/* vi: set sw=4 ts=4: */
/*
- Copyright 2006, Bernhard Fischer
+ Copyright 2006, Bernhard Reutner-Fischer
Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#endif
/* __restrict is known in EGCS 1.2 and above. */
-#if !__GNUC_PREREQ (2,92)
+#if !__GNUC_PREREQ(2,92)
# ifndef __restrict
# define __restrict /* Ignore */
# endif
macros freely, and know that they will come into play for the
version of gcc in which they are supported. */
-#if !__GNUC_PREREQ (2,7)
+#if !__GNUC_PREREQ(2,7)
# ifndef __attribute__
# define __attribute__(x)
# endif
#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L
/* it's a keyword */
#else
-# if __GNUC_PREREQ (2,7)
+# if __GNUC_PREREQ(2,7)
# define inline __inline__
# else
# define inline
# define __const const
#endif
-# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
-# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
-# define ATTRIBUTE_PACKED __attribute__ ((__packed__))
-# define ATTRIBUTE_ALIGNED(m) __attribute__ ((__aligned__(m)))
+#define UNUSED_PARAM __attribute__ ((__unused__))
+#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
+#if __GNUC_PREREQ(3,0) && !defined(__NO_INLINE__)
+# define ALWAYS_INLINE __attribute__ ((always_inline)) inline
/* I've seen a toolchain where I needed __noinline__ instead of noinline */
-# define NOINLINE __attribute__((__noinline__))
-# if !ENABLE_WERROR
-# define ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__))
-# define ATTRIBUTE_UNUSED_RESULT __attribute__ ((warn_unused_result))
-# else
-# define ATTRIBUTE_DEPRECATED /* n/a */
-# define ATTRIBUTE_UNUSED_RESULT /* n/a */
-# endif
+# define NOINLINE __attribute__((__noinline__))
+# if !ENABLE_WERROR
+# define DEPRECATED __attribute__ ((__deprecated__))
+# define UNUSED_PARAM_RESULT __attribute__ ((warn_unused_result))
# else
-# define ALWAYS_INLINE inline /* n/a */
-# define NOINLINE /* n/a */
-# define ATTRIBUTE_DEPRECATED /* n/a */
-# define ATTRIBUTE_UNUSED_RESULT /* n/a */
+# define DEPRECATED /* n/a */
+# define UNUSED_PARAM_RESULT /* n/a */
# endif
+#else
+# define ALWAYS_INLINE inline /* n/a */
+# define NOINLINE /* n/a */
+# define DEPRECATED /* n/a */
+# define UNUSED_PARAM_RESULT /* n/a */
+#endif
/* -fwhole-program makes all symbols local. The attribute externally_visible
forces a symbol global. */
-# if __GNUC_PREREQ (4,1)
-# define EXTERNALLY_VISIBLE __attribute__(( visibility("default") ));
+#if __GNUC_PREREQ(4,1)
+# define EXTERNALLY_VISIBLE __attribute__(( visibility("default") ))
//__attribute__ ((__externally_visible__))
-# else
-# define EXTERNALLY_VISIBLE
-# endif /* GNUC >= 4.1 */
+#else
+# define EXTERNALLY_VISIBLE
+#endif /* GNUC >= 4.1 */
/* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions. This feature didn't work properly before
gcc 2.8. */
-#if !__GNUC_PREREQ (2,8)
+#if !__GNUC_PREREQ(2,8)
# ifndef __extension__
# define __extension__
# endif
#endif
/* gcc-2.95 had no va_copy but only __va_copy. */
-#if !__GNUC_PREREQ (3,0)
+#if !__GNUC_PREREQ(3,0)
# include <stdarg.h>
# if !defined va_copy && defined __va_copy
# define va_copy(d,s) __va_copy((d),(s))
# 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__)? */
+/* stdcall makes callee to pop arguments from stack, not caller */
+# define FAST_FUNC __attribute__((regparm(3),stdcall))
+/* #elif ... - add your favorite arch today! */
+#else
+# define FAST_FUNC
+#endif
+
/* ---- Endian Detection ------------------------------------ */
#if (defined __digital__ && defined __unix__)
#define SWAP_LE64(x) (x)
#endif
+/* ---- Unaligned access ------------------------------------ */
+
+/* parameter is supposed to be an uint32_t* ptr */
+#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; })
+#endif
+
/* ---- Networking ------------------------------------------ */
+
#ifndef __APPLE__
# include <arpa/inet.h>
# ifndef __socklen_t_defined
#endif
/* ---- Compiler dependent settings ------------------------- */
+
#if (defined __digital__ && defined __unix__) || defined __APPLE__
# undef HAVE_MNTENT_H
# undef HAVE_SYS_STATFS_H
#endif
/*----- Kernel versioning ------------------------------------*/
+
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-/* ---- miscellaneous --------------------------------------- */
+/* ---- Miscellaneous --------------------------------------- */
#if defined(__GNU_LIBRARY__) && __GNU_LIBRARY__ < 5 && \
!defined(__dietlibc__) && \
(defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \
__UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__)
#define BB_MMU 0
-#define BB_NOMMU 1
#define USE_FOR_NOMMU(...) __VA_ARGS__
#define USE_FOR_MMU(...)
#else
#define BB_MMU 1
-/* BB_NOMMU is not defined in this case! */
#define USE_FOR_NOMMU(...)
#define USE_FOR_MMU(...) __VA_ARGS__
#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)
projects / oweals / busybox.git / blobdiff