#ifndef BB_PLATFORM_H
#define BB_PLATFORM_H 1
-/* Assume all these functions exist by default. Platforms where it is not
- * true will #undef them below.
- */
-#define HAVE_CLEARENV 1
-#define HAVE_FDATASYNC 1
-#define HAVE_FDPRINTF 1
-#define HAVE_MEMRCHR 1
-#define HAVE_MKDTEMP 1
-#define HAVE_PTSNAME_R 1
-#define HAVE_SETBIT 1
-#define HAVE_SIGHANDLER_T 1
-#define HAVE_STRCASESTR 1
-#define HAVE_STRCHRNUL 1
-#define HAVE_STRSEP 1
-#define HAVE_STRSIGNAL 1
-#define HAVE_VASPRINTF 1
/* Convenience macros to test the version of gcc. */
#undef __GNUC_PREREQ
# endif
#endif
-/* Define macros for some gcc attributes. This permits us to use the
- 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)
# ifndef __attribute__
# define __attribute__(x)
#endif
/* -fwhole-program makes all symbols local. The attribute externally_visible
- forces a symbol global. */
+ * forces a symbol global. */
#if __GNUC_PREREQ(4,1)
# define EXTERNALLY_VISIBLE __attribute__(( visibility("default") ))
//__attribute__ ((__externally_visible__))
#endif
/* We use __extension__ in some places to suppress -pedantic warnings
- about GCC extensions. This feature didn't work properly before
- gcc 2.8. */
+ * about GCC extensions. This feature didn't work properly before
+ * gcc 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)
-# 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
# define POP_SAVED_FUNCTION_VISIBILITY
#endif
+/* gcc-2.95 had no va_copy but only __va_copy. */
+#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
+
+
/* ---- Endian Detection ------------------------------------ */
#include <limits.h>
# define IF_LITTLE_ENDIAN(...) __VA_ARGS__
#endif
+
/* ---- Unaligned access ------------------------------------ */
#include <stdint.h>
} while (0)
#endif
-/* ---- Compiler dependent settings ------------------------- */
-#if (defined __digital__ && defined __unix__) \
- || defined __APPLE__ \
- || defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
-# undef HAVE_CLEARENV
-# undef HAVE_FDATASYNC
-# undef HAVE_MNTENT_H
-# undef HAVE_PTSNAME_R
-# undef HAVE_SYS_STATFS_H
-# undef HAVE_SIGHANDLER_T
-# undef HAVE_XTABS
-# undef HAVE_FDPRINTF
-#else
-# define HAVE_MNTENT_H 1
-# define HAVE_SYS_STATFS_H 1
-# define HAVE_XTABS 1
-#endif
+/* ---- Size-saving "small" ints (arch-dependent) ----------- */
-/*----- Kernel versioning ------------------------------------*/
-
-#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-
-/* ---- Miscellaneous --------------------------------------- */
-
-#if defined __GLIBC__ || defined __UCLIBC__ \
- || defined __dietlibc__ || defined _NEWLIB_VERSION
-# include <features.h>
-#endif
-
-/* Size-saving "small" ints (arch-dependent) */
#if defined(i386) || defined(__x86_64__) || defined(__mips__) || defined(__cris__)
/* add other arches which benefit from this... */
typedef signed char smallint;
# include <stdbool.h>
#endif
-/* Try to defeat gcc's alignment of "char message[]"-like data */
+
+/*----- Kernel versioning ------------------------------------*/
+
+#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+
+
+/* ---- Miscellaneous --------------------------------------- */
+
+#if defined __GLIBC__ \
+ || defined __UCLIBC__ \
+ || defined __dietlibc__ \
+ || defined _NEWLIB_VERSION
+# include <features.h>
+#endif
+
+/* Define bb_setpgrp */
+#if defined(__digital__) && defined(__unix__)
+/* 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)
+#else
+# define bb_setpgrp() setpgrp()
+#endif
+
+/* fdprintf is more readable, we used it before dprintf was standardized */
+#include <unistd.h>
+#define fdprintf dprintf
+
+/* Useful for defeating 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 ALIGN4
#endif
-
-/* uclibc does not implement daemon() for no-mmu systems.
+/*
* For 0.9.29 and svn, __ARCH_USE_MMU__ indicates no-mmu reliably.
* For earlier versions there is no reliable way to check if we are building
* for a mmu-less system.
# define USE_FOR_MMU(...) __VA_ARGS__
#endif
-/* 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__)
-
# include <standards.h>
# include <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
# if !defined ADJ_TICK && defined MOD_CLKB
# define ADJ_TICK MOD_CLKB
# endif
+#endif
-#else
-# define bb_setpgrp() setpgrp()
+/* ---- Who misses what? ------------------------------------ */
-#endif
+/* Assume all these functions and header files exist by default.
+ * Platforms where it is not true will #undef them below.
+ */
+#define HAVE_CLEARENV 1
+#define HAVE_FDATASYNC 1
+#define HAVE_DPRINTF 1
+#define HAVE_MEMRCHR 1
+#define HAVE_MKDTEMP 1
+#define HAVE_PTSNAME_R 1
+#define HAVE_SETBIT 1
+#define HAVE_SIGHANDLER_T 1
+#define HAVE_STPCPY 1
+#define HAVE_STRCASESTR 1
+#define HAVE_STRCHRNUL 1
+#define HAVE_STRSEP 1
+#define HAVE_STRSIGNAL 1
+#define HAVE_VASPRINTF 1
+#define HAVE_XTABS 1
+#define HAVE_MNTENT_H 1
+#define HAVE_NET_ETHERNET_H 1
+#define HAVE_SYS_STATFS_H 1
-#include <unistd.h>
-#if (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L) || defined(__GLIBC__)
-# define fdprintf dprintf
+#if defined(__GLIBC__) && (__GLIBC__ < 2 || __GLIBC_MINOR__ < 1)
+# undef HAVE_NET_ETHERNET_H
#endif
#if defined(__dietlibc__)
#endif
#if defined(__WATCOMC__)
-# undef HAVE_FDPRINTF
+# undef HAVE_DPRINTF
# undef HAVE_MEMRCHR
# undef HAVE_MKDTEMP
# undef HAVE_SETBIT
+# undef HAVE_STPCPY
# undef HAVE_STRCASESTR
# undef HAVE_STRCHRNUL
# undef HAVE_STRSEP
# undef HAVE_STRSIGNAL
# undef HAVE_VASPRINTF
+# undef HAVE_NET_ETHERNET_H
#endif
#if defined(__FreeBSD__)
# undef HAVE_STRCHRNUL
#endif
+#if (defined __digital__ && defined __unix__) \
+ || defined __APPLE__ \
+ || defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__
+# undef HAVE_CLEARENV
+# undef HAVE_FDATASYNC
+# undef HAVE_MNTENT_H
+# undef HAVE_PTSNAME_R
+# undef HAVE_SYS_STATFS_H
+# undef HAVE_SIGHANDLER_T
+# undef HAVE_XTABS
+# undef HAVE_DPRINTF
+#endif
+
+#if defined(__digital__) && defined(__unix__)
+# undef HAVE_STPCPY
+#endif
+
+#if defined(ANDROID)
+# undef HAVE_DPRINTF
+# undef HAVE_STPCPY
+# undef HAVE_STRCHRNUL
+# undef HAVE_NET_ETHERNET_H
+#endif
+
/*
* Now, define prototypes for all the functions defined in platform.c
* These must come after all the HAVE_* macros are defined (or not)
*/
-#ifndef HAVE_FDPRINTF
-extern int fdprintf(int fd, const char *format, ...);
+#ifndef HAVE_DPRINTF
+extern int dprintf(int fd, const char *format, ...);
#endif
#ifndef HAVE_MEMRCHR
typedef void (*sighandler_t)(int);
#endif
+#ifndef HAVE_STPCPY
+extern char *stpcpy(char *p, const char *to_add) FAST_FUNC;
+#endif
+
#ifndef HAVE_STRCASESTR
extern char *strcasestr(const char *s, const char *pattern) FAST_FUNC;
#endif
projects / oweals / busybox.git / blobdiff