int
osf1_exec_ecoff_hook(struct proc *p, struct exec_package *epp)
{
struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr;
struct osf1_exec_emul_arg *emul_arg;
int error;
/* if we're here and we're exec-able at all, we're an OSF/1 binary */
epp->ep_emul = &emul_osf1;
/* set up the exec package emul arg as appropriate */
emul_arg = malloc(sizeof *emul_arg, M_TEMP, M_WAITOK);
epp->ep_emul_arg = emul_arg;
emul_arg->flags = 0;
if (epp->ep_ndp->ni_segflg == UIO_SYSSPACE)
error = copystr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
MAXPATHLEN + 1, NULL);
else
error = copyinstr(epp->ep_ndp->ni_dirp, emul_arg->exec_name,
MAXPATHLEN + 1, NULL);
#ifdef DIAGNOSTIC
if (error != 0)
panic("osf1_exec_ecoff_hook: copyinstr failed");
#endif
/* do any special object file handling */
switch (execp->f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
case ECOFF_OBJECT_TYPE_SHARABLE:
/* can't exec a shared library! */
uprintf("can't execute OSF/1 shared libraries\n");
error = ENOEXEC;
break;
case ECOFF_OBJECT_TYPE_CALL_SHARED:
error = osf1_exec_ecoff_dynamic(p, epp);
break;
default:
/* just let the normal ECOFF handlers deal with it. */
error = 0;
break;
}
if (error) {
free(epp->ep_emul_arg, M_TEMP);
epp->ep_emul_arg = NULL;
kill_vmcmds(&epp->ep_vmcmds); /* if any */
}
return (error);
}
int
osf1_exec_ecoff_probe(struct lwp *l, struct exec_package *epp)
{
struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr;
struct osf1_exec_emul_arg *emul_arg;
int error;
/* check if the binary is osf1 ecoff */
if (execp->f.f_magic != ECOFF_MAGIC_ALPHA)
return ENOEXEC;
/* set up the exec package emul arg as appropriate */
emul_arg = kmem_alloc(sizeof(*emul_arg), KM_SLEEP);
epp->ep_emul_arg = emul_arg;
epp->ep_emul_arg_free = osf1_free_emul_arg;
emul_arg->flags = 0;
/* this cannot overflow because both are size PATH_MAX */
strcpy(emul_arg->exec_name, epp->ep_kname);
/* do any special object file handling */
switch (execp->f.f_flags & ECOFF_FLAG_OBJECT_TYPE_MASK) {
case ECOFF_OBJECT_TYPE_SHARABLE:
/* can't exec a shared library! */
#if 0
uprintf("can't execute OSF/1 shared libraries\n");
#endif
error = ENOEXEC;
break;
case ECOFF_OBJECT_TYPE_CALL_SHARED:
error = osf1_exec_ecoff_dynamic(l, epp);
break;
default:
/* just let the normal ECOFF handlers deal with it. */
error = 0;
break;
}
if (error) {
exec_free_emul_arg(epp);
kill_vmcmds(&epp->ep_vmcmds); /* if any */
}
return (error);
}
