Rizin
unix-like reverse engineering framework and cli tools
macros.h
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1 /* This file is part of libmspack.
2  * (C) 2003-2020 Stuart Caie.
3  *
4  * libmspack is free software; you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License (LGPL) version 2.1
6  *
7  * For further details, see the file COPYING.LIB distributed with libmspack
8  */
9 
10 #ifndef MSPACK_MACROS_H
11 #define MSPACK_MACROS_H 1
12 
13 /* define LD and LU as printf-format for signed and unsigned long offsets */
14 #if HAVE_INTTYPES_H
15 # include <inttypes.h>
16 #else
17 # define PRId64 "lld"
18 # define PRIu64 "llu"
19 # define PRId32 "ld"
20 # define PRIu32 "lu"
21 #endif
22 
23 #if SIZEOF_OFF_T >= 8
24 # define LD PRId64
25 # define LU PRIu64
26 #else
27 # define LD PRId32
28 # define LU PRIu32
29 #endif
30 
31 /* endian-neutral reading of little-endian data */
32 #define __egi32(a,n) (((unsigned int) ((unsigned char *)(a))[n+3] << 24) | \
33  ((unsigned int) ((unsigned char *)(a))[n+2] << 16) | \
34  ((unsigned int) ((unsigned char *)(a))[n+1] << 8) | \
35  ((unsigned int) ((unsigned char *)(a))[n]))
36 #define EndGetI64(a) (((unsigned long long int) __egi32(a,4) << 32) | __egi32(a,0))
37 #define EndGetI32(a) __egi32(a,0)
38 #define EndGetI16(a) ((((a)[1])<<8)|((a)[0]))
39 
40 /* endian-neutral reading of big-endian data */
41 #define EndGetM32(a) (((unsigned int) ((unsigned char *)(a))[0] << 24) | \
42  ((unsigned int) ((unsigned char *)(a))[1] << 16) | \
43  ((unsigned int) ((unsigned char *)(a))[2] << 8) | \
44  ((unsigned int) ((unsigned char *)(a))[3]))
45 #define EndGetM16(a) ((((a)[0])<<8)|((a)[1]))
46 
47 /* D(("formatstring", args)) prints debug messages if DEBUG defined */
48 #if DEBUG
49  /* http://gcc.gnu.org/onlinedocs/gcc/Function-Names.html */
50 # if __STDC_VERSION__ < 199901L
51 # if __GNUC__ >= 2
52 # define __func__ __FUNCTION__
53 # else
54 # define __func__ "<unknown>"
55 # endif
56 # endif
57 # include <stdio.h>
58 # define D(x) do { printf("%s:%d (%s) ",__FILE__, __LINE__, __func__); \
59  printf x ; fputc('\n', stdout); fflush(stdout);} while (0);
60 #else
61 # define D(x)
62 #endif
63 
64 #endif