diff options
Diffstat (limited to 'include/platform.h')
| -rw-r--r-- | include/platform.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/platform.h b/include/platform.h index 8d6ed9a..fe68547 100644 --- a/include/platform.h +++ b/include/platform.h @@ -97,9 +97,15 @@ # endif #endif +/* FAST_FUNC is a qualifier which (possibly) makes function call faster + * and/or smaller by using modified ABI. It is usually only needed + * on non-static, busybox internal functions. Recent versions of gcc + * optimize statics automatically. FAST_FUNC on static is required + * only if you need to match a function pointer's type */ #if __GNUC_PREREQ(3,0) && defined(i386) /* || defined(__x86_64__)? */ # define FAST_FUNC __attribute__((regparm(3))) +/* #elif ... - add your favorite arch today! */ #else # define FAST_FUNC #endif @@ -145,8 +151,9 @@ /* ---- Unaligned access ------------------------------------ */ /* parameter is supposed to be an uint32_t* ptr */ -#if defined(i386) || defined(__x86_64__) /* + other arches? */ +#if defined(i386) || defined(__x86_64__) #define get_unaligned_u32p(u32p) (*(u32p)) +/* #elif ... - add your favorite arch today! */ #else /* performs reasonably well (gcc usually inlines memcpy here) */ #define get_unaligned_u32p(u32p) ({ uint32_t __t; memcpy(&__t, (u32p), 4); __t; }) |