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-rw-r--r--arch/sparc64/kernel/stacktrace.c64
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c
deleted file mode 100644
index acb12f673757..000000000000
--- a/arch/sparc64/kernel/stacktrace.c
+++ /dev/null
@@ -1,64 +0,0 @@
1#include <linux/sched.h>
2#include <linux/stacktrace.h>
3#include <linux/thread_info.h>
4#include <linux/module.h>
5#include <asm/ptrace.h>
6#include <asm/stacktrace.h>
7
8#include "kstack.h"
9
10static void __save_stack_trace(struct thread_info *tp,
11 struct stack_trace *trace,
12 bool skip_sched)
13{
14 unsigned long ksp, fp;
15
16 if (tp == current_thread_info()) {
17 stack_trace_flush();
18 __asm__ __volatile__("mov %%fp, %0" : "=r" (ksp));
19 } else {
20 ksp = tp->ksp;
21 }
22
23 fp = ksp + STACK_BIAS;
24 do {
25 struct sparc_stackf *sf;
26 struct pt_regs *regs;
27 unsigned long pc;
28
29 if (!kstack_valid(tp, fp))
30 break;
31
32 sf = (struct sparc_stackf *) fp;
33 regs = (struct pt_regs *) (sf + 1);
34
35 if (kstack_is_trap_frame(tp, regs)) {
36 if (!(regs->tstate & TSTATE_PRIV))
37 break;
38 pc = regs->tpc;
39 fp = regs->u_regs[UREG_I6] + STACK_BIAS;
40 } else {
41 pc = sf->callers_pc;
42 fp = (unsigned long)sf->fp + STACK_BIAS;
43 }
44
45 if (trace->skip > 0)
46 trace->skip--;
47 else if (!skip_sched || !in_sched_functions(pc))
48 trace->entries[trace->nr_entries++] = pc;
49 } while (trace->nr_entries < trace->max_entries);
50}
51
52void save_stack_trace(struct stack_trace *trace)
53{
54 __save_stack_trace(current_thread_info(), trace, false);
55}
56EXPORT_SYMBOL_GPL(save_stack_trace);
57
58void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
59{
60 struct thread_info *tp = task_thread_info(tsk);
61
62 __save_stack_trace(tp, trace, true);
63}
64EXPORT_SYMBOL_GPL(save_stack_trace_tsk);