sash.patch

linux交叉编译环境个软件和内核的补丁。

--- linux-2.2.13/arch/ppc/config.in.ORIG	Sun Jan  9 11:57:17 2000
+++ linux-2.2.13/arch/ppc/config.in	Sun Jan  9 13:11:36 2000
@@ -48,6 +48,10 @@
 
 if [ "$CONFIG_8xx" = "y" ]; then
   bool 'Math emulation' CONFIG_MATH_EMULATION
+  bool 'Standalone Shell' CONFIG_SASH
+  if [ "$CONFIG_SASH" = "y" ]; then
+    string '  Shell Path' CONFIG_SASH_PATH /bin/sh
+  fi
 else
   if [ "$CONFIG_PPC64" != "y" ];then
     define_bool CONFIG_6xx y
--- linux-2.2.13/init/main.c.ORIG	Tue Oct 19 23:35:58 1999
+++ linux-2.2.13/init/main.c	Sun Jan  9 12:47:09 2000
@@ -375,8 +375,13 @@
 int root_mountflags = MS_RDONLY;
 char *execute_command = NULL;
 
+#ifdef CONFIG_SASH
+static char * argv_init[MAX_INIT_ARGS+2] = { "sash", NULL, };
+static char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
+#else
 static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
 static char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
+#endif
 
 char *get_options(char *str, int *ints)
 {
@@ -1254,6 +1259,18 @@
 }
 #endif
 
+#ifdef CONFIG_SASH
+static int do_linux_sash(void *unused)
+{
+	close(0);close(1);close(2);
+	setsid();
+	(void) open("/dev/console",O_RDWR,0);
+	(void) dup(0);
+	(void) dup(0);
+	return execve(CONFIG_SASH_PATH, argv_init, envp_init);
+}
+#endif
+
 struct task_struct *child_reaper = &init_task;
 
 /*
@@ -1396,6 +1413,16 @@
 	 */
 	free_initmem();
 	unlock_kernel();
+#ifdef CONFIG_SASH
+	{
+		int i, pid;
+
+		pid = kernel_thread(do_linux_sash, "sash", SIGCHLD);
+		if (pid > 0)
+			while (pid != wait(&i));
+	}
+	printk ("SASH terminated\n");
+#else
 
 	if (open("/dev/console", O_RDWR, 0) < 0)
 		printk("Warning: unable to open an initial console.\n");
@@ -1416,5 +1443,6 @@
 	execve("/etc/init",argv_init,envp_init);
 	execve("/bin/init",argv_init,envp_init);
 	execve("/bin/sh",argv_init,envp_init);
+#endif
 	panic("No init found.  Try passing init= option to kernel.");
 }