diff options
Diffstat (limited to 'arch/powerpc/boot/dtc-src/dtc-lexer.l')
-rw-r--r-- | arch/powerpc/boot/dtc-src/dtc-lexer.l | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/arch/powerpc/boot/dtc-src/dtc-lexer.l b/arch/powerpc/boot/dtc-src/dtc-lexer.l deleted file mode 100644 index 44dbfd3f097..00000000000 --- a/arch/powerpc/boot/dtc-src/dtc-lexer.l +++ /dev/null @@ -1,320 +0,0 @@ -/* - * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. - * - * - * 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 of the - * License, 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 - */ - -%option noyywrap nounput yylineno - -%x INCLUDE -%x BYTESTRING -%x PROPNODENAME -%s V1 - -PROPNODECHAR [a-zA-Z0-9,._+*#?@-] -PATHCHAR ({PROPNODECHAR}|[/]) -LABEL [a-zA-Z_][a-zA-Z0-9_]* -STRING \"([^\\"]|\\.)*\" -WS [[:space:]] -COMMENT "/*"([^*]|\*+[^*/])*\*+"/" -LINECOMMENT "//".*\n - -%{ -#include "dtc.h" -#include "srcpos.h" -#include "dtc-parser.tab.h" - - -/*#define LEXDEBUG 1*/ - -#ifdef LEXDEBUG -#define DPRINT(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__) -#else -#define DPRINT(fmt, ...) do { } while (0) -#endif - -static int dts_version; /* = 0 */ - -#define BEGIN_DEFAULT() if (dts_version == 0) { \ - DPRINT("<INITIAL>\n"); \ - BEGIN(INITIAL); \ - } else { \ - DPRINT("<V1>\n"); \ - BEGIN(V1); \ - } - -static void push_input_file(const char *filename); -static int pop_input_file(void); -%} - -%% -<*>"/include/"{WS}*{STRING} { - char *name = strchr(yytext, '\"') + 1; - yytext[yyleng-1] = '\0'; - push_input_file(name); - } - -<*><<EOF>> { - if (!pop_input_file()) { - yyterminate(); - } - } - -<*>{STRING} { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("String: %s\n", yytext); - yylval.data = data_copy_escape_string(yytext+1, - yyleng-2); - yylloc.first_line = yylineno; - return DT_STRING; - } - -<*>"/dts-v1/" { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Keyword: /dts-v1/\n"); - dts_version = 1; - BEGIN_DEFAULT(); - return DT_V1; - } - -<*>"/memreserve/" { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Keyword: /memreserve/\n"); - BEGIN_DEFAULT(); - return DT_MEMRESERVE; - } - -<*>{LABEL}: { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Label: %s\n", yytext); - yylval.labelref = strdup(yytext); - yylval.labelref[yyleng-1] = '\0'; - return DT_LABEL; - } - -<INITIAL>[bodh]# { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - if (*yytext == 'b') - yylval.cbase = 2; - else if (*yytext == 'o') - yylval.cbase = 8; - else if (*yytext == 'd') - yylval.cbase = 10; - else - yylval.cbase = 16; - DPRINT("Base: %d\n", yylval.cbase); - return DT_BASE; - } - -<INITIAL>[0-9a-fA-F]+ { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - yylval.literal = strdup(yytext); - DPRINT("Literal: '%s'\n", yylval.literal); - return DT_LEGACYLITERAL; - } - -<V1>[0-9]+|0[xX][0-9a-fA-F]+ { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - yylval.literal = strdup(yytext); - DPRINT("Literal: '%s'\n", yylval.literal); - return DT_LITERAL; - } - -\&{LABEL} { /* label reference */ - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Ref: %s\n", yytext+1); - yylval.labelref = strdup(yytext+1); - return DT_REF; - } - -"&{/"{PATHCHAR}+\} { /* new-style path reference */ - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - yytext[yyleng-1] = '\0'; - DPRINT("Ref: %s\n", yytext+2); - yylval.labelref = strdup(yytext+2); - return DT_REF; - } - -<INITIAL>"&/"{PATHCHAR}+ { /* old-style path reference */ - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Ref: %s\n", yytext+1); - yylval.labelref = strdup(yytext+1); - return DT_REF; - } - -<BYTESTRING>[0-9a-fA-F]{2} { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - yylval.byte = strtol(yytext, NULL, 16); - DPRINT("Byte: %02x\n", (int)yylval.byte); - return DT_BYTE; - } - -<BYTESTRING>"]" { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("/BYTESTRING\n"); - BEGIN_DEFAULT(); - return ']'; - } - -<PROPNODENAME>{PROPNODECHAR}+ { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("PropNodeName: %s\n", yytext); - yylval.propnodename = strdup(yytext); - BEGIN_DEFAULT(); - return DT_PROPNODENAME; - } - -"/incbin/" { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Binary Include\n"); - return DT_INCBIN; - } - -<*>{WS}+ /* eat whitespace */ -<*>{COMMENT}+ /* eat C-style comments */ -<*>{LINECOMMENT}+ /* eat C++-style comments */ - -<*>. { - yylloc.file = srcpos_file; - yylloc.first_line = yylineno; - DPRINT("Char: %c (\\x%02x)\n", yytext[0], - (unsigned)yytext[0]); - if (yytext[0] == '[') { - DPRINT("<BYTESTRING>\n"); - BEGIN(BYTESTRING); - } - if ((yytext[0] == '{') - || (yytext[0] == ';')) { - DPRINT("<PROPNODENAME>\n"); - BEGIN(PROPNODENAME); - } - return yytext[0]; - } - -%% - - -/* - * Stack of nested include file contexts. - */ - -struct incl_file { - struct dtc_file *file; - YY_BUFFER_STATE yy_prev_buf; - int yy_prev_lineno; - struct incl_file *prev; -}; - -static struct incl_file *incl_file_stack; - - -/* - * Detect infinite include recursion. - */ -#define MAX_INCLUDE_DEPTH (100) - -static int incl_depth = 0; - - -static void push_input_file(const char *filename) -{ - struct incl_file *incl_file; - struct dtc_file *newfile; - struct search_path search, *searchptr = NULL; - - assert(filename); - - 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; - } - - newfile = dtc_open_file(filename, searchptr); - - 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->file = srcpos_file; - incl_file->prev = incl_file_stack; - - incl_file_stack = incl_file; - - /* - * Establish new context. - */ - srcpos_file = newfile; - yylineno = 1; - yyin = newfile->file; - yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE)); -} - - -static int pop_input_file(void) -{ - struct incl_file *incl_file; - - if (incl_file_stack == 0) - return 0; - - dtc_close_file(srcpos_file); - - /* - * Pop. - */ - --incl_depth; - incl_file = incl_file_stack; - incl_file_stack = incl_file->prev; - - /* - * Recover old context. - */ - yy_delete_buffer(YY_CURRENT_BUFFER); - yy_switch_to_buffer(incl_file->yy_prev_buf); - yylineno = incl_file->yy_prev_lineno; - srcpos_file = incl_file->file; - yyin = incl_file->file ? incl_file->file->file : NULL; - - /* - * Free old state. - */ - free(incl_file); - - return 1; -} |