#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include "ptrace.h"
/*static*/ void __dump_stack(struct task_struct *tsk, unsigned long sp)
{
- dump_mem("Stack: ", sp, 8192+(unsigned long)tsk->thread_info);
+ dump_mem("Stack: ", sp, 8192+(unsigned long)task_stack_page(tsk));
}
void dump_stack(void)
} else if (verify_stack(fp)) {
printk("invalid frame pointer 0x%08x", fp);
ok = 0;
- } else if (fp < (unsigned long)(tsk->thread_info + 1))
+ } else if (fp < (unsigned long)end_of_stack(tsk))
printk("frame pointer underflow");
printk("\n");
/* FIXME - this is probably wrong.. */
void show_stack(struct task_struct *task, unsigned long *sp) {
- dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task->thread_info);
+ dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task_stack_page(task));
}
DEFINE_SPINLOCK(die_lock);
printk("Internal error: %s: %x\n", str, err);
printk("CPU: %d\n", smp_processor_id());
show_regs(regs);
- printk("Process %s (pid: %d, stack limit = 0x%p)\n",
- current->comm, current->pid, tsk->thread_info + 1);
+ printk("Process %s (pid: %d[#%u], stack limit = 0x%p)\n",
+ current->comm, current->pid,
+ current->xid, end_of_stack(tsk));
if (!user_mode(regs) || in_interrupt()) {
__dump_stack(tsk, (unsigned long)(regs + 1));
die(str, regs, err);
}
-static DECLARE_MUTEX(undef_sem);
+static DEFINE_MUTEX(undef_mutex);
static int (*undef_hook)(struct pt_regs *);
int request_undef_hook(int (*fn)(struct pt_regs *))
{
int ret = -EBUSY;
- down(&undef_sem);
+ mutex_lock(&undef_mutex);
if (undef_hook == NULL) {
undef_hook = fn;
ret = 0;
}
- up(&undef_sem);
+ mutex_unlock(&undef_mutex);
return ret;
}
{
int ret = -EINVAL;
- down(&undef_sem);
+ mutex_lock(&undef_mutex);
if (undef_hook == fn) {
undef_hook = NULL;
ret = 0;
}
- up(&undef_sem);
+ mutex_unlock(&undef_mutex);
return ret;
}