nixpkgs/pkgs/tools/security/afl/qemu-patches/afl-types.h
Austin Seipp a11078a78c nixpkgs: afl - add QEMU support
This adds support for `afl-fuzz -Q`, which can be used to instrument
arbitrary black-box binary code for fuzz testing using American Fuzzy
Lop through QEMU emulation.

This requires a custom QEMU 2.2.0 build of the Linux userspace emulators
(system emulators aren't required) with some custom patches. Furthermore
we have to patch the patches a little to make the build more sane (there
are some notes in the README about this).

Overall, the addition of this feature by default doesn't significantly
impact build times (since building QEMU for only one target builds only
a fraction of the source code, and many features are disabled), so it's
enabled by default.

Signed-off-by: Austin Seipp <aseipp@pobox.com>
2015-03-22 22:52:57 -05:00

80 lines
2.1 KiB
C

/*
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 /* ^sizeof(...) */
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)); \
})
#define R(x) (random() % (x))
#define STRINGIFY_INTERNAL(x) #x
#define STRINGIFY(x) STRINGIFY_INTERNAL(x)
#define MEM_BARRIER() \
asm volatile("" ::: "memory")
#endif /* ! _HAVE_TYPES_H */