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parisc: Consolidate unwind initialization calls

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Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2018-08-17 17:00:08 +02:00
parent 54c770da99
commit 9e0d5c451f
4 changed files with 36 additions and 57 deletions
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15
arch/parisc/kernel/stacktrace.c
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@@ -16,20 +16,7 @@ static void dump_trace(struct task_struct *task, struct stack_trace *trace)
{
struct unwind_frame_info info;
/* initialize unwind info */
if (task == current) {
unsigned long sp;
struct pt_regs r;
HERE:
asm volatile ("copy %%r30, %0" : "=r"(sp));
memset(&r, 0, sizeof(struct pt_regs));
r.iaoq[0] = (unsigned long)&&HERE;
r.gr[2] = (unsigned long)__builtin_return_address(0);
r.gr[30] = sp;
unwind_frame_init(&info, task, &r);
} else {
unwind_frame_init_from_blocked_task(&info, task);
}
unwind_frame_init_task(&info, task, NULL);
/* unwind stack and save entries in stack_trace struct */
trace->nr_entries = 0;