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move stringify macro to common include

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We need to stringify macros arguments in various places in the code,
avoid duplicating this definition.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=none
TEST=make buildall

Change-Id: I03530c06139fad4c60711d041239b396d9ed321e
Reviewed-on: https://chromium-review.googlesource.com/201576
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin
2014-05-23 11:02:20 -07:00
committed by chrome-internal-fetch
parent 8c89bcff4d
commit 56e0e67abe
1 changed files with 9 additions and 0 deletions
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9
include/common.h
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@@ -27,6 +27,15 @@
#define CONCAT3(w, x, y) CONCAT_STAGE_1(w, x, y, )
#define CONCAT4(w, x, y, z) CONCAT_STAGE_1(w, x, y, z)
/*
* Macros to turn the argument into a string constant.
*
* Compared to directly using the preprocessor # operator, this 2-stage macro
* is safe with regards to using nested macros and defined arguments.
*/
#define STRINGIFY0(name) #name
#define STRINGIFY(name) STRINGIFY0(name)
/* Macros to access registers */
#define REG32(addr) (*(volatile uint32_t *)(addr))
#define REG16(addr) (*(volatile uint16_t *)(addr))