2 * include/asm-s390/debug.h
5 * Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH,
12 #include <linux/config.h>
14 #include <linux/string.h>
17 * struct __debug_entry must be defined outside of #ifdef __KERNEL__
18 * in order to allow a user program to analyze the 'raw'-view.
24 unsigned long long clock
:52;
25 unsigned long long exception
:1;
26 unsigned long long level
:3;
27 unsigned long long cpuid
:8;
30 unsigned long long stck
;
33 } __attribute__((packed
));
36 #define __DEBUG_FEATURE_VERSION 2 /* version of debug feature */
39 #include <linux/spinlock.h>
40 #include <linux/kernel.h>
41 #include <linux/time.h>
43 #define DEBUG_MAX_LEVEL 6 /* debug levels range from 0 to 6 */
44 #define DEBUG_OFF_LEVEL -1 /* level where debug is switched off */
45 #define DEBUG_FLUSH_ALL -1 /* parameter to flush all areas */
46 #define DEBUG_MAX_VIEWS 10 /* max number of views in proc fs */
47 #define DEBUG_MAX_NAME_LEN 64 /* max length for a debugfs file name */
48 #define DEBUG_DEFAULT_LEVEL 3 /* initial debug level */
50 #define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
52 #define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */
53 /* the entry information */
55 typedef struct __debug_entry debug_entry_t
;
59 typedef struct debug_info
{
60 struct debug_info
* next
;
61 struct debug_info
* prev
;
69 debug_entry_t
*** areas
;
73 struct dentry
* debugfs_root_entry
;
74 struct dentry
* debugfs_entries
[DEBUG_MAX_VIEWS
];
75 struct debug_view
* views
[DEBUG_MAX_VIEWS
];
76 char name
[DEBUG_MAX_NAME_LEN
];
79 typedef int (debug_header_proc_t
) (debug_info_t
* id
,
80 struct debug_view
* view
,
85 typedef int (debug_format_proc_t
) (debug_info_t
* id
,
86 struct debug_view
* view
, char* out_buf
,
88 typedef int (debug_prolog_proc_t
) (debug_info_t
* id
,
89 struct debug_view
* view
,
91 typedef int (debug_input_proc_t
) (debug_info_t
* id
,
92 struct debug_view
* view
,
94 const char __user
*user_buf
,
95 size_t in_buf_size
, loff_t
* offset
);
97 int debug_dflt_header_fn(debug_info_t
* id
, struct debug_view
* view
,
98 int area
, debug_entry_t
* entry
, char* out_buf
);
101 char name
[DEBUG_MAX_NAME_LEN
];
102 debug_prolog_proc_t
* prolog_proc
;
103 debug_header_proc_t
* header_proc
;
104 debug_format_proc_t
* format_proc
;
105 debug_input_proc_t
* input_proc
;
109 extern struct debug_view debug_hex_ascii_view
;
110 extern struct debug_view debug_raw_view
;
111 extern struct debug_view debug_sprintf_view
;
113 /* do NOT use the _common functions */
115 debug_entry_t
* debug_event_common(debug_info_t
* id
, int level
,
116 const void* data
, int length
);
118 debug_entry_t
* debug_exception_common(debug_info_t
* id
, int level
,
119 const void* data
, int length
);
121 /* Debug Feature API: */
123 debug_info_t
* debug_register(char* name
, int pages
, int nr_areas
,
126 void debug_unregister(debug_info_t
* id
);
128 void debug_set_level(debug_info_t
* id
, int new_level
);
130 void debug_stop_all(void);
132 extern inline debug_entry_t
*
133 debug_event(debug_info_t
* id
, int level
, void* data
, int length
)
135 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
137 return debug_event_common(id
,level
,data
,length
);
140 extern inline debug_entry_t
*
141 debug_int_event(debug_info_t
* id
, int level
, unsigned int tag
)
144 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
146 return debug_event_common(id
,level
,&t
,sizeof(unsigned int));
149 extern inline debug_entry_t
*
150 debug_long_event (debug_info_t
* id
, int level
, unsigned long tag
)
153 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
155 return debug_event_common(id
,level
,&t
,sizeof(unsigned long));
158 extern inline debug_entry_t
*
159 debug_text_event(debug_info_t
* id
, int level
, const char* txt
)
161 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
163 return debug_event_common(id
,level
,txt
,strlen(txt
));
166 extern debug_entry_t
*
167 debug_sprintf_event(debug_info_t
* id
,int level
,char *string
,...)
168 __attribute__ ((format(printf
, 3, 4)));
171 extern inline debug_entry_t
*
172 debug_exception(debug_info_t
* id
, int level
, void* data
, int length
)
174 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
176 return debug_exception_common(id
,level
,data
,length
);
179 extern inline debug_entry_t
*
180 debug_int_exception(debug_info_t
* id
, int level
, unsigned int tag
)
183 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
185 return debug_exception_common(id
,level
,&t
,sizeof(unsigned int));
188 extern inline debug_entry_t
*
189 debug_long_exception (debug_info_t
* id
, int level
, unsigned long tag
)
192 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
194 return debug_exception_common(id
,level
,&t
,sizeof(unsigned long));
197 extern inline debug_entry_t
*
198 debug_text_exception(debug_info_t
* id
, int level
, const char* txt
)
200 if ((!id
) || (level
> id
->level
) || (id
->pages_per_area
== 0))
202 return debug_exception_common(id
,level
,txt
,strlen(txt
));
206 extern debug_entry_t
*
207 debug_sprintf_exception(debug_info_t
* id
,int level
,char *string
,...)
208 __attribute__ ((format(printf
, 3, 4)));
210 int debug_register_view(debug_info_t
* id
, struct debug_view
* view
);
211 int debug_unregister_view(debug_info_t
* id
, struct debug_view
* view
);
214 define the debug levels:
215 - 0 No debugging output to console or syslog
216 - 1 Log internal errors to syslog, ignore check conditions
217 - 2 Log internal errors and check conditions to syslog
218 - 3 Log internal errors to console, log check conditions to syslog
219 - 4 Log internal errors and check conditions to console
220 - 5 panic on internal errors, log check conditions to console
221 - 6 panic on both, internal errors and check conditions
225 #define DEBUG_LEVEL 4
228 #define INTERNAL_ERRMSG(x,y...) "E" __FILE__ "%d: " x, __LINE__, y
229 #define INTERNAL_WRNMSG(x,y...) "W" __FILE__ "%d: " x, __LINE__, y
230 #define INTERNAL_INFMSG(x,y...) "I" __FILE__ "%d: " x, __LINE__, y
231 #define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y
234 #define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
235 #define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )
236 #define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )
237 #define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )
238 #define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )
240 #define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
241 #define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
242 #define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
243 #define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
244 #define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
245 #endif /* DASD_DEBUG */
250 #define kmalloc(x...) (PRINT_INFO(" kmalloc %p\n",b=kmalloc(x)),b)
251 #define kfree(x) PRINT_INFO(" kfree %p\n",x);kfree(x)
252 #define get_zeroed_page(x...) (PRINT_INFO(" gfp %p\n",b=get_zeroed_page(x)),b)
253 #define __get_free_pages(x...) (PRINT_INFO(" gfps %p\n",b=__get_free_pages(x)),b)
254 #endif /* DEBUG_MALLOC */
256 #endif /* __KERNEL__ */