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// SPDX-License-Identifier: GPL-2.0
/*
* Performance event support for parisc
*
* Copyright (C) 2025 by Helge Deller <deller@gmx.de>
*/
#include <linux/kernel.h>
#include <linux/perf_event.h>
#include <asm/unwind.h>
void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
struct pt_regs *regs)
{
struct unwind_frame_info info;
unwind_frame_init_task(&info, current, NULL);
while (1) {
if (unwind_once(&info) < 0 || info.ip == 0)
break;
if (!__kernel_text_address(info.ip) ||
perf_callchain_store(entry, info.ip))
return;
}
}
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