函数源码

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source File:include\trace\events\printk.h Create Date:2022-07-27 11:05:30
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#endif /* _LINUX_SYSLOG_H */
#include <linux/cpu.h>
#include <linux/rculist.h>
#include <linux/poll.h>
#include <linux/irq_work.h>
#include <linux/ctype.h>
#include <linux/uio.h>
#include <linux/sched/clock.h>
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
 
#include <linux/uaccess.h>
#include <asm/sections.h>
 
#include <trace/events/initcall.h>
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM initcall
 
#if !defined(_TRACE_INITCALL_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_INITCALL_H
 
#include <linux/tracepoint.h>
 
TRACE_EVENT(initcall_level,
 
    TP_PROTO(const char *level),
 
    TP_ARGS(level),
 
    TP_STRUCT__entry(
        __string(level, level)
    ),
 
    TP_fast_assign(
        __assign_str(level, level);
    ),
 
    TP_printk("level=%s", __get_str(level))
);
 
TRACE_EVENT(initcall_start,
 
    TP_PROTO(initcall_t func),
 
    TP_ARGS(func),
 
    TP_STRUCT__entry(
        /*
         * Use field_struct to avoid is_signed_type()
         * comparison of a function pointer
         */
        __field_struct(initcall_t, func)
    ),
 
    TP_fast_assign(
        __entry->func = func;
    ),
 
    TP_printk("func=%pS", __entry->func)
);
 
TRACE_EVENT(initcall_finish,
 
    TP_PROTO(initcall_t func, int ret),
 
    TP_ARGS(func, ret),
 
    TP_STRUCT__entry(
        /*
         * Use field_struct to avoid is_signed_type()
         * comparison of a function pointer
         */
        __field_struct(initcall_t,  func)
        __field(int,            ret)
    ),
 
    TP_fast_assign(
        __entry->func = func;
        __entry->ret = ret;
    ),
 
    TP_printk("func=%pS ret=%d", __entry->func, __entry->ret)
);
 
#endif /* if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) */
 
/* This part must be outside protection */
#include <trace/define_trace.h>
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM printk
 
#if !defined(_TRACE_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_PRINTK_H
 
#include <linux/tracepoint.h>
 
TRACE_EVENT(console,
    TP_PROTO(const char *text, size_t len),
 
    TP_ARGS(text, len),
 
    TP_STRUCT__entry(
        __dynamic_array(char, msg, len + 1)
    ),
 
    TP_fast_assign(
        /*
         * Each trace entry is printed in a new line.
         * If the msg finishes with '\n', cut it off
         * to avoid blank lines in the trace.
         */
        if ((len > 0) && (text[len-1] == '\n'))
            len -= 1;
 
        memcpy(__get_str(msg), text, len);
        __get_str(msg)[len] = 0;
    ),
 
    TP_printk("%s", __get_str(msg))
);