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-rw-r--r--sys/svr4/imgact_svr4.c235
1 files changed, 0 insertions, 235 deletions
diff --git a/sys/svr4/imgact_svr4.c b/sys/svr4/imgact_svr4.c
deleted file mode 100644
index 7dc0d63..0000000
--- a/sys/svr4/imgact_svr4.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*-
- * Copyright (c) 1998 Mark Newton
- * Copyright (c) 1994-1996 Søren Schmidt
- * All rights reserved.
- *
- * 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 withough 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.
- *
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-#include <sys/systm.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/lock.h>
-#include <sys/proc.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 <svr4/svr4.h>
-
-static int exec_svr4_imgact __P((struct image_params *iparams));
-
-static int
-exec_svr4_imgact(imgp)
- struct image_params *imgp;
-{
- const struct exec *a_out = (const struct exec *) imgp->image_header;
- struct vmspace *vmspace;
- vm_offset_t vmaddr;
- unsigned long virtual_offset, file_offset;
- vm_offset_t buffer;
- unsigned long bss_size;
- int error;
-
- if (((a_out->a_magic >> 16) & 0xff) != 0x64)
- return -1;
-
- /*
- * Set file/virtual offset based on a.out variant.
- */
- switch ((int)(a_out->a_magic & 0xffff)) {
- case 0413:
- virtual_offset = 0;
- file_offset = 1024;
- break;
- case 0314:
- virtual_offset = 4096;
- file_offset = 0;
- break;
- default:
- return (-1);
- }
- bss_size = round_page(a_out->a_bss);
-#ifdef DEBUG
- printf("imgact: text: %08x, data: %08x, bss: %08x\n", a_out->a_text, a_out->a_data, bss_size);
-#endif
-
- /*
- * Check various fields in header for validity/bounds.
- */
- if (a_out->a_entry < virtual_offset ||
- a_out->a_entry >= virtual_offset + a_out->a_text ||
- a_out->a_text & PAGE_MASK || a_out->a_data & PAGE_MASK)
- return (-1);
-
- /* text + data can't exceed file size */
- if (a_out->a_data + a_out->a_text > imgp->attr->va_size)
- return (EFAULT);
- /*
- * text/data/bss must not exceed limits
- */
- if (a_out->a_text > MAXTSIZ ||
- a_out->a_data + bss_size > imgp->proc->p_rlimit[RLIMIT_DATA].rlim_cur)
- return (ENOMEM);
-
- /* copy in arguments and/or environment from old process */
- error = exec_extract_strings(imgp);
- if (error)
- return (error);
-
- /*
- * Destroy old process VM and create a new one (with a new stack)
- */
- exec_new_vmspace(imgp);
- vmspace = imgp->proc->p_vmspace;
-
- /*
- * Check if file_offset page aligned,.
- * Currently we cannot handle misalinged file offsets,
- * and so we read in the entire image (what a waste).
- */
- if (file_offset & PAGE_MASK) {
-#ifdef DEBUG
- printf("imgact: Non page aligned binary %d\n", file_offset);
-#endif
- /*
- * Map text+data+bss read/write/execute
- */
- vmaddr = virtual_offset;
- error = vm_map_find(&vmspace->vm_map, NULL, 0, &vmaddr,
- a_out->a_text + a_out->a_data + bss_size, FALSE,
- VM_PROT_ALL, VM_PROT_ALL, 0);
- if (error)
- return error;
-
- error = vm_mmap(kernel_map, &buffer,
- round_page(a_out->a_text + a_out->a_data + file_offset),
- VM_PROT_READ, VM_PROT_READ, 0,
- (caddr_t) imgp->vp, trunc_page(file_offset));
- if (error)
- return error;
-
- error = copyout((caddr_t)(buffer + file_offset), (caddr_t)vmaddr,
- a_out->a_text + a_out->a_data);
-
- vm_map_remove(kernel_map, buffer,
- buffer + round_page(a_out->a_text + a_out->a_data + file_offset));
-
- if (error)
- return error;
-
- /*
- * remove write enable on the 'text' part
- */
- error = vm_map_protect(&vmspace->vm_map,
- vmaddr,
- vmaddr + a_out->a_text,
- VM_PROT_EXECUTE|VM_PROT_READ,
- TRUE);
- if (error)
- return error;
- }
- else {
-#ifdef DEBUG
- printf("imgact: Page aligned binary %d\n", file_offset);
-#endif
- /*
- * Map text+data read/execute
- */
- vmaddr = virtual_offset;
- error = vm_mmap(&vmspace->vm_map, &vmaddr,
- a_out->a_text + a_out->a_data,
- VM_PROT_READ | VM_PROT_EXECUTE,
- VM_PROT_ALL,
- MAP_PRIVATE | MAP_FIXED,
- (caddr_t)imgp->vp, file_offset);
- if (error)
- return (error);
-
-#ifdef DEBUG
- printf("imgact: startaddr=%08x, length=%08x\n", vmaddr, a_out->a_text + a_out->a_data);
-#endif
- /*
- * allow read/write of data
- */
- error = vm_map_protect(&vmspace->vm_map,
- vmaddr + a_out->a_text,
- vmaddr + a_out->a_text + a_out->a_data,
- VM_PROT_ALL,
- FALSE);
- if (error)
- return (error);
-
- /*
- * Allocate anon demand-zeroed area for uninitialized data
- */
- if (bss_size != 0) {
- vmaddr = virtual_offset + a_out->a_text + a_out->a_data;
- error = vm_map_find(&vmspace->vm_map, NULL, 0, &vmaddr,
- bss_size, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0);
- if (error)
- return (error);
-#ifdef DEBUG
- printf("imgact: bssaddr=%08x, length=%08x\n", vmaddr, bss_size);
-#endif
-
- }
- /* Indicate that this file should not be modified */
- imgp->vp->v_flag |= VTEXT;
- }
- /* Fill in process VM information */
- vmspace->vm_tsize = round_page(a_out->a_text) >> PAGE_SHIFT;
- vmspace->vm_dsize = round_page(a_out->a_data + bss_size) >> PAGE_SHIFT;
- vmspace->vm_taddr = (caddr_t)virtual_offset;
- vmspace->vm_daddr = (caddr_t)virtual_offset + a_out->a_text;
-
- /* Fill in image_params */
- imgp->interpreted = 0;
- imgp->entry_addr = a_out->a_entry;
-
- imgp->proc->p_sysent = &svr4_sysvec;
- return (0);
-}
-
-/*
- * Tell kern_execve.c about it, with a little help from the linker.
- */
-struct execsw svr4_execsw = { exec_svr4_imgact, "svr4 ELF" };
-EXEC_SET(execsw_set, svr4_execsw);
-
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