xref: /netbsd-src/usr.bin/xlint/common/inittyp.c (revision a644e605c1637fe174dffe39af8df4c1c51acbe0)
1 /*	$NetBSD: inittyp.c,v 1.43 2024/08/29 20:35:18 rillig Exp $	*/
2 
3 /*
4  * Copyright (c) 1994, 1995 Jochen Pohl
5  * All Rights Reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Jochen Pohl for
18  *	The NetBSD Project.
19  * 4. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #if HAVE_NBTOOL_CONFIG_H
35 #include "nbtool_config.h"
36 #endif
37 
38 #include <sys/cdefs.h>
39 #if defined(__RCSID)
40 __RCSID("$NetBSD: inittyp.c,v 1.43 2024/08/29 20:35:18 rillig Exp $");
41 #endif
42 
43 #if IS_LINT1
44 #include "lint1.h"
45 #else
46 #include "lint2.h"
47 #endif
48 
49 #define INT_RANK	(/*CONSTCOND*/INTPTR_TSPEC == LONG ? 4 : 5)
50 
51 #if IS_LINT1
52 #define typeinfo(name, signed_type, unsigned_type, size_in_bits, rv, c) \
53 	{ /*CONSTCOND*/ \
54 		size_in_bits, \
55 		(c) == 'u' || (c) == 's' || (c) == 'p' ? RK_INTEGER : \
56 		    (c) == 'f' ? RK_FLOATING : \
57 		    (c) == 'c' ? RK_COMPLEX : \
58 		    RK_NONE, \
59 		rv, \
60 		signed_type, unsigned_type, \
61 		(c) == 's' || (c) == 'u', \
62 		(c) == 'u' || (c) == 'p', \
63 		(c) == 'f' || (c) == 'c', \
64 		(c) == 's' || (c) == 'u' || (c) == 'f' || \
65 		    (c) == 'c', \
66 		(c) == 's' || (c) == 'u' || (c) == 'f' || \
67 		    (c) == 'c' || (c) == 'p', \
68 		(c) == 'c', \
69 		name, \
70 	}
71 #else
72 #define typeinfo(name, signed_type, unsigned_type, size_in_bits, rank, c) \
73 	{ /*CONSTCOND*/ \
74 		signed_type, unsigned_type, \
75 		(c) == 's' || (c) == 'u', \
76 		name, \
77 	}
78 #endif
79 
80 /* various type information */
81 ttab_t ttab[NTSPEC] = {
82 	typeinfo(NULL, NO_TSPEC, NO_TSPEC, 0, 0, ' '),
83 	typeinfo("signed", SIGNED, UNSIGN, 0, 0, ' '),
84 	typeinfo("unsigned", SIGNED, UNSIGN, 0, 0, ' '),
85 	typeinfo("_Bool", BOOL, BOOL, CHAR_SIZE, 1, 'u'),
86 	typeinfo("char", SCHAR, UCHAR, CHAR_SIZE, 2,
87 	    TARG_CHAR_MIN == 0 ? 'u' : 's'),
88 	typeinfo("signed char", SCHAR, UCHAR, CHAR_SIZE, 2, 's'),
89 	typeinfo("unsigned char", SCHAR, UCHAR, CHAR_SIZE, 2, 'u'),
90 	typeinfo("short", SHORT, USHORT, SHORT_SIZE, 3, 's'),
91 	typeinfo("unsigned short", SHORT, USHORT, SHORT_SIZE, 3, 'u'),
92 	typeinfo("int", INT, UINT, INT_SIZE, INT_RANK, 's'),
93 	typeinfo("unsigned int", INT, UINT, INT_SIZE, INT_RANK, 'u'),
94 	typeinfo("long", LONG, ULONG, LONG_SIZE, 5, 's'),
95 	typeinfo("unsigned long", LONG, ULONG, LONG_SIZE, 5, 'u'),
96 	typeinfo("long long", LLONG, ULLONG, LLONG_SIZE, 6, 's'),
97 	typeinfo("unsigned long long", LLONG, ULLONG, LLONG_SIZE, 6, 'u'),
98 #ifdef INT128_SIZE
99 	typeinfo("__int128_t", INT128, UINT128, INT128_SIZE, 7, 's'),
100 	typeinfo("__uint128_t", INT128, UINT128, INT128_SIZE, 7, 'u'),
101 #endif
102 	typeinfo("float", FLOAT, FLOAT, FLOAT_SIZE, 1, 'f'),
103 	typeinfo("double", DOUBLE, DOUBLE, DOUBLE_SIZE, 2, 'f'),
104 	typeinfo("long double", LDOUBLE, LDOUBLE, LDOUBLE_SIZE, 3, 'f'),
105 #ifdef DEBUG
106 	typeinfo("_Complex", NO_TSPEC, NO_TSPEC, 0, 0, ' '),
107 #else
108 	typeinfo(NULL, NO_TSPEC, NO_TSPEC, 0, 0, ' '),
109 #endif
110 	typeinfo("float _Complex", FCOMPLEX, FCOMPLEX,
111 	    FLOAT_SIZE * 2, 1, 'c'),
112 	typeinfo("double _Complex", DCOMPLEX, DCOMPLEX,
113 	    DOUBLE_SIZE * 2, 2, 'c'),
114 	typeinfo("long double _Complex", LCOMPLEX, LCOMPLEX,
115 	    LDOUBLE_SIZE * 2, 3, 'c'),
116 	typeinfo("void", VOID, VOID, 0, 0, ' '),
117 	typeinfo("auto", AUTO_TYPE, AUTO_TYPE, 0, 0, ' '),
118 	typeinfo("struct", STRUCT, STRUCT, 0, 0, ' '),
119 	typeinfo("union", UNION, UNION, 0, 0, ' '),
120 	// Will become more complicated in C23, which allows to choose the
121 	// underlying type.
122 	typeinfo("enum", ENUM, ENUM, ENUM_SIZE, INT_RANK, 's'),
123 	// Same as 'unsigned long', which matches all supported platforms.
124 	typeinfo("pointer", PTR, PTR, PTR_SIZE, 5, 'p'),
125 	typeinfo("array", ARRAY, ARRAY, 0, 0, ' '),
126 	typeinfo("function", FUNC, FUNC, 0, 0, ' '),
127 };
128 #undef typeinfo
129