mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
5097a69d67
Extract nifty FILE_LINE useful for printk style debugging:
printk("%s\n", FILE_LINE);
It should not be used en mass probably because __FILE__ string literals
can be merged while FILE_LINE's won't. But for debugging it is what
the doctor ordered.
Don't add leading and trailing underscores, they're painful to type.
Trust me, I've tried both versions.
Link: https://lkml.kernel.org/r/ebf12ac4-5a61-4b12-b8b0-1253eb371332@p183
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*****************************************************************************
|
|
|
|
AudioScience HPI driver
|
|
Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
|
|
|
|
|
|
Debug macros.
|
|
|
|
*****************************************************************************/
|
|
|
|
#ifndef _HPIDEBUG_H
|
|
#define _HPIDEBUG_H
|
|
|
|
#include "hpi_internal.h"
|
|
|
|
/* Define debugging levels. */
|
|
enum { HPI_DEBUG_LEVEL_ERROR = 0, /* always log errors */
|
|
HPI_DEBUG_LEVEL_WARNING = 1,
|
|
HPI_DEBUG_LEVEL_NOTICE = 2,
|
|
HPI_DEBUG_LEVEL_INFO = 3,
|
|
HPI_DEBUG_LEVEL_DEBUG = 4,
|
|
HPI_DEBUG_LEVEL_VERBOSE = 5 /* same printk level as DEBUG */
|
|
};
|
|
|
|
#define HPI_DEBUG_LEVEL_DEFAULT HPI_DEBUG_LEVEL_NOTICE
|
|
|
|
/* an OS can define an extra flag string that is appended to
|
|
the start of each message, eg see linux kernel hpios.h */
|
|
|
|
#ifdef SOURCEFILE_NAME
|
|
#undef FILE_LINE
|
|
#define FILE_LINE SOURCEFILE_NAME ":" __stringify(__LINE__) " "
|
|
#endif
|
|
|
|
#define HPI_DEBUG_ASSERT(expression) \
|
|
do { \
|
|
if (!(expression)) { \
|
|
printk(KERN_ERR FILE_LINE \
|
|
" ASSERT " __stringify(expression)); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define HPI_DEBUG_LOG(level, ...) \
|
|
do { \
|
|
if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \
|
|
printk(HPI_DEBUG_FLAG_##level \
|
|
FILE_LINE " " __VA_ARGS__); \
|
|
} \
|
|
} while (0)
|
|
|
|
void hpi_debug_init(void);
|
|
int hpi_debug_level_set(int level);
|
|
int hpi_debug_level_get(void);
|
|
/* needed by Linux driver for dynamic debug level changes */
|
|
extern int hpi_debug_level;
|
|
|
|
void hpi_debug_message(struct hpi_message *phm, char *sz_fileline);
|
|
|
|
void hpi_debug_data(u16 *pdata, u32 len);
|
|
|
|
#define HPI_DEBUG_DATA(pdata, len) \
|
|
do { \
|
|
if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE) \
|
|
hpi_debug_data(pdata, len); \
|
|
} while (0)
|
|
|
|
#define HPI_DEBUG_MESSAGE(level, phm) \
|
|
do { \
|
|
if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \
|
|
hpi_debug_message(phm, HPI_DEBUG_FLAG_##level \
|
|
FILE_LINE " " __stringify(level)); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define HPI_DEBUG_RESPONSE(phr) \
|
|
do { \
|
|
if (((hpi_debug_level >= HPI_DEBUG_LEVEL_DEBUG) && \
|
|
(phr->error)) ||\
|
|
(hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE)) \
|
|
printk(KERN_DEBUG "HPI_RES%d,%d,%d\n", \
|
|
phr->version, phr->error, phr->specific_error); \
|
|
} while (0)
|
|
|
|
#ifndef compile_time_assert
|
|
#define compile_time_assert(cond, msg) \
|
|
typedef char msg[(cond) ? 1 : -1]
|
|
#endif
|
|
|
|
#endif /* _HPIDEBUG_H_ */
|