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authorTheo de Raadt <deraadt@cvs.openbsd.org>2013-10-18 14:04:25 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2013-10-18 14:04:25 +0000
commita2ec7aa5c9b0b79425893920d7332bd61d738ea5 (patch)
treeb9b3aa9b6aa4609e62a54eb3bfed0ad43a4b60bf /distrib
parent22f6148911aa607f3ed4f23c188b8ccc4515fc7c (diff)
bye bye rdsetroot; ok miod
Diffstat (limited to 'distrib')
-rw-r--r--distrib/common/rdsetroot.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/distrib/common/rdsetroot.c b/distrib/common/rdsetroot.c
deleted file mode 100644
index 6b48b8237dd..00000000000
--- a/distrib/common/rdsetroot.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/* $OpenBSD: rdsetroot.c,v 1.20 2009/04/17 07:23:27 deraadt Exp $ */
-/* $NetBSD: rdsetroot.c,v 1.2 1995/10/13 16:38:39 gwr Exp $ */
-
-/*
- * Copyright (c) 1994 Gordon W. Ross
- * Copyright (c) 1997 Per Fogelstrom. (ELF modifications)
- * All rights reserved.
- *
- * 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 <sys/stat.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <nlist.h>
-
-#include <a.out.h>
-struct exec head;
-
-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 */
-off_t rd_root_size_val;
-
-/* pointers to pieces of mapped file */
-char *dataseg;
-
-/* and lengths */
-int data_len;
-off_t mmap_off;
-int data_pgoff;
-
-int find_rd_root_image(char *);
-__dead void usage(void);
-
-int debug;
-
-int
-main(int argc, char *argv[])
-{
- int ch, fd, n, xflag = 0, fsd;
- char *fs = NULL;
- u_int32_t *ip;
-
- while ((ch = getopt(argc, argv, "dx")) != -1) {
- switch (ch) {
- case 'd':
- debug = 1;
- break;
- case 'x':
- xflag = 1;
- break;
- default:
- usage();
- }
- }
- argc -= optind;
- argv += optind;
-
- if (argc == 1)
- file = argv[0];
- else if (argc == 2) {
- file = argv[0];
- fs = argv[1];
- } else
- usage();
-
- fd = open(file, xflag ? O_RDONLY : O_RDWR, 0644);
- if (fd < 0) {
- perror(file);
- exit(1);
- }
-
- if (fs) {
- if (xflag)
- fsd = open(fs, O_RDWR | O_CREAT | O_TRUNC, 0644);
- else
- fsd = open(fs, O_RDONLY, 0644);
- } else {
- if (xflag)
- fsd = dup(STDOUT_FILENO);
- else
- fsd = dup(STDIN_FILENO);
- }
- if (fsd < 0) {
- perror(fs);
- exit(1);
- }
-
- n = read(fd, &head, sizeof(head));
- if (n < sizeof(head)) {
- fprintf(stderr, "%s: reading header\n", file);
- exit(1);
- }
-
- if (N_BADMAG(head)) {
- fprintf(stderr, "%s: bad magic number\n", file);
- exit(1);
- }
-
- if (debug) {
- fprintf(stderr, " text: %9d\n", head.a_text);
- fprintf(stderr, " data: %9d\n", head.a_data);
- fprintf(stderr, " bss: %9d\n", head.a_bss);
- fprintf(stderr, " syms: %9d\n", head.a_syms);
- fprintf(stderr, "entry: 0x%08X\n", head.a_entry);
- fprintf(stderr, "trsiz: %9d\n", head.a_trsize);
- fprintf(stderr, "drsiz: %9d\n", head.a_drsize);
- }
-
- if (head.a_syms <= 0) {
- fprintf(stderr, "%s: no symbols\n", file);
- exit(1);
- }
- if (head.a_trsize || head.a_drsize) {
- fprintf(stderr, "%s: has relocations\n", file);
- exit(1);
- }
-
- find_rd_root_image(file);
-
- /*
- * Map in the whole data segment.
- * The file offset needs to be page aligned.
- */
- mmap_off = N_DATOFF(head);
-
-#ifdef BROKEN_NMAGIC
- /*
- * XXX it seems that our ld has a bug when generating NMAGIC files.
- * the data segment ends up one page too far into the file.
- */
- if (N_GETMAGIC(head) == NMAGIC)
- mmap_off += __LDPGSZ;
-#endif
-
- data_len = head.a_data;
- /* align... */
- data_pgoff = N_PAGSIZ(head) - 1;
- data_pgoff &= mmap_off;
- mmap_off -= data_pgoff;
- data_len += data_pgoff;
- /* map in in... */
- dataseg = mmap(NULL, data_len,
- xflag ? PROT_READ : PROT_READ | PROT_WRITE,
- MAP_SHARED, fd, mmap_off);
- if (dataseg == MAP_FAILED) {
- fprintf(stderr, "%s: can not map data seg\n", file);
- perror(file);
- exit(1);
- }
- dataseg += data_pgoff;
-
- /*
- * Find value in the location: rd_root_size
- */
- ip = (u_int32_t *) (dataseg + rd_root_size_off);
- rd_root_size_val = *ip;
- if (debug)
- fprintf(stderr, "rd_root_size val: 0x%llx (%lld blocks)\n",
- (unsigned long long)rd_root_size_val,
- (unsigned long long)rd_root_size_val >> 9);
-
- /*
- * Copy the symbol table and string table.
- */
- if (debug)
- fprintf(stderr, "copying root image...\n");
-
- if (xflag) {
- n = write(fsd, dataseg + rd_root_image_off,
- (size_t)rd_root_size_val);
- if (n != rd_root_size_val) {
- perror("write");
- exit(1);
- }
- } else {
- struct stat sstat;
-
- if (fstat(fsd, &sstat) == -1) {
- perror("fstat");
- exit(1);
- }
- if (S_ISREG(sstat.st_mode) &&
- sstat.st_size > rd_root_size_val) {
- fprintf(stderr, "ramdisk too small 0x%llx 0x%llx\n",
- (unsigned long long)sstat.st_size,
- (unsigned long long)rd_root_size_val);
- exit(1);
- }
- n = read(fsd, dataseg + rd_root_image_off,
- (size_t)rd_root_size_val);
- if (n < 0) {
- perror("read");
- exit(1);
- }
-
- msync(dataseg - data_pgoff, data_len, 0);
- }
-
- if (debug)
- fprintf(stderr, "...copied %d bytes\n", n);
- 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(char *file)
-{
- int data_va, std_entry;
-
- if (nlist(file, wantsyms)) {
- fprintf(stderr, "%s: no rd_root_image symbols?\n", file);
- exit(1);
- }
- std_entry = N_TXTADDR(head) + (head.a_entry & (N_PAGSIZ(head)-1));
- data_va = N_DATADDR(head);
- if (head.a_entry != std_entry) {
- fprintf(stderr,
- "%s: warning: non-standard entry point: 0x%08x\n", file,
- head.a_entry);
- fprintf(stderr, "\texpecting entry=0x%x\n", std_entry);
- data_va += (head.a_entry - std_entry);
- }
-
- rd_root_size_off = wantsyms[0].n_value - data_va;
- rd_root_image_off = wantsyms[1].n_value - data_va;
-
- if (debug) {
- fprintf(stderr, "data segment va: 0x%x\n", data_va);
- fprintf(stderr, "rd_root_size va: 0x%x\n", wantsyms[0].n_value);
- fprintf(stderr, "rd_root_image va: 0x%x\n", wantsyms[1].n_value);
- fprintf(stderr, "rd_root_size off: 0x%x\n", rd_root_size_off);
- fprintf(stderr, "rd_root_image off: 0x%x\n", rd_root_image_off);
- }
-
- /*
- * Sanity check locations of db_* symbols
- */
- if (rd_root_image_off < 0 || rd_root_image_off >= head.a_data) {
- fprintf(stderr, "%s: rd_root_image not in data segment?\n", file);
- exit(1);
- }
- if (rd_root_size_off < 0 || rd_root_size_off >= head.a_data) {
- fprintf(stderr, "%s: rd_root_size not in data segment?\n", file);
- exit(1);
- }
- return (1);
-}
-
-__dead void
-usage(void)
-{
- extern char *__progname;
-
- fprintf(stderr, "usage: %s [-dx] bsd [fs]\n", __progname);
- exit(1);
-}