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Viewing changes to include/linux/dynamic_debug.h

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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include/linux/dynamic_debug.h
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#ifndef _DYNAMIC_DEBUG_H
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#define _DYNAMIC_DEBUG_H
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#include <linux/jump_label.h>
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/* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which
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 * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They
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 * use independent hash functions, to reduce the chance of false positives.
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         * writes commands to <debugfs>/dynamic_debug/control
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         */
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#define _DPRINTK_FLAGS_PRINT   (1<<0)  /* printk() a message using the format */
 
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#define _DPRINTK_FLAGS_INCL_MODNAME     (1<<1)
 
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#define _DPRINTK_FLAGS_INCL_FUNCNAME    (1<<2)
 
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#define _DPRINTK_FLAGS_INCL_LINENO      (1<<3)
 
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#define _DPRINTK_FLAGS_INCL_TID         (1<<4)
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#define _DPRINTK_FLAGS_DEFAULT 0
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        unsigned int flags:8;
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        char enabled;
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#if defined(CONFIG_DYNAMIC_DEBUG)
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extern int ddebug_remove_module(const char *mod_name);
 
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extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
 
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        __attribute__ ((format (printf, 2, 3)));
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#define dynamic_pr_debug(fmt, ...) do {                                 \
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        static struct _ddebug descriptor                                \
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        { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__,            \
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                _DPRINTK_FLAGS_DEFAULT };                               \
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        if (unlikely(descriptor.enabled))                               \
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                printk(KERN_DEBUG pr_fmt(fmt),  ##__VA_ARGS__);         \
 
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                __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \
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        } while (0)
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