1 files changed, 0 insertions, 98 deletions
diff --git a/arch/i386/kernel/stacktrace.c b/arch/i386/kernel/stacktrace.c
deleted file mode 100644
index e62a037ab399..000000000000
--- a/arch/i386/kernel/stacktrace.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * arch/i386/kernel/stacktrace.c
- *
- * Stack trace management functions
- *
- *  Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- */
-#include <linux/sched.h>
-#include <linux/stacktrace.h>
-
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
-{
-	return	p > (void *)tinfo &&
-		p < (void *)tinfo + THREAD_SIZE - 3;
-}
-
-/*
- * Save stack-backtrace addresses into a stack_trace buffer:
- */
-static inline unsigned long
-save_context_stack(struct stack_trace *trace, unsigned int skip,
-		   struct thread_info *tinfo, unsigned long *stack,
-		   unsigned long ebp)
-{
-	unsigned long addr;
-
-#ifdef CONFIG_FRAME_POINTER
-	while (valid_stack_ptr(tinfo, (void *)ebp)) {
-		addr = *(unsigned long *)(ebp + 4);
-		if (!skip)
-			trace->entries[trace->nr_entries++] = addr;
-		else
-			skip--;
-		if (trace->nr_entries >= trace->max_entries)
-			break;
-		/*
-		 * break out of recursive entries (such as
-		 * end_of_stack_stop_unwind_function):
-	 	 */
-		if (ebp == *(unsigned long *)ebp)
-			break;
-
-		ebp = *(unsigned long *)ebp;
-	}
-#else
-	while (valid_stack_ptr(tinfo, stack)) {
-		addr = *stack++;
-		if (__kernel_text_address(addr)) {
-			if (!skip)
-				trace->entries[trace->nr_entries++] = addr;
-			else
-				skip--;
-			if (trace->nr_entries >= trace->max_entries)
-				break;
-		}
-	}
-#endif
-
-	return ebp;
-}
-
-/*
- * Save stack-backtrace addresses into a stack_trace buffer.
- * If all_contexts is set, all contexts (hardirq, softirq and process)
- * are saved. If not set then only the current context is saved.
- */
-void save_stack_trace(struct stack_trace *trace,
-		      struct task_struct *task, int all_contexts,
-		      unsigned int skip)
-{
-	unsigned long ebp;
-	unsigned long *stack = &ebp;
-
-	WARN_ON(trace->nr_entries || !trace->max_entries);
-
-	if (!task || task == current) {
-		/* Grab ebp right from our regs: */
-		asm ("movl %%ebp, %0" : "=r" (ebp));
-	} else {
-		/* ebp is the last reg pushed by switch_to(): */
-		ebp = *(unsigned long *) task->thread.esp;
-	}
-
-	while (1) {
-		struct thread_info *context = (struct thread_info *)
-				((unsigned long)stack & (~(THREAD_SIZE - 1)));
-
-		ebp = save_context_stack(trace, skip, context, stack, ebp);
-		stack = (unsigned long *)context->previous_esp;
-		if (!all_contexts || !stack ||
-				trace->nr_entries >= trace->max_entries)
-			break;
-		trace->entries[trace->nr_entries++] = ULONG_MAX;
-		if (trace->nr_entries >= trace->max_entries)
-			break;
-	}
-}
-