prelink/patches/prelink-20040707-init.patch

--- prelink-20040707/src/main.c.jj	2004-09-09 09:53:05.281838640 -0700
+++ prelink-20040707/src/main.c	2004-09-09 10:31:09.029656200 -0700
@@ -58,6 +58,8 @@
 const char *prelink_conf = PRELINK_CONF;
 const char *prelink_cache = PRELINK_CACHE;
 const char *undo_output;
+int noreexecinit;
+time_t initctime;
 
 const char *argp_program_version = "prelink 1.0";
 
@@ -111,6 +113,7 @@
   {"mmap-region-end",	OPT_MMAP_REG_END, "BASE_ADDRESS", OPTION_HIDDEN, "" },
   {"seed",		OPT_SEED, "SEED", OPTION_HIDDEN, "" },
   {"compute-checksum",	OPT_COMPUTE_CHECKSUM, 0, OPTION_HIDDEN, "" },
+  {"init",		'i', 0, 0,  "Do not re-execute init" },
   { 0 }
 };
 
@@ -222,12 +225,29 @@
     case OPT_COMPUTE_CHECKSUM:
       compute_checksum = 1;
       break;
+	case 'i':
+	  noreexecinit=1;
+	  break;
     default:
       return ARGP_ERR_UNKNOWN;
     }
   return 0;
 }
 
+time_t get_ctime(const char *file) {
+  struct stat st;
+  if(stat(file,&st) == 0)
+    return st.st_ctime;
+  return 0;
+}
+
+void checkinit() {
+    if(initctime != get_ctime("/sbin/init")) {
+	  printf("Executing /sbin/init U\n");
+      system("/sbin/init U");
+	}
+}
+
 static struct argp argp = { options, parse_opt, "[FILES]", argp_doc };
 
 int
@@ -247,6 +267,11 @@
 
   argp_parse (&argp, argc, argv, 0, &remaining, 0);
 
+  if(!noreexecinit) {
+    initctime = get_ctime("/sbin/init");
+	atexit(checkinit);
+  }
+
   if (ld_library_path == NULL)
     ld_library_path = getenv ("LD_LIBRARY_PATH");
 
1	--- prelink-20040707/src/main.c.jj 2004-09-09 09:53:05.281838640 -0700
2	+++ prelink-20040707/src/main.c 2004-09-09 10:31:09.029656200 -0700
3	@@ -58,6 +58,8 @@
4	const char *prelink_conf = PRELINK_CONF;
5	const char *prelink_cache = PRELINK_CACHE;
6	const char *undo_output;
7	+int noreexecinit;
8	+time_t initctime;
9
10	const char *argp_program_version = "prelink 1.0";
11
12	@@ -111,6 +113,7 @@
13	{"mmap-region-end", OPT_MMAP_REG_END, "BASE_ADDRESS", OPTION_HIDDEN, "" },
14	{"seed", OPT_SEED, "SEED", OPTION_HIDDEN, "" },
15	{"compute-checksum", OPT_COMPUTE_CHECKSUM, 0, OPTION_HIDDEN, "" },
16	+ {"init", 'i', 0, 0, "Do not re-execute init" },
17	{ 0 }
18	};
19
20	@@ -222,12 +225,29 @@
21	case OPT_COMPUTE_CHECKSUM:
22	compute_checksum = 1;
23	break;
24	+ case 'i':
25	+ noreexecinit=1;
26	+ break;
27	default:
28	return ARGP_ERR_UNKNOWN;
29	}
30	return 0;
31	}
32
33	+time_t get_ctime(const char *file) {
34	+ struct stat st;
35	+ if(stat(file,&st) == 0)
36	+ return st.st_ctime;
37	+ return 0;
38	+}
39	+
40	+void checkinit() {
41	+ if(initctime != get_ctime("/sbin/init")) {
42	+ printf("Executing /sbin/init U\n");
43	+ system("/sbin/init U");
44	+ }
45	+}
46	+
47	static struct argp argp = { options, parse_opt, "[FILES]", argp_doc };
48
49	int
50	@@ -247,6 +267,11 @@
51
52	argp_parse (&argp, argc, argv, 0, &remaining, 0);
53
54	+ if(!noreexecinit) {
55	+ initctime = get_ctime("/sbin/init");
56	+ atexit(checkinit);
57	+ }
58	+
59	if (ld_library_path == NULL)
60	ld_library_path = getenv ("LD_LIBRARY_PATH");
61