use the shared elfsetroot

2 files changed, 3 insertions, 217 deletions

diff --git a/distrib/mvmeppc/common/rdsetroot.c b/distrib/mvmeppc/common/rdsetroot.c
deleted file mode 100644
index 76ef9563c95..00000000000
--- a/distrib/mvmeppc/common/rdsetroot.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*	$OpenBSD: rdsetroot.c,v 1.1 2001/06/26 22:23:24 smurph Exp $	*/
-/*	$NetBSD: rdsetroot.c,v 1.2 1995/10/13 16:38:39 gwr Exp $	*/
-
-/*
- * Copyright (c) 1994 Gordon W. Ross
- * All rights reserved.
- *
- * ELF modifications Copyright (c) 1997 Per Fogelstrom.
- *
- * 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.
- */
-
-/*
- * Copy a ramdisk image into the space reserved for it.
- * Kernel variables: rd_root_size, rd_root_image
- */
-
-#include <sys/types.h>
-#include <sys/file.h>
-#include <sys/mman.h>
-
-#include <stdio.h>
-#include <nlist.h>
-#include <sys/exec_elf.h>
-
-extern off_t lseek();
-
-char *file;
-
-/* Virtual addresses of the symbols we frob. */
-long rd_root_image_va, rd_root_size_va;
-
-/* Offsets relative to start of data segment. */
-long rd_root_image_off, rd_root_size_off;
-
-/* value in the location at rd_root_size_off */
-int rd_root_size_val;
-
-/* pointers to pieces of mapped file */
-char *dataseg;
-
-/* parameters to mmap digged out from program header */
-int mmap_offs;
-int mmap_size;
-
-main(argc,argv)
-	char **argv;
-{
-	int fd, n;
-	int found;
-	int *ip;
-	char *cp;
-	Elf32_Ehdr eh;
-	Elf32_Phdr *ph;
-	int phsize;
-
-	if (argc < 2) {
-		printf("%s: missing file name\n", argv[0]);
-		exit(1);
-	}
-	file = argv[1];
-
-	fd = open(file, O_RDWR);
-	if (fd < 0) {
-		perror(file);
-		exit(1);
-	}
-
-	n = read(fd, &eh, sizeof(eh));
-	if (n < sizeof(eh)) {
-		printf("%s: reading header\n", file);
-		exit(1);
-	}
-
-	if (!IS_ELF(eh)) {
-		printf("%s: not elf\n", file);
-		exit(1);
-	}
-
-	phsize = eh.e_phnum * sizeof(Elf32_Phdr);
-	ph = (Elf32_Phdr *)malloc(phsize);
-	lseek(fd,  eh.e_phoff, 0);
-	if(read(fd, (char *)ph, phsize) != phsize) {
-		printf("%s: can't read phdr area\n", file);
-		exit(1);
-	}
-	found = 0;
-	for(n = 0; n < eh.e_phnum && !found; n++) {
-		if(ph[n].p_type == PT_LOAD) {
-			found = find_rd_root_image(file, &eh, &ph[n]);
-		}
-	}
-	if(!found) {
-		printf("%s: can't locate space for rd_root_image!", file);
-		exit(1);
-	}
-
-	/*
-	 * Map in the whole data segment.
-	 * The file offset needs to be page aligned.
-	 */
-	dataseg = mmap(NULL,	/* any address is ok */
-				   mmap_size, /* length */
-				   PROT_READ | PROT_WRITE,
-				   MAP_SHARED,
-				   fd, mmap_offs);
-	if ((long)dataseg == -1) {
-		printf("%s: can not map data seg\n", file);
-		perror(file);
-		exit(1);
-	}
-
-	/*
-	 * Find value in the location: rd_root_size
-	 */
-	ip = (int*) (dataseg + rd_root_size_off);
-	rd_root_size_val = *ip;
-#ifdef	DEBUG
-	printf("rd_root_size  val: 0x%08X (%d blocks)\n",
-		rd_root_size_val, (rd_root_size_val >> 9));
-#endif
-
-	/*
-	 * Copy the symbol table and string table.
-	 */
-#ifdef	DEBUG
-	printf("copying root image...\n");
-#endif
-	n = read(0, dataseg + rd_root_image_off,
-			 rd_root_size_val);
-	if (n < 0) {
-		perror("read");
-		exit(1);
-	}
-
-	msync(dataseg, mmap_size, 0);
-
-#ifdef	DEBUG
-	printf("...copied %d bytes\n", n);
-#endif
-	close(fd);
-	exit(0);
-}
-
-
-/*
- * Find locations of the symbols to patch.
- */
-struct nlist wantsyms[] = {
-	{ "_rd_root_size", 0 },
-	{ "_rd_root_image", 0 },
-	{ NULL, 0 },
-};
-
-int
-find_rd_root_image(file, eh, ph)
-	char *file;
-	Elf32_Ehdr *eh;
-	Elf32_Phdr *ph;
-{
-	int data_va;
-	int std_entry;
-	int kernel_start;
-	int kernel_size;
-
-	if (nlist(file, wantsyms)) {
-		printf("%s: no rd_root_image symbols?\n", file);
-		exit(1);
-	}
-	kernel_start = ph->p_paddr;
-	kernel_size = ph->p_filesz;
-
-	rd_root_size_off = wantsyms[0].n_value - kernel_start;
-	rd_root_image_off     = wantsyms[1].n_value - kernel_start;
-
-#ifdef DEBUG
-	printf("rd_root_size_off = 0x%x\n", rd_root_size_off);
-	printf("rd_root_image_off = 0x%x\n", rd_root_image_off);
-#endif
-
-	/*
-	 * Sanity check locations of db_* symbols
-	 */
-	if (rd_root_image_off < 0 || rd_root_image_off >= kernel_size) {
-		return(0);
-	}
-	if (rd_root_size_off < 0 || rd_root_size_off >= kernel_size) {
-		printf("%s: rd_root_size not in data segment?\n", file);
-		return(0);
-	}
-	mmap_offs = ph->p_offset;
-	mmap_size =  kernel_size;
-	return(1);
-}
diff --git a/distrib/mvmeppc/ramdisk/Makefile b/distrib/mvmeppc/ramdisk/Makefile
index 196fb48c226..37ed6dff9c8 100644
--- a/distrib/mvmeppc/ramdisk/Makefile
+++ b/distrib/mvmeppc/ramdisk/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.2 2002/04/25 22:10:28 deraadt Exp $
+#	$OpenBSD: Makefile,v 1.3 2002/04/28 09:42:49 deraadt Exp $
 
 TOP=		${.CURDIR}/..
 
@@ -69,8 +69,8 @@ rd_teardown:
 	-umount ${MOUNT_POINT}
 	-vnconfig -u ${VND}
 
-rdsetroot:	${TOP}/common/rdsetroot.c
-	${HOSTCC} -DDEBUG -o rdsetroot ${TOP}/common/rdsetroot.c
+rdsetroot:	${TOP}/../common/elfrdsetroot.c
+	${HOSTCC} -DDEBUG -o rdsetroot ${TOP}/../common/elfrdsetroot.c
 
 unconfig:
 	-umount -f ${MOUNT_POINT}