112099Sjoerg%{ 2280387Spfg/* $NetBSD: scan.l,v 1.37 2007/02/06 00:08:31 he Exp $ */ 312099Sjoerg 412099Sjoerg/* 591592Smarkm * Copyright (c) 1996 Christopher G. Demetriou. All Rights Reserved. 612099Sjoerg * Copyright (c) 1994, 1995 Jochen Pohl 712099Sjoerg * All Rights Reserved. 812099Sjoerg * 912099Sjoerg * Redistribution and use in source and binary forms, with or without 1012099Sjoerg * modification, are permitted provided that the following conditions 1112099Sjoerg * are met: 1212099Sjoerg * 1. Redistributions of source code must retain the above copyright 1312099Sjoerg * notice, this list of conditions and the following disclaimer. 1412099Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1512099Sjoerg * notice, this list of conditions and the following disclaimer in the 1612099Sjoerg * documentation and/or other materials provided with the distribution. 1712099Sjoerg * 3. All advertising materials mentioning features or use of this software 1812099Sjoerg * must display the following acknowledgement: 1912099Sjoerg * This product includes software developed by Jochen Pohl for 2012099Sjoerg * The NetBSD Project. 2112099Sjoerg * 4. The name of the author may not be used to endorse or promote products 2212099Sjoerg * derived from this software without specific prior written permission. 2312099Sjoerg * 2412099Sjoerg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2512099Sjoerg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2612099Sjoerg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2712099Sjoerg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2812099Sjoerg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2912099Sjoerg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3012099Sjoerg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3112099Sjoerg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3212099Sjoerg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 3312099Sjoerg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3412099Sjoerg */ 3512099Sjoerg 3691592Smarkm#include <sys/cdefs.h> 3791592Smarkm#if defined(__RCSID) && !defined(lint) 38280387Spfg__RCSID("$NetBSD: scan.l,v 1.37 2007/02/06 00:08:31 he Exp $"); 3912099Sjoerg#endif 4091592Smarkm__FBSDID("$FreeBSD$"); 4112099Sjoerg 4212099Sjoerg#include <stdlib.h> 4312099Sjoerg#include <string.h> 4412099Sjoerg#include <limits.h> 4512099Sjoerg#include <float.h> 4612099Sjoerg#include <ctype.h> 4712099Sjoerg#include <errno.h> 4812099Sjoerg#include <err.h> 4917142Sjkh#include <math.h> 5012099Sjoerg 5112099Sjoerg#include "lint1.h" 5291592Smarkm#include "cgram.h" 5312099Sjoerg 5412099Sjoerg#define CHAR_MASK (~(~0 << CHAR_BIT)) 5512099Sjoerg 5612099Sjoerg/* Current position (its also updated when an included file is parsed) */ 5791592Smarkmpos_t curr_pos = { 1, "", 0 }; 5812099Sjoerg 5912099Sjoerg/* 6012099Sjoerg * Current position in C source (not updated when an included file is 6112099Sjoerg * parsed). 6212099Sjoerg */ 6391592Smarkmpos_t csrc_pos = { 1, "", 0 }; 6412099Sjoerg 6591592Smarkmstatic void incline(void); 6691592Smarkmstatic void badchar(int); 6791592Smarkmstatic sbuf_t *allocsb(void); 6891592Smarkmstatic void freesb(sbuf_t *); 6991592Smarkmstatic int inpc(void); 7091592Smarkmstatic int hash(const char *); 7191592Smarkmstatic sym_t *search(sbuf_t *); 7291592Smarkmstatic int name(void); 7391592Smarkmstatic int keyw(sym_t *); 7491592Smarkmstatic int icon(int); 7591592Smarkmstatic int fcon(void); 7691592Smarkmstatic int operator(int, op_t); 7791592Smarkmstatic int ccon(void); 7891592Smarkmstatic int wccon(void); 7991592Smarkmstatic int getescc(int); 8091592Smarkmstatic void directive(void); 8191592Smarkmstatic void comment(void); 8291592Smarkmstatic void slashslashcomment(void); 8391592Smarkmstatic int string(void); 8491592Smarkmstatic int wcstrg(void); 8512099Sjoerg 8612099Sjoerg%} 8712099Sjoerg 88250227Sjkim%option nounput 89250227Sjkim 9012099SjoergL [_A-Za-z] 9112099SjoergD [0-9] 9212099SjoergNZD [1-9] 9312099SjoergOD [0-7] 9412099SjoergHD [0-9A-Fa-f] 9512099SjoergEX ([eE][+-]?[0-9]+) 9612099Sjoerg 9712099Sjoerg%% 9812099Sjoerg 99280387Spfg{L}({L}|{D})* return (name()); 10012099Sjoerg0{OD}*[lLuU]* return (icon(8)); 10112099Sjoerg{NZD}{D}*[lLuU]* return (icon(10)); 10212099Sjoerg0[xX]{HD}+[lLuU]* return (icon(16)); 10312099Sjoerg{D}+\.{D}*{EX}?[fFlL]? | 10412099Sjoerg{D}+{EX}[fFlL]? | 105280387Spfg0[xX]{HD}+p{HD}+[fFlL]? | 10612099Sjoerg\.{D}+{EX}?[fFlL]? return (fcon()); 10712099Sjoerg"=" return (operator(T_ASSIGN, ASSIGN)); 10812099Sjoerg"*=" return (operator(T_OPASS, MULASS)); 10912099Sjoerg"/=" return (operator(T_OPASS, DIVASS)); 11012099Sjoerg"%=" return (operator(T_OPASS, MODASS)); 11112099Sjoerg"+=" return (operator(T_OPASS, ADDASS)); 11212099Sjoerg"-=" return (operator(T_OPASS, SUBASS)); 11312099Sjoerg"<<=" return (operator(T_OPASS, SHLASS)); 11412099Sjoerg">>=" return (operator(T_OPASS, SHRASS)); 11512099Sjoerg"&=" return (operator(T_OPASS, ANDASS)); 11612099Sjoerg"^=" return (operator(T_OPASS, XORASS)); 11712099Sjoerg"|=" return (operator(T_OPASS, ORASS)); 11812099Sjoerg"||" return (operator(T_LOGOR, LOGOR)); 11912099Sjoerg"&&" return (operator(T_LOGAND, LOGAND)); 12012099Sjoerg"|" return (operator(T_OR, OR)); 12112099Sjoerg"&" return (operator(T_AND, AND)); 12212099Sjoerg"^" return (operator(T_XOR, XOR)); 12312099Sjoerg"==" return (operator(T_EQOP, EQ)); 12412099Sjoerg"!=" return (operator(T_EQOP, NE)); 12512099Sjoerg"<" return (operator(T_RELOP, LT)); 12612099Sjoerg">" return (operator(T_RELOP, GT)); 12712099Sjoerg"<=" return (operator(T_RELOP, LE)); 12812099Sjoerg">=" return (operator(T_RELOP, GE)); 12912099Sjoerg"<<" return (operator(T_SHFTOP, SHL)); 13012099Sjoerg">>" return (operator(T_SHFTOP, SHR)); 13112099Sjoerg"++" return (operator(T_INCDEC, INC)); 13212099Sjoerg"--" return (operator(T_INCDEC, DEC)); 13312099Sjoerg"->" return (operator(T_STROP, ARROW)); 13412099Sjoerg"." return (operator(T_STROP, POINT)); 13512099Sjoerg"+" return (operator(T_ADDOP, PLUS)); 13612099Sjoerg"-" return (operator(T_ADDOP, MINUS)); 13712099Sjoerg"*" return (operator(T_MULT, MULT)); 13812099Sjoerg"/" return (operator(T_DIVOP, DIV)); 13912099Sjoerg"%" return (operator(T_DIVOP, MOD)); 14012099Sjoerg"!" return (operator(T_UNOP, NOT)); 14112099Sjoerg"~" return (operator(T_UNOP, COMPL)); 14212099Sjoerg"\"" return (string()); 14312099Sjoerg"L\"" return (wcstrg()); 14412099Sjoerg";" return (T_SEMI); 14512099Sjoerg"{" return (T_LBRACE); 14612099Sjoerg"}" return (T_RBRACE); 14712099Sjoerg"," return (T_COMMA); 14812099Sjoerg":" return (T_COLON); 14912099Sjoerg"?" return (T_QUEST); 15012099Sjoerg"[" return (T_LBRACK); 15112099Sjoerg"]" return (T_RBRACK); 15212099Sjoerg"(" return (T_LPARN); 15312099Sjoerg")" return (T_RPARN); 15412099Sjoerg"..." return (T_ELLIPSE); 15512099Sjoerg"'" return (ccon()); 15612099Sjoerg"L'" return (wccon()); 15712099Sjoerg^#.*$ directive(); 15812099Sjoerg\n incline(); 15912099Sjoerg\t|" "|\f|\v ; 16012099Sjoerg"/*" comment(); 16191592Smarkm"//" slashslashcomment(); 16212099Sjoerg. badchar(yytext[0]); 16312099Sjoerg 16412099Sjoerg%% 16512099Sjoerg 16612099Sjoergstatic void 16791592Smarkmincline(void) 16812099Sjoerg{ 16912099Sjoerg curr_pos.p_line++; 17091592Smarkm curr_pos.p_uniq = 0; 17191592Smarkm if (curr_pos.p_file == csrc_pos.p_file) { 17212099Sjoerg csrc_pos.p_line++; 17391592Smarkm csrc_pos.p_uniq = 0; 17491592Smarkm } 17512099Sjoerg} 17612099Sjoerg 17712099Sjoergstatic void 17891592Smarkmbadchar(int c) 17912099Sjoerg{ 18091592Smarkm 18112099Sjoerg /* unknown character \%o */ 18212099Sjoerg error(250, c); 18312099Sjoerg} 18412099Sjoerg 18512099Sjoerg/* 18612099Sjoerg * Keywords. 18712099Sjoerg * During initialisation they are written to the symbol table. 18812099Sjoerg */ 18912099Sjoergstatic struct kwtab { 19012099Sjoerg const char *kw_name; /* keyword */ 19112099Sjoerg int kw_token; /* token returned by yylex() */ 19212099Sjoerg scl_t kw_scl; /* storage class if kw_token T_SCLASS */ 19312099Sjoerg tspec_t kw_tspec; /* type spec. if kw_token T_TYPE or T_SOU */ 19412099Sjoerg tqual_t kw_tqual; /* type qual. fi kw_token T_QUAL */ 195280387Spfg u_int kw_c89; /* c89 keyword */ 196280387Spfg u_int kw_c99; /* c99 keyword */ 197280387Spfg u_int kw_gcc; /* GCC keyword */ 19812099Sjoerg} kwtab[] = { 199280387Spfg { "asm", T_ASM, 0, 0, 0, 0, 0, 1 }, 200280387Spfg { "__asm", T_ASM, 0, 0, 0, 0, 0, 0 }, 201280387Spfg { "__asm__", T_ASM, 0, 0, 0, 0, 0, 0 }, 202280387Spfg { "auto", T_SCLASS, AUTO, 0, 0, 0, 0, 0 }, 203280387Spfg { "break", T_BREAK, 0, 0, 0, 0, 0, 0 }, 204280387Spfg { "case", T_CASE, 0, 0, 0, 0, 0, 0 }, 205280387Spfg { "char", T_TYPE, 0, CHAR, 0, 0, 0, 0 }, 206280387Spfg { "const", T_QUAL, 0, 0, CONST, 1, 0, 0 }, 207280387Spfg { "__const__", T_QUAL, 0, 0, CONST, 0, 0, 0 }, 208280387Spfg { "__const", T_QUAL, 0, 0, CONST, 0, 0, 0 }, 209280387Spfg { "continue", T_CONTINUE, 0, 0, 0, 0, 0, 0 }, 210280387Spfg { "default", T_DEFAULT, 0, 0, 0, 0, 0, 0 }, 211280387Spfg { "do", T_DO, 0, 0, 0, 0, 0, 0 }, 212280387Spfg { "double", T_TYPE, 0, DOUBLE, 0, 0, 0, 0 }, 213280387Spfg { "else", T_ELSE, 0, 0, 0, 0, 0, 0 }, 214280387Spfg { "enum", T_ENUM, 0, 0, 0, 0, 0, 0 }, 215280387Spfg { "extern", T_SCLASS, EXTERN, 0, 0, 0, 0, 0 }, 216280387Spfg { "float", T_TYPE, 0, FLOAT, 0, 0, 0, 0 }, 217280387Spfg { "for", T_FOR, 0, 0, 0, 0, 0, 0 }, 218280387Spfg { "goto", T_GOTO, 0, 0, 0, 0, 0, 0 }, 219280387Spfg { "if", T_IF, 0, 0, 0, 0, 0, 0 }, 220280387Spfg { "inline", T_SCLASS, INLINE, 0, 0, 0, 1, 0 }, 221280387Spfg { "__inline__", T_SCLASS, INLINE, 0, 0, 0, 0, 0 }, 222280387Spfg { "__inline", T_SCLASS, INLINE, 0, 0, 0, 0, 0 }, 223280387Spfg { "int", T_TYPE, 0, INT, 0, 0, 0, 0 }, 224280387Spfg { "__symbolrename", T_SYMBOLRENAME, 0, 0, 0, 0, 0, 0 }, 225280387Spfg { "long", T_TYPE, 0, LONG, 0, 0, 0, 0 }, 226280387Spfg { "register", T_SCLASS, REG, 0, 0, 0, 0, 0 }, 227280387Spfg { "return", T_RETURN, 0, 0, 0, 0, 0, 0 }, 228280387Spfg { "short", T_TYPE, 0, SHORT, 0, 0, 0, 0 }, 229280387Spfg { "signed", T_TYPE, 0, SIGNED, 0, 1, 0, 0 }, 230280387Spfg { "__signed__", T_TYPE, 0, SIGNED, 0, 0, 0, 0 }, 231280387Spfg { "__signed", T_TYPE, 0, SIGNED, 0, 0, 0, 0 }, 232280387Spfg { "sizeof", T_SIZEOF, 0, 0, 0, 0, 0, 0 }, 233280387Spfg { "static", T_SCLASS, STATIC, 0, 0, 0, 0, 0 }, 234280387Spfg { "struct", T_SOU, 0, STRUCT, 0, 0, 0, 0 }, 235280387Spfg { "switch", T_SWITCH, 0, 0, 0, 0, 0, 0 }, 236280387Spfg { "typedef", T_SCLASS, TYPEDEF, 0, 0, 0, 0, 0 }, 237280387Spfg { "union", T_SOU, 0, UNION, 0, 0, 0, 0 }, 238280387Spfg { "unsigned", T_TYPE, 0, UNSIGN, 0, 0, 0, 0 }, 239280387Spfg { "void", T_TYPE, 0, VOID, 0, 0, 0, 0 }, 240280387Spfg { "volatile", T_QUAL, 0, 0, VOLATILE, 1, 0, 0 }, 241280387Spfg { "__volatile__", T_QUAL, 0, 0, VOLATILE, 0, 0, 0 }, 242280387Spfg { "__volatile", T_QUAL, 0, 0, VOLATILE, 0, 0, 0 }, 243280387Spfg { "while", T_WHILE, 0, 0, 0, 0, 0, 0 }, 244280387Spfg { NULL, 0, 0, 0, 0, 0, 0, 0 } 24512099Sjoerg}; 24612099Sjoerg 24712099Sjoerg/* Symbol table */ 24812099Sjoergstatic sym_t *symtab[HSHSIZ1]; 24912099Sjoerg 25012099Sjoerg/* bit i of the entry with index i is set */ 25191592Smarkmuint64_t qbmasks[sizeof(uint64_t) * CHAR_BIT]; 25212099Sjoerg 25312099Sjoerg/* least significant i bits are set in the entry with index i */ 25491592Smarkmuint64_t qlmasks[sizeof(uint64_t) * CHAR_BIT + 1]; 25512099Sjoerg 25612099Sjoerg/* least significant i bits are not set in the entry with index i */ 25791592Smarkmuint64_t qumasks[sizeof(uint64_t) * CHAR_BIT + 1]; 25812099Sjoerg 25912099Sjoerg/* free list for sbuf structures */ 26012099Sjoergstatic sbuf_t *sbfrlst; 26112099Sjoerg 262286614Spfg/* type of next expected symbol */ 26312099Sjoergsymt_t symtyp; 26412099Sjoerg 26512099Sjoerg 26612099Sjoerg/* 26712099Sjoerg * All keywords are written to the symbol table. This saves us looking 268108532Sschweikh * in an extra table for each name we found. 26912099Sjoerg */ 27012099Sjoergvoid 27191592Smarkminitscan(void) 27212099Sjoerg{ 27312099Sjoerg struct kwtab *kw; 27412099Sjoerg sym_t *sym; 27512099Sjoerg int h, i; 27691592Smarkm uint64_t uq; 27712099Sjoerg 27812099Sjoerg for (kw = kwtab; kw->kw_name != NULL; kw++) { 279280387Spfg if ((kw->kw_c89 || kw->kw_c99) && tflag) 28012099Sjoerg continue; 281280387Spfg if (kw->kw_c99 && !(Sflag || gflag)) 282280387Spfg continue; 28312099Sjoerg if (kw->kw_gcc && !gflag) 28412099Sjoerg continue; 28512099Sjoerg sym = getblk(sizeof (sym_t)); 28612099Sjoerg sym->s_name = kw->kw_name; 28712099Sjoerg sym->s_keyw = 1; 28812099Sjoerg sym->s_value.v_quad = kw->kw_token; 28912099Sjoerg if (kw->kw_token == T_TYPE || kw->kw_token == T_SOU) { 29012099Sjoerg sym->s_tspec = kw->kw_tspec; 29112099Sjoerg } else if (kw->kw_token == T_SCLASS) { 29212099Sjoerg sym->s_scl = kw->kw_scl; 29312099Sjoerg } else if (kw->kw_token == T_QUAL) { 29412099Sjoerg sym->s_tqual = kw->kw_tqual; 29512099Sjoerg } 29612099Sjoerg h = hash(sym->s_name); 29712099Sjoerg if ((sym->s_link = symtab[h]) != NULL) 29812099Sjoerg symtab[h]->s_rlink = &sym->s_link; 29912099Sjoerg (symtab[h] = sym)->s_rlink = &symtab[h]; 30012099Sjoerg } 30112099Sjoerg 30212099Sjoerg /* initialize bit-masks for quads */ 30391592Smarkm for (i = 0; i < sizeof (uint64_t) * CHAR_BIT; i++) { 30491592Smarkm qbmasks[i] = (uint64_t)1 << i; 30591592Smarkm uq = ~(uint64_t)0 << i; 30612099Sjoerg qumasks[i] = uq; 30712099Sjoerg qlmasks[i] = ~uq; 30812099Sjoerg } 30912099Sjoerg qumasks[i] = 0; 31091592Smarkm qlmasks[i] = ~(uint64_t)0; 31112099Sjoerg} 31212099Sjoerg 31312099Sjoerg/* 31412099Sjoerg * Get a free sbuf structure, if possible from the free list 31512099Sjoerg */ 31612099Sjoergstatic sbuf_t * 31791592Smarkmallocsb(void) 31812099Sjoerg{ 31912099Sjoerg sbuf_t *sb; 32012099Sjoerg 32112099Sjoerg if ((sb = sbfrlst) != NULL) { 32212099Sjoerg sbfrlst = sb->sb_nxt; 32312099Sjoerg } else { 32480284Sobrien if ((sb = malloc(sizeof (sbuf_t))) == NULL) 32580284Sobrien nomem(); 32612099Sjoerg } 327204872Sjh (void)memset(sb, 0, sizeof (*sb)); 32812099Sjoerg return (sb); 32912099Sjoerg} 33012099Sjoerg 33112099Sjoerg/* 33212099Sjoerg * Put a sbuf structure to the free list 33312099Sjoerg */ 33412099Sjoergstatic void 33591592Smarkmfreesb(sbuf_t *sb) 33612099Sjoerg{ 33791592Smarkm 33812099Sjoerg sb->sb_nxt = sbfrlst; 33912099Sjoerg sbfrlst = sb; 34012099Sjoerg} 34112099Sjoerg 34212099Sjoerg/* 34312099Sjoerg * Read a character and ensure that it is positive (except EOF). 34412099Sjoerg * Increment line count(s) if necessary. 34512099Sjoerg */ 34612099Sjoergstatic int 34791592Smarkminpc(void) 34812099Sjoerg{ 34912099Sjoerg int c; 35012099Sjoerg 35112099Sjoerg if ((c = input()) != EOF && (c &= CHAR_MASK) == '\n') 35212099Sjoerg incline(); 35312099Sjoerg return (c); 35412099Sjoerg} 35512099Sjoerg 35612099Sjoergstatic int 35791592Smarkmhash(const char *s) 35812099Sjoerg{ 35912099Sjoerg u_int v; 36012099Sjoerg const u_char *us; 36112099Sjoerg 36212099Sjoerg v = 0; 36312099Sjoerg for (us = (const u_char *)s; *us != '\0'; us++) { 36412099Sjoerg v = (v << sizeof (v)) + *us; 36512099Sjoerg v ^= v >> (sizeof (v) * CHAR_BIT - sizeof (v)); 36612099Sjoerg } 36712099Sjoerg return (v % HSHSIZ1); 36812099Sjoerg} 36912099Sjoerg 37012099Sjoerg/* 37112099Sjoerg * Lex has found a letter followed by zero or more letters or digits. 37212099Sjoerg * It looks for a symbol in the symbol table with the same name. This 37312099Sjoerg * symbol must either be a keyword or a symbol of the type required by 37412099Sjoerg * symtyp (label, member, tag, ...). 37512099Sjoerg * 37612099Sjoerg * If it is a keyword, the token is returned. In some cases it is described 37712099Sjoerg * more deeply by data written to yylval. 37812099Sjoerg * 37912099Sjoerg * If it is a symbol, T_NAME is returned and the pointer to a sbuf struct 38012099Sjoerg * is stored in yylval. This struct contains the name of the symbol, it's 38112099Sjoerg * length and hash value. If there is already a symbol of the same name 38212099Sjoerg * and type in the symbol table, the sbuf struct also contains a pointer 38312099Sjoerg * to the symbol table entry. 38412099Sjoerg */ 38512099Sjoergstatic int 38691592Smarkmname(void) 38712099Sjoerg{ 38812099Sjoerg char *s; 38912099Sjoerg sbuf_t *sb; 39012099Sjoerg sym_t *sym; 39112099Sjoerg int tok; 39212099Sjoerg 39312099Sjoerg sb = allocsb(); 39412099Sjoerg sb->sb_name = yytext; 39512099Sjoerg sb->sb_len = yyleng; 39612099Sjoerg sb->sb_hash = hash(yytext); 39712099Sjoerg 39812099Sjoerg if ((sym = search(sb)) != NULL && sym->s_keyw) { 39912099Sjoerg freesb(sb); 40012099Sjoerg return (keyw(sym)); 40112099Sjoerg } 40212099Sjoerg 40312099Sjoerg sb->sb_sym = sym; 40412099Sjoerg 40512099Sjoerg if (sym != NULL) { 40612099Sjoerg if (blklev < sym->s_blklev) 407280387Spfg LERROR("name()"); 40812099Sjoerg sb->sb_name = sym->s_name; 40912099Sjoerg sb->sb_len = strlen(sym->s_name); 41012099Sjoerg tok = sym->s_scl == TYPEDEF ? T_TYPENAME : T_NAME; 41112099Sjoerg } else { 41212099Sjoerg s = getblk(yyleng + 1); 41312099Sjoerg (void)memcpy(s, yytext, yyleng + 1); 41412099Sjoerg sb->sb_name = s; 41512099Sjoerg sb->sb_len = yyleng; 41612099Sjoerg tok = T_NAME; 41712099Sjoerg } 41812099Sjoerg 41912099Sjoerg yylval.y_sb = sb; 42012099Sjoerg return (tok); 42112099Sjoerg} 42212099Sjoerg 42312099Sjoergstatic sym_t * 42491592Smarkmsearch(sbuf_t *sb) 42512099Sjoerg{ 42612099Sjoerg sym_t *sym; 42712099Sjoerg 42812099Sjoerg for (sym = symtab[sb->sb_hash]; sym != NULL; sym = sym->s_link) { 42912099Sjoerg if (strcmp(sym->s_name, sb->sb_name) == 0) { 43012099Sjoerg if (sym->s_keyw || sym->s_kind == symtyp) 43112099Sjoerg return (sym); 43212099Sjoerg } 43312099Sjoerg } 43412099Sjoerg 43512099Sjoerg return (NULL); 43612099Sjoerg} 43791592Smarkm 43812099Sjoergstatic int 43991592Smarkmkeyw(sym_t *sym) 44012099Sjoerg{ 44112099Sjoerg int t; 44212099Sjoerg 44312099Sjoerg if ((t = (int)sym->s_value.v_quad) == T_SCLASS) { 44412099Sjoerg yylval.y_scl = sym->s_scl; 44512099Sjoerg } else if (t == T_TYPE || t == T_SOU) { 44612099Sjoerg yylval.y_tspec = sym->s_tspec; 44712099Sjoerg } else if (t == T_QUAL) { 44812099Sjoerg yylval.y_tqual = sym->s_tqual; 44912099Sjoerg } 45012099Sjoerg return (t); 45112099Sjoerg} 45212099Sjoerg 45312099Sjoerg/* 45412099Sjoerg * Convert a string representing an integer into internal representation. 45512099Sjoerg * The value is returned in yylval. icon() (and yylex()) returns T_CON. 45612099Sjoerg */ 45712099Sjoergstatic int 45891592Smarkmicon(int base) 45912099Sjoerg{ 46012099Sjoerg int l_suffix, u_suffix; 46112099Sjoerg int len; 46212099Sjoerg const char *cp; 46312099Sjoerg char c, *eptr; 46412099Sjoerg tspec_t typ; 46591592Smarkm u_long ul = 0; 46691592Smarkm uint64_t uq = 0; 46712099Sjoerg int ansiu; 46812099Sjoerg static tspec_t contypes[2][3] = { 46912099Sjoerg { INT, LONG, QUAD }, 47012099Sjoerg { UINT, ULONG, UQUAD } 47112099Sjoerg }; 47212099Sjoerg 47312099Sjoerg cp = yytext; 47412099Sjoerg len = yyleng; 47512099Sjoerg 47612099Sjoerg /* skip 0x */ 47712099Sjoerg if (base == 16) { 47812099Sjoerg cp += 2; 47912099Sjoerg len -= 2; 48012099Sjoerg } 48112099Sjoerg 48212099Sjoerg /* read suffixes */ 48312099Sjoerg l_suffix = u_suffix = 0; 48412099Sjoerg for ( ; ; ) { 48512099Sjoerg if ((c = cp[len - 1]) == 'l' || c == 'L') { 48612099Sjoerg l_suffix++; 48712099Sjoerg } else if (c == 'u' || c == 'U') { 48812099Sjoerg u_suffix++; 48912099Sjoerg } else { 49012099Sjoerg break; 49112099Sjoerg } 49212099Sjoerg len--; 49312099Sjoerg } 49412099Sjoerg if (l_suffix > 2 || u_suffix > 1) { 49512099Sjoerg /* malformed integer constant */ 49612099Sjoerg warning(251); 49712099Sjoerg if (l_suffix > 2) 49812099Sjoerg l_suffix = 2; 49912099Sjoerg if (u_suffix > 1) 50012099Sjoerg u_suffix = 1; 50112099Sjoerg } 50212099Sjoerg if (tflag && u_suffix != 0) { 50312099Sjoerg /* suffix U is illegal in traditional C */ 50412099Sjoerg warning(97); 50512099Sjoerg } 50612099Sjoerg typ = contypes[u_suffix][l_suffix]; 50712099Sjoerg 50812099Sjoerg errno = 0; 50912099Sjoerg if (l_suffix < 2) { 51012099Sjoerg ul = strtoul(cp, &eptr, base); 51112099Sjoerg } else { 51212099Sjoerg uq = strtouq(cp, &eptr, base); 51312099Sjoerg } 51412099Sjoerg if (eptr != cp + len) 515280387Spfg LERROR("icon()"); 51612099Sjoerg if (errno != 0) 51712099Sjoerg /* integer constant out of range */ 51812099Sjoerg warning(252); 51912099Sjoerg 52012099Sjoerg /* 521286614Spfg * If the value is too big for the current type, we must choose 52212099Sjoerg * another type. 52312099Sjoerg */ 52412099Sjoerg ansiu = 0; 52512099Sjoerg switch (typ) { 52612099Sjoerg case INT: 52712099Sjoerg if (ul <= INT_MAX) { 52812099Sjoerg /* ok */ 52912099Sjoerg } else if (ul <= (unsigned)UINT_MAX && base != 10) { 53012099Sjoerg typ = UINT; 531280387Spfg#if INT_MAX != LONG_MAX 53212099Sjoerg } else if (ul <= LONG_MAX) { 53312099Sjoerg typ = LONG; 534280387Spfg#endif 53512099Sjoerg } else { 53612099Sjoerg typ = ULONG; 53712099Sjoerg } 53812099Sjoerg if (typ == UINT || typ == ULONG) { 53912099Sjoerg if (tflag) { 54012099Sjoerg typ = LONG; 54112099Sjoerg } else if (!sflag) { 54212099Sjoerg /* 54312099Sjoerg * Remember that the constant is unsigned 54412099Sjoerg * only in ANSI C 54512099Sjoerg */ 54612099Sjoerg ansiu = 1; 54712099Sjoerg } 54812099Sjoerg } 54912099Sjoerg break; 55012099Sjoerg case UINT: 55112099Sjoerg if (ul > (u_int)UINT_MAX) 55212099Sjoerg typ = ULONG; 55312099Sjoerg break; 55412099Sjoerg case LONG: 55512099Sjoerg if (ul > LONG_MAX && !tflag) { 55612099Sjoerg typ = ULONG; 55712099Sjoerg if (!sflag) 55812099Sjoerg ansiu = 1; 55912099Sjoerg } 56012099Sjoerg break; 56112099Sjoerg case QUAD: 56212099Sjoerg if (uq > QUAD_MAX && !tflag) { 56312099Sjoerg typ = UQUAD; 56412099Sjoerg if (!sflag) 56512099Sjoerg ansiu = 1; 56612099Sjoerg } 56712099Sjoerg break; 56812099Sjoerg /* LINTED (enumeration values not handled in switch) */ 56991592Smarkm case STRUCT: 57091592Smarkm case VOID: 57191592Smarkm case LDOUBLE: 57291592Smarkm case FUNC: 57391592Smarkm case ARRAY: 57491592Smarkm case PTR: 57591592Smarkm case ENUM: 57691592Smarkm case UNION: 57791592Smarkm case SIGNED: 57891592Smarkm case NOTSPEC: 57991592Smarkm case DOUBLE: 58091592Smarkm case FLOAT: 58191592Smarkm case UQUAD: 58291592Smarkm case ULONG: 58391592Smarkm case USHORT: 58491592Smarkm case SHORT: 58591592Smarkm case UCHAR: 58691592Smarkm case SCHAR: 58791592Smarkm case CHAR: 58891592Smarkm case UNSIGN: 58991592Smarkm break; 59012099Sjoerg } 59112099Sjoerg 59212099Sjoerg if (typ != QUAD && typ != UQUAD) { 59312099Sjoerg if (isutyp(typ)) { 59412099Sjoerg uq = ul; 59512099Sjoerg } else { 59691592Smarkm uq = (int64_t)(long)ul; 59712099Sjoerg } 59812099Sjoerg } 59912099Sjoerg 60091592Smarkm uq = (uint64_t)xsign((int64_t)uq, typ, -1); 60112099Sjoerg 60280284Sobrien if ((yylval.y_val = calloc(1, sizeof(val_t))) == NULL) 60380284Sobrien nomem(); 60480284Sobrien yylval.y_val->v_tspec = typ; 60512099Sjoerg yylval.y_val->v_ansiu = ansiu; 60691592Smarkm yylval.y_val->v_quad = (int64_t)uq; 60712099Sjoerg 60812099Sjoerg return (T_CON); 60912099Sjoerg} 61012099Sjoerg 61112099Sjoerg/* 61212099Sjoerg * Returns 1 if t is a signed type and the value is negative. 61312099Sjoerg * 61412099Sjoerg * len is the number of significant bits. If len is -1, len is set 61512099Sjoerg * to the width of type t. 61612099Sjoerg */ 61712099Sjoergint 61891592Smarkmsign(int64_t q, tspec_t t, int len) 61912099Sjoerg{ 62091592Smarkm 62112099Sjoerg if (t == PTR || isutyp(t)) 62212099Sjoerg return (0); 62312099Sjoerg return (msb(q, t, len)); 62412099Sjoerg} 62512099Sjoerg 62612099Sjoergint 62791592Smarkmmsb(int64_t q, tspec_t t, int len) 62812099Sjoerg{ 62991592Smarkm 63012099Sjoerg if (len <= 0) 63112099Sjoerg len = size(t); 63212099Sjoerg return ((q & qbmasks[len - 1]) != 0); 63312099Sjoerg} 63412099Sjoerg 63512099Sjoerg/* 63612099Sjoerg * Extends the sign of q. 63712099Sjoerg */ 63891592Smarkmint64_t 63991592Smarkmxsign(int64_t q, tspec_t t, int len) 64012099Sjoerg{ 64191592Smarkm 64212099Sjoerg if (len <= 0) 64312099Sjoerg len = size(t); 64412099Sjoerg 64512099Sjoerg if (t == PTR || isutyp(t) || !sign(q, t, len)) { 64612099Sjoerg q &= qlmasks[len]; 64712099Sjoerg } else { 64812099Sjoerg q |= qumasks[len]; 64912099Sjoerg } 65012099Sjoerg return (q); 65112099Sjoerg} 65212099Sjoerg 65312099Sjoerg/* 65412099Sjoerg * Convert a string representing a floating point value into its interal 65512099Sjoerg * representation. Type and value are returned in yylval. fcon() 65612099Sjoerg * (and yylex()) returns T_CON. 65712099Sjoerg * XXX Currently it is not possible to convert constants of type 65891592Smarkm * long double which are greater than DBL_MAX. 65912099Sjoerg */ 66012099Sjoergstatic int 66191592Smarkmfcon(void) 66212099Sjoerg{ 66312099Sjoerg const char *cp; 66412099Sjoerg int len; 66512099Sjoerg tspec_t typ; 66612099Sjoerg char c, *eptr; 66712099Sjoerg double d; 66891592Smarkm float f = 0; 66912099Sjoerg 67012099Sjoerg cp = yytext; 67112099Sjoerg len = yyleng; 67212099Sjoerg 67312099Sjoerg if ((c = cp[len - 1]) == 'f' || c == 'F') { 67412099Sjoerg typ = FLOAT; 67512099Sjoerg len--; 67612099Sjoerg } else if (c == 'l' || c == 'L') { 67712099Sjoerg typ = LDOUBLE; 67812099Sjoerg len--; 67912099Sjoerg } else { 68012099Sjoerg typ = DOUBLE; 68112099Sjoerg } 68212099Sjoerg 68312099Sjoerg if (tflag && typ != DOUBLE) { 68412099Sjoerg /* suffixes F and L are illegal in traditional C */ 68512099Sjoerg warning(98); 68612099Sjoerg } 68712099Sjoerg 68812099Sjoerg errno = 0; 68912099Sjoerg d = strtod(cp, &eptr); 690280387Spfg if (eptr != cp + len) { 691280387Spfg switch (*eptr) { 692280387Spfg /* 693280387Spfg * XXX: non-native non-current strtod() may not handle hex 694280387Spfg * floats, ignore the rest if we find traces of hex float 695280387Spfg * syntax... 696280387Spfg */ 697280387Spfg case 'p': 698280387Spfg case 'P': 699280387Spfg case 'x': 700280387Spfg case 'X': 701280387Spfg d = 0; 702280387Spfg errno = 0; 703280387Spfg break; 704280387Spfg default: 705280387Spfg LERROR("fcon()"); 706280387Spfg } 707280387Spfg } 70812099Sjoerg if (errno != 0) 70912099Sjoerg /* floating-point constant out of range */ 71012099Sjoerg warning(248); 71112099Sjoerg 71212099Sjoerg if (typ == FLOAT) { 71312099Sjoerg f = (float)d; 71491592Smarkm if (!finite(f)) { 71512099Sjoerg /* floating-point constant out of range */ 71612099Sjoerg warning(248); 71712099Sjoerg f = f > 0 ? FLT_MAX : -FLT_MAX; 71812099Sjoerg } 71912099Sjoerg } 72012099Sjoerg 72180284Sobrien if ((yylval.y_val = calloc(1, sizeof (val_t))) == NULL) 72280284Sobrien nomem(); 72380284Sobrien yylval.y_val->v_tspec = typ; 72412099Sjoerg if (typ == FLOAT) { 72512099Sjoerg yylval.y_val->v_ldbl = f; 72612099Sjoerg } else { 72712099Sjoerg yylval.y_val->v_ldbl = d; 72812099Sjoerg } 72912099Sjoerg 73012099Sjoerg return (T_CON); 73112099Sjoerg} 73212099Sjoerg 73312099Sjoergstatic int 73491592Smarkmoperator(int t, op_t o) 73512099Sjoerg{ 73691592Smarkm 73712099Sjoerg yylval.y_op = o; 73812099Sjoerg return (t); 73912099Sjoerg} 74012099Sjoerg 74112099Sjoerg/* 74212099Sjoerg * Called if lex found a leading \'. 74312099Sjoerg */ 74412099Sjoergstatic int 74591592Smarkmccon(void) 74612099Sjoerg{ 74712099Sjoerg int n, val, c; 74812099Sjoerg char cv; 74912099Sjoerg 75012099Sjoerg n = 0; 75112099Sjoerg val = 0; 75212099Sjoerg while ((c = getescc('\'')) >= 0) { 75312099Sjoerg val = (val << CHAR_BIT) + c; 75412099Sjoerg n++; 75512099Sjoerg } 75612099Sjoerg if (c == -2) { 75712099Sjoerg /* unterminated character constant */ 75812099Sjoerg error(253); 75912099Sjoerg } else { 76012099Sjoerg if (n > sizeof (int) || (n > 1 && (pflag || hflag))) { 76112099Sjoerg /* too many characters in character constant */ 76212099Sjoerg error(71); 76312099Sjoerg } else if (n > 1) { 76412099Sjoerg /* multi-character character constant */ 76512099Sjoerg warning(294); 76612099Sjoerg } else if (n == 0) { 76712099Sjoerg /* empty character constant */ 76812099Sjoerg error(73); 76912099Sjoerg } 77012099Sjoerg } 77112099Sjoerg if (n == 1) { 77212099Sjoerg cv = (char)val; 77312099Sjoerg val = cv; 77412099Sjoerg } 77591592Smarkm 77691592Smarkm yylval.y_val = xcalloc(1, sizeof (val_t)); 77712099Sjoerg yylval.y_val->v_tspec = INT; 77812099Sjoerg yylval.y_val->v_quad = val; 77912099Sjoerg 78012099Sjoerg return (T_CON); 78112099Sjoerg} 78212099Sjoerg 78312099Sjoerg/* 78412099Sjoerg * Called if lex found a leading L\' 78512099Sjoerg */ 78612099Sjoergstatic int 78791592Smarkmwccon(void) 78812099Sjoerg{ 78912099Sjoerg static char buf[MB_LEN_MAX + 1]; 79012099Sjoerg int i, c; 79112099Sjoerg wchar_t wc; 79212099Sjoerg 79312099Sjoerg i = 0; 79412099Sjoerg while ((c = getescc('\'')) >= 0) { 79512099Sjoerg if (i < MB_CUR_MAX) 79612099Sjoerg buf[i] = (char)c; 79712099Sjoerg i++; 79812099Sjoerg } 79912099Sjoerg 80012099Sjoerg wc = 0; 80112099Sjoerg 80212099Sjoerg if (c == -2) { 80312099Sjoerg /* unterminated character constant */ 80412099Sjoerg error(253); 80512099Sjoerg } else if (c == 0) { 80612099Sjoerg /* empty character constant */ 80712099Sjoerg error(73); 80812099Sjoerg } else { 80912099Sjoerg if (i > MB_CUR_MAX) { 81012099Sjoerg i = MB_CUR_MAX; 81112099Sjoerg /* too many characters in character constant */ 81212099Sjoerg error(71); 81312099Sjoerg } else { 81412099Sjoerg buf[i] = '\0'; 81512099Sjoerg (void)mbtowc(NULL, NULL, 0); 81612099Sjoerg if (mbtowc(&wc, buf, MB_CUR_MAX) < 0) 81712099Sjoerg /* invalid multibyte character */ 81812099Sjoerg error(291); 81912099Sjoerg } 82012099Sjoerg } 82112099Sjoerg 82280284Sobrien if ((yylval.y_val = calloc(1, sizeof (val_t))) == NULL) 82380284Sobrien nomem(); 82412099Sjoerg yylval.y_val->v_tspec = WCHAR; 82512099Sjoerg yylval.y_val->v_quad = wc; 82612099Sjoerg 82712099Sjoerg return (T_CON); 82812099Sjoerg} 82912099Sjoerg 83012099Sjoerg/* 83112099Sjoerg * Read a character which is part of a character constant or of a string 83212099Sjoerg * and handle escapes. 83312099Sjoerg * 83412099Sjoerg * The Argument is the character which delimits the character constant or 83512099Sjoerg * string. 83612099Sjoerg * 83712099Sjoerg * Returns -1 if the end of the character constant or string is reached, 83891592Smarkm * -2 if the EOF is reached, and the character otherwise. 83912099Sjoerg */ 84012099Sjoergstatic int 84191592Smarkmgetescc(int d) 84212099Sjoerg{ 84312099Sjoerg static int pbc = -1; 84412099Sjoerg int n, c, v; 84512099Sjoerg 84612099Sjoerg if (pbc == -1) { 84712099Sjoerg c = inpc(); 84812099Sjoerg } else { 84912099Sjoerg c = pbc; 85012099Sjoerg pbc = -1; 85112099Sjoerg } 85212099Sjoerg if (c == d) 85312099Sjoerg return (-1); 85412099Sjoerg switch (c) { 85512099Sjoerg case '\n': 85691592Smarkm if (tflag) { 85791592Smarkm /* newline in string or char constant */ 85891592Smarkm error(254); 85991592Smarkm return (-2); 86091592Smarkm } 86191592Smarkm return (c); 86212099Sjoerg case EOF: 86312099Sjoerg return (-2); 86412099Sjoerg case '\\': 86512099Sjoerg switch (c = inpc()) { 86612099Sjoerg case '"': 86712099Sjoerg if (tflag && d == '\'') 86812099Sjoerg /* \" inside character constant undef. ... */ 86912099Sjoerg warning(262); 87012099Sjoerg return ('"'); 87112099Sjoerg case '\'': 87212099Sjoerg return ('\''); 87312099Sjoerg case '?': 87412099Sjoerg if (tflag) 87512099Sjoerg /* \? undefined in traditional C */ 87612099Sjoerg warning(263); 87712099Sjoerg return ('?'); 87812099Sjoerg case '\\': 87912099Sjoerg return ('\\'); 88012099Sjoerg case 'a': 88112099Sjoerg if (tflag) 88212099Sjoerg /* \a undefined in traditional C */ 88312099Sjoerg warning(81); 88412099Sjoerg return ('\a'); 88512099Sjoerg case 'b': 88612099Sjoerg return ('\b'); 88712099Sjoerg case 'f': 88812099Sjoerg return ('\f'); 88912099Sjoerg case 'n': 89012099Sjoerg return ('\n'); 89112099Sjoerg case 'r': 89212099Sjoerg return ('\r'); 89312099Sjoerg case 't': 89412099Sjoerg return ('\t'); 89512099Sjoerg case 'v': 89612099Sjoerg if (tflag) 89712099Sjoerg /* \v undefined in traditional C */ 89812099Sjoerg warning(264); 89912099Sjoerg return ('\v'); 90012099Sjoerg case '8': case '9': 90112099Sjoerg /* bad octal digit %c */ 90212099Sjoerg warning(77, c); 90312099Sjoerg /* FALLTHROUGH */ 90412099Sjoerg case '0': case '1': case '2': case '3': 90512099Sjoerg case '4': case '5': case '6': case '7': 90612099Sjoerg n = 3; 90712099Sjoerg v = 0; 90812099Sjoerg do { 90912099Sjoerg v = (v << 3) + (c - '0'); 91012099Sjoerg c = inpc(); 91112099Sjoerg } while (--n && isdigit(c) && (tflag || c <= '7')); 91212099Sjoerg if (tflag && n > 0 && isdigit(c)) 91312099Sjoerg /* bad octal digit %c */ 91412099Sjoerg warning(77, c); 91512099Sjoerg pbc = c; 91612099Sjoerg if (v > UCHAR_MAX) { 91712099Sjoerg /* character escape does not fit in char. */ 91812099Sjoerg warning(76); 91912099Sjoerg v &= CHAR_MASK; 92012099Sjoerg } 92112099Sjoerg return (v); 92212099Sjoerg case 'x': 92312099Sjoerg if (tflag) 92412099Sjoerg /* \x undefined in traditional C */ 92512099Sjoerg warning(82); 92612099Sjoerg v = 0; 92712099Sjoerg n = 0; 92812099Sjoerg while ((c = inpc()) >= 0 && isxdigit(c)) { 92912099Sjoerg c = isdigit(c) ? 93012099Sjoerg c - '0' : toupper(c) - 'A' + 10; 93112099Sjoerg v = (v << 4) + c; 93212099Sjoerg if (n >= 0) { 93312099Sjoerg if ((v & ~CHAR_MASK) != 0) { 93412099Sjoerg /* overflow in hex escape */ 93512099Sjoerg warning(75); 93612099Sjoerg n = -1; 93712099Sjoerg } else { 93812099Sjoerg n++; 93912099Sjoerg } 94012099Sjoerg } 94112099Sjoerg } 94212099Sjoerg pbc = c; 94312099Sjoerg if (n == 0) { 94412099Sjoerg /* no hex digits follow \x */ 94512099Sjoerg error(74); 94612099Sjoerg } if (n == -1) { 94712099Sjoerg v &= CHAR_MASK; 94812099Sjoerg } 94912099Sjoerg return (v); 95012099Sjoerg case '\n': 95112099Sjoerg return (getescc(d)); 95212099Sjoerg case EOF: 95312099Sjoerg return (-2); 95412099Sjoerg default: 95512099Sjoerg if (isprint(c)) { 95612099Sjoerg /* dubious escape \%c */ 95712099Sjoerg warning(79, c); 95812099Sjoerg } else { 95912099Sjoerg /* dubious escape \%o */ 96012099Sjoerg warning(80, c); 96112099Sjoerg } 96212099Sjoerg } 96312099Sjoerg } 96412099Sjoerg return (c); 96512099Sjoerg} 96612099Sjoerg 96712099Sjoerg/* 96812099Sjoerg * Called for preprocessor directives. Currently implemented are: 96912099Sjoerg * # lineno 97012099Sjoerg * # lineno "filename" 97112099Sjoerg */ 97212099Sjoergstatic void 97391592Smarkmdirective(void) 97412099Sjoerg{ 97512099Sjoerg const char *cp, *fn; 97612099Sjoerg char c, *eptr; 97712099Sjoerg size_t fnl; 97812099Sjoerg long ln; 97912099Sjoerg static int first = 1; 98012099Sjoerg 98112099Sjoerg /* Go to first non-whitespace after # */ 98291592Smarkm for (cp = yytext + 1; (c = *cp) == ' ' || c == '\t'; cp++) 98391592Smarkm continue; 98412099Sjoerg 98591592Smarkm if (!isdigit((unsigned char)c)) { 98612099Sjoerg error: 98712099Sjoerg /* undefined or invalid # directive */ 98812099Sjoerg warning(255); 98912099Sjoerg return; 99012099Sjoerg } 99112099Sjoerg ln = strtol(--cp, &eptr, 10); 99212099Sjoerg if (cp == eptr) 99312099Sjoerg goto error; 99412099Sjoerg if ((c = *(cp = eptr)) != ' ' && c != '\t' && c != '\0') 99512099Sjoerg goto error; 99691592Smarkm while ((c = *cp++) == ' ' || c == '\t') 99791592Smarkm continue; 99812099Sjoerg if (c != '\0') { 99912099Sjoerg if (c != '"') 100012099Sjoerg goto error; 100112099Sjoerg fn = cp; 100212099Sjoerg while ((c = *cp) != '"' && c != '\0') 100312099Sjoerg cp++; 100412099Sjoerg if (c != '"') 100512099Sjoerg goto error; 100612099Sjoerg if ((fnl = cp++ - fn) > PATH_MAX) 100712099Sjoerg goto error; 100891592Smarkm while ((c = *cp++) == ' ' || c == '\t') 100991592Smarkm continue; 101012099Sjoerg#if 0 101112099Sjoerg if (c != '\0') 101212099Sjoerg warning("extra character(s) after directive"); 101312099Sjoerg#endif 101491592Smarkm 101591592Smarkm /* empty string means stdin */ 101691592Smarkm if (fnl == 0) { 101791592Smarkm fn = "{standard input}"; 101891592Smarkm fnl = 16; /* strlen (fn) */ 101991592Smarkm } 102012099Sjoerg curr_pos.p_file = fnnalloc(fn, fnl); 102112099Sjoerg /* 102212099Sjoerg * If this is the first directive, the name is the name 102312099Sjoerg * of the C source file as specified at the command line. 102412099Sjoerg * It is written to the output file. 102512099Sjoerg */ 102612099Sjoerg if (first) { 102712099Sjoerg csrc_pos.p_file = curr_pos.p_file; 102812099Sjoerg outsrc(curr_pos.p_file); 102912099Sjoerg first = 0; 103012099Sjoerg } 103112099Sjoerg } 103212099Sjoerg curr_pos.p_line = (int)ln - 1; 103391592Smarkm curr_pos.p_uniq = 0; 103491592Smarkm if (curr_pos.p_file == csrc_pos.p_file) { 103512099Sjoerg csrc_pos.p_line = (int)ln - 1; 103691592Smarkm csrc_pos.p_uniq = 0; 103791592Smarkm } 103812099Sjoerg} 103912099Sjoerg 104012099Sjoerg/* 104112099Sjoerg * Handle lint comments. Following comments are currently understood: 104212099Sjoerg * ARGSUSEDn 104391592Smarkm * BITFIELDTYPE 104412099Sjoerg * CONSTCOND CONSTANTCOND CONSTANTCONDITION 104512099Sjoerg * FALLTHRU FALLTHROUGH 104612099Sjoerg * LINTLIBRARY 104712099Sjoerg * LINTED NOSTRICT 104812099Sjoerg * LONGLONG 104912099Sjoerg * NOTREACHED 105012099Sjoerg * PRINTFLIKEn 105112099Sjoerg * PROTOLIB 105212099Sjoerg * SCANFLIKEn 105312099Sjoerg * VARARGSn 105412099Sjoerg * If one of this comments is recognized, the arguments, if any, are 105512099Sjoerg * parsed and a function which handles this comment is called. 105612099Sjoerg */ 105712099Sjoergstatic void 105891592Smarkmcomment(void) 105912099Sjoerg{ 106012099Sjoerg int c, lc; 106112099Sjoerg static struct { 106212099Sjoerg const char *keywd; 106312099Sjoerg int arg; 106491592Smarkm void (*func)(int); 106512099Sjoerg } keywtab[] = { 106612099Sjoerg { "ARGSUSED", 1, argsused }, 106791592Smarkm { "BITFIELDTYPE", 0, bitfieldtype }, 106812099Sjoerg { "CONSTCOND", 0, constcond }, 106912099Sjoerg { "CONSTANTCOND", 0, constcond }, 107012099Sjoerg { "CONSTANTCONDITION", 0, constcond }, 107112099Sjoerg { "FALLTHRU", 0, fallthru }, 107212099Sjoerg { "FALLTHROUGH", 0, fallthru }, 107312099Sjoerg { "LINTLIBRARY", 0, lintlib }, 107412099Sjoerg { "LINTED", 0, linted }, 107512099Sjoerg { "LONGLONG", 0, longlong }, 107612099Sjoerg { "NOSTRICT", 0, linted }, 107712099Sjoerg { "NOTREACHED", 0, notreach }, 107812099Sjoerg { "PRINTFLIKE", 1, printflike }, 107912099Sjoerg { "PROTOLIB", 1, protolib }, 108012099Sjoerg { "SCANFLIKE", 1, scanflike }, 108112099Sjoerg { "VARARGS", 1, varargs }, 108212099Sjoerg }; 108312099Sjoerg char keywd[32]; 108412099Sjoerg char arg[32]; 108512099Sjoerg int l, i, a; 108612099Sjoerg int eoc; 108712099Sjoerg 108812099Sjoerg eoc = 0; 108912099Sjoerg 109012099Sjoerg /* Skip white spaces after the start of the comment */ 109191592Smarkm while ((c = inpc()) != EOF && isspace(c)) 109291592Smarkm continue; 109312099Sjoerg 109412099Sjoerg /* Read the potential keyword to keywd */ 109512099Sjoerg l = 0; 109612099Sjoerg while (c != EOF && isupper(c) && l < sizeof (keywd) - 1) { 109712099Sjoerg keywd[l++] = (char)c; 109812099Sjoerg c = inpc(); 109912099Sjoerg } 110012099Sjoerg keywd[l] = '\0'; 110112099Sjoerg 110212099Sjoerg /* look for the keyword */ 110312099Sjoerg for (i = 0; i < sizeof (keywtab) / sizeof (keywtab[0]); i++) { 110412099Sjoerg if (strcmp(keywtab[i].keywd, keywd) == 0) 110512099Sjoerg break; 110612099Sjoerg } 110712099Sjoerg if (i == sizeof (keywtab) / sizeof (keywtab[0])) 110812099Sjoerg goto skip_rest; 110912099Sjoerg 111012099Sjoerg /* skip white spaces after the keyword */ 111112099Sjoerg while (c != EOF && isspace(c)) 111212099Sjoerg c = inpc(); 111312099Sjoerg 111412099Sjoerg /* read the argument, if the keyword accepts one and there is one */ 111512099Sjoerg l = 0; 111612099Sjoerg if (keywtab[i].arg) { 111712099Sjoerg while (c != EOF && isdigit(c) && l < sizeof (arg) - 1) { 111812099Sjoerg arg[l++] = (char)c; 111912099Sjoerg c = inpc(); 112012099Sjoerg } 112112099Sjoerg } 112212099Sjoerg arg[l] = '\0'; 112312099Sjoerg a = l != 0 ? atoi(arg) : -1; 112412099Sjoerg 112512099Sjoerg /* skip white spaces after the argument */ 112612099Sjoerg while (c != EOF && isspace(c)) 112712099Sjoerg c = inpc(); 112812099Sjoerg 112912099Sjoerg if (c != '*' || (c = inpc()) != '/') { 113012099Sjoerg if (keywtab[i].func != linted) 113112099Sjoerg /* extra characters in lint comment */ 113212099Sjoerg warning(257); 113312099Sjoerg } else { 113412099Sjoerg /* 113512099Sjoerg * remember that we have already found the end of the 113612099Sjoerg * comment 113712099Sjoerg */ 113812099Sjoerg eoc = 1; 113912099Sjoerg } 114012099Sjoerg 114112099Sjoerg if (keywtab[i].func != NULL) 114212099Sjoerg (*keywtab[i].func)(a); 114312099Sjoerg 114412099Sjoerg skip_rest: 114512099Sjoerg while (!eoc) { 114612099Sjoerg lc = c; 114712099Sjoerg if ((c = inpc()) == EOF) { 114812099Sjoerg /* unterminated comment */ 114912099Sjoerg error(256); 115012099Sjoerg break; 115112099Sjoerg } 115212099Sjoerg if (lc == '*' && c == '/') 115312099Sjoerg eoc = 1; 115412099Sjoerg } 115512099Sjoerg} 115612099Sjoerg 115712099Sjoerg/* 115891592Smarkm * Handle // style comments 115991592Smarkm */ 116091592Smarkmstatic void 116191592Smarkmslashslashcomment(void) 116291592Smarkm{ 116391592Smarkm int c; 116491592Smarkm 1165280387Spfg if (!Sflag && !gflag) 116691592Smarkm /* // comments only supported in C99 */ 116791592Smarkm (void)gnuism(312, tflag ? "traditional" : "ANSI"); 116891592Smarkm 116991592Smarkm while ((c = inpc()) != EOF && c != '\n') 117091592Smarkm continue; 117191592Smarkm} 117291592Smarkm 117391592Smarkm/* 117412099Sjoerg * Clear flags for lint comments LINTED, LONGLONG and CONSTCOND. 117512099Sjoerg * clrwflgs() is called after function definitions and global and 117612099Sjoerg * local declarations and definitions. It is also called between 117712099Sjoerg * the controlling expression and the body of control statements 117812099Sjoerg * (if, switch, for, while). 117912099Sjoerg */ 118012099Sjoergvoid 118191592Smarkmclrwflgs(void) 118212099Sjoerg{ 118391592Smarkm 118412099Sjoerg nowarn = 0; 118512099Sjoerg quadflg = 0; 118612099Sjoerg ccflg = 0; 118712099Sjoerg} 118812099Sjoerg 118912099Sjoerg/* 119012099Sjoerg * Strings are stored in a dynamically alloceted buffer and passed 119112099Sjoerg * in yylval.y_xstrg to the parser. The parser or the routines called 119212099Sjoerg * by the parser are responsible for freeing this buffer. 119312099Sjoerg */ 119412099Sjoergstatic int 119591592Smarkmstring(void) 119612099Sjoerg{ 119712099Sjoerg u_char *s; 119812099Sjoerg int c; 119912099Sjoerg size_t len, max; 120012099Sjoerg strg_t *strg; 120112099Sjoerg 120280284Sobrien if ((s = malloc(max = 64)) == NULL) 120380284Sobrien nomem(); 120412099Sjoerg 120512099Sjoerg len = 0; 120612099Sjoerg while ((c = getescc('"')) >= 0) { 120712099Sjoerg /* +1 to reserve space for a trailing NUL character */ 120812099Sjoerg if (len + 1 == max) 120980284Sobrien if ((s = realloc(s, max *= 2)) == NULL) 121080284Sobrien nomem(); 121112099Sjoerg s[len++] = (char)c; 121212099Sjoerg } 121312099Sjoerg s[len] = '\0'; 121412099Sjoerg if (c == -2) 121512099Sjoerg /* unterminated string constant */ 121612099Sjoerg error(258); 121712099Sjoerg 121880284Sobrien if ((strg = calloc(1, sizeof (strg_t))) == NULL) 121980284Sobrien nomem(); 122012099Sjoerg strg->st_tspec = CHAR; 122112099Sjoerg strg->st_len = len; 122212099Sjoerg strg->st_cp = s; 122312099Sjoerg 122412099Sjoerg yylval.y_strg = strg; 122512099Sjoerg return (T_STRING); 122612099Sjoerg} 122712099Sjoerg 122812099Sjoergstatic int 122991592Smarkmwcstrg(void) 123012099Sjoerg{ 123112099Sjoerg char *s; 123212099Sjoerg int c, i, n, wi; 123312099Sjoerg size_t len, max, wlen; 123412099Sjoerg wchar_t *ws; 123512099Sjoerg strg_t *strg; 123612099Sjoerg 123780284Sobrien if ((s = malloc(max = 64)) == NULL) 123880284Sobrien nomem(); 123912099Sjoerg len = 0; 124012099Sjoerg while ((c = getescc('"')) >= 0) { 124112099Sjoerg /* +1 to save space for a trailing NUL character */ 124212099Sjoerg if (len + 1 >= max) 124380284Sobrien if ((s = realloc(s, max *= 2)) == NULL) 124480284Sobrien nomem(); 124512099Sjoerg s[len++] = (char)c; 124612099Sjoerg } 124712099Sjoerg s[len] = '\0'; 124812099Sjoerg if (c == -2) 124912099Sjoerg /* unterminated string constant */ 125012099Sjoerg error(258); 125112099Sjoerg 125212099Sjoerg /* get length of wide character string */ 125312099Sjoerg (void)mblen(NULL, 0); 125412099Sjoerg for (i = 0, wlen = 0; i < len; i += n, wlen++) { 125512099Sjoerg if ((n = mblen(&s[i], MB_CUR_MAX)) == -1) { 125612099Sjoerg /* invalid multibyte character */ 125712099Sjoerg error(291); 125812099Sjoerg break; 125912099Sjoerg } 126012099Sjoerg if (n == 0) 126112099Sjoerg n = 1; 126212099Sjoerg } 126312099Sjoerg 126480284Sobrien if ((ws = malloc((wlen + 1) * sizeof (wchar_t))) == NULL) 126580284Sobrien nomem(); 126612099Sjoerg 126712099Sjoerg /* convert from multibyte to wide char */ 126812099Sjoerg (void)mbtowc(NULL, NULL, 0); 126912099Sjoerg for (i = 0, wi = 0; i < len; i += n, wi++) { 127012099Sjoerg if ((n = mbtowc(&ws[wi], &s[i], MB_CUR_MAX)) == -1) 127112099Sjoerg break; 127212099Sjoerg if (n == 0) 127312099Sjoerg n = 1; 127412099Sjoerg } 127512099Sjoerg ws[wi] = 0; 127612099Sjoerg free(s); 127712099Sjoerg 127880284Sobrien if ((strg = calloc(1, sizeof (strg_t))) == NULL) 127980284Sobrien nomem(); 128012099Sjoerg strg->st_tspec = WCHAR; 128112099Sjoerg strg->st_len = wlen; 128212099Sjoerg strg->st_wcp = ws; 128312099Sjoerg 128412099Sjoerg yylval.y_strg = strg; 128512099Sjoerg return (T_STRING); 128612099Sjoerg} 128712099Sjoerg 128812099Sjoerg/* 128912099Sjoerg * As noted above the scanner does not create new symbol table entries 129012099Sjoerg * for symbols it cannot find in the symbol table. This is to avoid 129112099Sjoerg * putting undeclared symbols into the symbol table if a syntax error 129212099Sjoerg * occurs. 129312099Sjoerg * 129412099Sjoerg * getsym() is called as soon as it is probably ok to put the symbol to 129512099Sjoerg * the symbol table. This does not mean that it is not possible that 129612099Sjoerg * symbols are put to the symbol table which are than not completely 129712099Sjoerg * declared due to syntax errors. To avoid too many problems in this 129812099Sjoerg * case symbols get type int in getsym(). 129912099Sjoerg * 130012099Sjoerg * XXX calls to getsym() should be delayed until decl1*() is called 130112099Sjoerg */ 130212099Sjoergsym_t * 130391592Smarkmgetsym(sbuf_t *sb) 130412099Sjoerg{ 130512099Sjoerg dinfo_t *di; 130612099Sjoerg char *s; 130712099Sjoerg sym_t *sym; 130812099Sjoerg 130912099Sjoerg sym = sb->sb_sym; 131012099Sjoerg 131112099Sjoerg /* 131212099Sjoerg * During member declaration it is possible that name() looked 131312099Sjoerg * for symbols of type FVFT, although it should have looked for 131412099Sjoerg * symbols of type FTAG. Same can happen for labels. Both cases 131512099Sjoerg * are compensated here. 131612099Sjoerg */ 131712099Sjoerg if (symtyp == FMOS || symtyp == FLAB) { 131812099Sjoerg if (sym == NULL || sym->s_kind == FVFT) 131912099Sjoerg sym = search(sb); 132012099Sjoerg } 132112099Sjoerg 132212099Sjoerg if (sym != NULL) { 132312099Sjoerg if (sym->s_kind != symtyp) 1324280387Spfg LERROR("storesym()"); 132512099Sjoerg symtyp = FVFT; 132612099Sjoerg freesb(sb); 132712099Sjoerg return (sym); 132812099Sjoerg } 132912099Sjoerg 133012099Sjoerg /* create a new symbol table entry */ 133112099Sjoerg 133212099Sjoerg /* labels must always be allocated at level 1 (outhermost block) */ 133312099Sjoerg if (symtyp == FLAB) { 133412099Sjoerg sym = getlblk(1, sizeof (sym_t)); 133512099Sjoerg s = getlblk(1, sb->sb_len + 1); 133612099Sjoerg (void)memcpy(s, sb->sb_name, sb->sb_len + 1); 133712099Sjoerg sym->s_name = s; 133812099Sjoerg sym->s_blklev = 1; 133912099Sjoerg di = dcs; 134012099Sjoerg while (di->d_nxt != NULL && di->d_nxt->d_nxt != NULL) 134112099Sjoerg di = di->d_nxt; 134212099Sjoerg if (di->d_ctx != AUTO) 1343280387Spfg LERROR("storesym()"); 134412099Sjoerg } else { 134512099Sjoerg sym = getblk(sizeof (sym_t)); 134612099Sjoerg sym->s_name = sb->sb_name; 134712099Sjoerg sym->s_blklev = blklev; 134812099Sjoerg di = dcs; 134912099Sjoerg } 135012099Sjoerg 135191592Smarkm UNIQUE_CURR_POS(sym->s_dpos); 135212099Sjoerg if ((sym->s_kind = symtyp) != FLAB) 135312099Sjoerg sym->s_type = gettyp(INT); 135412099Sjoerg 135512099Sjoerg symtyp = FVFT; 135612099Sjoerg 135712099Sjoerg if ((sym->s_link = symtab[sb->sb_hash]) != NULL) 135812099Sjoerg symtab[sb->sb_hash]->s_rlink = &sym->s_link; 135912099Sjoerg (symtab[sb->sb_hash] = sym)->s_rlink = &symtab[sb->sb_hash]; 136012099Sjoerg 136112099Sjoerg *di->d_ldlsym = sym; 136212099Sjoerg di->d_ldlsym = &sym->s_dlnxt; 136312099Sjoerg 136412099Sjoerg freesb(sb); 136512099Sjoerg return (sym); 136612099Sjoerg} 136712099Sjoerg 136812099Sjoerg/* 1369280387Spfg * Construct a temporary symbol. The symbol starts with a digit, so that 1370280387Spfg * it is illegal. 1371280387Spfg */ 1372280387Spfgsym_t * 1373280387Spfgmktempsym(type_t *t) 1374280387Spfg{ 1375280387Spfg static int n = 0; 1376280387Spfg int h; 1377280387Spfg char *s = getlblk(blklev, 64); 1378280387Spfg sym_t *sym = getblk(sizeof (sym_t)); 1379280387Spfg 1380280387Spfg (void)snprintf(s, 64, "%.8d_tmp", n++); 1381280387Spfg h = hash(s); 1382280387Spfg 1383280387Spfg sym->s_name = s; 1384280387Spfg sym->s_type = t; 1385280387Spfg sym->s_blklev = blklev; 1386280387Spfg sym->s_scl = AUTO; 1387280387Spfg sym->s_kind = FVFT; 1388280387Spfg sym->s_used = 1; 1389280387Spfg sym->s_set = 1; 1390280387Spfg 1391280387Spfg if ((sym->s_link = symtab[h]) != NULL) 1392280387Spfg symtab[h]->s_rlink = &sym->s_link; 1393280387Spfg (symtab[h] = sym)->s_rlink = &symtab[h]; 1394280387Spfg 1395280387Spfg *dcs->d_ldlsym = sym; 1396280387Spfg dcs->d_ldlsym = &sym->s_dlnxt; 1397280387Spfg 1398280387Spfg return sym; 1399280387Spfg} 1400280387Spfg 1401280387Spfg/* 140212099Sjoerg * Remove a symbol forever from the symbol table. s_blklev 140312099Sjoerg * is set to -1 to avoid that the symbol will later be put 140412099Sjoerg * back to the symbol table. 140512099Sjoerg */ 140612099Sjoergvoid 140791592Smarkmrmsym(sym_t *sym) 140812099Sjoerg{ 140991592Smarkm 141012099Sjoerg if ((*sym->s_rlink = sym->s_link) != NULL) 141112099Sjoerg sym->s_link->s_rlink = sym->s_rlink; 141212099Sjoerg sym->s_blklev = -1; 141312099Sjoerg sym->s_link = NULL; 141412099Sjoerg} 141512099Sjoerg 141612099Sjoerg/* 141712099Sjoerg * Remove a list of symbols declared at one level from the symbol 141812099Sjoerg * table. 141912099Sjoerg */ 142012099Sjoergvoid 142191592Smarkmrmsyms(sym_t *syms) 142212099Sjoerg{ 142312099Sjoerg sym_t *sym; 142412099Sjoerg 142512099Sjoerg for (sym = syms; sym != NULL; sym = sym->s_dlnxt) { 142612099Sjoerg if (sym->s_blklev != -1) { 142712099Sjoerg if ((*sym->s_rlink = sym->s_link) != NULL) 142812099Sjoerg sym->s_link->s_rlink = sym->s_rlink; 142912099Sjoerg sym->s_link = NULL; 143012099Sjoerg sym->s_rlink = NULL; 143112099Sjoerg } 143212099Sjoerg } 143312099Sjoerg} 143412099Sjoerg 143512099Sjoerg/* 143612099Sjoerg * Put a symbol into the symbol table 143712099Sjoerg */ 143812099Sjoergvoid 143991592Smarkminssym(int bl, sym_t *sym) 144012099Sjoerg{ 144112099Sjoerg int h; 144212099Sjoerg 144312099Sjoerg h = hash(sym->s_name); 144412099Sjoerg if ((sym->s_link = symtab[h]) != NULL) 144512099Sjoerg symtab[h]->s_rlink = &sym->s_link; 144612099Sjoerg (symtab[h] = sym)->s_rlink = &symtab[h]; 144712099Sjoerg sym->s_blklev = bl; 144812099Sjoerg if (sym->s_link != NULL && sym->s_blklev < sym->s_link->s_blklev) 1449280387Spfg LERROR("inssym()"); 145012099Sjoerg} 145112099Sjoerg 145212099Sjoerg/* 145312099Sjoerg * Called at level 0 after syntax errors 145412099Sjoerg * Removes all symbols which are not declared at level 0 from the 145512099Sjoerg * symbol table. Also frees all memory which is not associated with 145612099Sjoerg * level 0. 145712099Sjoerg */ 145812099Sjoergvoid 145991592Smarkmcleanup(void) 146012099Sjoerg{ 146112099Sjoerg sym_t *sym, *nsym; 146212099Sjoerg int i; 146312099Sjoerg 146412099Sjoerg for (i = 0; i < HSHSIZ1; i++) { 146512099Sjoerg for (sym = symtab[i]; sym != NULL; sym = nsym) { 146612099Sjoerg nsym = sym->s_link; 146712099Sjoerg if (sym->s_blklev >= 1) { 146812099Sjoerg if ((*sym->s_rlink = nsym) != NULL) 146912099Sjoerg nsym->s_rlink = sym->s_rlink; 147012099Sjoerg } 147112099Sjoerg } 147212099Sjoerg } 147312099Sjoerg 147412099Sjoerg for (i = mblklev; i > 0; i--) 147512099Sjoerg freelblk(i); 147612099Sjoerg} 147712099Sjoerg 147812099Sjoerg/* 147912099Sjoerg * Create a new symbol with the name of an existing symbol. 148012099Sjoerg */ 148112099Sjoergsym_t * 148291592Smarkmpushdown(sym_t *sym) 148312099Sjoerg{ 148412099Sjoerg int h; 148512099Sjoerg sym_t *nsym; 148612099Sjoerg 148712099Sjoerg h = hash(sym->s_name); 148812099Sjoerg nsym = getblk(sizeof (sym_t)); 148912099Sjoerg if (sym->s_blklev > blklev) 1490280387Spfg LERROR("pushdown()"); 149112099Sjoerg nsym->s_name = sym->s_name; 149291592Smarkm UNIQUE_CURR_POS(nsym->s_dpos); 149312099Sjoerg nsym->s_kind = sym->s_kind; 149412099Sjoerg nsym->s_blklev = blklev; 149512099Sjoerg 149612099Sjoerg if ((nsym->s_link = symtab[h]) != NULL) 149712099Sjoerg symtab[h]->s_rlink = &nsym->s_link; 149812099Sjoerg (symtab[h] = nsym)->s_rlink = &symtab[h]; 149912099Sjoerg 150012099Sjoerg *dcs->d_ldlsym = nsym; 150112099Sjoerg dcs->d_ldlsym = &nsym->s_dlnxt; 150212099Sjoerg 150312099Sjoerg return (nsym); 150412099Sjoerg} 150512099Sjoerg 150612099Sjoerg/* 150712099Sjoerg * Free any dynamically allocated memory referenced by 150812099Sjoerg * the value stack or yylval. 150912099Sjoerg * The type of information in yylval is described by tok. 151012099Sjoerg */ 151112099Sjoergvoid 151291592Smarkmfreeyyv(void *sp, int tok) 151312099Sjoerg{ 151412099Sjoerg if (tok == T_NAME || tok == T_TYPENAME) { 151512099Sjoerg sbuf_t *sb = *(sbuf_t **)sp; 151612099Sjoerg freesb(sb); 151712099Sjoerg } else if (tok == T_CON) { 151812099Sjoerg val_t *val = *(val_t **)sp; 151912099Sjoerg free(val); 152012099Sjoerg } else if (tok == T_STRING) { 152112099Sjoerg strg_t *strg = *(strg_t **)sp; 152212099Sjoerg if (strg->st_tspec == CHAR) { 152312099Sjoerg free(strg->st_cp); 152412099Sjoerg } else if (strg->st_tspec == WCHAR) { 152512099Sjoerg free(strg->st_wcp); 152612099Sjoerg } else { 1527280387Spfg LERROR("fryylv()"); 152812099Sjoerg } 152912099Sjoerg free(strg); 153091592Smarkm } 153112099Sjoerg} 1532