diff options
Diffstat (limited to 'arch/sparc64/kernel/stacktrace.c')
-rw-r--r-- | arch/sparc64/kernel/stacktrace.c | 64 |
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 | |||
10 | static 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 | |||
52 | void save_stack_trace(struct stack_trace *trace) | ||
53 | { | ||
54 | __save_stack_trace(current_thread_info(), trace, false); | ||
55 | } | ||
56 | EXPORT_SYMBOL_GPL(save_stack_trace); | ||
57 | |||
58 | void 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 | } | ||
64 | EXPORT_SYMBOL_GPL(save_stack_trace_tsk); | ||