diff options
Diffstat (limited to 'sys/alpha/osf1/imgact_osf1.c')
| -rw-r--r-- | sys/alpha/osf1/imgact_osf1.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/sys/alpha/osf1/imgact_osf1.c b/sys/alpha/osf1/imgact_osf1.c deleted file mode 100644 index 55498e0..0000000 --- a/sys/alpha/osf1/imgact_osf1.c +++ /dev/null @@ -1,250 +0,0 @@ -/*- - * Copyright (c) 1998-1999 Andrew Gallatin - * All rights reserved. - * - * Based heavily on imgact_linux.c which is - * Copyright (c) 1994-1996 Søren Schmidt. - * Which in turn is based heavily on /sys/kern/imgact_aout.c which is: - * Copyright (c) 1993, David Greenman - * - * 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 - * in this position and unchanged. - * 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/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <sys/malloc.h> - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mount.h> -#include <sys/filedesc.h> -#include <sys/fcntl.h> -#include <sys/resourcevar.h> -#include <sys/exec.h> -#include <sys/mman.h> -#include <sys/imgact.h> -#include <sys/imgact_aout.h> -#include <sys/kernel.h> -#include <sys/module.h> - -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/proc.h> -#include <sys/pioctl.h> -#include <sys/namei.h> -#include <sys/sysent.h> -#include <sys/shm.h> -#include <sys/sysctl.h> -#include <sys/vnode.h> - -#include <vm/vm.h> -#include <vm/vm_kern.h> -#include <vm/vm_param.h> -#include <vm/pmap.h> -#include <vm/vm_map.h> -#include <vm/vm_extern.h> - -#include <alpha/osf1/exec_ecoff.h> -extern struct sysentvec osf1_sysvec; - -#ifdef DEBUG -#define DPRINTF(a) printf a; -#else -#define DPRINTF(a) -#endif - -static int -exec_osf1_imgact(struct image_params *imgp) -{ - int error; - int path_not_saved; - size_t bytes; - const struct ecoff_exechdr *execp; - const struct ecoff_aouthdr *eap; - struct vmspace *vmspace; - vm_offset_t baddr; - vm_offset_t bsize; - vm_offset_t bss_start; - vm_offset_t daddr; - vm_offset_t dend; - vm_offset_t dsize; - vm_offset_t raw_dend; - vm_offset_t taddr; - vm_offset_t tend; - vm_offset_t tsize; - struct nameidata *ndp; - Osf_Auxargs *osf_auxargs; - struct thread *td; - - GIANT_REQUIRED; - - execp = (const struct ecoff_exechdr*)imgp->image_header; - eap = &execp->a; - ndp = NULL; - td = FIRST_THREAD_IN_PROC(imgp->proc); - -/* check to make sure we have an alpha ecoff executable */ - if (ECOFF_BADMAG(execp)) - return -1; - -/* verfify it an OSF/1 exectutable */ - if (eap->magic != ECOFF_ZMAGIC) { - printf("unknown ecoff magic %x\n", eap->magic); - return ENOEXEC; - } - osf_auxargs = malloc(sizeof(Osf_Auxargs), M_TEMP, M_WAITOK | M_ZERO); - imgp->auxargs = osf_auxargs; - osf_auxargs->executable = osf_auxargs->exec_path; - path_not_saved = copystr(imgp->args->fname, osf_auxargs->executable, - PATH_MAX, &bytes); - if (execp->f.f_flags & DYNAMIC_FLAG) { - if (path_not_saved) { - uprintf("path to dynamic exectutable not found\n"); - free(imgp->auxargs, M_TEMP); - return(path_not_saved); - } - /* - * Unmap the executable & attempt to slide in - * /sbin/loader in its place. - */ - if (imgp->firstpage) - exec_unmap_first_page(imgp); - - /* - * Replicate what execve does, and map the first - * page of the loader. - */ - ndp = (struct nameidata *)malloc(sizeof(struct nameidata), - M_TEMP, M_WAITOK); - NDINIT(ndp, LOOKUP, LOCKLEAF | FOLLOW | SAVENAME, UIO_SYSSPACE, - "/compat/osf1/sbin/loader", td); - error = namei(ndp); - if (error) { - uprintf("imgact_osf1: can't read /compat/osf1/sbin/loader\n"); - free(imgp->auxargs, M_TEMP); - free(ndp, M_TEMP); - return(error); - } - NDFREE(ndp, NDF_ONLY_PNBUF); - if (imgp->vp) { - vput(imgp->vp); - /* leaking in the nameizone ??? XXX */ - } - imgp->vp = ndp->ni_vp; - error = exec_map_first_page(imgp); - osf_auxargs->loader = "/compat/osf1/sbin/loader"; - } - - execp = (const struct ecoff_exechdr*)imgp->image_header; - eap = &execp->a; - taddr = ECOFF_SEGMENT_ALIGN(execp, eap->text_start); - tend = round_page(eap->text_start + eap->tsize); - tsize = tend - taddr; - - daddr = ECOFF_SEGMENT_ALIGN(execp, eap->data_start); - dend = round_page(eap->data_start + eap->dsize); - dsize = dend - daddr; - - bss_start = ECOFF_SEGMENT_ALIGN(execp, eap->bss_start); - bsize = eap->bsize; - - imgp->entry_addr = eap->entry; - - /* - * Destroy old process VM and create a new one (with a new stack). - */ - exec_new_vmspace(imgp, &osf1_sysvec); - - /* - * The vm space can now be changed. - */ - vmspace = imgp->proc->p_vmspace; - - imgp->interpreted = 0; - imgp->proc->p_sysent = &osf1_sysvec; - - /* set up text segment */ - if ((error = vm_mmap(&vmspace->vm_map, &taddr, tsize, - VM_PROT_READ|VM_PROT_EXECUTE, VM_PROT_ALL, MAP_FIXED|MAP_COPY, - OBJT_VNODE, imgp->vp, ECOFF_TXTOFF(execp)))) { - DPRINTF(("%s(%d): error = %d\n", __FILE__, __LINE__, error)); - goto bail; - } - /* .. data .. */ - if ((error = vm_mmap(&vmspace->vm_map, &daddr, dsize, - VM_PROT_READ|VM_PROT_EXECUTE|VM_PROT_WRITE, VM_PROT_ALL, - MAP_FIXED|MAP_COPY, OBJT_VNODE, imgp->vp, ECOFF_DATOFF(execp)))) { - DPRINTF(("%s(%d): error = %d\n", __FILE__, __LINE__, error)); - goto bail; - } - /* .. bss .. */ - if (round_page(bsize)) { - baddr = bss_start; - if ((error = vm_map_find(&vmspace->vm_map, NULL, - (vm_offset_t) 0, &baddr, round_page(bsize), FALSE, - VM_PROT_ALL, VM_PROT_ALL, FALSE))) { - DPRINTF(("%s(%d): error = %d\n", __FILE__, __LINE__, - error)); - goto bail; - - } - } - - - raw_dend = (eap->data_start + eap->dsize); - if (dend > raw_dend) { - caddr_t zeros; - zeros = malloc(dend-raw_dend,M_TEMP,M_WAITOK|M_ZERO); - if ((error = copyout(zeros, (caddr_t)raw_dend, - dend-raw_dend))) { - uprintf("Can't zero start of bss, error %d\n",error); - free(zeros,M_TEMP); - goto bail; - } - free(zeros,M_TEMP); - - } - vmspace->vm_tsize = btoc(round_page(tsize)); - vmspace->vm_dsize = btoc((round_page(dsize) + round_page(bsize))); - vmspace->vm_taddr = (caddr_t)taddr; - vmspace->vm_daddr = (caddr_t)daddr; - - return(0); - - bail: - free(imgp->auxargs, M_TEMP); - if (ndp) { - VOP_CLOSE(ndp->ni_vp, FREAD, td->td_ucred, td); - vrele(ndp->ni_vp); - free(ndp, M_TEMP); - } - return(error); -} -/* - * Tell kern_execve.c about it, with a little help from the linker. - */ -struct execsw osf1_execsw = { exec_osf1_imgact, "OSF/1 ECOFF" }; -EXEC_SET(osf1_ecoff, osf1_execsw); |
