diff options
Diffstat (limited to 'src/include/compiler.h')
| -rw-r--r-- | src/include/compiler.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/include/compiler.h b/src/include/compiler.h index 3aee4a6..f4ea32e 100644 --- a/src/include/compiler.h +++ b/src/include/compiler.h @@ -123,9 +123,19 @@ __asm__ ( ".equ\t" OBJECT_SYMBOL_STR ", 0" ); __asm__ ( ".equ\tDEBUG_LEVEL, " DEBUG_SYMBOL_STR ); #endif +/** Do not print + * + * This function is used only for printf()-style format string + * checking. The function body does not exist, and no reference to it + * should ever appear in any compiled object. + */ +extern int __attribute__ (( format ( printf, 1, 2 ) )) +__do_not_printf ( const char *fmt, ... ); + #define DBG_PRINT(...) printf ( __VA_ARGS__ ) -#define DBG_DISCARD(...) do { if ( 0 ) printf ( __VA_ARGS__ ); } while ( 0 ) -/*#define DBG_DISCARD(...) do {} while ( 0 )*/ +#define DBG_DISCARD(...) do { \ + if ( 0 ) __do_not_printf ( __VA_ARGS__ ); \ + } while ( 0 ) #define DBG DBG_DISCARD #define DBG2 DBG_DISCARD |