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-rw-r--r--arch/cris/kernel/stacktrace.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/arch/cris/kernel/stacktrace.c b/arch/cris/kernel/stacktrace.c
deleted file mode 100644
index f1cc3aaacd8d..000000000000
--- a/arch/cris/kernel/stacktrace.c
+++ /dev/null
@@ -1,76 +0,0 @@
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/stacktrace.h>
-#include <asm/stacktrace.h>
-
-void walk_stackframe(unsigned long sp,
- int (*fn)(unsigned long addr, void *data),
- void *data)
-{
- unsigned long high = ALIGN(sp, THREAD_SIZE);
-
- for (; sp <= high - 4; sp += 4) {
- unsigned long addr = *(unsigned long *) sp;
-
- if (!kernel_text_address(addr))
- continue;
-
- if (fn(addr, data))
- break;
- }
-}
-
-struct stack_trace_data {
- struct stack_trace *trace;
- unsigned int no_sched_functions;
- unsigned int skip;
-};
-
-#ifdef CONFIG_STACKTRACE
-
-static int save_trace(unsigned long addr, void *d)
-{
- struct stack_trace_data *data = d;
- struct stack_trace *trace = data->trace;
-
- if (data->no_sched_functions && in_sched_functions(addr))
- return 0;
-
- if (data->skip) {
- data->skip--;
- return 0;
- }
-
- trace->entries[trace->nr_entries++] = addr;
-
- return trace->nr_entries >= trace->max_entries;
-}
-
-void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
-{
- struct stack_trace_data data;
- unsigned long sp;
-
- data.trace = trace;
- data.skip = trace->skip;
-
- if (tsk != current) {
- data.no_sched_functions = 1;
- sp = tsk->thread.ksp;
- } else {
- data.no_sched_functions = 0;
- sp = rdsp();
- }
-
- walk_stackframe(sp, save_trace, &data);
- if (trace->nr_entries < trace->max_entries)
- trace->entries[trace->nr_entries++] = ULONG_MAX;
-}
-
-void save_stack_trace(struct stack_trace *trace)
-{
- save_stack_trace_tsk(current, trace);
-}
-EXPORT_SYMBOL_GPL(save_stack_trace);
-
-#endif /* CONFIG_STACKTRACE */