X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2FSDCC.lex;h=4f9b51887143ffac7c794b995ac355ef74005628;hb=195ee3f3ee25ce2c5f2a59fbd2779c4cb80527c3;hp=4eddd3ee77a507cd4513327bcce86108b9577e48;hpb=5df1b9a579235d42fcec8a8884808334ed99a246;p=fw%2Fsdcc diff --git a/src/SDCC.lex b/src/SDCC.lex index 4eddd3ee..4f9b5188 100644 --- a/src/SDCC.lex +++ b/src/SDCC.lex @@ -22,142 +22,148 @@ what you give them. Help stamp out software-hoarding! -------------------------------------------------------------------------*/ -D [0-9] -L [a-zA-Z_] -H [a-fA-F0-9] -E [Ee][+-]?{D}+ -FS (f|F|l|L) -IS (u|U|l|L)* -%{ +D [0-9] +L [a-zA-Z_] +H [a-fA-F0-9] +E [Ee][+-]?{D}+ +FS (f|F|l|L) +IS (u|U|l|L)* +%{ #include #include #include #include "common.h" #include "newalloc.h" - -char *stringLiteral(); -char *currFname; +#include "dbuf.h" -extern int lineno, column; -extern char *filename ; -extern char *fullSrcFileName ; -int yylineno = 1 ; -void count() ; -int process_pragma(char *); -#undef yywrap - -int yywrap YY_PROTO((void)) -{ - return(1); -} #define TKEYWORD(token) return (isTargetKeyword(yytext) ? token :\ - check_type(yytext)) -char *asmbuff=NULL; -int asmbuffSize=0; -char *asmp ; -extern int check_type (); - extern int isTargetKeyword (); -extern int checkCurrFile (char *); -extern int processPragma (char *); -extern int printListing (int ); -struct optimize save_optimize ; -struct options save_options ; - - enum { - P_SAVE = 1, - P_RESTORE , - P_NOINDUCTION, - P_NOINVARIANT, - P_INDUCTION , - P_STACKAUTO , - P_NOJTBOUND , - P_NOOVERLAY , - P_NOGCSE , - P_CALLEE_SAVES, - P_EXCLUDE , - P_LOOPREV - }; + check_type()) + +#define TKEYWORDSDCC(token) return (options.std_sdcc && isTargetKeyword(yytext)\ + ? token : check_type()) + +#define TKEYWORD99(token) return (options.std_c99 ? token : check_type()) + +extern int lineno, column; +extern char *filename; +/* global definitions */ +char *currFname; +int mylineno = 1; + +/* local definitions */ +static struct dbuf_s asmbuff; + +/* forward declarations */ +static char *stringLiteral(void); +static void count(void); +static int process_pragma(char *); +static int check_type(void); +static int isTargetKeyword(char *s); +static int checkCurrFile(char *s); %} + %x asm %% -"_asm" { - count(); - asmp = asmbuff = Safe_realloc (asmbuff, INITIAL_INLINEASM); - asmbuffSize=INITIAL_INLINEASM; - BEGIN(asm) ; +_?"_asm" { + count(); + if (!options.std_sdcc && yytext[1] != '_') + return check_type(); + assert(asmbuff.alloc == 0 && asmbuff.len == 0 && asmbuff.buf == NULL); + dbuf_init(&asmbuff, INITIAL_INLINEASM); + BEGIN(asm); } -"_endasm" { +_?"_endasm" { count(); - *asmp = '\0'; - yylval.yyinline = Safe_alloc (strlen(asmbuff)+1); - strcpy(yylval.yyinline,asmbuff); - BEGIN(INITIAL); - return (INLINEASM); + if (!options.std_sdcc && yytext[1] != '_') + { + dbuf_append(&asmbuff, yytext, strlen(yytext)); + } + else + { + yylval.yyinline = dbuf_c_str(&asmbuff); + dbuf_detach(&asmbuff); + BEGIN(INITIAL); + return (INLINEASM); + } } -. { - if (asmp-asmbuff >= asmbuffSize-2) { - // increase the buffersize with 50% - int size=asmp-asmbuff; - asmbuffSize=asmbuffSize*3/2; - asmbuff = Safe_realloc (asmbuff, asmbuffSize); - asmp=asmbuff+size; - } - *asmp++ = yytext[0]; +\n { + count(); + dbuf_append(&asmbuff, yytext, 1); } -\n { - count(); - if (asmp-asmbuff >= asmbuffSize-3) { - // increase the buffersize with 50% - int size=asmp-asmbuff; - asmbuffSize=asmbuffSize*3/2; - asmbuff = Safe_realloc (asmbuff, asmbuffSize); - asmp=asmbuff+size; - } - *asmp++ = '\n' ; +. { + dbuf_append(&asmbuff, yytext, 1); } -"at" { count(); TKEYWORD(AT) ; } -"auto" { count(); return(AUTO); } -"bit" { count(); TKEYWORD(BIT) ; } +"at" { count(); TKEYWORDSDCC(AT); } +"__at" { count(); TKEYWORD(AT); } +"auto" { count(); return(AUTO); } +"bit" { count(); TKEYWORDSDCC(BIT); } +"__bit" { count(); TKEYWORD(BIT); } "break" { count(); return(BREAK); } "case" { count(); return(CASE); } "char" { count(); return(CHAR); } -"code" { count(); TKEYWORD(CODE); } +"code" { count(); TKEYWORDSDCC(CODE); } +"__code" { count(); TKEYWORD(CODE); } "const" { count(); return(CONST); } "continue" { count(); return(CONTINUE); } -"critical" { count(); TKEYWORD(CRITICAL); } -"data" { count(); TKEYWORD(DATA); } +"critical" { count(); TKEYWORDSDCC(CRITICAL); } +"__critical" { count(); TKEYWORD(CRITICAL); } +"data" { count(); TKEYWORDSDCC(DATA); } +"__data" { count(); TKEYWORD(DATA); } "default" { count(); return(DEFAULT); } "do" { count(); return(DO); } "double" { count(); werror(W_DOUBLE_UNSUPPORTED);return(FLOAT); } "else" { count(); return(ELSE); } "enum" { count(); return(ENUM); } "extern" { count(); return(EXTERN); } -"far" { count(); TKEYWORD(XDATA); } -"eeprom" { count(); TKEYWORD(EEPROM); } +"far" { count(); TKEYWORDSDCC(XDATA); } +"__far" { count(); TKEYWORD(XDATA); } +"eeprom" { count(); TKEYWORDSDCC(EEPROM); } +"__eeprom" { count(); TKEYWORD(EEPROM); } "float" { count(); return(FLOAT); } -"flash" { count(); TKEYWORD(CODE);} +"fixed16x16" { count(); TKEYWORDSDCC(FIXED16X16); } +"__fixed16x16" { count(); TKEYWORD(FIXED16X16); } +"flash" { count(); TKEYWORDSDCC(CODE); } +"__flash" { count(); TKEYWORD(CODE); } "for" { count(); return(FOR); } -"goto" { count(); return(GOTO); } -"idata" { count(); TKEYWORD(IDATA);} +"goto" { count(); return(GOTO); } +"idata" { count(); TKEYWORDSDCC(IDATA); } +"__idata" { count(); TKEYWORD(IDATA); } "if" { count(); return(IF); } "int" { count(); return(INT); } -"interrupt" { count(); return(INTERRUPT);} -"nonbanked" { count(); TKEYWORD(NONBANKED);} -"banked" { count(); TKEYWORD(BANKED);} -"long" { count(); return(LONG); } -"near" { count(); TKEYWORD(DATA);} -"pdata" { count(); TKEYWORD(PDATA); } -"reentrant" { count(); TKEYWORD(REENTRANT);} +"interrupt" { count(); TKEYWORDSDCC(INTERRUPT); } +"__interrupt" { count(); TKEYWORD(INTERRUPT); } +"nonbanked" { count(); TKEYWORDSDCC(NONBANKED); } +"__nonbanked" { count(); TKEYWORD(NONBANKED); } +"banked" { count(); TKEYWORDSDCC(BANKED); } +"__banked" { count(); TKEYWORD(BANKED); } +"long" { count(); return(LONG); } +"near" { count(); TKEYWORDSDCC(DATA); } +"__near" { count(); TKEYWORD(DATA); } +"pdata" { count(); TKEYWORDSDCC(PDATA); } +"__pdata" { count(); TKEYWORD(PDATA); } +"reentrant" { count(); TKEYWORDSDCC(REENTRANT); } +"__reentrant" { count(); TKEYWORD(REENTRANT); } +"shadowregs" { count(); TKEYWORDSDCC(SHADOWREGS); } +"__shadowregs" { count(); TKEYWORD(SHADOWREGS); } +"wparam" { count(); TKEYWORDSDCC(WPARAM); } +"__wparam" { count(); TKEYWORD(WPARAM); } "register" { count(); return(REGISTER); } "return" { count(); return(RETURN); } -"sfr" { count(); TKEYWORD(SFR) ; } -"sbit" { count(); TKEYWORD(SBIT) ; } +"sfr" { count(); TKEYWORDSDCC(SFR); } +"__sfr" { count(); TKEYWORD(SFR); } +"sfr16" { count(); TKEYWORDSDCC(SFR16); } +"__sfr16" { count(); TKEYWORD(SFR16); } +"sfr32" { count(); TKEYWORDSDCC(SFR32); } +"__sfr32" { count(); TKEYWORD(SFR32); } +"sbit" { count(); TKEYWORDSDCC(SBIT); } +"__sbit" { count(); TKEYWORD(SBIT); } "short" { count(); return(SHORT); } "signed" { count(); return(SIGNED); } "sizeof" { count(); return(SIZEOF); } -"sram" { count(); TKEYWORD(XDATA);} +"sram" { count(); TKEYWORDSDCC(XDATA); } +"__sram" { count(); TKEYWORD(XDATA); } "static" { count(); return(STATIC); } "struct" { count(); return(STRUCT); } "switch" { count(); return(SWITCH); } @@ -166,30 +172,39 @@ struct options save_options ; "unsigned" { count(); return(UNSIGNED); } "void" { count(); return(VOID); } "volatile" { count(); return(VOLATILE); } -"using" { count(); TKEYWORD(USING); } -"_naked" { count(); TKEYWORD(NAKED); } +"using" { count(); TKEYWORDSDCC(USING); } +"__using" { count(); TKEYWORD(USING); } +"_naked" { count(); TKEYWORDSDCC(NAKED); } +"__naked" { count(); TKEYWORD(NAKED); } "while" { count(); return(WHILE); } -"xdata" { count(); TKEYWORD(XDATA); } -"..." { count(); return(VAR_ARGS);} +"xdata" { count(); TKEYWORDSDCC(XDATA); } +"__xdata" { count(); TKEYWORD(XDATA); } +"..." { count(); return(VAR_ARGS); } +"__typeof" { count(); return TYPEOF; } +"_JavaNative" { count(); TKEYWORD(JAVANATIVE); } +"_overlay" { count(); TKEYWORDSDCC(OVERLAY); } +"__overlay" { count(); TKEYWORD(OVERLAY); } +"inline" { count(); TKEYWORD99(INLINE); } +"restrict" { count(); TKEYWORD99(RESTRICT); } {L}({L}|{D})* { count(); return(check_type()); } 0[xX]{H}+{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); } -0{D}+{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); } -{D}+{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); } -'(\\.|[^\\'])+' { count();yylval.val = charVal (yytext); return(CONSTANT); } +0[0-7]*{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); } +[1-9]{D}*{IS}? { count(); yylval.val = constVal(yytext); return(CONSTANT); } +'(\\.|[^\\'])+' { count();yylval.val = charVal (yytext); return(CONSTANT); /* ' make syntax highliter happy */ } {D}+{E}{FS}? { count(); yylval.val = constFloatVal(yytext);return(CONSTANT); } {D}*"."{D}+({E})?{FS}? { count(); yylval.val = constFloatVal(yytext);return(CONSTANT); } -{D}+"."{D}*({E})?{FS}? { count(); yylval.val = constFloatVal(yytext);return(CONSTANT); } -\" { count(); yylval.val=strVal(stringLiteral()); return(STRING_LITERAL);} +{D}+"."{D}*({E})?{FS}? { count(); yylval.val = constFloatVal(yytext);return(CONSTANT); } +\" { count(); yylval.val=strVal(stringLiteral()); return(STRING_LITERAL); } ">>=" { count(); yylval.yyint = RIGHT_ASSIGN ; return(RIGHT_ASSIGN); } -"<<=" { count(); yylval.yyint = LEFT_ASSIGN ; return(LEFT_ASSIGN) ; } -"+=" { count(); yylval.yyint = ADD_ASSIGN ; return(ADD_ASSIGN) ; } -"-=" { count(); yylval.yyint = SUB_ASSIGN ; return(SUB_ASSIGN) ; } -"*=" { count(); yylval.yyint = MUL_ASSIGN ; return(MUL_ASSIGN) ; } -"/=" { count(); yylval.yyint = DIV_ASSIGN ; return(DIV_ASSIGN) ; } -"%=" { count(); yylval.yyint = MOD_ASSIGN ; return(MOD_ASSIGN) ; } -"&=" { count(); yylval.yyint = AND_ASSIGN ; return(AND_ASSIGN) ; } -"^=" { count(); yylval.yyint = XOR_ASSIGN ; return(XOR_ASSIGN) ; } -"|=" { count(); yylval.yyint = OR_ASSIGN ; return(OR_ASSIGN) ; } +"<<=" { count(); yylval.yyint = LEFT_ASSIGN ; return(LEFT_ASSIGN); } +"+=" { count(); yylval.yyint = ADD_ASSIGN ; return(ADD_ASSIGN); } +"-=" { count(); yylval.yyint = SUB_ASSIGN ; return(SUB_ASSIGN); } +"*=" { count(); yylval.yyint = MUL_ASSIGN ; return(MUL_ASSIGN); } +"/=" { count(); yylval.yyint = DIV_ASSIGN ; return(DIV_ASSIGN); } +"%=" { count(); yylval.yyint = MOD_ASSIGN ; return(MOD_ASSIGN); } +"&=" { count(); yylval.yyint = AND_ASSIGN ; return(AND_ASSIGN); } +"^=" { count(); yylval.yyint = XOR_ASSIGN ; return(XOR_ASSIGN); } +"|=" { count(); yylval.yyint = OR_ASSIGN ; return(OR_ASSIGN); } ">>" { count(); return(RIGHT_OP); } "<<" { count(); return(LEFT_OP); } "++" { count(); return(INC_OP); } @@ -202,12 +217,12 @@ struct options save_options ; "==" { count(); return(EQ_OP); } "!=" { count(); return(NE_OP); } ";" { count(); return(';'); } -"{" { count(); NestLevel++ ; return('{'); } -"}" { count(); NestLevel--; return('}'); } +"{" { count(); NestLevel++ ; ignoreTypedefType = 0; return('{'); } +"}" { count(); NestLevel--; return('}'); } "," { count(); return(','); } ":" { count(); return(':'); } "=" { count(); return('='); } -"(" { count(); return('('); } +"(" { count(); ignoreTypedefType = 0; return('('); } ")" { count(); return(')'); } "[" { count(); return('['); } "]" { count(); return(']'); } @@ -225,352 +240,640 @@ struct options save_options ; "^" { count(); return('^'); } "|" { count(); return('|'); } "?" { count(); return('?'); } -^#line.*"\n" { count(); checkCurrFile(yytext); } -^#pragma.*"\n" { count(); process_pragma(yytext); } +^#pragma.*"\n" { count(); process_pragma(yytext); } +^(#line.*"\n")|(#.*"\n") { count(); checkCurrFile(yytext); } -^[^(]+"("[0-9]+") : error"[^\n]+ { werror(E_PRE_PROC_FAILED,yytext);count(); } -^[^(]+"("[0-9]+") : warning"[^\n]+ { werror(W_PRE_PROC_WARNING,yytext);count(); } -"\r\n" { count(); } -"\n" { count(); } +^[^(]+"("[0-9]+") : error"[^\n]+ { werror(E_PRE_PROC_FAILED, yytext); count(); } +^[^(]+"("[0-9]+") : warning"[^\n]+ { werror(W_PRE_PROC_WARNING, yytext); count(); } +"\r\n" { count(); } +"\n" { count(); } [ \t\v\f] { count(); } \\ { - char ch=input(); - if (ch!='\n') { - // that could have been removed by the preprocessor anyway + int ch = input(); + if (ch != '\n') { + /* that could have been removed by the preprocessor anyway */ werror (W_STRAY_BACKSLASH, column); unput(ch); } } -. { count() ; } +. { count(); } %% - -int checkCurrFile ( char *s) + +/* flex 2.5.31 undefines yytext_ptr, so we have to define it again */ +#ifndef yytext_ptr +#define yytext_ptr yytext +#endif + + +static int checkCurrFile (char *s) { - char lineNum[10] ; - int lNum ; - char *tptr ; - - /* first check if this is a #line */ - if ( strncmp(s,"#line",5) ) - return 0 ; - - /* get to the line number */ - while (!isdigit(*s)) - s++ ; - tptr = lineNum ; - while (isdigit(*s)) - *tptr++ = *s++ ; - *tptr = '\0'; - sscanf(lineNum,"%d",&lNum); - + int lNum; + char *tptr; + + /* skip '#' character */ + if (*s++ != '#') + return 0; + + /* check if this is a #line + this is not standard and can be removed in the future */ +#define LINE_STR "line" +#define LINE_LEN ((sizeof LINE_STR) - 1) + + if (strncmp(s, LINE_STR, LINE_LEN) == 0) + s += LINE_LEN; + + /* get the line number */ + lNum = strtol(s, &tptr, 10); + if (tptr == s || !isspace((unsigned char)*tptr)) + return 0; + s = tptr; + /* now see if we have a file name */ - while (*s != '\"' && *s) - s++ ; - + while (*s != '\"' && *s) + s++; + /* if we don't have a filename then */ /* set the current line number to */ /* line number if printFlag is on */ - if (!*s) { - lineno = yylineno = lNum ; + if (!*s) { + lineno = mylineno = lNum; return 0; } - + /* if we have a filename then check */ /* if it is "standard in" if yes then */ /* get the currentfile name info */ s++ ; - if ( strncmp(s,fullSrcFileName,strlen(fullSrcFileName)) == 0) { - lineno = yylineno = lNum; - currFname = fullSrcFileName ; - } else { - char *sb = s; - /* mark the end of the filename */ - while (*s != '"') s++; - *s = '\0'; - currFname = Safe_alloc (strlen(sb)+1); - strcpy(currFname,sb); - lineno = yylineno = lNum; + /* in c1mode fullSrcFileName is NULL */ + if (fullSrcFileName && + strncmp(s, fullSrcFileName, strlen(fullSrcFileName)) == 0) { + lineno = mylineno = lNum; + currFname = fullSrcFileName; + } else { + char *sb = s; + /* mark the end of the filename */ + while (*s != '"') s++; + *s = '\0'; + currFname = strdup (sb); + lineno = mylineno = lNum; } filename = currFname ; return 0; } - + int column = 0; -int plineIdx=0; +int plineIdx =0; -void count() +static void count(void) { int i; - for (i = 0; yytext[i] != '\0'; i++) { - if (yytext[i] == '\n') { + for (i = 0; yytext[i] != '\0'; i++) { + if (yytext[i] == '\n') { column = 0; - lineno = ++yylineno ; + lineno = ++mylineno; } - else + else if (yytext[i] == '\t') - column += 8 - (column % 8); + column += 8 - (column % 8); else - column++; + column++; } /* ECHO; */ } -int check_type() +static int check_type(void) { - /* check if it is in the typedef table */ - if (findSym(TypedefTab,NULL,yytext)) { - strcpy(yylval.yychar,yytext); - return (TYPE_NAME) ; - } - else { - strcpy (yylval.yychar,yytext); - return(IDENTIFIER); - } -} + symbol *sym = findSym(SymbolTab, NULL, yytext); -char strLitBuff[2048]; // TODO: this is asking for the next bug :) + /* check if it is in the table as a typedef */ + if (!ignoreTypedefType && sym && IS_SPEC (sym->etype) + && SPEC_TYPEDEF (sym->etype)) { + strncpyz(yylval.yychar, yytext, SDCC_NAME_MAX); + return (TYPE_NAME); + } + else { + strncpyz (yylval.yychar, yytext, SDCC_NAME_MAX); + return(IDENTIFIER); + } +} /* * Change by JTV 2001-05-19 to not concantenate strings - * to support ANSI hex and octal escape sequences in string liteals + * to support ANSI hex and octal escape sequences in string literals */ -char *stringLiteral () { +static char *stringLiteral(void) +{ +#define STR_BUF_CHUNCK_LEN 1024 int ch; - char *str = strLitBuff; - - *str++ = '\"'; + static struct dbuf_s dbuf; + char buf[2]; + + if (dbuf.alloc == 0) + dbuf_init(&dbuf, STR_BUF_CHUNCK_LEN); + else + dbuf_set_size(&dbuf, 0); + + dbuf_append(&dbuf, "\"", 1); /* put into the buffer till we hit the first \" */ - - while (1) { - ch = input(); - - if (!ch) - break; /* end of input */ - - /* if it is a \ then escape char's are allowed */ - if (ch == '\\') { - ch=input(); - if (ch=='\n') { - /* \ is a continuator */ - lineno=++yylineno; - column=0; - continue; + + while ((ch = input()) != 0) { + switch (ch) { + case '\\': + /* if it is a \ then escape char's are allowed */ + ch = input(); + if (ch == '\n') { + /* \ is a continuator */ + lineno = ++mylineno; + column = 0; } - *str++ = '\\'; /* backslash in place */ - *str++ = ch; /* get the escape char, no further check */ - continue; /* carry on */ - } - - /* if new line we have a new line break, which is illegal */ - if (ch == '\n') { - werror (W_NEWLINE_IN_STRING); - *str++ = '\n'; - lineno=++yylineno; - column=0; - continue; - } - - /* if this is a quote then we have work to do */ - /* find the next non whitespace character */ - /* if that is a double quote then carry on */ - if (ch == '\"') { - *str++ = ch ; /* Pass end of this string or substring to evaluator */ - while ((ch = input()) && (isspace(ch) || ch=='\\')) { - switch (ch) { - case '\\': - if ((ch=input())!='\n') { - werror (W_STRAY_BACKSLASH, column); - unput(ch); - } else { - lineno=++yylineno; - column=0; - } - break; - case '\n': - yylineno++; - break; - } + else { + buf[0] = '\\'; + buf[1] = ch; + dbuf_append(&dbuf, buf, 2); /* get the escape char, no further check */ } + break; /* carry on */ - if (!ch) - break; + case '\n': + /* if new line we have a new line break, which is illegal */ + werror(W_NEWLINE_IN_STRING); + dbuf_append(&dbuf, "\n", 1); + lineno = ++mylineno; + column = 0; + break; + + case '"': + /* if this is a quote then we have work to do */ + /* find the next non whitespace character */ + /* if that is a double quote then carry on */ + dbuf_append(&dbuf, "\"", 1); /* Pass end of this string or substring to evaluator */ + while ((ch = input()) && (isspace(ch) || ch == '\\')) { + switch (ch) { + case '\\': + if ((ch = input()) != '\n') { + werror(W_STRAY_BACKSLASH, column); + unput(ch); + } + else { + lineno = ++mylineno; + column = 0; + } + break; + + case '\n': + mylineno++; + break; + } + } + + if (!ch) + goto out; if (ch != '\"') { - unput(ch) ; - break ; + unput(ch); + goto out; } + break; + + default: + buf[0] = ch; + dbuf_append(&dbuf, buf, 1); /* Put next substring introducer into output string */ } - *str++ = ch; /* Put next substring introducer into output string */ - } - *str = '\0'; - - return strLitBuff; + } + +out: + return (char *)dbuf_c_str(&dbuf); } -void doPragma (int op, char *cp) + +enum pragma_id { + P_SAVE = 1, + P_RESTORE, + P_NOINDUCTION, + P_NOINVARIANT, + P_INDUCTION, + P_STACKAUTO, + P_NOJTBOUND, + P_NOOVERLAY, + P_LESSPEDANTIC, + P_NOGCSE, + P_CALLEE_SAVES, + P_EXCLUDE, + P_NOIV, + P_LOOPREV, + P_OVERLAY_, /* I had a strange conflict with P_OVERLAY while */ + /* cross-compiling for MINGW32 with gcc 3.2 */ + P_DISABLEWARN, + P_OPTCODESPEED, + P_OPTCODESIZE, + P_OPTCODEBALANCED, + P_STD_C89, + P_STD_C99, + P_STD_SDCC89, + P_STD_SDCC99, + P_CODESEG, + P_CONSTSEG +}; + + +/* SAVE/RESTORE stack */ +#define SAVE_RESTORE_SIZE 128 + +STACK_DCL(options_stack, struct options *, SAVE_RESTORE_SIZE) +STACK_DCL(optimize_stack, struct optimize *, SAVE_RESTORE_SIZE) +STACK_DCL(SDCCERRG_stack, struct SDCCERRG *, SAVE_RESTORE_SIZE) + +/* + * cloneXxx functions should be updated every time a new set is + * added to the options or optimize structure! + */ + +static struct options *cloneOptions(struct options *opt) { - switch (op) { - case P_SAVE: - memcpy(&save_options,&options,sizeof(options)); - memcpy(&save_optimize,&optimize,sizeof(optimize)); - break; - case P_RESTORE: - memcpy(&options,&save_options,sizeof(options)); - memcpy(&optimize,&save_optimize,sizeof(optimize)); - break; - case P_NOINDUCTION: - optimize.loopInduction = 0 ; - break; - case P_NOINVARIANT: - optimize.loopInvariant = 0 ; - break; - case P_INDUCTION: - optimize.loopInduction = 1 ; - break; - case P_STACKAUTO: - options.stackAuto = 1; - break; - case P_NOJTBOUND: - optimize.noJTabBoundary = 1; - break; - case P_NOGCSE: - optimize.global_cse = 0; - break; - case P_NOOVERLAY: - options.noOverlay = 1; - break; - case P_CALLEE_SAVES: - { - int i=0; - /* append to the functions already listed - in callee-saves */ - for (; options.calleeSaves[i] ;i++); - parseWithComma(&options.calleeSaves[i],strdup(cp)); - } - break; - case P_EXCLUDE: - parseWithComma(options.excludeRegs,strdup(cp)); - break; - case P_LOOPREV: - optimize.noLoopReverse = 1; - break; - } + struct options *new_opt; + + new_opt = Safe_malloc(sizeof (struct options)); + + /* clone scalar values */ + *new_opt = *opt; + + /* clone sets */ + new_opt->calleeSavesSet = setFromSetNonRev(opt->calleeSavesSet); + new_opt->excludeRegsSet = setFromSetNonRev(opt->excludeRegsSet); + /* not implemented yet: */ + /* new_opt->olaysSet = setFromSetNonRev(opt->olaysSet); */ + + return new_opt; } -int process_pragma(char *s) +static struct optimize *cloneOptimize(struct optimize *opt) { - char *cp ; - /* find the pragma */ - while (strncmp(s,"#pragma",7)) - s++; - s += 7; - - /* look for the directive */ - while(isspace(*s)) s++; - - cp = s; - /* look for the end of the directive */ - while ((! isspace(*s)) && - (*s != '\n')) - s++ ; - - /* First give the port a chance */ - if (port->process_pragma && !port->process_pragma(cp)) - return 0; - - /* now compare and do what needs to be done */ - if (strncmp(cp,PRAGMA_SAVE,strlen(PRAGMA_SAVE)) == 0) { - doPragma(P_SAVE,cp+strlen(PRAGMA_SAVE)); - return 0; - } + struct optimize *new_opt; - if (strncmp(cp,PRAGMA_RESTORE,strlen(PRAGMA_RESTORE)) == 0) { - doPragma (P_RESTORE,cp+strlen(PRAGMA_RESTORE)); - return 0; - } + new_opt = Safe_malloc(sizeof (struct optimize)); - if (strncmp(cp,PRAGMA_NOINDUCTION,strlen(PRAGMA_NOINDUCTION)) == 0) { - doPragma (P_NOINDUCTION,cp+strlen(PRAGMA_NOINDUCTION)) ; - return 0; - } + /* clone scalar values */ + *new_opt = *opt; - if (strncmp(cp,PRAGMA_NOINVARIANT,strlen(PRAGMA_NOINVARIANT)) == 0) { - doPragma (P_NOINVARIANT,NULL) ; - return 0; - } + return new_opt; +} - if (strncmp(cp,PRAGMA_INDUCTION,strlen(PRAGMA_INDUCTION)) == 0) { - doPragma (P_INDUCTION,NULL) ; - return 0; - } +static struct SDCCERRG *cloneSDCCERRG (struct SDCCERRG *val) +{ + struct SDCCERRG *new_val; - if (strncmp(cp,PRAGMA_STACKAUTO,strlen(PRAGMA_STACKAUTO)) == 0) { - doPragma (P_STACKAUTO,NULL); - return 0; - } + new_val = Safe_malloc(sizeof (struct SDCCERRG)); - if (strncmp(cp,PRAGMA_NOJTBOUND,strlen(PRAGMA_NOJTBOUND)) == 0) { - doPragma (P_NOJTBOUND,NULL); - return 0; - } + /* clone scalar values */ + *new_val = *val; - if (strncmp(cp,PRAGMA_NOGCSE,strlen(PRAGMA_NOGCSE)) == 0) { - doPragma (P_NOGCSE,NULL); - return 0; - } + return new_val; +} + +static void copyAndFreeOptions(struct options *dest, struct options *src) +{ + /* delete dest sets */ + deleteSet(&dest->calleeSavesSet); + deleteSet(&dest->excludeRegsSet); + /* not implemented yet: */ + /* deleteSet(&dest->olaysSet); */ + + /* copy src to dest */ + *dest = *src; + + Safe_free(src); +} + +static void copyAndFreeOptimize(struct optimize *dest, struct optimize *src) +{ + /* copy src to dest */ + *dest = *src; + + Safe_free(src); +} - if (strncmp(cp,PRAGMA_NOOVERLAY,strlen(PRAGMA_NOOVERLAY)) == 0) { - doPragma (P_NOOVERLAY,NULL); - return 0; +static void copyAndFreeSDCCERRG(struct SDCCERRG *dest, struct SDCCERRG *src) +{ + /* copy src to dest */ + *dest = *src; + + Safe_free(src); +} + +static void doPragma(int op, char *cp) +{ + int i; + + switch (op) { + case P_SAVE: + { + STACK_PUSH(options_stack, cloneOptions(&options)); + STACK_PUSH(optimize_stack, cloneOptimize(&optimize)); + STACK_PUSH(SDCCERRG_stack, cloneSDCCERRG(&_SDCCERRG)); } - - if (strncmp(cp,PRAGMA_CALLEESAVES,strlen(PRAGMA_CALLEESAVES)) == 0) { - doPragma(P_CALLEE_SAVES,cp+strlen(PRAGMA_CALLEESAVES)); - return 0; + break; + + case P_RESTORE: + { + struct options *optionsp; + struct optimize *optimizep; + struct SDCCERRG *sdccerrgp; + + optionsp = STACK_POP(options_stack); + copyAndFreeOptions(&options, optionsp); + + optimizep = STACK_POP(optimize_stack); + copyAndFreeOptimize(&optimize, optimizep); + + sdccerrgp = STACK_POP(SDCCERRG_stack); + copyAndFreeSDCCERRG(&_SDCCERRG, sdccerrgp); } - - if (strncmp(cp,PRAGMA_EXCLUDE,strlen(PRAGMA_EXCLUDE)) == 0) { - doPragma(P_EXCLUDE,cp+strlen(PRAGMA_EXCLUDE)); - return 0; + break; + + case P_NOINDUCTION: + optimize.loopInduction = 0; + break; + + case P_NOINVARIANT: + optimize.loopInvariant = 0; + break; + + case P_INDUCTION: + optimize.loopInduction = 1; + break; + + case P_STACKAUTO: + options.stackAuto = 1; + break; + + case P_NOJTBOUND: + optimize.noJTabBoundary = 1; + break; + + case P_NOGCSE: + optimize.global_cse = 0; + break; + + case P_NOOVERLAY: + options.noOverlay = 1; + break; + + case P_LESSPEDANTIC: + options.lessPedantic = 1; + setErrorLogLevel(ERROR_LEVEL_WARNING); + break; + + case P_CALLEE_SAVES: + /* append to the functions already listed + in callee-saves */ + setParseWithComma(&options.calleeSavesSet, cp); + break; + + case P_EXCLUDE: + { + deleteSet(&options.excludeRegsSet); + setParseWithComma(&options.excludeRegsSet, cp); } + break; + + case P_NOIV: + options.noiv = 1; + break; - if (strncmp(cp,PRAGMA_NOLOOPREV,strlen(PRAGMA_NOLOOPREV)) == 0) { - doPragma(P_LOOPREV,NULL); - return 0; + case P_LOOPREV: + optimize.noLoopReverse = 1; + break; + + case P_OVERLAY_: + break; /* notyet */ + + case P_DISABLEWARN: + if (sscanf(cp, "%d", &i) && (iprocess_pragma && !port->process_pragma(cp)) return 0; + + for (i = 0; i < NELEM(pragma_tbl); i++) + { + /* now compare and do what needs to be done */ + size_t len = strlen(pragma_tbl[i].name); + + if (strncmp(cp, pragma_tbl[i].name, len) == 0) + { + if (pragma_tbl[i].deprecated != 0) + werror(W_DEPRECATED_PRAGMA, pragma_tbl[i].name); + + doPragma(pragma_tbl[i].id, s); + return 0; + } + } + + werror(W_UNKNOWN_PRAGMA, cp); + return 0; } /* will return 1 if the string is a part of a target specific keyword */ -int isTargetKeyword(char *s) +static int isTargetKeyword(char *s) { - int i; - - if (port->keywords == NULL) - return 0; - for ( i = 0 ; port->keywords[i] ; i++ ) { - if (strcmp(port->keywords[i],s) == 0) - return 1; - } - + int i; + + if (port->keywords == NULL) return 0; + + if (s[0] == '_' && s[1] == '_') + { + /* Keywords in the port's array have either 0 or 1 underscore, */ + /* so skip over the appropriate number of chars when comparing */ + for (i = 0 ; port->keywords[i] ; i++ ) + { + if (port->keywords[i][0] == '_' && + strcmp(port->keywords[i],s+1) == 0) + return 1; + else if (strcmp(port->keywords[i],s+2) == 0) + return 1; + } + } + else + { + for (i = 0 ; port->keywords[i] ; i++ ) + { + if (strcmp(port->keywords[i],s) == 0) + return 1; + } + } + + return 0; } -extern int fatalError; +int yywrap(void) +{ + if (!STACK_EMPTY(options_stack) || !STACK_EMPTY(optimize_stack)) + werror(W_SAVE_RESTORE); + + return 1; +} int yyerror(char *s) { - fflush(stdout); - - if (yylineno && filename) - fprintf(stdout,"\n%s(%d) %s: token -> '%s' ; column %d\n", - filename,yylineno, - s,yytext,column); - fatalError++; - return 0; + fflush(stdout); + + if (mylineno && filename) { + if(options.vc_err_style) + fprintf(stderr, "\n%s(%d) : %s: token -> '%s' ; column %d\n", + filename, mylineno, s, yytext, column); + else + fprintf(stderr, "\n%s:%d: %s: token -> '%s' ; column %d\n", + filename, mylineno, s ,yytext, column); + fatalError++; + } else { + /* this comes from an empy file, no problem */ + } + return 0; }