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