[PATCH] s390: debug feature changes
This patch changes the memory allocation method for the s390 debug feature. Trace buffers had been allocated using the get_free_pages() function before. Therefore it was not possible to get big memory areas in a running system due to memory fragmentation. Now the trace buffers are subdivided into several subbuffers with pagesize. Therefore it is now possible to allocate more memory for the trace buffers and more trace records can be written. In addition to that, dynamic specification of the size of the trace buffers is implemented. It is now possible to change the size of a trace buffer using a new debugfs file instance. When writing a number into this file, the trace buffer size is changed to 'number * pagesize'. In the past all the traces could be obtained from userspace by accessing files in the "proc" filesystem. Now with debugfs we have a new filesystem which should be used for debugging purposes. This patch moves the debug feature from procfs to debugfs. Since the interface of debug_register() changed, all device drivers, which use the debug feature had to be adjusted. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael Holzheu
Linus Torvalds
parent
6b979de395
commit
66a464dbc8
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@ -12,8 +12,8 @@ where log records can be stored efficiently in memory, where each component
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One purpose of this is to inspect the debug logs after a production system crash
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in order to analyze the reason for the crash.
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If the system still runs but only a subcomponent which uses dbf failes,
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it is possible to look at the debug logs on a live system via the Linux proc
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filesystem.
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it is possible to look at the debug logs on a live system via the Linux
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debugfs filesystem.
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The debug feature may also very useful for kernel and driver development.
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Design:
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@ -52,16 +52,18 @@ Each debug entry contains the following data:
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- Flag, if entry is an exception or not
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The debug logs can be inspected in a live system through entries in
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the proc-filesystem. Under the path /proc/s390dbf there is
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the debugfs-filesystem. Under the toplevel directory "s390dbf" there is
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a directory for each registered component, which is named like the
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corresponding component.
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corresponding component. The debugfs normally should be mounted to
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/sys/kernel/debug therefore the debug feature can be accessed unter
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/sys/kernel/debug/s390dbf.
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The content of the directories are files which represent different views
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to the debug log. Each component can decide which views should be
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used through registering them with the function debug_register_view().
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Predefined views for hex/ascii, sprintf and raw binary data are provided.
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It is also possible to define other views. The content of
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a view can be inspected simply by reading the corresponding proc file.
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a view can be inspected simply by reading the corresponding debugfs file.
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All debug logs have an an actual debug level (range from 0 to 6).
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The default level is 3. Event and Exception functions have a 'level'
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@ -69,14 +71,14 @@ parameter. Only debug entries with a level that is lower or equal
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than the actual level are written to the log. This means, when
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writing events, high priority log entries should have a low level
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value whereas low priority entries should have a high one.
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The actual debug level can be changed with the help of the proc-filesystem
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through writing a number string "x" to the 'level' proc file which is
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The actual debug level can be changed with the help of the debugfs-filesystem
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through writing a number string "x" to the 'level' debugfs file which is
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provided for every debug log. Debugging can be switched off completely
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by using "-" on the 'level' proc file.
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by using "-" on the 'level' debugfs file.
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Example:
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> echo "-" > /proc/s390dbf/dasd/level
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> echo "-" > /sys/kernel/debug/s390dbf/dasd/level
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It is also possible to deactivate the debug feature globally for every
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debug log. You can change the behavior using 2 sysctl parameters in
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@ -99,11 +101,11 @@ Kernel Interfaces:
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------------------
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----------------------------------------------------------------------------
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debug_info_t *debug_register(char *name, int pages_index, int nr_areas,
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debug_info_t *debug_register(char *name, int pages, int nr_areas,
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int buf_size);
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Parameter: name: Name of debug log (e.g. used for proc entry)
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pages_index: 2^pages_index pages will be allocated per area
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Parameter: name: Name of debug log (e.g. used for debugfs entry)
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pages: number of pages, which will be allocated per area
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nr_areas: number of debug areas
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buf_size: size of data area in each debug entry
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@ -134,7 +136,7 @@ Return Value: none
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Description: Sets new actual debug level if new_level is valid.
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---------------------------------------------------------------------------
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+void debug_stop_all(void);
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void debug_stop_all(void);
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Parameter: none
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@ -270,7 +272,7 @@ Parameter: id: handle for debug log
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Return Value: 0 : ok
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< 0: Error
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Description: registers new debug view and creates proc dir entry
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Description: registers new debug view and creates debugfs dir entry
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---------------------------------------------------------------------------
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int debug_unregister_view (debug_info_t * id, struct debug_view *view);
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@ -281,7 +283,7 @@ Parameter: id: handle for debug log
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Return Value: 0 : ok
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< 0: Error
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Description: unregisters debug view and removes proc dir entry
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Description: unregisters debug view and removes debugfs dir entry
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@ -308,7 +310,7 @@ static int init(void)
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{
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/* register 4 debug areas with one page each and 4 byte data field */
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debug_info = debug_register ("test", 0, 4, 4 );
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debug_info = debug_register ("test", 1, 4, 4 );
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debug_register_view(debug_info,&debug_hex_ascii_view);
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debug_register_view(debug_info,&debug_raw_view);
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@ -343,7 +345,7 @@ static int init(void)
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/* register 4 debug areas with one page each and data field for */
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/* format string pointer + 2 varargs (= 3 * sizeof(long)) */
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debug_info = debug_register ("test", 0, 4, sizeof(long) * 3);
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debug_info = debug_register ("test", 1, 4, sizeof(long) * 3);
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debug_register_view(debug_info,&debug_sprintf_view);
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debug_sprintf_event(debug_info, 2 , "first event in %s:%i\n",__FILE__,__LINE__);
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@ -362,16 +364,16 @@ module_exit(cleanup);
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ProcFS Interface
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Debugfs Interface
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----------------
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Views to the debug logs can be investigated through reading the corresponding
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proc-files:
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debugfs-files:
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Example:
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> ls /proc/s390dbf/dasd
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flush hex_ascii level raw
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> cat /proc/s390dbf/dasd/hex_ascii | sort +1
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> ls /sys/kernel/debug/s390dbf/dasd
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flush hex_ascii level pages raw
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> cat /sys/kernel/debug/s390dbf/dasd/hex_ascii | sort +1
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00 00974733272:680099 2 - 02 0006ad7e 07 ea 4a 90 | ....
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00 00974733272:682210 2 - 02 0006ade6 46 52 45 45 | FREE
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00 00974733272:682213 2 - 02 0006adf6 07 ea 4a 90 | ....
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@ -391,25 +393,36 @@ Changing the debug level
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Example:
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> cat /proc/s390dbf/dasd/level
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> cat /sys/kernel/debug/s390dbf/dasd/level
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3
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> echo "5" > /proc/s390dbf/dasd/level
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> cat /proc/s390dbf/dasd/level
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> echo "5" > /sys/kernel/debug/s390dbf/dasd/level
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> cat /sys/kernel/debug/s390dbf/dasd/level
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5
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Flushing debug areas
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--------------------
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Debug areas can be flushed with piping the number of the desired
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area (0...n) to the proc file "flush". When using "-" all debug areas
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area (0...n) to the debugfs file "flush". When using "-" all debug areas
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are flushed.
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Examples:
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1. Flush debug area 0:
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> echo "0" > /proc/s390dbf/dasd/flush
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> echo "0" > /sys/kernel/debug/s390dbf/dasd/flush
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2. Flush all debug areas:
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> echo "-" > /proc/s390dbf/dasd/flush
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> echo "-" > /sys/kernel/debug/s390dbf/dasd/flush
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Changing the size of debug areas
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------------------------------------
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It is possible the change the size of debug areas through piping
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the number of pages to the debugfs file "pages". The resize request will
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also flush the debug areas.
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Example:
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Define 4 pages for the debug areas of debug feature "dasd":
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> echo "4" > /sys/kernel/debug/s390dbf/dasd/pages
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Stooping the debug feature
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--------------------------
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@ -491,7 +504,7 @@ Defining views
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--------------
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Views are specified with the 'debug_view' structure. There are defined
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callback functions which are used for reading and writing the proc files:
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callback functions which are used for reading and writing the debugfs files:
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struct debug_view {
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char name[DEBUG_MAX_PROCF_LEN];
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@ -525,7 +538,7 @@ typedef int (debug_input_proc_t) (debug_info_t* id,
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The "private_data" member can be used as pointer to view specific data.
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It is not used by the debug feature itself.
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The output when reading a debug-proc file is structured like this:
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The output when reading a debugfs file is structured like this:
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"prolog_proc output"
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@ -534,13 +547,13 @@ The output when reading a debug-proc file is structured like this:
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"header_proc output 3" "format_proc output 3"
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...
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When a view is read from the proc fs, the Debug Feature calls the
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When a view is read from the debugfs, the Debug Feature calls the
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'prolog_proc' once for writing the prolog.
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Then 'header_proc' and 'format_proc' are called for each
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existing debug entry.
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The input_proc can be used to implement functionality when it is written to
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the view (e.g. like with 'echo "0" > /proc/s390dbf/dasd/level).
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the view (e.g. like with 'echo "0" > /sys/kernel/debug/s390dbf/dasd/level).
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For header_proc there can be used the default function
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debug_dflt_header_fn() which is defined in in debug.h.
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@ -602,7 +615,7 @@ debug_info = debug_register ("test", 0, 4, 4 ));
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debug_register_view(debug_info, &debug_test_view);
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for(i = 0; i < 10; i ++) debug_int_event(debug_info, 1, i);
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> cat /proc/s390dbf/test/myview
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> cat /sys/kernel/debug/s390dbf/test/myview
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00 00964419734:611402 1 - 00 88042ca This error...........
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00 00964419734:611405 1 - 00 88042ca That error...........
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00 00964419734:611408 1 - 00 88042ca Problem..............
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File diff suppressed because it is too large
Load Diff
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@ -176,7 +176,7 @@ dasd_state_known_to_basic(struct dasd_device * device)
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return rc;
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/* register 'device' debug area, used for all DBF_DEV_XXX calls */
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device->debug_area = debug_register(device->cdev->dev.bus_id, 0, 2,
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device->debug_area = debug_register(device->cdev->dev.bus_id, 1, 2,
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8 * sizeof (long));
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debug_register_view(device->debug_area, &debug_sprintf_view);
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debug_set_level(device->debug_area, DBF_EMERG);
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@ -1981,7 +1981,7 @@ dasd_init(void)
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init_waitqueue_head(&dasd_init_waitq);
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/* register 'common' DASD debug area, used for all DBF_XXX calls */
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dasd_debug_area = debug_register("dasd", 0, 2, 8 * sizeof (long));
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dasd_debug_area = debug_register("dasd", 1, 2, 8 * sizeof (long));
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if (dasd_debug_area == NULL) {
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rc = -ENOMEM;
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goto failed;
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@ -9,13 +9,14 @@
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*
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* /proc interface for the dasd driver.
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*
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* $Revision: 1.31 $
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* $Revision: 1.32 $
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*/
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#include <linux/config.h>
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#include <linux/ctype.h>
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#include <linux/seq_file.h>
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#include <linux/vmalloc.h>
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#include <linux/proc_fs.h>
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#include <asm/debug.h>
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#include <asm/uaccess.h>
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@ -1351,13 +1351,13 @@ tape_34xx_init (void)
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{
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int rc;
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TAPE_DBF_AREA = debug_register ( "tape_34xx", 1, 2, 4*sizeof(long));
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TAPE_DBF_AREA = debug_register ( "tape_34xx", 2, 2, 4*sizeof(long));
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debug_register_view(TAPE_DBF_AREA, &debug_sprintf_view);
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#ifdef DBF_LIKE_HELL
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debug_set_level(TAPE_DBF_AREA, 6);
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#endif
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DBF_EVENT(3, "34xx init: $Revision: 1.21 $\n");
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DBF_EVENT(3, "34xx init: $Revision: 1.23 $\n");
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/* Register driver for 3480/3490 tapes. */
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rc = ccw_driver_register(&tape_34xx_driver);
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if (rc)
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@ -1378,7 +1378,7 @@ tape_34xx_exit(void)
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MODULE_DEVICE_TABLE(ccw, tape_34xx_ids);
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MODULE_AUTHOR("(C) 2001-2002 IBM Deutschland Entwicklung GmbH");
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MODULE_DESCRIPTION("Linux on zSeries channel attached 3480 tape "
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"device driver ($Revision: 1.21 $)");
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"device driver ($Revision: 1.23 $)");
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MODULE_LICENSE("GPL");
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module_init(tape_34xx_init);
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@ -1186,7 +1186,7 @@ tape_mtop(struct tape_device *device, int mt_op, int mt_count)
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static int
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tape_init (void)
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{
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TAPE_DBF_AREA = debug_register ( "tape", 1, 2, 4*sizeof(long));
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TAPE_DBF_AREA = debug_register ( "tape", 2, 2, 4*sizeof(long));
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debug_register_view(TAPE_DBF_AREA, &debug_sprintf_view);
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#ifdef DBF_LIKE_HELL
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debug_set_level(TAPE_DBF_AREA, 6);
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@ -15,6 +15,7 @@
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#include <linux/module.h>
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#include <linux/vmalloc.h>
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#include <linux/seq_file.h>
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#include <linux/proc_fs.h>
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#define TAPE_DBF_AREA tape_core_dbf
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@ -203,7 +203,7 @@ static int __init vmcp_init(void)
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else
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printk(KERN_WARNING
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"z/VM CP interface not loaded. Could not register misc device.\n");
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vmcp_debug = debug_register("vmcp", 0, 1, 240);
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vmcp_debug = debug_register("vmcp", 1, 1, 240);
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debug_register_view(vmcp_debug, &debug_hex_ascii_view);
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return ret;
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}
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@ -1,7 +1,7 @@
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/*
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* drivers/s390/cio/cio.c
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* S/390 common I/O routines -- low level i/o calls
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* $Revision: 1.133 $
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* $Revision: 1.134 $
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*
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* Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH,
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* IBM Corporation
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@ -63,17 +63,17 @@ __setup ("cio_msg=", cio_setup);
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static int __init
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cio_debug_init (void)
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{
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cio_debug_msg_id = debug_register ("cio_msg", 4, 4, 16*sizeof (long));
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cio_debug_msg_id = debug_register ("cio_msg", 16, 4, 16*sizeof (long));
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if (!cio_debug_msg_id)
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goto out_unregister;
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debug_register_view (cio_debug_msg_id, &debug_sprintf_view);
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debug_set_level (cio_debug_msg_id, 2);
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cio_debug_trace_id = debug_register ("cio_trace", 4, 4, 8);
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cio_debug_trace_id = debug_register ("cio_trace", 16, 4, 8);
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if (!cio_debug_trace_id)
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goto out_unregister;
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debug_register_view (cio_debug_trace_id, &debug_hex_ascii_view);
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debug_set_level (cio_debug_trace_id, 2);
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cio_debug_crw_id = debug_register ("cio_crw", 2, 4, 16*sizeof (long));
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cio_debug_crw_id = debug_register ("cio_crw", 4, 4, 16*sizeof (long));
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if (!cio_debug_crw_id)
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goto out_unregister;
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debug_register_view (cio_debug_crw_id, &debug_sprintf_view);
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@ -56,7 +56,7 @@
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#include "ioasm.h"
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#include "chsc.h"
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#define VERSION_QDIO_C "$Revision: 1.98 $"
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#define VERSION_QDIO_C "$Revision: 1.101 $"
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/****************** MODULE PARAMETER VARIABLES ********************/
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MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
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@ -3342,7 +3342,7 @@ static int
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qdio_register_dbf_views(void)
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{
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qdio_dbf_setup=debug_register(QDIO_DBF_SETUP_NAME,
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QDIO_DBF_SETUP_INDEX,
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QDIO_DBF_SETUP_PAGES,
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QDIO_DBF_SETUP_NR_AREAS,
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QDIO_DBF_SETUP_LEN);
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if (!qdio_dbf_setup)
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@ -3351,7 +3351,7 @@ qdio_register_dbf_views(void)
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debug_set_level(qdio_dbf_setup,QDIO_DBF_SETUP_LEVEL);
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qdio_dbf_sbal=debug_register(QDIO_DBF_SBAL_NAME,
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QDIO_DBF_SBAL_INDEX,
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QDIO_DBF_SBAL_PAGES,
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QDIO_DBF_SBAL_NR_AREAS,
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QDIO_DBF_SBAL_LEN);
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if (!qdio_dbf_sbal)
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@ -3361,7 +3361,7 @@ qdio_register_dbf_views(void)
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debug_set_level(qdio_dbf_sbal,QDIO_DBF_SBAL_LEVEL);
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qdio_dbf_sense=debug_register(QDIO_DBF_SENSE_NAME,
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QDIO_DBF_SENSE_INDEX,
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QDIO_DBF_SENSE_PAGES,
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QDIO_DBF_SENSE_NR_AREAS,
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QDIO_DBF_SENSE_LEN);
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if (!qdio_dbf_sense)
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@ -3371,7 +3371,7 @@ qdio_register_dbf_views(void)
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debug_set_level(qdio_dbf_sense,QDIO_DBF_SENSE_LEVEL);
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|
||||
qdio_dbf_trace=debug_register(QDIO_DBF_TRACE_NAME,
|
||||
QDIO_DBF_TRACE_INDEX,
|
||||
QDIO_DBF_TRACE_PAGES,
|
||||
QDIO_DBF_TRACE_NR_AREAS,
|
||||
QDIO_DBF_TRACE_LEN);
|
||||
if (!qdio_dbf_trace)
|
||||
|
|
@ -3382,7 +3382,7 @@ qdio_register_dbf_views(void)
|
|||
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
qdio_dbf_slsb_out=debug_register(QDIO_DBF_SLSB_OUT_NAME,
|
||||
QDIO_DBF_SLSB_OUT_INDEX,
|
||||
QDIO_DBF_SLSB_OUT_PAGES,
|
||||
QDIO_DBF_SLSB_OUT_NR_AREAS,
|
||||
QDIO_DBF_SLSB_OUT_LEN);
|
||||
if (!qdio_dbf_slsb_out)
|
||||
|
|
@ -3391,7 +3391,7 @@ qdio_register_dbf_views(void)
|
|||
debug_set_level(qdio_dbf_slsb_out,QDIO_DBF_SLSB_OUT_LEVEL);
|
||||
|
||||
qdio_dbf_slsb_in=debug_register(QDIO_DBF_SLSB_IN_NAME,
|
||||
QDIO_DBF_SLSB_IN_INDEX,
|
||||
QDIO_DBF_SLSB_IN_PAGES,
|
||||
QDIO_DBF_SLSB_IN_NR_AREAS,
|
||||
QDIO_DBF_SLSB_IN_LEN);
|
||||
if (!qdio_dbf_slsb_in)
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
#include <asm/page.h>
|
||||
|
||||
#define VERSION_CIO_QDIO_H "$Revision: 1.32 $"
|
||||
#define VERSION_CIO_QDIO_H "$Revision: 1.33 $"
|
||||
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
#define QDIO_VERBOSE_LEVEL 9
|
||||
|
|
@ -132,7 +132,7 @@ enum qdio_irq_states {
|
|||
|
||||
#define QDIO_DBF_SETUP_NAME "qdio_setup"
|
||||
#define QDIO_DBF_SETUP_LEN 8
|
||||
#define QDIO_DBF_SETUP_INDEX 2
|
||||
#define QDIO_DBF_SETUP_PAGES 4
|
||||
#define QDIO_DBF_SETUP_NR_AREAS 1
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
#define QDIO_DBF_SETUP_LEVEL 6
|
||||
|
|
@ -142,7 +142,7 @@ enum qdio_irq_states {
|
|||
|
||||
#define QDIO_DBF_SBAL_NAME "qdio_labs" /* sbal */
|
||||
#define QDIO_DBF_SBAL_LEN 256
|
||||
#define QDIO_DBF_SBAL_INDEX 2
|
||||
#define QDIO_DBF_SBAL_PAGES 4
|
||||
#define QDIO_DBF_SBAL_NR_AREAS 2
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
#define QDIO_DBF_SBAL_LEVEL 6
|
||||
|
|
@ -154,16 +154,16 @@ enum qdio_irq_states {
|
|||
#define QDIO_DBF_TRACE_LEN 8
|
||||
#define QDIO_DBF_TRACE_NR_AREAS 2
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
#define QDIO_DBF_TRACE_INDEX 4
|
||||
#define QDIO_DBF_TRACE_PAGES 16
|
||||
#define QDIO_DBF_TRACE_LEVEL 4 /* -------- could be even more verbose here */
|
||||
#else /* CONFIG_QDIO_DEBUG */
|
||||
#define QDIO_DBF_TRACE_INDEX 2
|
||||
#define QDIO_DBF_TRACE_PAGES 4
|
||||
#define QDIO_DBF_TRACE_LEVEL 2
|
||||
#endif /* CONFIG_QDIO_DEBUG */
|
||||
|
||||
#define QDIO_DBF_SENSE_NAME "qdio_sense"
|
||||
#define QDIO_DBF_SENSE_LEN 64
|
||||
#define QDIO_DBF_SENSE_INDEX 1
|
||||
#define QDIO_DBF_SENSE_PAGES 2
|
||||
#define QDIO_DBF_SENSE_NR_AREAS 1
|
||||
#ifdef CONFIG_QDIO_DEBUG
|
||||
#define QDIO_DBF_SENSE_LEVEL 6
|
||||
|
|
@ -176,13 +176,13 @@ enum qdio_irq_states {
|
|||
|
||||
#define QDIO_DBF_SLSB_OUT_NAME "qdio_slsb_out"
|
||||
#define QDIO_DBF_SLSB_OUT_LEN QDIO_MAX_BUFFERS_PER_Q
|
||||
#define QDIO_DBF_SLSB_OUT_INDEX 8
|
||||
#define QDIO_DBF_SLSB_OUT_PAGES 256
|
||||
#define QDIO_DBF_SLSB_OUT_NR_AREAS 1
|
||||
#define QDIO_DBF_SLSB_OUT_LEVEL 6
|
||||
|
||||
#define QDIO_DBF_SLSB_IN_NAME "qdio_slsb_in"
|
||||
#define QDIO_DBF_SLSB_IN_LEN QDIO_MAX_BUFFERS_PER_Q
|
||||
#define QDIO_DBF_SLSB_IN_INDEX 8
|
||||
#define QDIO_DBF_SLSB_IN_PAGES 256
|
||||
#define QDIO_DBF_SLSB_IN_NR_AREAS 1
|
||||
#define QDIO_DBF_SLSB_IN_LEVEL 6
|
||||
#endif /* CONFIG_QDIO_DEBUG */
|
||||
|
|
|
|||
|
|
@ -146,8 +146,8 @@ claw_unregister_debug_facility(void)
|
|||
static int
|
||||
claw_register_debug_facility(void)
|
||||
{
|
||||
claw_dbf_setup = debug_register("claw_setup", 1, 1, 8);
|
||||
claw_dbf_trace = debug_register("claw_trace", 1, 2, 8);
|
||||
claw_dbf_setup = debug_register("claw_setup", 2, 1, 8);
|
||||
claw_dbf_trace = debug_register("claw_trace", 2, 2, 8);
|
||||
if (claw_dbf_setup == NULL || claw_dbf_trace == NULL) {
|
||||
printk(KERN_WARNING "Not enough memory for debug facility.\n");
|
||||
claw_unregister_debug_facility();
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
*
|
||||
* linux/drivers/s390/net/ctcdbug.c ($Revision: 1.4 $)
|
||||
* linux/drivers/s390/net/ctcdbug.c ($Revision: 1.6 $)
|
||||
*
|
||||
* CTC / ESCON network driver - s390 dbf exploit.
|
||||
*
|
||||
|
|
@ -9,7 +9,7 @@
|
|||
* Author(s): Original Code written by
|
||||
* Peter Tiedemann (ptiedem@de.ibm.com)
|
||||
*
|
||||
* $Revision: 1.4 $ $Date: 2004/08/04 10:11:59 $
|
||||
* $Revision: 1.6 $ $Date: 2005/05/11 08:10:17 $
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -51,15 +51,15 @@ int
|
|||
ctc_register_dbf_views(void)
|
||||
{
|
||||
ctc_dbf_setup = debug_register(CTC_DBF_SETUP_NAME,
|
||||
CTC_DBF_SETUP_INDEX,
|
||||
CTC_DBF_SETUP_PAGES,
|
||||
CTC_DBF_SETUP_NR_AREAS,
|
||||
CTC_DBF_SETUP_LEN);
|
||||
ctc_dbf_data = debug_register(CTC_DBF_DATA_NAME,
|
||||
CTC_DBF_DATA_INDEX,
|
||||
CTC_DBF_DATA_PAGES,
|
||||
CTC_DBF_DATA_NR_AREAS,
|
||||
CTC_DBF_DATA_LEN);
|
||||
ctc_dbf_trace = debug_register(CTC_DBF_TRACE_NAME,
|
||||
CTC_DBF_TRACE_INDEX,
|
||||
CTC_DBF_TRACE_PAGES,
|
||||
CTC_DBF_TRACE_NR_AREAS,
|
||||
CTC_DBF_TRACE_LEN);
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
*
|
||||
* linux/drivers/s390/net/ctcdbug.h ($Revision: 1.5 $)
|
||||
* linux/drivers/s390/net/ctcdbug.h ($Revision: 1.6 $)
|
||||
*
|
||||
* CTC / ESCON network driver - s390 dbf exploit.
|
||||
*
|
||||
|
|
@ -9,7 +9,7 @@
|
|||
* Author(s): Original Code written by
|
||||
* Peter Tiedemann (ptiedem@de.ibm.com)
|
||||
*
|
||||
* $Revision: 1.5 $ $Date: 2005/02/27 19:46:44 $
|
||||
* $Revision: 1.6 $ $Date: 2005/05/11 08:10:17 $
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -35,19 +35,19 @@
|
|||
*/
|
||||
#define CTC_DBF_SETUP_NAME "ctc_setup"
|
||||
#define CTC_DBF_SETUP_LEN 16
|
||||
#define CTC_DBF_SETUP_INDEX 3
|
||||
#define CTC_DBF_SETUP_PAGES 8
|
||||
#define CTC_DBF_SETUP_NR_AREAS 1
|
||||
#define CTC_DBF_SETUP_LEVEL 3
|
||||
|
||||
#define CTC_DBF_DATA_NAME "ctc_data"
|
||||
#define CTC_DBF_DATA_LEN 128
|
||||
#define CTC_DBF_DATA_INDEX 3
|
||||
#define CTC_DBF_DATA_PAGES 8
|
||||
#define CTC_DBF_DATA_NR_AREAS 1
|
||||
#define CTC_DBF_DATA_LEVEL 3
|
||||
|
||||
#define CTC_DBF_TRACE_NAME "ctc_trace"
|
||||
#define CTC_DBF_TRACE_LEN 16
|
||||
#define CTC_DBF_TRACE_INDEX 2
|
||||
#define CTC_DBF_TRACE_PAGES 4
|
||||
#define CTC_DBF_TRACE_NR_AREAS 2
|
||||
#define CTC_DBF_TRACE_LEVEL 3
|
||||
|
||||
|
|
|
|||
|
|
@ -37,19 +37,19 @@
|
|||
*/
|
||||
#define IUCV_DBF_SETUP_NAME "iucv_setup"
|
||||
#define IUCV_DBF_SETUP_LEN 32
|
||||
#define IUCV_DBF_SETUP_INDEX 1
|
||||
#define IUCV_DBF_SETUP_PAGES 2
|
||||
#define IUCV_DBF_SETUP_NR_AREAS 1
|
||||
#define IUCV_DBF_SETUP_LEVEL 3
|
||||
|
||||
#define IUCV_DBF_DATA_NAME "iucv_data"
|
||||
#define IUCV_DBF_DATA_LEN 128
|
||||
#define IUCV_DBF_DATA_INDEX 1
|
||||
#define IUCV_DBF_DATA_PAGES 2
|
||||
#define IUCV_DBF_DATA_NR_AREAS 1
|
||||
#define IUCV_DBF_DATA_LEVEL 2
|
||||
|
||||
#define IUCV_DBF_TRACE_NAME "iucv_trace"
|
||||
#define IUCV_DBF_TRACE_LEN 16
|
||||
#define IUCV_DBF_TRACE_INDEX 2
|
||||
#define IUCV_DBF_TRACE_PAGES 4
|
||||
#define IUCV_DBF_TRACE_NR_AREAS 1
|
||||
#define IUCV_DBF_TRACE_LEVEL 3
|
||||
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@
|
|||
* Frank Pavlic (pavlic@de.ibm.com) and
|
||||
* Martin Schwidefsky <schwidefsky@de.ibm.com>
|
||||
*
|
||||
* $Revision: 1.98 $ $Date: 2005/04/18 13:41:29 $
|
||||
* $Revision: 1.99 $ $Date: 2005/05/11 08:10:17 $
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -59,7 +59,7 @@
|
|||
/**
|
||||
* initialization string for output
|
||||
*/
|
||||
#define VERSION_LCS_C "$Revision: 1.98 $"
|
||||
#define VERSION_LCS_C "$Revision: 1.99 $"
|
||||
|
||||
static char version[] __initdata = "LCS driver ("VERSION_LCS_C "/" VERSION_LCS_H ")";
|
||||
static char debug_buffer[255];
|
||||
|
|
@ -93,8 +93,8 @@ lcs_unregister_debug_facility(void)
|
|||
static int
|
||||
lcs_register_debug_facility(void)
|
||||
{
|
||||
lcs_dbf_setup = debug_register("lcs_setup", 1, 1, 8);
|
||||
lcs_dbf_trace = debug_register("lcs_trace", 1, 2, 8);
|
||||
lcs_dbf_setup = debug_register("lcs_setup", 2, 1, 8);
|
||||
lcs_dbf_trace = debug_register("lcs_trace", 2, 2, 8);
|
||||
if (lcs_dbf_setup == NULL || lcs_dbf_trace == NULL) {
|
||||
PRINT_ERR("Not enough memory for debug facility.\n");
|
||||
lcs_unregister_debug_facility();
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* $Id: netiucv.c,v 1.63 2004/07/27 13:36:05 mschwide Exp $
|
||||
* $Id: netiucv.c,v 1.66 2005/05/11 08:10:17 holzheu Exp $
|
||||
*
|
||||
* IUCV network driver
|
||||
*
|
||||
|
|
@ -30,7 +30,7 @@
|
|||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* RELEASE-TAG: IUCV network driver $Revision: 1.63 $
|
||||
* RELEASE-TAG: IUCV network driver $Revision: 1.66 $
|
||||
*
|
||||
*/
|
||||
|
||||
|
|
@ -391,15 +391,15 @@ static int
|
|||
iucv_register_dbf_views(void)
|
||||
{
|
||||
iucv_dbf_setup = debug_register(IUCV_DBF_SETUP_NAME,
|
||||
IUCV_DBF_SETUP_INDEX,
|
||||
IUCV_DBF_SETUP_PAGES,
|
||||
IUCV_DBF_SETUP_NR_AREAS,
|
||||
IUCV_DBF_SETUP_LEN);
|
||||
iucv_dbf_data = debug_register(IUCV_DBF_DATA_NAME,
|
||||
IUCV_DBF_DATA_INDEX,
|
||||
IUCV_DBF_DATA_PAGES,
|
||||
IUCV_DBF_DATA_NR_AREAS,
|
||||
IUCV_DBF_DATA_LEN);
|
||||
iucv_dbf_trace = debug_register(IUCV_DBF_TRACE_NAME,
|
||||
IUCV_DBF_TRACE_INDEX,
|
||||
IUCV_DBF_TRACE_PAGES,
|
||||
IUCV_DBF_TRACE_NR_AREAS,
|
||||
IUCV_DBF_TRACE_LEN);
|
||||
|
||||
|
|
@ -2076,7 +2076,7 @@ DRIVER_ATTR(remove, 0200, NULL, remove_write);
|
|||
static void
|
||||
netiucv_banner(void)
|
||||
{
|
||||
char vbuf[] = "$Revision: 1.63 $";
|
||||
char vbuf[] = "$Revision: 1.66 $";
|
||||
char *version = vbuf;
|
||||
|
||||
if ((version = strchr(version, ':'))) {
|
||||
|
|
|
|||
|
|
@ -42,44 +42,44 @@
|
|||
*/
|
||||
#define QETH_DBF_SETUP_NAME "qeth_setup"
|
||||
#define QETH_DBF_SETUP_LEN 8
|
||||
#define QETH_DBF_SETUP_INDEX 3
|
||||
#define QETH_DBF_SETUP_PAGES 8
|
||||
#define QETH_DBF_SETUP_NR_AREAS 1
|
||||
#define QETH_DBF_SETUP_LEVEL 5
|
||||
|
||||
#define QETH_DBF_MISC_NAME "qeth_misc"
|
||||
#define QETH_DBF_MISC_LEN 128
|
||||
#define QETH_DBF_MISC_INDEX 1
|
||||
#define QETH_DBF_MISC_PAGES 2
|
||||
#define QETH_DBF_MISC_NR_AREAS 1
|
||||
#define QETH_DBF_MISC_LEVEL 2
|
||||
|
||||
#define QETH_DBF_DATA_NAME "qeth_data"
|
||||
#define QETH_DBF_DATA_LEN 96
|
||||
#define QETH_DBF_DATA_INDEX 3
|
||||
#define QETH_DBF_DATA_PAGES 8
|
||||
#define QETH_DBF_DATA_NR_AREAS 1
|
||||
#define QETH_DBF_DATA_LEVEL 2
|
||||
|
||||
#define QETH_DBF_CONTROL_NAME "qeth_control"
|
||||
#define QETH_DBF_CONTROL_LEN 256
|
||||
#define QETH_DBF_CONTROL_INDEX 3
|
||||
#define QETH_DBF_CONTROL_PAGES 8
|
||||
#define QETH_DBF_CONTROL_NR_AREAS 2
|
||||
#define QETH_DBF_CONTROL_LEVEL 5
|
||||
|
||||
#define QETH_DBF_TRACE_NAME "qeth_trace"
|
||||
#define QETH_DBF_TRACE_LEN 8
|
||||
#define QETH_DBF_TRACE_INDEX 2
|
||||
#define QETH_DBF_TRACE_PAGES 4
|
||||
#define QETH_DBF_TRACE_NR_AREAS 2
|
||||
#define QETH_DBF_TRACE_LEVEL 3
|
||||
extern debug_info_t *qeth_dbf_trace;
|
||||
|
||||
#define QETH_DBF_SENSE_NAME "qeth_sense"
|
||||
#define QETH_DBF_SENSE_LEN 64
|
||||
#define QETH_DBF_SENSE_INDEX 1
|
||||
#define QETH_DBF_SENSE_PAGES 2
|
||||
#define QETH_DBF_SENSE_NR_AREAS 1
|
||||
#define QETH_DBF_SENSE_LEVEL 2
|
||||
|
||||
#define QETH_DBF_QERR_NAME "qeth_qerr"
|
||||
#define QETH_DBF_QERR_LEN 8
|
||||
#define QETH_DBF_QERR_INDEX 1
|
||||
#define QETH_DBF_QERR_PAGES 2
|
||||
#define QETH_DBF_QERR_NR_AREAS 2
|
||||
#define QETH_DBF_QERR_LEVEL 2
|
||||
|
||||
|
|
|
|||
|
|
@ -7639,31 +7639,31 @@ static int
|
|||
qeth_register_dbf_views(void)
|
||||
{
|
||||
qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
|
||||
QETH_DBF_SETUP_INDEX,
|
||||
QETH_DBF_SETUP_PAGES,
|
||||
QETH_DBF_SETUP_NR_AREAS,
|
||||
QETH_DBF_SETUP_LEN);
|
||||
qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
|
||||
QETH_DBF_MISC_INDEX,
|
||||
QETH_DBF_MISC_PAGES,
|
||||
QETH_DBF_MISC_NR_AREAS,
|
||||
QETH_DBF_MISC_LEN);
|
||||
qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
|
||||
QETH_DBF_DATA_INDEX,
|
||||
QETH_DBF_DATA_PAGES,
|
||||
QETH_DBF_DATA_NR_AREAS,
|
||||
QETH_DBF_DATA_LEN);
|
||||
qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
|
||||
QETH_DBF_CONTROL_INDEX,
|
||||
QETH_DBF_CONTROL_PAGES,
|
||||
QETH_DBF_CONTROL_NR_AREAS,
|
||||
QETH_DBF_CONTROL_LEN);
|
||||
qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
|
||||
QETH_DBF_SENSE_INDEX,
|
||||
QETH_DBF_SENSE_PAGES,
|
||||
QETH_DBF_SENSE_NR_AREAS,
|
||||
QETH_DBF_SENSE_LEN);
|
||||
qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
|
||||
QETH_DBF_QERR_INDEX,
|
||||
QETH_DBF_QERR_PAGES,
|
||||
QETH_DBF_QERR_NR_AREAS,
|
||||
QETH_DBF_QERR_LEN);
|
||||
qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
|
||||
QETH_DBF_TRACE_INDEX,
|
||||
QETH_DBF_TRACE_PAGES,
|
||||
QETH_DBF_TRACE_NR_AREAS,
|
||||
QETH_DBF_TRACE_LEN);
|
||||
|
||||
|
|
|
|||
|
|
@ -9,6 +9,8 @@
|
|||
#ifndef DEBUG_H
|
||||
#define DEBUG_H
|
||||
|
||||
#include <linux/config.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/string.h>
|
||||
|
||||
/* Note:
|
||||
|
|
@ -31,19 +33,18 @@ struct __debug_entry{
|
|||
} __attribute__((packed));
|
||||
|
||||
|
||||
#define __DEBUG_FEATURE_VERSION 1 /* version of debug feature */
|
||||
#define __DEBUG_FEATURE_VERSION 2 /* version of debug feature */
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/time.h>
|
||||
#include <linux/proc_fs.h>
|
||||
|
||||
#define DEBUG_MAX_LEVEL 6 /* debug levels range from 0 to 6 */
|
||||
#define DEBUG_OFF_LEVEL -1 /* level where debug is switched off */
|
||||
#define DEBUG_FLUSH_ALL -1 /* parameter to flush all areas */
|
||||
#define DEBUG_MAX_VIEWS 10 /* max number of views in proc fs */
|
||||
#define DEBUG_MAX_PROCF_LEN 64 /* max length for a proc file name */
|
||||
#define DEBUG_MAX_NAME_LEN 64 /* max length for a debugfs file name */
|
||||
#define DEBUG_DEFAULT_LEVEL 3 /* initial debug level */
|
||||
|
||||
#define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
|
||||
|
|
@ -64,16 +65,17 @@ typedef struct debug_info {
|
|||
spinlock_t lock;
|
||||
int level;
|
||||
int nr_areas;
|
||||
int page_order;
|
||||
int pages_per_area;
|
||||
int buf_size;
|
||||
int entry_size;
|
||||
debug_entry_t** areas;
|
||||
debug_entry_t*** areas;
|
||||
int active_area;
|
||||
int *active_entry;
|
||||
struct proc_dir_entry* proc_root_entry;
|
||||
struct proc_dir_entry* proc_entries[DEBUG_MAX_VIEWS];
|
||||
int *active_pages;
|
||||
int *active_entries;
|
||||
struct dentry* debugfs_root_entry;
|
||||
struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
|
||||
struct debug_view* views[DEBUG_MAX_VIEWS];
|
||||
char name[DEBUG_MAX_PROCF_LEN];
|
||||
char name[DEBUG_MAX_NAME_LEN];
|
||||
} debug_info_t;
|
||||
|
||||
typedef int (debug_header_proc_t) (debug_info_t* id,
|
||||
|
|
@ -98,7 +100,7 @@ int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,
|
|||
int area, debug_entry_t* entry, char* out_buf);
|
||||
|
||||
struct debug_view {
|
||||
char name[DEBUG_MAX_PROCF_LEN];
|
||||
char name[DEBUG_MAX_NAME_LEN];
|
||||
debug_prolog_proc_t* prolog_proc;
|
||||
debug_header_proc_t* header_proc;
|
||||
debug_format_proc_t* format_proc;
|
||||
|
|
@ -120,7 +122,7 @@ debug_entry_t* debug_exception_common(debug_info_t* id, int level,
|
|||
|
||||
/* Debug Feature API: */
|
||||
|
||||
debug_info_t* debug_register(char* name, int pages_index, int nr_areas,
|
||||
debug_info_t* debug_register(char* name, int pages, int nr_areas,
|
||||
int buf_size);
|
||||
|
||||
void debug_unregister(debug_info_t* id);
|
||||
|
|
@ -132,7 +134,8 @@ void debug_stop_all(void);
|
|||
extern inline debug_entry_t*
|
||||
debug_event(debug_info_t* id, int level, void* data, int length)
|
||||
{
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_event_common(id,level,data,length);
|
||||
}
|
||||
|
||||
|
|
@ -140,7 +143,8 @@ extern inline debug_entry_t*
|
|||
debug_int_event(debug_info_t* id, int level, unsigned int tag)
|
||||
{
|
||||
unsigned int t=tag;
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_event_common(id,level,&t,sizeof(unsigned int));
|
||||
}
|
||||
|
||||
|
|
@ -148,14 +152,16 @@ extern inline debug_entry_t *
|
|||
debug_long_event (debug_info_t* id, int level, unsigned long tag)
|
||||
{
|
||||
unsigned long t=tag;
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_event_common(id,level,&t,sizeof(unsigned long));
|
||||
}
|
||||
|
||||
extern inline debug_entry_t*
|
||||
debug_text_event(debug_info_t* id, int level, const char* txt)
|
||||
{
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_event_common(id,level,txt,strlen(txt));
|
||||
}
|
||||
|
||||
|
|
@ -167,7 +173,8 @@ debug_sprintf_event(debug_info_t* id,int level,char *string,...)
|
|||
extern inline debug_entry_t*
|
||||
debug_exception(debug_info_t* id, int level, void* data, int length)
|
||||
{
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_exception_common(id,level,data,length);
|
||||
}
|
||||
|
||||
|
|
@ -175,7 +182,8 @@ extern inline debug_entry_t*
|
|||
debug_int_exception(debug_info_t* id, int level, unsigned int tag)
|
||||
{
|
||||
unsigned int t=tag;
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_exception_common(id,level,&t,sizeof(unsigned int));
|
||||
}
|
||||
|
||||
|
|
@ -183,14 +191,16 @@ extern inline debug_entry_t *
|
|||
debug_long_exception (debug_info_t* id, int level, unsigned long tag)
|
||||
{
|
||||
unsigned long t=tag;
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_exception_common(id,level,&t,sizeof(unsigned long));
|
||||
}
|
||||
|
||||
extern inline debug_entry_t*
|
||||
debug_text_exception(debug_info_t* id, int level, const char* txt)
|
||||
{
|
||||
if ((!id) || (level > id->level)) return NULL;
|
||||
if ((!id) || (level > id->level) || (id->pages_per_area == 0))
|
||||
return NULL;
|
||||
return debug_exception_common(id,level,txt,strlen(txt));
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user