Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
-#ifndef __PLATFORM_H
-#define __PLATFORM_H 1
+#ifndef BB_PLATFORM_H
+#define BB_PLATFORM_H 1
/* Convenience macros to test the version of gcc. */
#undef __GNUC_PREREQ
/* __restrict is known in EGCS 1.2 and above. */
#if !__GNUC_PREREQ(2,92)
# ifndef __restrict
-# define __restrict /* Ignore */
+# define __restrict
# endif
#endif
#undef inline
#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
/* it's a keyword */
+#elif __GNUC_PREREQ(2,7)
+# define inline __inline__
#else
-# if __GNUC_PREREQ(2,7)
-# define inline __inline__
-# else
-# define inline
-# endif
+# define inline
#endif
#ifndef __const
#define NORETURN __attribute__ ((__noreturn__))
#define PACKED __attribute__ ((__packed__))
#define ALIGNED(m) __attribute__ ((__aligned__(m)))
+
/* __NO_INLINE__: some gcc's do not honor inlining! :( */
#if __GNUC_PREREQ(3,0) && !defined(__NO_INLINE__)
# define ALWAYS_INLINE __attribute__ ((always_inline)) inline
# 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
# define FAST_FUNC
#endif
+/* Make all declarations hidden (-fvisibility flag only affects definitions) */
+/* (don't include system headers after this until corresponding pop!) */
+#if __GNUC_PREREQ(4,1)
+# define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN _Pragma("GCC visibility push(hidden)")
+# define POP_SAVED_FUNCTION_VISIBILITY _Pragma("GCC visibility pop")
+#else
+# define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
+# define POP_SAVED_FUNCTION_VISIBILITY
+#endif
+
/* ---- Endian Detection ------------------------------------ */
-#if (defined __digital__ && defined __unix__)
+#if defined(__digital__) && defined(__unix__)
# include <sex.h>
# define __BIG_ENDIAN__ (BYTE_ORDER == BIG_ENDIAN)
# define __BYTE_ORDER BYTE_ORDER
+#elif defined __FreeBSD__
+char *strchrnul(const char *s, int c);
+# include <sys/resource.h> /* rlimit */
+# include <machine/endian.h>
+# define bswap_64 __bswap64
+# define bswap_32 __bswap32
+# define bswap_16 __bswap16
+# define __BIG_ENDIAN__ (_BYTE_ORDER == _BIG_ENDIAN)
#elif !defined __APPLE__
# include <byteswap.h>
# include <endian.h>
#endif
-#ifdef __BIG_ENDIAN__
+#if defined(__BIG_ENDIAN__) && __BIG_ENDIAN__
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
#elif __BYTE_ORDER == __BIG_ENDIAN
# define BB_BIG_ENDIAN 1
# define BB_LITTLE_ENDIAN 0
-#else
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
# define BB_BIG_ENDIAN 0
# define BB_LITTLE_ENDIAN 1
+#else
+# error "Can't determine endiannes"
#endif
/* 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 ------------------------------------ */
* 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) (memcpy((u32p), &(v), 4))
+# 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)
#endif
/* ---- Networking ------------------------------------------ */
#ifndef __APPLE__
# include <arpa/inet.h>
-# ifndef __socklen_t_defined
+# if !defined(__socklen_t_defined) && !defined(_SOCKLEN_T_DECLARED)
typedef int socklen_t;
# endif
#else
/* ---- Compiler dependent settings ------------------------- */
-#if (defined __digital__ && defined __unix__) || defined __APPLE__
+#if (defined __digital__ && defined __unix__) \
+ || defined __APPLE__ || defined __FreeBSD__
# undef HAVE_MNTENT_H
# undef HAVE_SYS_STATFS_H
#else
# define HAVE_MNTENT_H 1
# define HAVE_SYS_STATFS_H 1
-#endif /* ___digital__ && __unix__ */
-
-/* linux/loop.h relies on __u64. Make sure we have that as a proper type
- * until userspace is widely fixed. */
-#if (defined __INTEL_COMPILER && !defined __GNUC__) || \
- (defined __GNUC__ && defined __STRICT_ANSI__)
-__extension__ typedef long long __s64;
-__extension__ typedef unsigned long long __u64;
#endif
/*----- Kernel versioning ------------------------------------*/
/* Don't perpetuate e2fsck crap into the headers. Clean up e2fsck instead. */
#if defined __GLIBC__ || defined __UCLIBC__ \
- || defined __dietlibc__ || defined _NEWLIB_VERSION
-#include <features.h>
-#define HAVE_FEATURES_H
-#include <stdint.h>
-#define HAVE_STDINT_H
+ || defined __dietlibc__ || defined _NEWLIB_VERSION
+# include <features.h>
+# define HAVE_FEATURES_H
+# include <stdint.h>
+# define HAVE_STDINT_H
#elif !defined __APPLE__
-/* Largest integral types. */
-#if __BIG_ENDIAN__
+/* Largest integral types. */
+# if BB_BIG_ENDIAN
+/* Looks BROKEN! */
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) */
/* 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
#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
/* Needed for: glibc */
/* Not needed for: dietlibc */
/* Others: ?? (add as needed) */
-#define fdprintf dprintf
+# define fdprintf dprintf
#endif
#if defined(__dietlibc__)
}
#endif
-/* Don't use lchown with glibc older than 2.1.x ... uClibc lacks it */
-#if (defined __GLIBC__ && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 1) || \
- defined __UC_LIBC__
+/* Don't use lchown with glibc older than 2.1.x */
+#if defined(__GLIBC__) && __GLIBC__ <= 2 && __GLIBC_MINOR__ < 1
# define lchown chown
#endif
-#if (defined __digital__ && defined __unix__)
+#if defined(__digital__) && defined(__unix__)
# include <standards.h>
-# define HAVE_STANDARDS_H
# include <inttypes.h>
-# define HAVE_INTTYPES_H
# 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
# define ADJ_TICK MOD_CLKB
# endif
-#else /* !__digital__ */
+#else
# define bb_setpgrp() setpgrp()
#endif
-#if defined(__linux__)
-#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
-/* 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
-
-#if !defined(BLKSSZGET)
-#define BLKSSZGET _IO(0x12, 104)
-#endif
-#if !defined(BLKGETSIZE64)
-#define BLKGETSIZE64 _IOR(0x12,114,size_t)
-#endif
-#endif
-
-#endif /* platform.h */