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cab9b76821
* Add include/linux/stringify.h from Linux kernel 2.6.12-rc2 (cherry picked from commit1da177e4c3) * Make __stringify support variable argument macros too 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> (cherry picked from commit8f7c2c3731) * Add documentation. * Adjust names in order to satisfy naming convention. * Use __VA_ARGS__ instead a GNU extension as this works with more compilers. Works with the newest versions of ICCAVR, GCC, CLANG and MSCV. C++11 may be required. * Adjust to ETL folder structure. * Change include guard to the one usual in ETL. * Add definition guard for STRINGIFY. --------- Co-authored-by: Linus Torvalds <torvalds@ppc970.osdl.org> Co-authored-by: Zhaolei <zhaolei@cn.fujitsu.com>
21 lines
632 B
C
21 lines
632 B
C
#ifndef ETL_ETL_STRINGIFY_INCLUDED
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#define ETL_ETL_STRINGIFY_INCLUDED
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#ifndef STRINGIFY
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/** Helper macro for STRINGIFY. */
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#define STRINGIFY_1(...) #__VA_ARGS__
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/**
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* Indirect stringification.
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*
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* Doing two levels allows the parameter to be a macro itself.
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* For example, compile with `-DFOO=bar`, `STRINGIFY(FOO)` converts to "bar".
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*
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* \param x will be converted to one string, including the spaces and commas between arguments.
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* For example `STRINGIFY( a , b )` will be expanded to "a , b".
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*/
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#define STRINGIFY(...) STRINGIFY_1(__VA_ARGS__)
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#endif /* STRINGIFY */
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#endif /* ETL_ETL_STRINGIFY_INCLUDED */
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