diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/platform.h | 166 |
1 files changed, 87 insertions, 79 deletions
diff --git a/include/platform.h b/include/platform.h index 317349fed..e2136a2ea 100644 --- a/include/platform.h +++ b/include/platform.h @@ -19,7 +19,7 @@ /* __restrict is known in EGCS 1.2 and above. */ #if !__GNUC_PREREQ(2,92) # ifndef __restrict -# define __restrict /* Ignore */ +# define __restrict # endif #endif @@ -61,14 +61,14 @@ # define DEPRECATED __attribute__ ((__deprecated__)) # define UNUSED_PARAM_RESULT __attribute__ ((warn_unused_result)) # else -# define DEPRECATED /* n/a */ -# define UNUSED_PARAM_RESULT /* n/a */ +# define DEPRECATED +# define UNUSED_PARAM_RESULT # endif #else -# define ALWAYS_INLINE inline /* n/a */ -# define NOINLINE /* n/a */ -# define DEPRECATED /* n/a */ -# define UNUSED_PARAM_RESULT /* n/a */ +# define ALWAYS_INLINE inline +# define NOINLINE +# define DEPRECATED +# define UNUSED_PARAM_RESULT #endif /* -fwhole-program makes all symbols local. The attribute externally_visible @@ -144,19 +144,19 @@ /* SWAP_LEnn means "convert CPU<->little_endian by swapping bytes" */ #if BB_BIG_ENDIAN -#define SWAP_BE16(x) (x) -#define SWAP_BE32(x) (x) -#define SWAP_BE64(x) (x) -#define SWAP_LE16(x) bswap_16(x) -#define SWAP_LE32(x) bswap_32(x) -#define SWAP_LE64(x) bswap_64(x) +# define SWAP_BE16(x) (x) +# define SWAP_BE32(x) (x) +# define SWAP_BE64(x) (x) +# define SWAP_LE16(x) bswap_16(x) +# define SWAP_LE32(x) bswap_32(x) +# define SWAP_LE64(x) bswap_64(x) #else -#define SWAP_BE16(x) bswap_16(x) -#define SWAP_BE32(x) bswap_32(x) -#define SWAP_BE64(x) bswap_64(x) -#define SWAP_LE16(x) (x) -#define SWAP_LE32(x) (x) -#define SWAP_LE64(x) (x) +# define SWAP_BE16(x) bswap_16(x) +# define SWAP_BE32(x) bswap_32(x) +# define SWAP_BE64(x) bswap_64(x) +# define SWAP_LE16(x) (x) +# define SWAP_LE32(x) (x) +# define SWAP_LE64(x) (x) #endif /* ---- Unaligned access ------------------------------------ */ @@ -165,15 +165,15 @@ * a lvalue. This makes it more likely to not swap them by mistake */ #if defined(i386) || defined(__x86_64__) -#define move_from_unaligned16(v, u16p) ((v) = *(uint16_t*)(u16p)) -#define move_from_unaligned32(v, u32p) ((v) = *(uint32_t*)(u32p)) -#define move_to_unaligned32(u32p, v) (*(uint32_t*)(u32p) = (v)) +# define move_from_unaligned16(v, u16p) ((v) = *(uint16_t*)(u16p)) +# define move_from_unaligned32(v, u32p) ((v) = *(uint32_t*)(u32p)) +# define move_to_unaligned32(u32p, v) (*(uint32_t*)(u32p) = (v)) /* #elif ... - add your favorite arch today! */ #else /* performs reasonably well (gcc usually inlines memcpy here) */ -#define move_from_unaligned16(v, u16p) (memcpy(&(v), (u16p), 2)) -#define move_from_unaligned32(v, u32p) (memcpy(&(v), (u32p), 4)) -#define move_to_unaligned32(u32p, v) do { \ +# define move_from_unaligned16(v, u16p) (memcpy(&(v), (u16p), 2)) +# define move_from_unaligned32(v, u32p) (memcpy(&(v), (u32p), 4)) +# define move_to_unaligned32(u32p, v) do { \ uint32_t __t = (v); \ memcpy((u32p), &__t, 4); \ } while (0) @@ -225,21 +225,21 @@ __extension__ typedef unsigned long long __u64; #if defined __GLIBC__ || defined __UCLIBC__ \ || defined __dietlibc__ || defined _NEWLIB_VERSION -#include <features.h> -#define HAVE_FEATURES_H -#include <stdint.h> -#define HAVE_STDINT_H +# include <features.h> +# define HAVE_FEATURES_H +# include <stdint.h> +# define HAVE_STDINT_H #elif !defined __APPLE__ /* Largest integral types. */ -#if __BIG_ENDIAN__ +# if __BIG_ENDIAN__ typedef long intmax_t; typedef unsigned long uintmax_t; -#else +# else __extension__ typedef long long intmax_t; __extension__ typedef unsigned long long uintmax_t; -#endif +# endif #endif /* Size-saving "small" ints (arch-dependent) */ @@ -256,20 +256,20 @@ typedef unsigned smalluint; /* ISO C Standard: 7.16 Boolean type and values <stdbool.h> */ #if (defined __digital__ && defined __unix__) /* old system without (proper) C99 support */ -#define bool smalluint +# define bool smalluint #else /* modern system, so use it */ -#include <stdbool.h> +# include <stdbool.h> #endif /* Try to defeat gcc's alignment of "char message[]"-like data */ #if 1 /* if needed: !defined(arch1) && !defined(arch2) */ -#define ALIGN1 __attribute__((aligned(1))) -#define ALIGN2 __attribute__((aligned(2))) +# define ALIGN1 __attribute__((aligned(1))) +# define ALIGN2 __attribute__((aligned(2))) #else /* Arches which MUST have 2 or 4 byte alignment for everything are here */ -#define ALIGN1 -#define ALIGN2 +# define ALIGN1 +# define ALIGN2 #endif @@ -281,13 +281,13 @@ typedef unsigned smalluint; #if ENABLE_NOMMU || \ (defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \ __UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__) -#define BB_MMU 0 -#define USE_FOR_NOMMU(...) __VA_ARGS__ -#define USE_FOR_MMU(...) +# define BB_MMU 0 +# define USE_FOR_NOMMU(...) __VA_ARGS__ +# define USE_FOR_MMU(...) #else -#define BB_MMU 1 -#define USE_FOR_NOMMU(...) -#define USE_FOR_MMU(...) __VA_ARGS__ +# define BB_MMU 1 +# define USE_FOR_NOMMU(...) +# define USE_FOR_MMU(...) __VA_ARGS__ #endif /* Platforms that haven't got dprintf need to implement fdprintf() in @@ -297,7 +297,7 @@ typedef unsigned smalluint; /* Needed for: glibc */ /* Not needed for: dietlibc */ /* Others: ?? (add as needed) */ -#define fdprintf dprintf +# define fdprintf dprintf #endif #if defined(__dietlibc__) @@ -323,7 +323,6 @@ static ALWAYS_INLINE char* strchrnul(const char *s, char c) # define PRIu32 "u" /* use legacy setpgrp(pid_t,pid_t) for now. move to platform.c */ # define bb_setpgrp() do { pid_t __me = getpid(); setpgrp(__me,__me); } while (0) - # if !defined ADJ_OFFSET_SINGLESHOT && defined MOD_CLKA && defined MOD_OFFSET # define ADJ_OFFSET_SINGLESHOT (MOD_CLKA | MOD_OFFSET) # endif @@ -344,44 +343,53 @@ static ALWAYS_INLINE char* strchrnul(const char *s, char c) #endif #if defined(__linux__) -#include <sys/mount.h> +# include <sys/mount.h> /* Make sure we have all the new mount flags we actually try to use. */ -#ifndef MS_BIND -#define MS_BIND (1<<12) -#endif -#ifndef MS_MOVE -#define MS_MOVE (1<<13) -#endif -#ifndef MS_RECURSIVE -#define MS_RECURSIVE (1<<14) -#endif -#ifndef MS_SILENT -#define MS_SILENT (1<<15) -#endif - +# ifndef MS_BIND +# define MS_BIND (1 << 12) +# endif +# ifndef MS_MOVE +# define MS_MOVE (1 << 13) +# endif +# ifndef MS_RECURSIVE +# define MS_RECURSIVE (1 << 14) +# endif +# ifndef MS_SILENT +# define MS_SILENT (1 << 15) +# endif /* The shared subtree stuff, which went in around 2.6.15. */ -#ifndef MS_UNBINDABLE -#define MS_UNBINDABLE (1<<17) -#endif -#ifndef MS_PRIVATE -#define MS_PRIVATE (1<<18) -#endif -#ifndef MS_SLAVE -#define MS_SLAVE (1<<19) -#endif -#ifndef MS_SHARED -#define MS_SHARED (1<<20) -#endif -#ifndef MS_RELATIME -#define MS_RELATIME (1 << 21) -#endif +# ifndef MS_UNBINDABLE +# define MS_UNBINDABLE (1 << 17) +# endif +# ifndef MS_PRIVATE +# define MS_PRIVATE (1 << 18) +# endif +# ifndef MS_SLAVE +# define MS_SLAVE (1 << 19) +# endif +# ifndef MS_SHARED +# define MS_SHARED (1 << 20) +# endif +# ifndef MS_RELATIME +# define MS_RELATIME (1 << 21) +# endif -#if !defined(BLKSSZGET) -#define BLKSSZGET _IO(0x12, 104) +# if !defined(BLKSSZGET) +# define BLKSSZGET _IO(0x12, 104) +# endif +# if !defined(BLKGETSIZE64) +# define BLKGETSIZE64 _IOR(0x12,114,size_t) +# endif #endif -#if !defined(BLKGETSIZE64) -#define BLKGETSIZE64 _IOR(0x12,114,size_t) + +/* The field domainname of struct utsname is Linux specific. */ +#if !defined(__linux__) +# define HAVE_NO_UTSNAME_DOMAINNAME #endif + +/* If this system doesn't have IUCLC bit in struct termios::c_iflag... */ +#ifndef IUCLC +# define IUCLC 0 #endif #endif |