X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2FSDCC.lex;h=0fc43d00445ed1bd3f5881bb047b091f04423282;hb=80972b2e54c9b88f11c27b878874fd2a6a681391;hp=43074e9d810e42152ffc5a08e5b3a05bfccaa7ae;hpb=ec0e96d4b57d9a43ff90116ef20fc6e2016490f6;p=fw%2Fsdcc diff --git a/src/SDCC.lex b/src/SDCC.lex index 43074e9d..0fc43d00 100644 --- a/src/SDCC.lex +++ b/src/SDCC.lex @@ -1,29 +1,30 @@ /*----------------------------------------------------------------------- - SDCC.lex - lexical analyser for use with sdcc ( a freeware compiler for - 8/16 bit microcontrollers) + SDCC.lex - lexical analyser for use with sdcc (free open source + compiler for 8/16 bit microcontrollers) Written by : Sandeep Dutta . sandeep.dutta@usa.net (1997) - + 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - In other words, you are welcome to use, share and improve this program. - You are forbidden to forbid anyone else to use, share and improve - what you give them. Help stamp out software-hoarding! + 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + In other words, you are welcome to use, share and improve this program. + You are forbidden to forbid anyone else to use, share and improve + what you give them. Help stamp out software-hoarding! -------------------------------------------------------------------------*/ +B [0-1] D [0-9] -L [a-zA-Z_] +L [a-zA-Z_$] H [a-fA-F0-9] E [Ee][+-]?{D}+ FS (f|F|l|L) @@ -35,95 +36,140 @@ IS (u|U|l|L)* #include #include "common.h" #include "newalloc.h" -#include "dbuf.h" +#include "dbuf_string.h" #define TKEYWORD(token) return (isTargetKeyword(yytext) ? token :\ check_type()) -extern int lineno, column; +#define TKEYWORDSDCC(token) return (options.std_sdcc && isTargetKeyword(yytext)\ + ? token : check_type()) + +#define TKEYWORD99(token) return (options.std_c99 ? token : check_type()) + extern char *filename; +extern int lineno; +int column = 0; /* current column */ /* global definitions */ -char *currFname; -int mylineno = 1; +char *lexFilename; +int lexLineno = 1; /* local definitions */ -static struct dbuf_s asmbuff; +static struct dbuf_s asmbuff; /* reusable _asm buffer */ /* forward declarations */ -static char *stringLiteral(void); +int yyerror(char *s); +static const char *stringLiteral(void); static void count(void); -static int process_pragma(char *); +static void count_char(int); +static int process_pragma(const char *); static int check_type(void); -static int isTargetKeyword(char *s); -static int checkCurrFile(char *s); +static int isTargetKeyword(const char *s); +static int checkCurrFile(const char *s); %} %x asm %% -"_asm" { +_?"_asm" { count(); - assert(asmbuff.alloc == 0 && asmbuff.len == 0 && asmbuff.buf == NULL); - dbuf_init(&asmbuff, INITIAL_INLINEASM); + if (!options.std_sdcc && yytext[1] != '_') + return check_type(); + if (asmbuff.buf == NULL) + dbuf_init(&asmbuff, INITIAL_INLINEASM); + else + dbuf_set_length(&asmbuff, 0); + BEGIN(asm); } -"_endasm" { +_?"_endasm" { count(); - yylval.yyinline = dbuf_c_str(&asmbuff); - dbuf_detach(&asmbuff); - BEGIN(INITIAL); - return (INLINEASM); + if (!options.std_sdcc && yytext[1] != '_') + { + dbuf_append_str(&asmbuff, yytext); + } + else + { + yylval.yyinline = dbuf_c_str(&asmbuff); + BEGIN(INITIAL); + return (INLINEASM); + } } \n { count(); - dbuf_append(&asmbuff, yytext, 1); + dbuf_append_char(&asmbuff, *yytext); } . { - dbuf_append(&asmbuff, yytext, 1); + dbuf_append_char(&asmbuff, *yytext); } -"at" { count(); TKEYWORD(AT); } +"at" { count(); TKEYWORDSDCC(AT); } +"__at" { count(); TKEYWORD(AT); } "auto" { count(); return(AUTO); } -"bit" { count(); TKEYWORD(BIT); } +"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); } +"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); } +"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(); TKEYWORD(DATA); } -"pdata" { count(); TKEYWORD(PDATA); } -"reentrant" { count(); TKEYWORD(REENTRANT); } -"shadowregs" { count(); TKEYWORD(SHADOWREGS); } -"wparam" { count(); TKEYWORD(WPARAM); } +"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); } @@ -132,15 +178,37 @@ static int checkCurrFile(char *s); "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); } +"xdata" { count(); TKEYWORDSDCC(XDATA); } +"__xdata" { count(); TKEYWORD(XDATA); } "..." { count(); return(VAR_ARGS); } "__typeof" { count(); return TYPEOF; } "_JavaNative" { count(); TKEYWORD(JAVANATIVE); } -"_overlay" { count(); TKEYWORD(OVERLAY); } -{L}({L}|{D})* { count(); return(check_type()); } +"_overlay" { count(); TKEYWORDSDCC(OVERLAY); } +"__overlay" { count(); TKEYWORD(OVERLAY); } +"inline" { count(); TKEYWORD99(INLINE); } +"restrict" { count(); TKEYWORD99(RESTRICT); } +{L}({L}|{D})* { + if (!options.dollars_in_ident && strchr(yytext, '$')) + { + yyerror("stray '$' in program"); + } + count(); + return(check_type()); +} +0[bB]{B}+{IS}? { + if (!options.std_sdcc) + { + yyerror("binary (0b) constants are not allowed in ISO C"); + } + count(); + yylval.val = constVal(yytext); + return(CONSTANT); +} 0[xX]{H}+{IS}? { count(); yylval.val = constVal(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); } @@ -149,16 +217,16 @@ static int checkCurrFile(char *s); {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); } -">>=" { 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 = 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(); return(RIGHT_OP); } "<<" { count(); return(LEFT_OP); } "++" { count(); return(INC_OP); } @@ -194,7 +262,7 @@ static int checkCurrFile(char *s); "^" { count(); return('^'); } "|" { count(); return('|'); } "?" { count(); return('?'); } -^#pragma.*"\n" { count(); process_pragma(yytext); } +^#pragma.*$ { count(); process_pragma(yytext); } ^(#line.*"\n")|(#.*"\n") { count(); checkCurrFile(yytext); } ^[^(]+"("[0-9]+") : error"[^\n]+ { werror(E_PRE_PROC_FAILED, yytext); count(); } @@ -204,11 +272,15 @@ static int checkCurrFile(char *s); [ \t\v\f] { count(); } \\ { int ch = input(); - if (ch != '\n') { - /* that could have been removed by the preprocessor anyway */ - werror (W_STRAY_BACKSLASH, column); - unput(ch); - } + + if (ch == '\n') + count_char(ch); + else + { + /* that could have been removed by the preprocessor anyway */ + werror (W_STRAY_BACKSLASH, column); + unput(ch); + } } . { count(); } %% @@ -219,97 +291,112 @@ static int checkCurrFile(char *s); #endif -static int checkCurrFile (char *s) +static int checkCurrFile (const char *s) { - int lNum; - char *tptr; + int lNum; + char *tptr; - /* skip '#' character */ - if (*s++ != '#') - return 0; + /* skip '#' character */ + if (*s++ != '#') + return 0; - /* check if this is a #line - this is not standard and can be removed in the future */ + /* 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; + if (strncmp(s, LINE_STR, LINE_LEN) == 0) + s += LINE_LEN; - /* get the line number */ - lNum = strtol(s, &tptr, 10); - if (tptr == s || !isspace(*tptr)) - return 0; - s = tptr; + /* get the line number */ + lNum = strtol(s, &tptr, 10); + if (tptr == s || !isspace((unsigned char)*tptr)) + return 0; + s = tptr; + + /* adjust the line number */ + lineno = lexLineno = lNum; - /* now see if we have a file name */ - while (*s != '\"' && *s) - s++; + /* now see if we have a file name */ + 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 = mylineno = lNum; + if (!*s) + { + /* no file name: return */ return 0; } - /* if we have a filename then check */ - /* if it is "standard in" if yes then */ - /* get the currentfile name info */ - s++ ; - - /* 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; + /* skip the double quote */ + ++s; + + /* get the file name and see if it is different from current one. + in c1mode fullSrcFileName is NULL */ + if (fullSrcFileName && + strncmp(s, fullSrcFileName, strlen(fullSrcFileName)) == 0 && fullSrcFileName[strlen(fullSrcFileName) - 1] == '"') + { + lexFilename = fullSrcFileName; } - filename = currFname ; - return 0; -} + else + { + const char *sb = s; + char *tmpFname; -int column = 0; -int plineIdx =0; + /* find the end of the file name */ + while (*s && *s != '"') + ++s; -static void count(void) + tmpFname = Safe_malloc(s - sb + 1); + memcpy(tmpFname, sb, s - sb); + tmpFname[s - sb] = '\0'; + + lexFilename = Safe_malloc(s - sb + 1); + copyStr(lexFilename, tmpFname); + } + filename = lexFilename; + + return 0; +} + +static void count_char(int ch) { - int i; - for (i = 0; yytext[i] != '\0'; i++) { - if (yytext[i] == '\n') { + switch (ch) + { + case '\n': column = 0; - lineno = ++mylineno; + lineno = ++lexLineno; + break; + + case '\t': + column += 8 - (column % 8); + break; + + default: + ++column; + break; } - else - if (yytext[i] == '\t') - column += 8 - (column % 8); - else - column++; - } - /* ECHO; */ +} + +static void count(void) +{ + const char *p; + + for (p = yytext; *p; ++p) + count_char(*p); } static int check_type(void) { symbol *sym = findSym(SymbolTab, NULL, yytext); + strncpyz(yylval.yychar, yytext, SDCC_NAME_MAX); + /* 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); + && SPEC_TYPEDEF (sym->etype) && findSym(TypedefTab, NULL, yytext)) return (TYPE_NAME); - } - else { - strncpyz (yylval.yychar, yytext, SDCC_NAME_MAX); + else return(IDENTIFIER); - } } /* @@ -317,111 +404,172 @@ static int check_type(void) * to support ANSI hex and octal escape sequences in string literals */ -static char *stringLiteral(void) +static const char *stringLiteral(void) { #define STR_BUF_CHUNCK_LEN 1024 int ch; - static struct dbuf_s dbuf; - char buf[2]; + static struct dbuf_s dbuf; /* reusable string literal buffer */ if (dbuf.alloc == 0) dbuf_init(&dbuf, STR_BUF_CHUNCK_LEN); else - dbuf_set_size(&dbuf, 0); + dbuf_set_length(&dbuf, 0); + + dbuf_append_char(&dbuf, '"'); - dbuf_append(&dbuf, "\"", 1); /* put into the buffer till we hit the first \" */ - while ((ch = input()) != 0) { - switch (ch) { - case '\\': - /* if it is a \ then escape char's are allowed */ + for (; ; ) + { ch = input(); - if (ch == '\n') { - /* \ is a continuator */ - lineno = ++mylineno; - column = 0; - } - else { - buf[0] = '\\'; - buf[1] = ch; - dbuf_append(&dbuf, buf, 2); /* get the escape char, no further check */ - } - break; /* carry on */ - - 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; + count_char(ch); + if (ch == EOF) + 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) { + switch (ch) + { case '\\': - if ((ch = input()) != '\n') { - werror(W_STRAY_BACKSLASH, column); - unput(ch); - } - else { - lineno = ++mylineno; - column = 0; - } - break; + /* if it is a \ then escape char's are allowed */ + ch = input(); + count_char(ch); + if (ch == '\n') + { + /* \ is a continuator */ + } + else + { + char buf[2]; + + if (ch == EOF) + goto out; + + buf[0] = '\\'; + buf[1] = ch; + dbuf_append(&dbuf, buf, 2); /* get the escape char, no further check */ + } + break; /* carry on */ case '\n': - mylineno++; + /* if new line we have a new line break, which is illegal */ + werror(W_NEWLINE_IN_STRING); + dbuf_append_char(&dbuf, '\n'); break; - } - } - - if (!ch) - goto out; - if (ch != '\"') { - unput(ch); - goto out; - } - 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_char(&dbuf, '"'); /* Pass end of this string or substring to evaluator */ + while ((ch = input()) && (isspace(ch) || ch == '\\' || ch == '#')) + { + switch (ch) + { + case '\\': + count_char(ch); + if ((ch = input()) != '\n') + { + werror(W_STRAY_BACKSLASH, column); + if (ch != EOF) + unput(ch); + else + count_char(ch); + } + else + count_char(ch); + break; + + case '\n': + count_char(ch); + break; + + case '#': + if (column == 0) + { + /* # at the beginning of the line: collect the entire line */ + struct dbuf_s linebuf; + const char *line; + + count_char(ch); + + dbuf_init(&linebuf, STR_BUF_CHUNCK_LEN); + dbuf_append_char(&linebuf, '#'); + + while ((ch = input()) != EOF && ch != '\n') + dbuf_append_char(&linebuf, (char)ch); + + if (ch == '\n') + count_char(ch); + + line = dbuf_c_str(&linebuf); + + /* process the line */ + if (startsWith(line, "#pragma")) + process_pragma(line); + else + checkCurrFile(line); + + dbuf_destroy(&linebuf); + } + else + { + unput(ch); + goto out; + } + + default: + count_char(ch); + break; + } + } + + if (ch == EOF) + goto out; + + if (ch != '"') + { + unput(ch); + goto out; + } + count_char(ch); + break; - default: - buf[0] = ch; - dbuf_append(&dbuf, buf, 1); /* Put next substring introducer into output string */ + default: + dbuf_append_char(&dbuf, (char)ch); /* Put next substring introducer into output string */ + } } - } out: - return (char *)dbuf_c_str(&dbuf); + return dbuf_c_str(&dbuf); } -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 +enum { + 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 }; @@ -509,230 +657,474 @@ static void copyAndFreeSDCCERRG(struct SDCCERRG *dest, struct SDCCERRG *src) Safe_free(src); } -static void doPragma(int op, char *cp) +/* + * returns 1 if the pragma was processed, 0 if not + */ +static int doPragma(int id, const char *name, const char *cp) { - int i; + struct pragma_token_s token; + int err = 0; + int processed = 1; - switch (op) { - case P_SAVE: - { - STACK_PUSH(options_stack, cloneOptions(&options)); - STACK_PUSH(optimize_stack, cloneOptimize(&optimize)); - STACK_PUSH(SDCCERRG_stack, cloneSDCCERRG(&_SDCCERRG)); - } - break; + init_pragma_token(&token); - case P_RESTORE: + switch (id) { - struct options *optionsp; - struct optimize *optimizep; - struct SDCCERRG *sdccerrgp; + case P_SAVE: + { + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - optionsp = STACK_POP(options_stack); - copyAndFreeOptions(&options, optionsp); + STACK_PUSH(options_stack, cloneOptions(&options)); + STACK_PUSH(optimize_stack, cloneOptimize(&optimize)); + STACK_PUSH(SDCCERRG_stack, cloneSDCCERRG(&_SDCCERRG)); + } + break; - optimizep = STACK_POP(optimize_stack); - copyAndFreeOptimize(&optimize, optimizep); + case P_RESTORE: + { + struct options *optionsp; + struct optimize *optimizep; + struct SDCCERRG *sdccerrgp; + + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - sdccerrgp = STACK_POP(SDCCERRG_stack); - copyAndFreeSDCCERRG(&_SDCCERRG, sdccerrgp); - } - break; + optionsp = STACK_POP(options_stack); + copyAndFreeOptions(&options, optionsp); - case P_NOINDUCTION: - optimize.loopInduction = 0; - break; + optimizep = STACK_POP(optimize_stack); + copyAndFreeOptimize(&optimize, optimizep); - case P_NOINVARIANT: - optimize.loopInvariant = 0; - break; + sdccerrgp = STACK_POP(SDCCERRG_stack); + copyAndFreeSDCCERRG(&_SDCCERRG, sdccerrgp); + } + break; - case P_INDUCTION: - optimize.loopInduction = 1; - break; + case P_NOINDUCTION: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - case P_STACKAUTO: - options.stackAuto = 1; - break; + optimize.loopInduction = 0; + break; - case P_NOJTBOUND: - optimize.noJTabBoundary = 1; - break; + case P_NOINVARIANT: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - case P_NOGCSE: - optimize.global_cse = 0; - break; + optimize.loopInvariant = 0; + break; - case P_NOOVERLAY: - options.noOverlay = 1; - break; + case P_INDUCTION: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - case P_LESSPEDANTIC: - options.lessPedantic = 1; - setErrorLogLevel(ERROR_LEVEL_WARNING); - break; + optimize.loopInduction = 1; + break; - case P_CALLEE_SAVES: - /* append to the functions already listed - in callee-saves */ - setParseWithComma(&options.calleeSavesSet, cp); - break; + case P_STACKAUTO: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - case P_EXCLUDE: - { - deleteSet(&options.excludeRegsSet); - setParseWithComma(&options.excludeRegsSet, cp); - } - break; + options.stackAuto = 1; + break; - case P_NOIV: - options.noiv = 1; - break; + case P_NOJTBOUND: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } - case P_LOOPREV: - optimize.noLoopReverse = 1; - break; + optimize.noJTabBoundary = 1; + break; - case P_OVERLAY_: - break; /* notyet */ + case P_NOGCSE: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } + + optimize.global_cse = 0; + break; + + case P_NOOVERLAY: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } + + options.noOverlay = 1; + break; + + case P_LESSPEDANTIC: + cp = get_pragma_token(cp, &token); + if (TOKEN_EOL != token.type) + { + err = 1; + break; + } + + 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); + err = -1; + break; - case P_DISABLEWARN: - if (sscanf(cp, "%d", &i) && (iprocess_pragma && !port->process_pragma(cp)) - return 0; - - for (i = 0; i < NELEM(pragma_tbl); i++) + for (i = 0; NULL != pragma_tbl[i].name; ++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 (strcmp(get_pragma_string(&token), pragma_tbl[i].name) == 0) { if (pragma_tbl[i].deprecated != 0) werror(W_DEPRECATED_PRAGMA, pragma_tbl[i].name); - doPragma(pragma_tbl[i].id, s); - return 0; + ret = (*pragma_tbl[i].func)(pragma_tbl[i].id, pragma_tbl[i].name, s); + break; } } - werror(W_UNKNOWN_PRAGMA, cp); - return 0; + free_pragma_token(&token); + return ret; +} + +static int process_pragma(const char *s) +{ + struct pragma_token_s token; + + init_pragma_token(&token); + + s = get_pragma_token(s, &token); + if (0 != strcmp("#pragma", get_pragma_string(&token))) + { + /* Oops, womething went totally wrong - internal error */ + wassertl(0, "pragma parser internal error"); + } + + /* skip spaces */ + while ('\n' != *s && isspace((unsigned char)*s)) + ++s; + + /* First give the port a chance */ + if (port->process_pragma && port->process_pragma(s)) + return 1; + + if (process_pragma_tbl(pragma_tbl, s)) + { + return 1; + } + else + { + werror(W_UNKNOWN_PRAGMA, s); + return 0; + } } /* will return 1 if the string is a part of a target specific keyword */ -static int isTargetKeyword(char *s) +static int isTargetKeyword(const 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; - } - 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; } int yywrap(void) @@ -747,16 +1139,13 @@ int yyerror(char *s) { 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 */ - } + if(options.vc_err_style) + fprintf(stderr, "\n%s(%d) : %s: token -> '%s' ; column %d\n", + lexFilename, lexLineno, s, yytext, column); + else + fprintf(stderr, "\n%s:%d: %s: token -> '%s' ; column %d\n", + lexFilename, lexLineno, s ,yytext, column); + fatalError++; + return 0; }