1 /* 2 american fuzzy lop - type definitions and minor macros 3 ------------------------------------------------------ 4 5 Written and maintained by Michal Zalewski <lcamtuf@google.com> 6 7 Copyright 2013, 2014, 2015 Google Inc. All rights reserved. 8 9 Licensed under the Apache License, Version 2.0 (the "License"); 10 you may not use this file except in compliance with the License. 11 You may obtain a copy of the License at: 12 13 http://www.apache.org/licenses/LICENSE-2.0 14 15 */ 16 17 #ifndef _HAVE_TYPES_H 18 #define _HAVE_TYPES_H 19 20 #include <stdint.h> 21 #include <stdlib.h> 22 23 typedef uint8_t u8; 24 typedef uint16_t u16; 25 typedef uint32_t u32; 26 27 /* 28 29 Ugh. There is an unintended compiler / glibc #include glitch caused by 30 combining the u64 type an %llu in format strings, necessitating a workaround. 31 32 In essence, the compiler is always looking for 'unsigned long long' for %llu. 33 On 32-bit systems, the u64 type (aliased to uint64_t) is expanded to 34 'unsigned long long' in <bits/types.h>, so everything checks out. 35 36 But on 64-bit systems, it is #ifdef'ed in the same file as 'unsigned long'. 37 Now, it only happens in circumstances where the type happens to have the 38 expected bit width, *but* the compiler does not know that... and complains 39 about 'unsigned long' being unsafe to pass to %llu. 40 41 */ 42 43 #ifdef __x86_64__ 44 typedef unsigned long long u64; 45 #else 46 typedef uint64_t u64; 47 #endif /* ^__x86_64__ */ 48 49 typedef int8_t s8; 50 typedef int16_t s16; 51 typedef int32_t s32; 52 typedef int64_t s64; 53 54 #ifndef MIN 55 # define MIN(_a,_b) ((_a) > (_b) ? (_b) : (_a)) 56 # define MAX(_a,_b) ((_a) > (_b) ? (_a) : (_b)) 57 #endif /* !MIN */ 58 59 #define SWAP16(_x) ({ \ 60 u16 _ret = (_x); \ 61 (u16)((_ret << 8) | (_ret >> 8)); \ 62 }) 63 64 #define SWAP32(_x) ({ \ 65 u32 _ret = (_x); \ 66 (u32)((_ret << 24) | (_ret >> 24) | \ 67 ((_ret << 8) & 0x00FF0000) | \ 68 ((_ret >> 8) & 0x0000FF00)); \ 69 }) 70 71 #ifdef AFL_LLVM_PASS 72 # define AFL_R(x) (random() % (x)) 73 #else 74 # define R(x) (random() % (x)) 75 #endif /* ^AFL_LLVM_PASS */ 76 77 #define STRINGIFY_INTERNAL(x) #x 78 #define STRINGIFY(x) STRINGIFY_INTERNAL(x) 79 80 #define MEM_BARRIER() \ 81 asm volatile("" ::: "memory") 82 83 #define likely(_x) __builtin_expect(!!(_x), 1) 84 #define unlikely(_x) __builtin_expect(!!(_x), 0) 85 86 #endif /* ! _HAVE_TYPES_H */ 87