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Diffstat (limited to 'arch/avr32/kernel/stacktrace.c')
-rw-r--r--arch/avr32/kernel/stacktrace.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/avr32/kernel/stacktrace.c b/arch/avr32/kernel/stacktrace.c
deleted file mode 100644
index f8cc995cf0e0..000000000000
--- a/arch/avr32/kernel/stacktrace.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Stack trace management functions
- *
- * Copyright (C) 2007 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/stacktrace.h>
-#include <linux/thread_info.h>
-#include <linux/module.h>
-
-register unsigned long current_frame_pointer asm("r7");
-
-struct stackframe {
- unsigned long lr;
- unsigned long fp;
-};
-
-/*
- * Save stack-backtrace addresses into a stack_trace buffer.
- */
-void save_stack_trace(struct stack_trace *trace)
-{
- unsigned long low, high;
- unsigned long fp;
- struct stackframe *frame;
- int skip = trace->skip;
-
- low = (unsigned long)task_stack_page(current);
- high = low + THREAD_SIZE;
- fp = current_frame_pointer;
-
- while (fp >= low && fp <= (high - 8)) {
- frame = (struct stackframe *)fp;
-
- if (skip) {
- skip--;
- } else {
- trace->entries[trace->nr_entries++] = frame->lr;
- if (trace->nr_entries >= trace->max_entries)
- break;
- }
-
- /*
- * The next frame must be at a higher address than the
- * current frame.
- */
- low = fp + 8;
- fp = frame->fp;
- }
-}
-EXPORT_SYMBOL_GPL(save_stack_trace);