blob: 7410acf631ba3677cc7b5e3049ce74b3c3c06ebe [file] [log] [blame]
american fuzzy lop - type definitions and minor macros
Written and maintained by Michal Zalewski <>
Copyright 2013, 2014, 2015 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
#ifndef _HAVE_TYPES_H
#define _HAVE_TYPES_H
#include <stdint.h>
#include <stdlib.h>
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
Ugh. There is an unintended compiler / glibc #include glitch caused by
combining the u64 type an %llu in format strings, necessitating a workaround.
In essence, the compiler is always looking for 'unsigned long long' for %llu.
On 32-bit systems, the u64 type (aliased to uint64_t) is expanded to
'unsigned long long' in <bits/types.h>, so everything checks out.
But on 64-bit systems, it is #ifdef'ed in the same file as 'unsigned long'.
Now, it only happens in circumstances where the type happens to have the
expected bit width, *but* the compiler does not know that... and complains
about 'unsigned long' being unsafe to pass to %llu.
#ifdef __x86_64__
typedef unsigned long long u64;
typedef uint64_t u64;
#endif /* ^__x86_64__ */
typedef int8_t s8;
typedef int16_t s16;
typedef int32_t s32;
typedef int64_t s64;
#ifndef MIN
# define MIN(_a,_b) ((_a) > (_b) ? (_b) : (_a))
# define MAX(_a,_b) ((_a) > (_b) ? (_a) : (_b))
#endif /* !MIN */
#define SWAP16(_x) ({ \
(u16)(((u16)(_x) << 8) | ((u16)(_x) >> 8)); \
#define SWAP32(_x) ({ \
(u32)(((u32)(_x) << 24) | ((u32)(_x) >> 24) | \
(((u32)(_x) << 8) & 0x00FF0000) | \
(((u32)(_x) >> 8) & 0x0000FF00)); \
# define AFL_R(x) (random() % (x))
# define R(x) (random() % (x))
#endif /* ^AFL_LLVM_PASS */
#define MEM_BARRIER() \
__asm__ volatile("" ::: "memory")
#define likely(_x) __builtin_expect(!!(_x), 1)
#define unlikely(_x) __builtin_expect(!!(_x), 0)
#endif /* ! _HAVE_TYPES_H */