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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-04-21 14:11:12 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-04-21 14:11:12 +0000 |
| commit | 75792b3d6af243e043e66b1b2f7199229d430ef8 (patch) | |
| tree | 8c0740a9254d7b4b8d635c6734e3fbd30dc6d30e /os/kernel/templates | |
| parent | 3621ac37b0cbab7737d215db0335017561856a10 (diff) | |
| download | ChibiOS-75792b3d6af243e043e66b1b2f7199229d430ef8.tar.gz ChibiOS-75792b3d6af243e043e66b1b2f7199229d430ef8.tar.bz2 ChibiOS-75792b3d6af243e043e66b1b2f7199229d430ef8.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1882 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/kernel/templates')
| -rw-r--r-- | os/kernel/templates/chtypes.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/os/kernel/templates/chtypes.h b/os/kernel/templates/chtypes.h index e54c55100..164ccbe60 100644 --- a/os/kernel/templates/chtypes.h +++ b/os/kernel/templates/chtypes.h @@ -97,6 +97,19 @@ typedef int32_t cnt_t; #define INLINE inline
/**
+ * @brief ROM constant modifier.
+ * @note This is required because some compilers require a custom keyword,
+ * usually this macro is just set to "const" for the GCC compiler.
+ * @note This macro is not used to place constants in different address
+ * spaces (like AVR requires as example) because it is assumed that
+ * a pointer to a ROMCONST constant is compatible with a pointer
+ * to a normal variable. It is just like the "const" keyword but
+ * requires that the constant is placed in ROM if the architecture
+ * supports it. + */
+#define ROMCONST const
+
+/**
* @brief Packed structure modifier (within).
*/
#define PACK_STRUCT_STRUCT __attribute__((packed))
|