| // The tendency of gcc to produce stupid warnings continues with |
| // warn_unused_result, which warns about things like ignoring the return code |
| // of nice(2) (which is completely useless since -1 is a legitimate return |
| // value on success and even the man page tells you to use errno instead). |
| |
| // This makes it stop. |
| |
| #undef _FORTIFY_SOURCE |
| |
| #define _FILE_OFFSET_BITS 64 |
| |
| #include <features.h> |
| |
| //#define _POSIX_C_SOURCE 200809L |
| //#define _XOPEN_SOURCE 600 |
| //#define _BSD_SOURCE |
| //#define _SVID_SOURCE |
| |
| //#include <stdio.h> |
| //#define fdprintf(...) dprintf(__VA_ARGS__) |
| |
| #ifdef __GLIBC__ |
| // An SUSv4 function that glibc refuses to #define without crazy #defines, |
| // see http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html |
| #include <time.h> |
| char *strptime(const char *buf, const char *format, struct tm *tm); |
| #endif |
| |
| #ifdef __GNUC__ |
| #define noreturn __attribute__((noreturn)) |
| #else |
| #define noreturn |
| #endif |
| |
| #ifndef __APPLE__ |
| #include <byteswap.h> |
| #include <endian.h> |
| |
| #if __BYTE_ORDER == __BIG_ENDIAN |
| #define IS_BIG_ENDIAN 1 |
| #else |
| #define IS_BIG_ENDIAN 0 |
| #endif |
| |
| int clearenv(void); |
| #else |
| |
| #ifdef __BIG_ENDIAN__ |
| #define IS_BIG_ENDIAN 1 |
| #else |
| #define IS_BIG_ENDIAN 0 |
| #endif |
| |
| #endif |
| |
| #if IS_BIG_ENDIAN |
| #define IS_LITTLE_ENDIAN 0 |
| #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 IS_LITTLE_ENDIAN 1 |
| #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 |
| |
| // Some versions of gcc produce spurious "may be uninitialized" warnings in |
| // cases where it provably can't happen. Unfortunately, although this warning |
| // is calculated and produced separately from the "is definitely used |
| // uninitialized" warnings, there's no way to turn off the broken spurious "may |
| // be" warnings without also turning off the non-broken "is" warnings. |
| |
| #if CFG_TOYBOX_DEBUG |
| #define GCC_BUG =0 |
| #else |
| #define GCC_BUG |
| #endif |
| |
| #if defined(__APPLE__) || defined(__ANDROID__) |
| ssize_t getdelim(char **lineptr, size_t *n, int delim, FILE *stream); |
| ssize_t getline(char **lineptr, size_t *n, FILE *stream); |
| #endif |