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https://github.com/commaai/agnos-kernel-sdm845.git
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d16ae5ddbc
Add trace events to control aborting CoreSight trace dynamically based on module parameter. Coresight driver will dump any trace present in the current sink in case we hit a kernel panic, user fault or an undefined instruction. Change-Id: I668c8cda285250a0b8dcccd2c1d2a8471977ce5c Signed-off-by: Satyajit Desai <sadesai@codeaurora.org> Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>
125 lines
2.3 KiB
C
125 lines
2.3 KiB
C
/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM exception
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#if !defined(_TRACE_EXCEPTION_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_EXCEPTION_H
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#include <linux/tracepoint.h>
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struct task_struct;
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TRACE_EVENT(user_fault,
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TP_PROTO(struct task_struct *tsk, unsigned long addr, unsigned int fsr),
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TP_ARGS(tsk, addr, fsr),
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TP_STRUCT__entry(
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__string(task_name, tsk->comm)
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__field(unsigned long, addr)
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__field(unsigned int, fsr)
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),
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TP_fast_assign(
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__assign_str(task_name, tsk->comm)
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__entry->addr = addr;
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__entry->fsr = fsr;
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),
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TP_printk("task_name:%s addr:%lu, fsr:%u", __get_str(task_name),
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__entry->addr, __entry->fsr)
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);
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struct pt_regs;
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TRACE_EVENT(undef_instr,
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TP_PROTO(struct pt_regs *regs, void __user *prog_cnt),
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TP_ARGS(regs, prog_cnt),
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TP_STRUCT__entry(
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__field(void __user *, prog_cnt)
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__field(struct pt_regs *, regs)
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),
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TP_fast_assign(
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__entry->regs = regs;
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__entry->prog_cnt = prog_cnt;
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),
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TP_printk("pc:%p", __entry->prog_cnt)
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);
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TRACE_EVENT(unhandled_abort,
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TP_PROTO(struct pt_regs *regs, unsigned long addr, unsigned int fsr),
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TP_ARGS(regs, addr, fsr),
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TP_STRUCT__entry(
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__field(struct pt_regs *, regs)
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__field(unsigned long, addr)
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__field(unsigned int, fsr)
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),
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TP_fast_assign(
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__entry->regs = regs;
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__entry->addr = addr;
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__entry->fsr = fsr;
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),
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TP_printk("addr:%lu, fsr:%u", __entry->addr, __entry->fsr)
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);
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TRACE_EVENT(kernel_panic,
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TP_PROTO(long dummy),
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TP_ARGS(dummy),
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TP_STRUCT__entry(
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__field(long, dummy)
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),
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TP_fast_assign(
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__entry->dummy = dummy;
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),
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TP_printk("dummy:%ld", __entry->dummy)
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);
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TRACE_EVENT(kernel_panic_late,
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TP_PROTO(long dummy),
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TP_ARGS(dummy),
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TP_STRUCT__entry(
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__field(long, dummy)
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),
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TP_fast_assign(
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__entry->dummy = dummy;
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),
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TP_printk("dummy:%ld", __entry->dummy)
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);
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#endif
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#include <trace/define_trace.h>
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