X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/b6287af6f679018c3612837728c313e1f1c8e274..5ce94c2964afb6e66070f6dbfc8b8de8ab1d77d0:/src/bison.s1?ds=sidebyside diff --git a/src/bison.s1 b/src/bison.s1 index 88fad589..a77da663 100644 --- a/src/bison.s1 +++ b/src/bison.s1 @@ -28,36 +28,53 @@ It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ -#ifndef alloca +#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 #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 is in the user namespace. */ -#if defined (_MSDOS_) && !defined (__TURBOC__) + 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 -#else /* not _MSDOS_, or __TURBOC__ */ +#endif +#else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) -#include +/* I don't know what this was needed for, but it pollutes the namespace. + So I turned it off. rms, 2 May 1997. */ +/* #include */ #pragma alloca -#else /* not MSDOS, __TURBOC__, or _AIX */ -#ifdef __hpux -#ifdef __cplusplus -extern "C" { -void *alloca (unsigned int); -}; -#else /* not __cplusplus */ -void *alloca (); -#endif /* not __cplusplus */ +#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 /* 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 @@ -67,8 +84,8 @@ void *alloca (); #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 -#define YYACCEPT return(0) -#define YYABORT return(1) +#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 @@ -149,12 +166,12 @@ int yydebug; /* nonzero means print parse trace */ #ifndef YYMAXDEPTH #define YYMAXDEPTH 10000 #endif - -/* Prevent warning if -Wstrict-prototypes. */ -#ifdef __GNUC__ -int yyparse (void); -#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++ */ @@ -166,7 +183,7 @@ static void __yy_memcpy (to, from, count) char *to; char *from; - int count; + unsigned int count; { register char *f = from; register char *t = to; @@ -181,7 +198,7 @@ __yy_memcpy (to, from, count) /* 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, int count) +__yy_memcpy (char *to, char *from, unsigned int count) { register char *t = to; register char *f = from; @@ -194,7 +211,7 @@ __yy_memcpy (char *to, char *from, int count) #endif #endif -#line 196 "bison.simple" +#line 215 "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 *. @@ -215,6 +232,15 @@ __yy_memcpy (char *to, char *from, int count) #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 @@ -243,6 +269,7 @@ yyparse(YYPARSE_PARAM_ARG) #endif int yystacksize = YYINITDEPTH; + int yyfree_stacks = 0; #ifdef YYPURE int yychar; @@ -327,18 +354,32 @@ yynewstate: 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; - yyss = (short *) alloca (yystacksize * sizeof (*yyssp)); - __yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp)); - yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp)); - __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp)); +#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 *) alloca (yystacksize * sizeof (*yylsp)); - __yy_memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp)); + yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); + __yy_memcpy ((char *)yyls, (char *)yyls1, + size * (unsigned int) sizeof (*yylsp)); #endif #endif /* no yyoverflow */ @@ -496,7 +537,7 @@ yyreduce: #endif $ /* the action file gets copied in in place of this dollarsign */ -#line 498 "bison.simple" +#line 541 "bison.simple" yyvsp -= yylen; yyssp -= yylen; @@ -691,4 +732,28 @@ yyerrhandle: 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; }