/* A Bison parser, made from jamgram.y by GNU Bison version 1.28 */ #define YYBISON 1 /* Identify Bison output. */ #define _BANG 257 #define _BANG_EQUALS 258 #define _AMPERAMPER 259 #define _LPAREN 260 #define _RPAREN 261 #define _PLUS_EQUALS 262 #define _COLON 263 #define _SEMIC 264 #define _LANGLE 265 #define _LANGLE_EQUALS 266 #define _EQUALS 267 #define _RANGLE 268 #define _RANGLE_EQUALS 269 #define _QUESTION_EQUALS 270 #define ACTIONS 271 #define BIND 272 #define CASE 273 #define DEFAULT 274 #define ELSE 275 #define EXISTING 276 #define FOR 277 #define IF 278 #define IGNORE 279 #define IN 280 #define INCLUDE 281 #define LOCAL 282 #define ON 283 #define PIECEMEAL 284 #define QUIETLY 285 #define RULE 286 #define SWITCH 287 #define TOGETHER 288 #define UPDATED 289 #define _LBRACE 290 #define _BARBAR 291 #define _RBRACE 292 #define ARG 293 #define STRING 294 #line 63 "jamgram.y" #include "jam.h" #include "lists.h" #include "parse.h" #include "scan.h" #include "compile.h" #include "newstr.h" # define F0 (void (*)())0 # define P0 (PARSE *)0 # define S0 (char *)0 # define pset( l,r,a ) parse_make( compile_set,P0,P0,S0,S0,l,r,a ) # define pset1( l,p,a ) parse_make( compile_settings,p,P0,S0,S0,l,L0,a ) # define pstng( p,l,r,a ) pset1( p, parse_make( F0,P0,P0,S0,S0,l,r,0 ), a ) # define prule( s,p ) parse_make( compile_rule,p,P0,s,S0,L0,L0,0 ) # define prules( l,r ) parse_make( compile_rules,l,r,S0,S0,L0,L0,0 ) # define pfor( s,p,l ) parse_make( compile_foreach,p,P0,s,S0,l,L0,0 ) # define psetc( s,p ) parse_make( compile_setcomp,p,P0,s,S0,L0,L0,0 ) # define psete( s,l,s1,f ) parse_make( compile_setexec,P0,P0,s,s1,l,L0,f ) # define pincl( l ) parse_make( compile_include,P0,P0,S0,S0,l,L0,0 ) # define pswitch( l,p ) parse_make( compile_switch,p,P0,S0,S0,l,L0,0 ) # define plocal( l,r,p ) parse_make( compile_local,p,P0,S0,S0,l,r,0 ) # define pnull() parse_make( compile_null,P0,P0,S0,S0,L0,L0,0 ) # define pcases( l,r ) parse_make( F0,l,r,S0,S0,L0,L0,0 ) # define pcase( s,p ) parse_make( F0,p,P0,s,S0,L0,L0,0 ) # define pif( l,r ) parse_make( compile_if,l,r,S0,S0,L0,L0,0 ) # define pthen( l,r ) parse_make( F0,l,r,S0,S0,L0,L0,0 ) # define pcond( c,l,r ) parse_make( F0,l,r,S0,S0,L0,L0,c ) # define pcomp( c,l,r ) parse_make( F0,P0,P0,S0,S0,l,r,c ) # define plol( p,l ) parse_make( F0,p,P0,S0,S0,l,L0,0 ) #ifndef YYSTYPE #define YYSTYPE int #endif #include <stdio.h> #ifndef __cplusplus #ifndef __STDC__ #define const #endif #endif #define YYFINAL 115 #define YYFLAG -32768 #define YYNTBASE 41 #define YYTRANSLATE(x) ((unsigned)(x) <= 294 ? yytranslate[x] : 57) static const char yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 }; #if YYDEBUG != 0 static const short yyprhs[] = { 0, 0, 2, 3, 6, 11, 18, 22, 26, 30, 35, 42, 48, 56, 62, 68, 76, 80, 81, 82, 92, 94, 96, 98, 100, 104, 108, 112, 116, 120, 124, 128, 131, 135, 139, 143, 144, 147, 152, 154, 158, 160, 161, 164, 166, 167, 170, 172, 174, 176, 178, 180, 182, 183 }; static const short yyrhs[] = { 42, 0, 0, 43, 42, 0, 28, 51, 10, 42, 0, 28, 51, 13, 51, 10, 42, 0, 36, 42, 38, 0, 27, 51, 10, 0, 39, 50, 10, 0, 53, 46, 51, 10, 0, 53, 29, 51, 46, 51, 10, 0, 53, 20, 13, 51, 10, 0, 23, 39, 26, 51, 36, 42, 38, 0, 33, 51, 36, 48, 38, 0, 24, 47, 36, 42, 38, 0, 24, 47, 36, 42, 38, 21, 43, 0, 32, 39, 43, 0, 0, 0, 17, 54, 39, 56, 36, 44, 40, 45, 38, 0, 13, 0, 8, 0, 16, 0, 53, 0, 53, 13, 53, 0, 53, 4, 53, 0, 53, 11, 53, 0, 53, 12, 53, 0, 53, 14, 53, 0, 53, 15, 53, 0, 53, 26, 51, 0, 3, 47, 0, 47, 5, 47, 0, 47, 37, 47, 0, 6, 47, 7, 0, 0, 49, 48, 0, 19, 39, 9, 42, 0, 51, 0, 51, 9, 50, 0, 52, 0, 0, 52, 39, 0, 39, 0, 0, 54, 55, 0, 35, 0, 34, 0, 25, 0, 31, 0, 30, 0, 22, 0, 0, 18, 51, 0 }; #endif #if YYDEBUG != 0 static const short yyrline[] = { 0, 101, 119, 121, 123, 125, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 154, 156, 163, 165, 167, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 208, 210, 214, 222, 224, 233, 237, 239, 243, 252, 254, 258, 260, 262, 264, 266, 268, 277, 279 }; #endif #if YYDEBUG != 0 || defined (YYERROR_VERBOSE) static const char * const yytname[] = { "$","error","$undefined.","_BANG", "_BANG_EQUALS","_AMPERAMPER","_LPAREN","_RPAREN","_PLUS_EQUALS","_COLON","_SEMIC", "_LANGLE","_LANGLE_EQUALS","_EQUALS","_RANGLE","_RANGLE_EQUALS","_QUESTION_EQUALS", "ACTIONS","BIND","CASE","DEFAULT","ELSE","EXISTING","FOR","IF","IGNORE","IN", "INCLUDE","LOCAL","ON","PIECEMEAL","QUIETLY","RULE","SWITCH","TOGETHER","UPDATED", "_LBRACE","_BARBAR","_RBRACE","ARG","STRING","run","block","rule","@1","@2", "assign","cond","cases","case","lol","args","argsany","arg1","eflags","eflag", "bindlist", NULL }; #endif static const short yyr1[] = { 0, 41, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 44, 45, 43, 46, 46, 46, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 48, 48, 49, 50, 50, 51, 52, 52, 53, 54, 54, 55, 55, 55, 55, 55, 55, 56, 56 }; static const short yyr2[] = { 0, 1, 0, 2, 4, 6, 3, 3, 3, 4, 6, 5, 7, 5, 5, 7, 3, 0, 0, 9, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 2, 3, 3, 3, 0, 2, 4, 1, 3, 1, 0, 2, 1, 0, 2, 1, 1, 1, 1, 1, 1, 0, 2 }; static const short yydefact[] = { 2, 44, 0, 0, 41, 41, 0, 41, 2, 43, 1, 2, 0, 0, 0, 0, 0, 43, 0, 23, 0, 40, 0, 0, 0, 0, 0, 38, 3, 21, 20, 22, 0, 41, 41, 51, 48, 50, 49, 47, 46, 52, 45, 41, 31, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 41, 7, 42, 2, 41, 16, 35, 6, 8, 41, 41, 0, 0, 41, 0, 0, 34, 32, 0, 33, 25, 26, 27, 24, 28, 29, 30, 4, 0, 0, 0, 35, 39, 0, 41, 9, 53, 17, 2, 14, 2, 0, 13, 36, 11, 0, 0, 0, 0, 5, 2, 10, 18, 12, 15, 37, 0, 19, 0, 0, 0 }; static const short yydefgoto[] = { 113, 10, 11, 101, 111, 34, 18, 85, 86, 26, 27, 21, 12, 13, 42, 69 }; static const short yypact[] = { -4, -32768, -32, 3,-32768,-32768, -21,-32768, -4, 6,-32768, -4, 95, 24, 1, 3, 3,-32768, 0, 87, 16, -1, 38, 57, 11, 15, 47, 51,-32768,-32768,-32768, -32768, 48,-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, 55,-32768,-32768,-32768, 7, 3, -4, 3, 36, 36, 36, 36, 36, 36,-32768,-32768,-32768, -4,-32768,-32768, 58,-32768,-32768,-32768,-32768, 9, 66,-32768, 42, 43, -32768,-32768, 44, 78,-32768,-32768,-32768,-32768,-32768,-32768, -32768,-32768, 82, 56, 67, 58,-32768, 84,-32768,-32768, -32768,-32768, -4, 83, -4, 97,-32768,-32768,-32768, 99, 70, 69, 57,-32768, -4,-32768,-32768,-32768,-32768,-32768, 74,-32768, 114, 116,-32768 }; static const short yypgoto[] = {-32768, -8, -15,-32768,-32768, 52, -5, 31,-32768, 59, -3, -32768, 18,-32768,-32768,-32768 }; #define YYLAST 124 static const short yytable[] = { 25, 20, 22, 28, 24, 46, 15, 14, 60, 16, 44, 45, 46, 1, 71, -41, -41, 29, 23, 2, 3, 19, 30, 4, 5, 31, 56, 43, 6, 7, 66, 67, 8, 19, 19, 9, 47, 48, 57, 73, 70, 72, 17, 74, 48, -41, 35, 61, 58, 36, 82, 59, 81, 62, 37, 38, 83, 63, 39, 40, 64, 65, 88, 41, 19, 91, 19, 75, 76, 77, 78, 79, 80, 68, 1, 17, 90, 84, 92, 93, 2, 3, 94, 46, 4, 102, 100, 104, 109, 6, 7, 49, 95, 8, 99, 96, 9, 110, 50, 51, 52, 53, 54, 29, 103, 97, 105, 108, 30, 106, 107, 31, 112, 55, 114, 32, 115, 98, 89, 0, 0, 0, 0, 87, 33 }; static const short yycheck[] = { 8, 4, 5, 11, 7, 5, 3, 39, 23, 6, 15, 16, 5, 17, 7, 9, 10, 8, 39, 23, 24, 3, 13, 27, 28, 16, 10, 26, 32, 33, 33, 34, 36, 15, 16, 39, 36, 37, 39, 47, 43, 46, 39, 48, 37, 39, 22, 36, 10, 25, 58, 13, 55, 38, 30, 31, 59, 10, 34, 35, 9, 13, 65, 39, 46, 68, 48, 49, 50, 51, 52, 53, 54, 18, 17, 39, 10, 19, 36, 36, 23, 24, 38, 5, 27, 93, 89, 95, 103, 32, 33, 4, 10, 36, 10, 39, 39, 105, 11, 12, 13, 14, 15, 8, 21, 38, 9, 38, 13, 10, 40, 16, 38, 26, 0, 20, 0, 86, 66, -1, -1, -1, -1, 64, 29 }; /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ #line 3 "/usr/share/misc/bison.simple" /* This file comes from bison-1.28. */ /* Skeleton output parser for bison, Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ /* This is the parser code that is written into each bison parser when the %semantic_parser declaration is not specified in the grammar. It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ #ifndef YYSTACK_USE_ALLOCA #ifdef alloca #define YYSTACK_USE_ALLOCA #else /* alloca not defined */ #ifdef __GNUC__ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #else /* not GNU C. */ #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) #define YYSTACK_USE_ALLOCA #include <alloca.h> #else /* not sparc */ /* We think this test detects Watcom and Microsoft C. */ /* This used to test MSDOS, but that is a bad idea since that symbol is in the user namespace. */ #if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) #if 0 /* No need for malloc.h, which pollutes the namespace; instead, just don't use alloca. */ #include <malloc.h> #endif #else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) /* I don't know what this was needed for, but it pollutes the namespace. So I turned it off. rms, 2 May 1997. */ /* #include <malloc.h> */ #pragma alloca #define YYSTACK_USE_ALLOCA #else /* not MSDOS, or __TURBOC__, or _AIX */ #if 0 #ifdef __hpux /* haible@ilog.fr says this works for HPUX 9.05 and up, and on HPUX 10. Eventually we can turn this on. */ #define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #endif /* __hpux */ #endif #endif /* not _AIX */ #endif /* not MSDOS, or __TURBOC__ */ #endif /* not sparc */ #endif /* not GNU C */ #endif /* alloca not defined */ #endif /* YYSTACK_USE_ALLOCA not defined */ #ifdef YYSTACK_USE_ALLOCA #define YYSTACK_ALLOC alloca #else #define YYSTACK_ALLOC malloc #endif /* Note: there must be only one dollar sign in this file. It is replaced by the list of actions, each action as one case of the switch. */ #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 #define YYACCEPT goto yyacceptlab #define YYABORT goto yyabortlab #define YYERROR goto yyerrlab1 /* Like YYERROR except do call yyerror. This remains here temporarily to ease the transition to the new meaning of YYERROR, for GCC. Once GCC version 2 has supplanted version 1, this can go. */ #define YYFAIL goto yyerrlab #define YYRECOVERING() (!!yyerrstatus) #define YYBACKUP(token, value) \ do \ if (yychar == YYEMPTY && yylen == 1) \ { yychar = (token), yylval = (value); \ yychar1 = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { yyerror ("syntax error: cannot back up"); YYERROR; } \ while (0) #define YYTERROR 1 #define YYERRCODE 256 #ifndef YYPURE #define YYLEX yylex() #endif #ifdef YYPURE #ifdef YYLSP_NEEDED #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM) #else #define YYLEX yylex(&yylval, &yylloc) #endif #else /* not YYLSP_NEEDED */ #ifdef YYLEX_PARAM #define YYLEX yylex(&yylval, YYLEX_PARAM) #else #define YYLEX yylex(&yylval) #endif #endif /* not YYLSP_NEEDED */ #endif /* If nonreentrant, generate the variables here */ #ifndef YYPURE int yychar; /* the lookahead symbol */ YYSTYPE yylval; /* the semantic value of the */ /* lookahead symbol */ #ifdef YYLSP_NEEDED YYLTYPE yylloc; /* location data for the lookahead */ /* symbol */ #endif int yynerrs; /* number of parse errors so far */ #endif /* not YYPURE */ #if YYDEBUG != 0 int yydebug; /* nonzero means print parse trace */ /* Since this is uninitialized, it does not stop multiple parsers from coexisting. */ #endif /* YYINITDEPTH indicates the initial size of the parser's stacks */ #ifndef YYINITDEPTH #define YYINITDEPTH 200 #endif /* YYMAXDEPTH is the maximum size the stacks can grow to (effective only if the built-in stack extension method is used). */ #if YYMAXDEPTH == 0 #undef YYMAXDEPTH #endif #ifndef YYMAXDEPTH #define YYMAXDEPTH 10000 #endif /* Define __yy_memcpy. Note that the size argument should be passed with type unsigned int, because that is what the non-GCC definitions require. With GCC, __builtin_memcpy takes an arg of type size_t, but it can handle unsigned int. */ #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ #define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT) #else /* not GNU C or C++ */ #ifndef __cplusplus /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (to, from, count) char *to; char *from; unsigned int count; { register char *f = from; register char *t = to; register int i = count; while (i-- > 0) *t++ = *f++; } #else /* __cplusplus */ /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void __yy_memcpy (char *to, char *from, unsigned int count) { register char *t = to; register char *f = from; register int i = count; while (i-- > 0) *t++ = *f++; } #endif #endif #line 217 "/usr/share/misc/bison.simple" /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. It should actually point to an object. Grammar actions can access the variable by casting it to the proper pointer type. */ #ifdef YYPARSE_PARAM #ifdef __cplusplus #define YYPARSE_PARAM_ARG void *YYPARSE_PARAM #define YYPARSE_PARAM_DECL #else /* not __cplusplus */ #define YYPARSE_PARAM_ARG YYPARSE_PARAM #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; #endif /* not __cplusplus */ #else /* not YYPARSE_PARAM */ #define YYPARSE_PARAM_ARG #define YYPARSE_PARAM_DECL #endif /* not YYPARSE_PARAM */ /* Prevent warning if -Wstrict-prototypes. */ #ifdef __GNUC__ #ifdef YYPARSE_PARAM int yyparse (void *); #else int yyparse (void); #endif #endif int yyparse(YYPARSE_PARAM_ARG) YYPARSE_PARAM_DECL { register int yystate; register int yyn; register short *yyssp; register YYSTYPE *yyvsp; int yyerrstatus; /* number of tokens to shift before error messages enabled */ int yychar1 = 0; /* lookahead token as an internal (translated) token number */ short yyssa[YYINITDEPTH]; /* the state stack */ YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */ short *yyss = yyssa; /* refer to the stacks thru separate pointers */ YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */ #ifdef YYLSP_NEEDED YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */ YYLTYPE *yyls = yylsa; YYLTYPE *yylsp; #define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) #else #define YYPOPSTACK (yyvsp--, yyssp--) #endif int yystacksize = YYINITDEPTH; int yyfree_stacks = 0; #ifdef YYPURE int yychar; YYSTYPE yylval; int yynerrs; #ifdef YYLSP_NEEDED YYLTYPE yylloc; #endif #endif YYSTYPE yyval; /* the variable used to return */ /* semantic values from the action */ /* routines */ int yylen; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Starting parse\n"); #endif yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack so that they stay on the same level as the state stack. The wasted elements are never initialized. */ yyssp = yyss - 1; yyvsp = yyvs; #ifdef YYLSP_NEEDED yylsp = yyls; #endif /* Push a new state, which is found in yystate . */ /* In all cases, when you get here, the value and location stacks have just been pushed. so pushing a state here evens the stacks. */ yynewstate: *++yyssp = yystate; if (yyssp >= yyss + yystacksize - 1) { /* Give user a chance to reallocate the stack */ /* Use copies of these so that the &'s don't force the real ones into memory. */ YYSTYPE *yyvs1 = yyvs; short *yyss1 = yyss; #ifdef YYLSP_NEEDED YYLTYPE *yyls1 = yyls; #endif /* Get the current used size of the three stacks, in elements. */ int size = yyssp - yyss + 1; #ifdef yyoverflow /* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. */ #ifdef YYLSP_NEEDED /* This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */ yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yyls1, size * sizeof (*yylsp), &yystacksize); #else yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yystacksize); #endif yyss = yyss1; yyvs = yyvs1; #ifdef YYLSP_NEEDED yyls = yyls1; #endif #else /* no yyoverflow */ /* Extend the stack our own way. */ if (yystacksize >= YYMAXDEPTH) { yyerror("parser stack overflow"); if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 2; } yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; #ifndef YYSTACK_USE_ALLOCA yyfree_stacks = 1; #endif yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); __yy_memcpy ((char *)yyss, (char *)yyss1, size * (unsigned int) sizeof (*yyssp)); yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * (unsigned int) sizeof (*yyvsp)); #ifdef YYLSP_NEEDED yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); __yy_memcpy ((char *)yyls, (char *)yyls1, size * (unsigned int) sizeof (*yylsp)); #endif #endif /* no yyoverflow */ yyssp = yyss + size - 1; yyvsp = yyvs + size - 1; #ifdef YYLSP_NEEDED yylsp = yyls + size - 1; #endif #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Stack size increased to %d\n", yystacksize); #endif if (yyssp >= yyss + yystacksize - 1) YYABORT; } #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Entering state %d\n", yystate); #endif goto yybackup; yybackup: /* Do appropriate processing given the current state. */ /* Read a lookahead token if we need one and don't already have one. */ /* yyresume: */ /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yyn == YYFLAG) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* yychar is either YYEMPTY or YYEOF or a valid token in external form. */ if (yychar == YYEMPTY) { #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Reading a token: "); #endif yychar = YYLEX; } /* Convert token to internal form (in yychar1) for indexing tables with */ if (yychar <= 0) /* This means end of input. */ { yychar1 = 0; yychar = YYEOF; /* Don't call YYLEX any more */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Now at end of input.\n"); #endif } else { yychar1 = YYTRANSLATE(yychar); #if YYDEBUG != 0 if (yydebug) { fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); /* Give the individual parser a way to print the precise meaning of a token, for further debugging info. */ #ifdef YYPRINT YYPRINT (stderr, yychar, yylval); #endif fprintf (stderr, ")\n"); } #endif } yyn += yychar1; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) goto yydefault; yyn = yytable[yyn]; /* yyn is what to do for this token type in this state. Negative => reduce, -yyn is rule number. Positive => shift, yyn is new state. New state is final state => don't bother to shift, just return success. 0, or most negative number => error. */ if (yyn < 0) { if (yyn == YYFLAG) goto yyerrlab; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrlab; if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]); #endif /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif /* count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; yystate = yyn; goto yynewstate; /* Do the default action for the current state. */ yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; /* Do a reduction. yyn is the number of a rule to reduce with. */ yyreduce: yylen = yyr2[yyn]; if (yylen > 0) yyval = yyvsp[1-yylen]; /* implement default value of the action */ #if YYDEBUG != 0 if (yydebug) { int i; fprintf (stderr, "Reducing via rule %d (line %d), ", yyn, yyrline[yyn]); /* Print the symbols being reduced, and their result. */ for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) fprintf (stderr, "%s ", yytname[yyrhs[i]]); fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); } #endif switch (yyn) { case 1: #line 102 "jamgram.y" { if( yyvsp[0].parse->func == compile_null ) { parse_decref( yyvsp[0].parse ); } else { parse_save( yyvsp[0].parse ); } ; break;} case 2: #line 120 "jamgram.y" { yyval.parse = pnull(); ; break;} case 3: #line 122 "jamgram.y" { yyval.parse = prules( yyvsp[-1].parse, yyvsp[0].parse ); ; break;} case 4: #line 124 "jamgram.y" { yyval.parse = plocal( yyvsp[-2].list, L0, yyvsp[0].parse ); ; break;} case 5: #line 126 "jamgram.y" { yyval.parse = plocal( yyvsp[-4].list, yyvsp[-2].list, yyvsp[0].parse ); ; break;} case 6: #line 130 "jamgram.y" { yyval.parse = yyvsp[-1].parse; ; break;} case 7: #line 132 "jamgram.y" { yyval.parse = pincl( yyvsp[-1].list ); ; break;} case 8: #line 134 "jamgram.y" { yyval.parse = prule( yyvsp[-2].string, yyvsp[-1].parse ); ; break;} case 9: #line 136 "jamgram.y" { yyval.parse = pset( yyvsp[-3].list, yyvsp[-1].list, yyvsp[-2].number ); ; break;} case 10: #line 138 "jamgram.y" { yyval.parse = pstng( yyvsp[-3].list, yyvsp[-5].list, yyvsp[-1].list, yyvsp[-2].number ); ; break;} case 11: #line 140 "jamgram.y" { yyval.parse = pset( yyvsp[-4].list, yyvsp[-1].list, ASSIGN_DEFAULT ); ; break;} case 12: #line 142 "jamgram.y" { yyval.parse = pfor( yyvsp[-5].string, yyvsp[-1].parse, yyvsp[-3].list ); ; break;} case 13: #line 144 "jamgram.y" { yyval.parse = pswitch( yyvsp[-3].list, yyvsp[-1].parse ); ; break;} case 14: #line 146 "jamgram.y" { yyval.parse = pif( yyvsp[-3].parse, pthen( yyvsp[-1].parse, pnull() ) ); ; break;} case 15: #line 148 "jamgram.y" { yyval.parse = pif( yyvsp[-5].parse, pthen( yyvsp[-3].parse, yyvsp[0].parse ) ); ; break;} case 16: #line 150 "jamgram.y" { yyval.parse = psetc( yyvsp[-1].string, yyvsp[0].parse ); ; break;} case 17: #line 152 "jamgram.y" { yymode( SCAN_STRING ); ; break;} case 18: #line 154 "jamgram.y" { yymode( SCAN_NORMAL ); ; break;} case 19: #line 156 "jamgram.y" { yyval.parse = psete( yyvsp[-6].string,yyvsp[-5].list,yyvsp[-2].string,yyvsp[-7].number ); ; break;} case 20: #line 164 "jamgram.y" { yyval.number = ASSIGN_SET; ; break;} case 21: #line 166 "jamgram.y" { yyval.number = ASSIGN_APPEND; ; break;} case 22: #line 168 "jamgram.y" { yyval.number = ASSIGN_DEFAULT; ; break;} case 23: #line 176 "jamgram.y" { yyval.parse = pcomp( COND_EXISTS, yyvsp[0].list, L0 ); ; break;} case 24: #line 178 "jamgram.y" { yyval.parse = pcomp( COND_EQUALS, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 25: #line 180 "jamgram.y" { yyval.parse = pcomp( COND_NOTEQ, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 26: #line 182 "jamgram.y" { yyval.parse = pcomp( COND_LESS, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 27: #line 184 "jamgram.y" { yyval.parse = pcomp( COND_LESSEQ, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 28: #line 186 "jamgram.y" { yyval.parse = pcomp( COND_MORE, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 29: #line 188 "jamgram.y" { yyval.parse = pcomp( COND_MOREEQ, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 30: #line 190 "jamgram.y" { yyval.parse = pcomp( COND_IN, yyvsp[-2].list, yyvsp[0].list ); ; break;} case 31: #line 192 "jamgram.y" { yyval.parse = pcond( COND_NOT, yyvsp[0].parse, P0 ); ; break;} case 32: #line 194 "jamgram.y" { yyval.parse = pcond( COND_AND, yyvsp[-2].parse, yyvsp[0].parse ); ; break;} case 33: #line 196 "jamgram.y" { yyval.parse = pcond( COND_OR, yyvsp[-2].parse, yyvsp[0].parse ); ; break;} case 34: #line 198 "jamgram.y" { yyval.parse = yyvsp[-1].parse; ; break;} case 35: #line 209 "jamgram.y" { yyval.parse = P0; ; break;} case 36: #line 211 "jamgram.y" { yyval.parse = pcases( yyvsp[-1].parse, yyvsp[0].parse ); ; break;} case 37: #line 215 "jamgram.y" { yyval.parse = pcase( yyvsp[-2].string, yyvsp[0].parse ); ; break;} case 38: #line 223 "jamgram.y" { yyval.parse = plol( P0, yyvsp[0].list ); ; break;} case 39: #line 225 "jamgram.y" { yyval.parse = plol( yyvsp[0].parse, yyvsp[-2].list ); ; break;} case 40: #line 234 "jamgram.y" { yymode( SCAN_NORMAL ); ; break;} case 41: #line 238 "jamgram.y" { yyval.list = L0; yymode( SCAN_PUNCT ); ; break;} case 42: #line 240 "jamgram.y" { yyval.list = list_new( yyvsp[-1].list, copystr( yyvsp[0].string ) ); ; break;} case 43: #line 244 "jamgram.y" { yyval.list = list_new( L0, copystr( yyvsp[0].string ) ); ; break;} case 44: #line 253 "jamgram.y" { yyval.number = 0; ; break;} case 45: #line 255 "jamgram.y" { yyval.number = yyvsp[-1].number | yyvsp[0].number; ; break;} case 46: #line 259 "jamgram.y" { yyval.number = EXEC_UPDATED; ; break;} case 47: #line 261 "jamgram.y" { yyval.number = EXEC_TOGETHER; ; break;} case 48: #line 263 "jamgram.y" { yyval.number = EXEC_IGNORE; ; break;} case 49: #line 265 "jamgram.y" { yyval.number = EXEC_QUIETLY; ; break;} case 50: #line 267 "jamgram.y" { yyval.number = EXEC_PIECEMEAL; ; break;} case 51: #line 269 "jamgram.y" { yyval.number = EXEC_EXISTING; ; break;} case 52: #line 278 "jamgram.y" { yyval.list = L0; ; break;} case 53: #line 280 "jamgram.y" { yyval.list = yyvsp[0].list; ; break;} } /* the action file gets copied in in place of this dollarsign */ #line 543 "/usr/share/misc/bison.simple" yyvsp -= yylen; yyssp -= yylen; #ifdef YYLSP_NEEDED yylsp -= yylen; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif *++yyvsp = yyval; #ifdef YYLSP_NEEDED yylsp++; if (yylen == 0) { yylsp->first_line = yylloc.first_line; yylsp->first_column = yylloc.first_column; yylsp->last_line = (yylsp-1)->last_line; yylsp->last_column = (yylsp-1)->last_column; yylsp->text = 0; } else { yylsp->last_line = (yylsp+yylen-1)->last_line; yylsp->last_column = (yylsp+yylen-1)->last_column; } #endif /* Now "shift" the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule number reduced by. */ yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTBASE] + *yyssp; if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTBASE]; goto yynewstate; yyerrlab: /* here on detecting error */ if (! yyerrstatus) /* If not already recovering from an error, report this error. */ { ++yynerrs; #ifdef YYERROR_VERBOSE yyn = yypact[yystate]; if (yyn > YYFLAG && yyn < YYLAST) { int size = 0; char *msg; int x, count; count = 0; /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) size += strlen(yytname[x]) + 15, count++; msg = (char *) malloc(size + 15); if (msg != 0) { strcpy(msg, "parse error"); if (count < 5) { count = 0; for (x = (yyn < 0 ? -yyn : 0); x < (sizeof(yytname) / sizeof(char *)); x++) if (yycheck[x + yyn] == x) { strcat(msg, count == 0 ? ", expecting `" : " or `"); strcat(msg, yytname[x]); strcat(msg, "'"); count++; } } yyerror(msg); free(msg); } else yyerror ("parse error; also virtual memory exceeded"); } else #endif /* YYERROR_VERBOSE */ yyerror("parse error"); } goto yyerrlab1; yyerrlab1: /* here on error raised explicitly by an action */ if (yyerrstatus == 3) { /* if just tried and failed to reuse lookahead token after an error, discard it. */ /* return failure if at end of input */ if (yychar == YYEOF) YYABORT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]); #endif yychar = YYEMPTY; } /* Else will try to reuse lookahead token after shifting the error token. */ yyerrstatus = 3; /* Each real token shifted decrements this */ goto yyerrhandle; yyerrdefault: /* current state does not do anything special for the error token. */ #if 0 /* This is wrong; only states that explicitly want error tokens should shift them. */ yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/ if (yyn) goto yydefault; #endif yyerrpop: /* pop the current state because it cannot handle the error token */ if (yyssp == yyss) YYABORT; yyvsp--; yystate = *--yyssp; #ifdef YYLSP_NEEDED yylsp--; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif yyerrhandle: yyn = yypact[yystate]; if (yyn == YYFLAG) goto yyerrdefault; yyn += YYTERROR; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) goto yyerrdefault; yyn = yytable[yyn]; if (yyn < 0) { if (yyn == YYFLAG) goto yyerrpop; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrpop; if (yyn == YYFINAL) YYACCEPT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting error token, "); #endif *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif yystate = yyn; goto yynewstate; yyacceptlab: /* YYACCEPT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 0; yyabortlab: /* YYABORT comes here. */ if (yyfree_stacks) { free (yyss); free (yyvs); #ifdef YYLSP_NEEDED free (yyls); #endif } return 1; } #line 284 "jamgram.y"
# | Change | User | Description | Committed | |
---|---|---|---|---|---|
#4 | 1270 | Matt Armstrong | In prep for publishing all my patches to jam. | ||
#3 | 1088 | Matt Armstrong | Merge in changes from upstream. | ||
#2 | 293 | Matt Armstrong |
Fix a crash bug in jam by adding reference counting to the PARSE struct. The bug occurs when a rule re-defines itself. This can only happen by using the include statement, as follows. JamfileA: ---------------------------------------------------- rule DoInclude { ECHO JamfileA DoInclude $(<) start ; include $(<) ; ECHO JamfileA DoInclude $(<) end ; } DoInclude JambileB ; ---------------------------------------------------- JamfileB: ---------------------------------------------------- rule DoInclude { ECHO JamfileB DoInclude ; } DoInclude JambileC ; ---------------------------------------------------- With these two jamfiles you can reproduce the crash bug by running "jam -fJamfileA". If that doesn't work, change parse_free() such that it memsets PARSE struct being freed to something bogus like 0x03 and try again (or use Purify and watch the free memory read warnings). The problem is that compile_setcomp() just frees the PARSE without regard for the possibility that it might be executing. In the case above, JamfileA's DoInclude is re-defined by JamfileB while it is still being executed. The simple fix is to just have compile_setcomp() not free the PARSE. This would introduce a memory leak for every re-defined rule. My fix introduces reference counting of the PARSE struct. A PARSE is allocated with a reference count of 1 and when it goes to 0 it is freed. Every place that was a parse_free() is now a parse_decref(). In addition, compile_rules() increments the reference count of its PARSE around the calls to its left and right functions. Perhaps there a better fix! |
||
#1 | 289 | Matt Armstrong | Initial branch. |