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| -rw-r--r-- | include/common.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h index 5f236a1f35..cddcde31fa 100644 --- a/include/common.h +++ b/include/common.h @@ -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)) |