704847f405
- convert to ANSI KNF - remove trailing whitespace - translate some comments from german into english code compiles and runs clean, and tested by running "make lint" against xlint source using previous and this lint produces same results.
189 lines
6.4 KiB
C
189 lines
6.4 KiB
C
/* $NetBSD: lint2.h,v 1.6 2001/05/28 12:40:38 lukem Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All Rights Reserved.
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* Copyright (c) 1994, 1995 Jochen Pohl
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jochen Pohl for
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* The NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "lint.h"
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/*
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* Types are described by structures of type type_t.
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*/
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typedef struct type {
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tspec_t t_tspec; /* type specifier */
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u_int t_const : 1; /* constant */
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u_int t_volatile : 1; /* volatile */
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u_int t_vararg : 1; /* function has variable number of arguments */
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u_int t_isenum : 1; /* enum type */
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u_int t_proto : 1; /* this is a prototype */
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u_int t_istag : 1; /* tag with _t_tag valid */
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u_int t_istynam : 1; /* tag with _t_tynam valid */
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u_int t_isuniqpos : 1; /* tag with _t_uniqpos valid */
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union {
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int _t_dim; /* if the type is an ARRAY than this
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is the dimension of the array. */
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struct hte *_t_tag; /* hash table entry of tag if
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t_isenum, STRUCT or UNION */
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struct hte *_t_tynam; /* hash table entry of typename if
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t_isenum, STRUCT or UNION */
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struct {
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int p_line;
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short p_file;
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int p_uniq;
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} _t_uniqpos; /* unique position, for untagged
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untyped STRUCTs, UNIONS, and ENUMs,
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if t_isuniqpos */
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struct type **_t_args; /* list of argument types if this
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is a prototype */
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} t_u;
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struct type *t_subt; /* indirected type (array element, pointed to
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type, type of return value) */
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} type_t;
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#define t_dim t_u._t_dim
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#define t_tag t_u._t_tag
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#define t_tynam t_u._t_tynam
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#define t_uniqpos t_u._t_uniqpos
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#define t_args t_u._t_args
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/*
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* argument information
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*
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* Such a structure is created for each argument of a function call
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* which is an integer constant or a constant string.
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*/
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typedef struct arginf {
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int a_num; /* # of argument (1..) */
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u_int a_zero : 1; /* argument is 0 */
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u_int a_pcon : 1; /* msb of argument is not set */
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u_int a_ncon : 1; /* msb of argument is set */
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u_int a_fmt : 1; /* a_fstrg points to format string */
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char *a_fstrg; /* format string */
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struct arginf *a_nxt; /* information for next const. argument */
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} arginf_t;
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/*
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* Keeps information about position in source file.
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*/
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typedef struct {
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u_short p_src; /* index of name of translation unit
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(the name which was specified at the
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command line) */
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u_short p_line; /* line number in p_src */
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u_short p_isrc; /* index of (included) file */
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u_short p_iline; /* line number in p_iline */
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} pos_t;
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/*
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* Used for definitions and declarations
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*
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* To save memory, variable sized structures are used. If
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* all s_va, s_prfl and s_scfl are not set, the memory allocated
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* for a symbol is only large enough to keep the first member of
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* struct sym, s_s.
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*/
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typedef struct sym {
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struct {
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pos_t s_pos; /* pos of def./decl. */
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#ifndef lint
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u_int s_def : 3; /* DECL, TDEF or DEF */
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#else
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def_t s_def;
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#endif
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u_int s_rval : 1; /* function has return value */
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u_int s_osdef : 1; /* old style function definition */
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u_int s_static : 1; /* symbol is static */
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u_int s_va : 1; /* check only first s_nva arguments */
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u_int s_prfl : 1; /* printflike */
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u_int s_scfl : 1; /* scanflike */
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u_short s_type; /* type */
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struct sym *s_nxt; /* next symbol with same name */
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} s_s;
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short s_nva;
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short s_nprfl;
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short s_nscfl;
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} sym_t;
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#define s_pos s_s.s_pos
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#define s_rval s_s.s_rval
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#define s_osdef s_s.s_osdef
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#define s_static s_s.s_static
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#define s_def s_s.s_def
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#define s_va s_s.s_va
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#define s_prfl s_s.s_prfl
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#define s_scfl s_s.s_scfl
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#define s_type s_s.s_type
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#define s_nxt s_s.s_nxt
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/*
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* Used to store informations about function calls.
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*/
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typedef struct fcall {
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pos_t f_pos; /* position of call */
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u_int f_rused : 1; /* return value used */
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u_int f_rdisc : 1; /* return value discarded (casted to void) */
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u_short f_type; /* types of expected return value and args */
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arginf_t *f_args; /* information about constant arguments */
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struct fcall *f_nxt; /* next call of same function */
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} fcall_t;
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/*
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* Used to store information about usage of symbols other
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* than for function calls.
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*/
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typedef struct usym {
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pos_t u_pos; /* position */
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struct usym *u_nxt; /* next usage */
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} usym_t;
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/*
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* hash table entry
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*/
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typedef struct hte {
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const char *h_name; /* name */
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u_int h_used : 1; /* symbol is used */
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u_int h_def : 1; /* symbol is defined */
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u_int h_static : 1; /* static symbol */
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sym_t *h_syms; /* declarations and definitions */
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sym_t **h_lsym; /* points to s_nxt of last decl./def. */
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fcall_t *h_calls; /* function calls */
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fcall_t **h_lcall; /* points to f_nxt of last call */
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usym_t *h_usyms; /* usage info */
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usym_t **h_lusym; /* points to u_nxt of last usage info */
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struct hte *h_link; /* next hte with same hash function */
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struct hte *h_hte; /* pointer to other htes (for renames */
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} hte_t;
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/* maps type indices into pointers to type structs */
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#define TP(idx) (tlst[idx])
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#include "externs2.h"
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