kconfig: add a function to get the CONFIG_ prefix

Currently, we get the CONFIG_ prefix via the CONFIG_ macro, which means
the CONFIG_ prefix is hard-coded at compile time. This goes against
having a run-time defined CONFIG_ prefix.

Add a function that returns the CONFIG_ prefix to use (but keep the
current hard-coded behavior, to be changed in a later patch).

To avoid touching all the code that uses the CONFIG_ macro, we just
undef it, and define it to be a call to the function.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Yann E. MORIN 2012-10-20 01:06:24 +02:00 committed by Michal Marek
parent 337a275d03
commit b341f7882f

View file

@ -39,6 +39,12 @@ extern "C" {
#ifndef CONFIG_ #ifndef CONFIG_
#define CONFIG_ "CONFIG_" #define CONFIG_ "CONFIG_"
#endif #endif
static inline const char *CONFIG_prefix(void)
{
return CONFIG_;
}
#undef CONFIG_
#define CONFIG_ CONFIG_prefix()
#define TF_COMMAND 0x0001 #define TF_COMMAND 0x0001
#define TF_PARAM 0x0002 #define TF_PARAM 0x0002