forked from mirrors/linux
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>
14 lines
395 B
C
14 lines
395 B
C
#ifndef __LINUX_STRINGIFY_H
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#define __LINUX_STRINGIFY_H
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/* Indirect stringification. Doing two levels allows the parameter to be a
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* macro itself. For example, compile with -DFOO=bar, __stringify(FOO)
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* converts to "bar".
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*/
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#define __stringify_1(x...) #x
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#define __stringify(x...) __stringify_1(x)
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#define FILE_LINE __FILE__ ":" __stringify(__LINE__)
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#endif /* !__LINUX_STRINGIFY_H */
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