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types.h
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types.h
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/*
american fuzzy lop++ - type definitions and minor macros
--------------------------------------------------------
Originally written by Michal Zalewski
Now maintained by by Marc Heuse <[email protected]>,
Heiko Eißfeldt <[email protected]> and
Andrea Fioraldi <[email protected]>
Copyright 2016, 2017 Google Inc. All rights reserved.
Copyright 2019 AFLplusplus Project. 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:
http://www.apache.org/licenses/LICENSE-2.0
*/
#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;
#else
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 _ret = (_x); \
(u16)((_ret << 8) | (_ret >> 8)); \
\
})
#define SWAP32(_x) \
({ \
\
u32 _ret = (_x); \
(u32)((_ret << 24) | (_ret >> 24) | ((_ret << 8) & 0x00FF0000) | \
((_ret >> 8) & 0x0000FF00)); \
\
})
#ifdef AFL_LLVM_PASS
#if defined(__linux__)
#define AFL_SR(s) (srandom(s))
#define AFL_R(x) (random() % (x))
#else
#define AFL_SR(s) ((void)s)
#define AFL_R(x) (arc4random_uniform(x))
#endif
#else
#if defined(__linux__)
#define SR(s) (srandom(s))
#define R(x) (random() % (x))
#else
#define SR(s) ((void)s)
#define R(x) (arc4random_uniform(x))
#endif
#endif /* ^AFL_LLVM_PASS */
#define STRINGIFY_INTERNAL(x) #x
#define STRINGIFY(x) STRINGIFY_INTERNAL(x)
#define MEM_BARRIER() __asm__ volatile("" ::: "memory")
#if __GNUC__ < 6
#define likely(_x) (_x)
#define unlikely(_x) (_x)
#else
#define likely(_x) __builtin_expect(!!(_x), 1)
#define unlikely(_x) __builtin_expect(!!(_x), 0)
#endif
#endif /* ! _HAVE_TYPES_H */