* Copyright (C) 2000 Grant Grundler <grundler with parisc-linux.org>
* Copyright (C) 2001 Alan Modra <amodra at parisc-linux.org>
* Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org>
- * Copyright (C) 2001-2002 Helge Deller <deller at parisc-linux.org>
+ * Copyright (C) 2001-2007 Helge Deller <deller at parisc-linux.org>
* Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
*
*
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/fs.h>
#include <linux/module.h>
#include <linux/personality.h>
#include <linux/ptrace.h>
#include <asm/uaccess.h>
#include <asm/unwind.h>
-static int hlt_counter __read_mostly;
-
-/*
- * Power off function, if any
- */
-void (*pm_power_off)(void);
-
-void disable_hlt(void)
-{
- hlt_counter++;
-}
-
-EXPORT_SYMBOL(disable_hlt);
-
-void enable_hlt(void)
-{
- hlt_counter--;
-}
-
-EXPORT_SYMBOL(enable_hlt);
-
-void default_idle(void)
-{
- barrier();
-}
-
/*
* The idle thread. There's no useful work to be
* done, so just try to conserve power and have a
*/
}
+void (*chassis_power_off)(void);
/*
* This routine is called from sys_reboot to actually turn off the
void machine_power_off(void)
{
/* If there is a registered power off handler, call it. */
- if(pm_power_off)
- pm_power_off();
+ if (chassis_power_off)
+ chassis_power_off();
/* Put the soft power button back under hardware control.
* If the user had already pressed the power button, the
KERN_EMERG "Please power this system off now.");
}
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
/*
* Create a kernel thread
* Copy function and argument to be called from
* ret_from_kernel_thread.
*/
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
cregs->gr[27] = pregs->gr[27];
#endif
cregs->gr[26] = pregs->gr[26];
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
- error = do_execve(filename, (char __user **) regs->gr[25],
- (char __user **) regs->gr[24], regs);
+ error = do_execve(filename, (char __user * __user *) regs->gr[25],
+ (char __user * __user *) regs->gr[24], regs);
if (error == 0) {
task_lock(current);
current->ptrace &= ~PT_DTRACE;
return error;
}
-unsigned long
+extern int __execve(const char *filename, char *const argv[],
+ char *const envp[], struct task_struct *task);
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ return __execve(filename, argv, envp, current);
+}
+
+unsigned long
get_wchan(struct task_struct *p)
{
struct unwind_frame_info info;
unsigned long ip;
int count = 0;
+
+ if (!p || p == current || p->state == TASK_RUNNING)
+ return 0;
+
/*
* These bracket the sleeping functions..
*/