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| author | Bart Van Assche <bvanassche@acm.org> | 2011-01-23 17:17:24 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-03 15:39:16 -0800 |
| commit | 8ba6ebf583f12da32036fc0f003ab4043e54692e (patch) | |
| tree | 8fdd980d30fea50722b28fb5d782236174b2d188 /include/linux/dynamic_debug.h | |
| parent | 9b99b7f84ea520d2ecaf816bde247a1ad07e454e (diff) | |
| download | lwn-8ba6ebf583f12da32036fc0f003ab4043e54692e.tar.gz lwn-8ba6ebf583f12da32036fc0f003ab4043e54692e.zip | |
Dynamic debug: Add more flags
Add flags that allow the user to specify via debugfs whether or not the
module name, function name, line number and/or thread ID have to be
included in the printed message.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Greg Banks <gnb@fmeh.org>
Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/dynamic_debug.h')
| -rw-r--r-- | include/linux/dynamic_debug.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index 1c70028f81f9..0c9653f11c18 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -31,6 +31,10 @@ struct _ddebug { * writes commands to <debugfs>/dynamic_debug/control */ #define _DPRINTK_FLAGS_PRINT (1<<0) /* printk() a message using the format */ +#define _DPRINTK_FLAGS_INCL_MODNAME (1<<1) +#define _DPRINTK_FLAGS_INCL_FUNCNAME (1<<2) +#define _DPRINTK_FLAGS_INCL_LINENO (1<<3) +#define _DPRINTK_FLAGS_INCL_TID (1<<4) #define _DPRINTK_FLAGS_DEFAULT 0 unsigned int flags:8; char enabled; @@ -42,6 +46,8 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n, #if defined(CONFIG_DYNAMIC_DEBUG) extern int ddebug_remove_module(const char *mod_name); +extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); #define dynamic_pr_debug(fmt, ...) do { \ static struct _ddebug descriptor \ @@ -50,7 +56,7 @@ extern int ddebug_remove_module(const char *mod_name); { KBUILD_MODNAME, __func__, __FILE__, fmt, __LINE__, \ _DPRINTK_FLAGS_DEFAULT }; \ if (unlikely(descriptor.enabled)) \ - printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ + __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \ } while (0) |