diff options
Diffstat (limited to 'src/include/stddef.h')
| -rw-r--r-- | src/include/stddef.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/include/stddef.h b/src/include/stddef.h index b58f645a3b..35326ed6c6 100644 --- a/src/include/stddef.h +++ b/src/include/stddef.h @@ -34,4 +34,12 @@ typedef unsigned int wint_t; #define MAYBE_STATIC static #endif +#ifndef __ROMCC__ +/* Provide a pointer to address 0 that thwarts any "accessing this is + * undefined behaviour and do whatever" trickery in compilers. + * Use when you _really_ need to read32(zeroptr) (ie. read address 0). + */ +extern void *zeroptr; +#endif + #endif /* STDDEF_H */ |