X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fpowerpc%2Fboot%2Fdtc-src%2Fdtc-lexer.l;h=44dbfd3f097650c139476571348655066a1006c2;hb=ed95d7450dcbfeb45ffc9d39b1747aee82b49a51;hp=c811b221b31e26ac827955918d53000ccf9e8ea6;hpb=0ec27c049d80535f77901654a310b090106b046c;p=linux-2.6-omap-h63xx.git diff --git a/arch/powerpc/boot/dtc-src/dtc-lexer.l b/arch/powerpc/boot/dtc-src/dtc-lexer.l index c811b221b31..44dbfd3f097 100644 --- a/arch/powerpc/boot/dtc-src/dtc-lexer.l +++ b/arch/powerpc/boot/dtc-src/dtc-lexer.l @@ -28,6 +28,10 @@ PROPNODECHAR [a-zA-Z0-9,._+*#?@-] PATHCHAR ({PROPNODECHAR}|[/]) LABEL [a-zA-Z_][a-zA-Z0-9_]* +STRING \"([^\\"]|\\.)*\" +WS [[:space:]] +COMMENT "/*"([^*]|\*+[^*/])*\*+"/" +LINECOMMENT "//".*\n %{ #include "dtc.h" @@ -52,29 +56,26 @@ static int dts_version; /* = 0 */ DPRINT("\n"); \ BEGIN(V1); \ } + +static void push_input_file(const char *filename); +static int pop_input_file(void); %} %% -<*>"/include/" BEGIN(INCLUDE); - -\"[^"\n]*\" { - yytext[strlen(yytext) - 1] = 0; - if (!push_input_file(yytext + 1)) { - /* Some unrecoverable error.*/ - exit(1); - } - BEGIN_DEFAULT(); +<*>"/include/"{WS}*{STRING} { + char *name = strchr(yytext, '\"') + 1; + yytext[yyleng-1] = '\0'; + push_input_file(name); } - <*><> { if (!pop_input_file()) { yyterminate(); } } -<*>\"([^\\"]|\\.)*\" { - yylloc.filenum = srcpos_filenum; +<*>{STRING} { + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("String: %s\n", yytext); yylval.data = data_copy_escape_string(yytext+1, @@ -84,7 +85,7 @@ static int dts_version; /* = 0 */ } <*>"/dts-v1/" { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Keyword: /dts-v1/\n"); dts_version = 1; @@ -93,7 +94,7 @@ static int dts_version; /* = 0 */ } <*>"/memreserve/" { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Keyword: /memreserve/\n"); BEGIN_DEFAULT(); @@ -101,7 +102,7 @@ static int dts_version; /* = 0 */ } <*>{LABEL}: { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Label: %s\n", yytext); yylval.labelref = strdup(yytext); @@ -110,7 +111,7 @@ static int dts_version; /* = 0 */ } [bodh]# { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; if (*yytext == 'b') yylval.cbase = 2; @@ -125,7 +126,7 @@ static int dts_version; /* = 0 */ } [0-9a-fA-F]+ { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; yylval.literal = strdup(yytext); DPRINT("Literal: '%s'\n", yylval.literal); @@ -133,7 +134,7 @@ static int dts_version; /* = 0 */ } [0-9]+|0[xX][0-9a-fA-F]+ { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; yylval.literal = strdup(yytext); DPRINT("Literal: '%s'\n", yylval.literal); @@ -141,7 +142,7 @@ static int dts_version; /* = 0 */ } \&{LABEL} { /* label reference */ - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Ref: %s\n", yytext+1); yylval.labelref = strdup(yytext+1); @@ -149,7 +150,7 @@ static int dts_version; /* = 0 */ } "&{/"{PATHCHAR}+\} { /* new-style path reference */ - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; yytext[yyleng-1] = '\0'; DPRINT("Ref: %s\n", yytext+2); @@ -158,7 +159,7 @@ static int dts_version; /* = 0 */ } "&/"{PATHCHAR}+ { /* old-style path reference */ - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Ref: %s\n", yytext+1); yylval.labelref = strdup(yytext+1); @@ -166,7 +167,7 @@ static int dts_version; /* = 0 */ } [0-9a-fA-F]{2} { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; yylval.byte = strtol(yytext, NULL, 16); DPRINT("Byte: %02x\n", (int)yylval.byte); @@ -174,7 +175,7 @@ static int dts_version; /* = 0 */ } "]" { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("/BYTESTRING\n"); BEGIN_DEFAULT(); @@ -182,7 +183,7 @@ static int dts_version; /* = 0 */ } {PROPNODECHAR}+ { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("PropNodeName: %s\n", yytext); yylval.propnodename = strdup(yytext); @@ -190,20 +191,19 @@ static int dts_version; /* = 0 */ return DT_PROPNODENAME; } - -<*>[[:space:]]+ /* eat whitespace */ - -<*>"/*"([^*]|\*+[^*/])*\*+"/" { - yylloc.filenum = srcpos_filenum; +"/incbin/" { + yylloc.file = srcpos_file; yylloc.first_line = yylineno; - DPRINT("Comment: %s\n", yytext); - /* eat comments */ + DPRINT("Binary Include\n"); + return DT_INCBIN; } -<*>"//".*\n /* eat line comments */ +<*>{WS}+ /* eat whitespace */ +<*>{COMMENT}+ /* eat C-style comments */ +<*>{LINECOMMENT}+ /* eat C++-style comments */ <*>. { - yylloc.filenum = srcpos_filenum; + yylloc.file = srcpos_file; yylloc.first_line = yylineno; DPRINT("Char: %c (\\x%02x)\n", yytext[0], (unsigned)yytext[0]); @@ -227,14 +227,13 @@ static int dts_version; /* = 0 */ */ struct incl_file { - int filenum; - FILE *file; + struct dtc_file *file; YY_BUFFER_STATE yy_prev_buf; int yy_prev_lineno; struct incl_file *prev; }; -struct incl_file *incl_file_stack; +static struct incl_file *incl_file_stack; /* @@ -245,36 +244,34 @@ struct incl_file *incl_file_stack; static int incl_depth = 0; -int push_input_file(const char *filename) +static void push_input_file(const char *filename) { - FILE *f; struct incl_file *incl_file; + struct dtc_file *newfile; + struct search_path search, *searchptr = NULL; - if (!filename) { - yyerror("No include file name given."); - return 0; - } + assert(filename); - if (incl_depth++ >= MAX_INCLUDE_DEPTH) { - yyerror("Includes nested too deeply"); - return 0; + if (incl_depth++ >= MAX_INCLUDE_DEPTH) + die("Includes nested too deeply"); + + if (srcpos_file) { + search.dir = srcpos_file->dir; + search.next = NULL; + search.prev = NULL; + searchptr = &search; } - f = dtc_open_file(filename); + newfile = dtc_open_file(filename, searchptr); - incl_file = malloc(sizeof(struct incl_file)); - if (!incl_file) { - yyerror("Can not allocate include file space."); - return 0; - } + incl_file = xmalloc(sizeof(struct incl_file)); /* * Save current context. */ incl_file->yy_prev_buf = YY_CURRENT_BUFFER; incl_file->yy_prev_lineno = yylineno; - incl_file->filenum = srcpos_filenum; - incl_file->file = yyin; + incl_file->file = srcpos_file; incl_file->prev = incl_file_stack; incl_file_stack = incl_file; @@ -282,23 +279,21 @@ int push_input_file(const char *filename) /* * Establish new context. */ - srcpos_filenum = lookup_file_name(filename, 0); + srcpos_file = newfile; yylineno = 1; - yyin = f; + yyin = newfile->file; yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); - - return 1; } -int pop_input_file(void) +static int pop_input_file(void) { struct incl_file *incl_file; if (incl_file_stack == 0) return 0; - fclose(yyin); + dtc_close_file(srcpos_file); /* * Pop. @@ -313,16 +308,13 @@ int pop_input_file(void) yy_delete_buffer(YY_CURRENT_BUFFER); yy_switch_to_buffer(incl_file->yy_prev_buf); yylineno = incl_file->yy_prev_lineno; - srcpos_filenum = incl_file->filenum; - yyin = incl_file->file; + srcpos_file = incl_file->file; + yyin = incl_file->file ? incl_file->file->file : NULL; /* * Free old state. */ free(incl_file); - if (YY_CURRENT_BUFFER == 0) - return 0; - return 1; }