_daddr, epp->ep_vp, auxp->som_dfile,
VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
/* set up command for bss segment */
if (auxp->som_bsize > 0)
NEW_VMCMD(&epp->ep_vmcmds, vmcmd_map_zero, auxp->som_bsize,
epp->ep_daddr + auxp->som_dsize,
NULLVP, 0, VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE);
return (exec_setup_stack(p, epp));
}
int
exec_hpux_som_zmagic(struct proc *p, struct exec_package *epp)
{
return (exec_setup_stack(p, epp));
}
int
exec_hpux_som_omagic(struct proc *p, struct exec_package *epp)
{
return (exec_setup_stack(p, epp));
}
/*
* The HP-UX execv(2) system call.
*
* Just check the alternate emulation path, and pass it on to the NetBSD
* execve().
*/
int
hpux_sys_execv(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct hpux_sys_execv_args /* {
syscallarg(char *) path;
syscallarg(char **) argv;
} */ *uap = v;
struct sys_execve_args ap;
caddr_t sg;
sg = stackgap_init(p->p_emul);
HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = NULL;
return sys_execve(p, &ap, retval);
}
int
hpux_sys_execve(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct hpux_sys_execve_args /* {
syscallarg(char *) path;
syscallarg(char **) argv;
syscallarg(char **) envp;
} */ *uap = v;
struct sys_execve_args ap;
caddr_t sg;
sg = stackgap_init(p->p_emul);
HPUX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = SCARG(uap, envp);
return (sys_execve(p, &ap, retval));
}
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