1 /* $NetBSD: lint2.h,v 1.2 1995/07/03 21:24:49 cgd Exp $ */
4 * Copyright (c) 1994, 1995 Jochen Pohl
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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.
37 * Types are described by structures of type type_t.
40 tspec_t t_tspec; /* type specifier */
41 u_int t_const : 1; /* constant */
42 u_int t_volatile : 1; /* volatile */
43 u_int t_vararg : 1; /* function has variable number of arguments */
44 u_int t_isenum : 1; /* enum type */
45 u_int t_proto : 1; /* this is a prototype */
46 u_int t_istag : 1; /* tag with _t_tag valid */
47 u_int t_istynam : 1; /* tag with _t_tynam valid */
49 int _t_dim; /* if the type is an ARRAY than this
50 is the dimension of the array. */
51 struct hte *_t_tag; /* hash table entry of tag if
52 t_isenum, STRUCT or UNION */
53 struct hte *_t_tynam; /* hash table entry of typename if
54 t_isenum, STRUCT or UNION */
55 struct type **_t_args; /* list of argument types if this
58 struct type *t_subt; /* indirected type (array element, pointed to
59 type, type of return value) */
62 #define t_dim t_u._t_dim
63 #define t_tag t_u._t_tag
64 #define t_tynam t_u._t_tynam
65 #define t_args t_u._t_args
68 * argument information
70 * Such a structure is created for each argument of a function call
71 * which is an integer constant or a constant string.
73 typedef struct arginf {
74 int a_num; /* # of argument (1..) */
75 u_int a_zero : 1; /* argument is 0 */
76 u_int a_pcon : 1; /* msb of argument is not set */
77 u_int a_ncon : 1; /* msb of argument is set */
78 u_int a_fmt : 1; /* a_fstrg points to format string */
79 char *a_fstrg; /* format string */
80 struct arginf *a_nxt; /* information for next const. argument */
84 * Keeps information about position in source file.
87 u_short p_src; /* index of name of translation unit
88 (the name which was specified at the
90 u_short p_line; /* line number in p_src */
91 u_short p_isrc; /* index of (included) file */
92 u_short p_iline; /* line number in p_iline */
96 * Used for definitions and declarations
98 * To save memory, variable sized structures are used. If
99 * all s_va, s_prfl and s_scfl are not set, the memory allocated
100 * for a symbol is only large enough to keep the first member of
105 pos_t s_pos; /* pos of def./decl. */
107 u_int s_def : 3; /* DECL, TDEF or DEF */
111 u_int s_rval : 1; /* function has return value */
112 u_int s_osdef : 1; /* old style function definition */
113 u_int s_static : 1; /* symbol is static */
114 u_int s_va : 1; /* check only first s_nva arguments */
115 u_int s_prfl : 1; /* printflike */
116 u_int s_scfl : 1; /* scanflike */
117 u_short s_type; /* type */
118 struct sym *s_nxt; /* next symbol with same name */
125 #define s_pos s_s.s_pos
126 #define s_rval s_s.s_rval
127 #define s_osdef s_s.s_osdef
128 #define s_static s_s.s_static
129 #define s_def s_s.s_def
130 #define s_va s_s.s_va
131 #define s_prfl s_s.s_prfl
132 #define s_scfl s_s.s_scfl
133 #define s_type s_s.s_type
134 #define s_nxt s_s.s_nxt
137 * Used to store informations about function calls.
139 typedef struct fcall {
140 pos_t f_pos; /* position of call */
141 u_int f_rused : 1; /* return value used */
142 u_int f_rdisc : 1; /* return value discarded (casted to void) */
143 u_short f_type; /* types of expected return value and args */
144 arginf_t *f_args; /* information about constant arguments */
145 struct fcall *f_nxt; /* next call of same function */
149 * Used to store information about usage of symbols other
150 * than for function calls.
152 typedef struct usym {
153 pos_t u_pos; /* position */
154 struct usym *u_nxt; /* next usage */
161 const char *h_name; /* name */
162 u_int h_used : 1; /* symbol is used */
163 u_int h_def : 1; /* symbol is defined */
164 u_int h_static : 1; /* static symbol */
165 sym_t *h_syms; /* declarations and definitions */
166 sym_t **h_lsym; /* points to s_nxt of last decl./def. */
167 fcall_t *h_calls; /* function calls */
168 fcall_t **h_lcall; /* points to f_nxt of last call */
169 usym_t *h_usyms; /* usage info */
170 usym_t **h_lusym; /* points to u_nxt of last usage info */
171 struct hte *h_link; /* next hte with same hash function */
174 /* maps type indices into pointers to type structs */
175 #define TP(idx) (tlst[idx])
177 #include "externs2.h"