Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
41 lines
872 B
C
41 lines
872 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* arm64 callchain support
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*
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* Copyright (C) 2015 ARM Limited
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*/
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#include <linux/perf_event.h>
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#include <linux/stacktrace.h>
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#include <linux/uaccess.h>
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#include <asm/pointer_auth.h>
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static bool callchain_trace(void *data, unsigned long pc)
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{
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struct perf_callchain_entry_ctx *entry = data;
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return perf_callchain_store(entry, pc) == 0;
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}
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void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
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struct pt_regs *regs)
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{
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if (perf_guest_state()) {
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/* We don't support guest os callchain now */
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return;
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}
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arch_stack_walk_user(callchain_trace, entry, regs);
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}
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void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
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struct pt_regs *regs)
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{
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if (perf_guest_state()) {
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/* We don't support guest os callchain now */
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return;
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}
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arch_stack_walk(callchain_trace, entry, current, regs);
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}
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