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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>
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For example:
__stringify(__entry->irq, __entry->ret)
will now convert it to:
"REC->irq, REC->ret"
It also still supports single arguments as the old macro did.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <49DC6751.30308@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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When you reverted the stringify changes I sent last time, you missed removing
a comment, which is now grossly wrong. This patch finishes the job.
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various compilers
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This a preparatory patch which allows UML to avoid changing linux/linkage.h.
It restructures linkage.h so that all of the arch-specific stuff is in
asm-*/linkage.h. linux/linkage.h is now arch independent. It should be
functionally unchanged.
Five arches, i386, ia64, sh, m68k, and arm, have non-empty linkage.h files.
The other arch linkage.h files are all empty.
Also, __ALIGN_STR is no longer defined independently of __ALIGN. It is now
derived by stringizing __ALIGN.
Following a suggestion by Keith Owens, stringify.h was generalized to allow
commas in its argument, linkage.h now includes it, and no longer defines its
own stringify macros.
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Make spinlocks etc use subsections of their parent sections instead of
an ELF section of their own - needed for newer binutils when the parent
sector is removed.
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