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c0735ae9a0
The SH implementation never called stacktrace_ops.stack(). Presumably this was copied from the x86 implementation. Hence remove the method, and all implementations (most of them are dummies). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rich Felker <dalias@libc.org>
32 lines
764 B
C
32 lines
764 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Performance event callchain support - SuperH architecture code
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*
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* Copyright (C) 2009 Paul Mundt
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/perf_event.h>
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#include <linux/percpu.h>
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#include <asm/unwinder.h>
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#include <asm/ptrace.h>
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static void callchain_address(void *data, unsigned long addr, int reliable)
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{
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struct perf_callchain_entry_ctx *entry = data;
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if (reliable)
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perf_callchain_store(entry, addr);
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}
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static const struct stacktrace_ops callchain_ops = {
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.address = callchain_address,
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};
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void
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perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
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{
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perf_callchain_store(entry, regs->pc);
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unwind_stack(NULL, regs, NULL, &callchain_ops, entry);
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}
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