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- /*
- american fuzzy lop - type definitions and minor macros
- ------------------------------------------------------
- Written and maintained by Michal Zalewski <lcamtuf@google.com>
- 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:
- 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)(((u16)(_x) << 8) | ((u16)(_x) >> 8)); \
- })
- #define SWAP32(_x) ({ \
- (u32)(((u32)(_x) << 24) | ((u32)(_x) >> 24) | \
- (((u32)(_x) << 8) & 0x00FF0000) | \
- (((u32)(_x) >> 8) & 0x0000FF00)); \
- })
- #ifdef AFL_LLVM_PASS
- # define AFL_R(x) (random() % (x))
- #else
- # define R(x) (random() % (x))
- #endif /* ^AFL_LLVM_PASS */
- #define STRINGIFY_INTERNAL(x) #x
- #define STRINGIFY(x) STRINGIFY_INTERNAL(x)
- #define MEM_BARRIER() \
- __asm__ volatile("" ::: "memory")
- #define likely(_x) __builtin_expect(!!(_x), 1)
- #define unlikely(_x) __builtin_expect(!!(_x), 0)
- #endif /* ! _HAVE_TYPES_H */
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