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path: root/payloads/libpayload/util/kconfig/zconf.l
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Diffstat (limited to 'payloads/libpayload/util/kconfig/zconf.l')
-rw-r--r--payloads/libpayload/util/kconfig/zconf.l355
1 files changed, 0 insertions, 355 deletions
diff --git a/payloads/libpayload/util/kconfig/zconf.l b/payloads/libpayload/util/kconfig/zconf.l
deleted file mode 100644
index 4cea5c85cd..0000000000
--- a/payloads/libpayload/util/kconfig/zconf.l
+++ /dev/null
@@ -1,355 +0,0 @@
-%option backup nostdinit noyywrap never-interactive full ecs
-%option 8bit backup nodefault perf-report perf-report
-%x COMMAND HELP STRING PARAM
-%{
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#define LKC_DIRECT_LINK
-#include "lkc.h"
-
-#define START_STRSIZE 16
-
-static struct {
- struct file *file;
- int lineno;
-} current_pos;
-
-static char *text;
-static int text_size, text_asize;
-
-struct buffer {
- struct buffer *parent;
- YY_BUFFER_STATE state;
-};
-
-struct buffer *current_buf;
-
-static int last_ts, first_ts;
-
-static void zconf_endhelp(void);
-static void zconf_endfile(void);
-
-void new_string(void)
-{
- text = malloc(START_STRSIZE);
- text_asize = START_STRSIZE;
- text_size = 0;
- *text = 0;
-}
-
-void append_string(const char *str, int size)
-{
- int new_size = text_size + size + 1;
- if (new_size > text_asize) {
- new_size += START_STRSIZE - 1;
- new_size &= -START_STRSIZE;
- text = realloc(text, new_size);
- text_asize = new_size;
- }
- memcpy(text + text_size, str, size);
- text_size += size;
- text[text_size] = 0;
-}
-
-void alloc_string(const char *str, int size)
-{
- text = malloc(size + 1);
- memcpy(text, str, size);
- text[size] = 0;
-}
-%}
-
-ws [ \n\t]
-n [A-Za-z0-9_]
-
-%%
- int str = 0;
- int ts, i;
-
-[ \t]*#.*\n |
-[ \t]*\n {
- current_file->lineno++;
- return T_EOL;
-}
-[ \t]*#.*
-
-
-[ \t]+ {
- BEGIN(COMMAND);
-}
-
-. {
- unput(yytext[0]);
- BEGIN(COMMAND);
-}
-
-
-<COMMAND>{
- {n}+ {
- struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
- BEGIN(PARAM);
- current_pos.file = current_file;
- current_pos.lineno = current_file->lineno;
- if (id && id->flags & TF_COMMAND) {
- zconflval.id = id;
- return id->token;
- }
- alloc_string(yytext, yyleng);
- zconflval.string = text;
- return T_WORD;
- }
- .
- \n {
- BEGIN(INITIAL);
- current_file->lineno++;
- return T_EOL;
- }
-}
-
-<PARAM>{
- "&&" return T_AND;
- "||" return T_OR;
- "(" return T_OPEN_PAREN;
- ")" return T_CLOSE_PAREN;
- "!" return T_NOT;
- "=" return T_EQUAL;
- "!=" return T_UNEQUAL;
- \"|\' {
- str = yytext[0];
- new_string();
- BEGIN(STRING);
- }
- \n BEGIN(INITIAL); current_file->lineno++; return T_EOL;
- --- /* ignore */
- ({n}|[-/.])+ {
- struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
- if (id && id->flags & TF_PARAM) {
- zconflval.id = id;
- return id->token;
- }
- alloc_string(yytext, yyleng);
- zconflval.string = text;
- return T_WORD;
- }
- #.* /* comment */
- \\\n current_file->lineno++;
- .
- <<EOF>> {
- BEGIN(INITIAL);
- }
-}
-
-<STRING>{
- [^'"\\\n]+/\n {
- append_string(yytext, yyleng);
- zconflval.string = text;
- return T_WORD_QUOTE;
- }
- [^'"\\\n]+ {
- append_string(yytext, yyleng);
- }
- \\.?/\n {
- append_string(yytext + 1, yyleng - 1);
- zconflval.string = text;
- return T_WORD_QUOTE;
- }
- \\.? {
- append_string(yytext + 1, yyleng - 1);
- }
- \'|\" {
- if (str == yytext[0]) {
- BEGIN(PARAM);
- zconflval.string = text;
- return T_WORD_QUOTE;
- } else
- append_string(yytext, 1);
- }
- \n {
- printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
- current_file->lineno++;
- BEGIN(INITIAL);
- return T_EOL;
- }
- <<EOF>> {
- BEGIN(INITIAL);
- }
-}
-
-<HELP>{
- [ \t]+ {
- ts = 0;
- for (i = 0; i < yyleng; i++) {
- if (yytext[i] == '\t')
- ts = (ts & ~7) + 8;
- else
- ts++;
- }
- last_ts = ts;
- if (first_ts) {
- if (ts < first_ts) {
- zconf_endhelp();
- return T_HELPTEXT;
- }
- ts -= first_ts;
- while (ts > 8) {
- append_string(" ", 8);
- ts -= 8;
- }
- append_string(" ", ts);
- }
- }
- [ \t]*\n/[^ \t\n] {
- current_file->lineno++;
- zconf_endhelp();
- return T_HELPTEXT;
- }
- [ \t]*\n {
- current_file->lineno++;
- append_string("\n", 1);
- }
- [^ \t\n].* {
- while (yyleng) {
- if ((yytext[yyleng-1] != ' ') && (yytext[yyleng-1] != '\t'))
- break;
- yyleng--;
- }
- append_string(yytext, yyleng);
- if (!first_ts)
- first_ts = last_ts;
- }
- <<EOF>> {
- zconf_endhelp();
- return T_HELPTEXT;
- }
-}
-
-<<EOF>> {
- if (current_file) {
- zconf_endfile();
- return T_EOL;
- }
- fclose(yyin);
- yyterminate();
-}
-
-%%
-void zconf_starthelp(void)
-{
- new_string();
- last_ts = first_ts = 0;
- BEGIN(HELP);
-}
-
-static void zconf_endhelp(void)
-{
- zconflval.string = text;
- BEGIN(INITIAL);
-}
-
-
-/*
- * Try to open specified file with following names:
- * ./name
- * $(srctree)/name
- * The latter is used when srctree is separate from objtree
- * when compiling the kernel.
- * Return NULL if file is not found.
- */
-FILE *zconf_fopen(const char *name)
-{
- char *env, fullname[PATH_MAX+1];
- FILE *f;
-
- f = fopen(name, "r");
- if (!f && name != NULL && name[0] != '/') {
- env = getenv(SRCTREE);
- if (env) {
- sprintf(fullname, "%s/%s", env, name);
- f = fopen(fullname, "r");
- }
- }
- return f;
-}
-
-void zconf_initscan(const char *name)
-{
- yyin = zconf_fopen(name);
- if (!yyin) {
- printf("can't find file %s\n", name);
- exit(1);
- }
-
- current_buf = malloc(sizeof(*current_buf));
- memset(current_buf, 0, sizeof(*current_buf));
-
- current_file = file_lookup(name);
- current_file->lineno = 1;
- current_file->flags = FILE_BUSY;
-}
-
-void zconf_nextfile(const char *name)
-{
- struct file *file = file_lookup(name);
- struct buffer *buf = malloc(sizeof(*buf));
- memset(buf, 0, sizeof(*buf));
-
- current_buf->state = YY_CURRENT_BUFFER;
- yyin = zconf_fopen(name);
- if (!yyin) {
- printf("%s:%d: can't open file \"%s\"\n", zconf_curname(), zconf_lineno(), name);
- exit(1);
- }
- yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
- buf->parent = current_buf;
- current_buf = buf;
-
- if (file->flags & FILE_BUSY) {
- printf("recursive scan (%s)?\n", name);
- exit(1);
- }
- if (file->flags & FILE_SCANNED) {
- printf("file %s already scanned?\n", name);
- exit(1);
- }
- file->flags |= FILE_BUSY;
- file->lineno = 1;
- file->parent = current_file;
- current_file = file;
-}
-
-static void zconf_endfile(void)
-{
- struct buffer *parent;
-
- current_file->flags |= FILE_SCANNED;
- current_file->flags &= ~FILE_BUSY;
- current_file = current_file->parent;
-
- parent = current_buf->parent;
- if (parent) {
- fclose(yyin);
- yy_delete_buffer(YY_CURRENT_BUFFER);
- yy_switch_to_buffer(parent->state);
- }
- free(current_buf);
- current_buf = parent;
-}
-
-int zconf_lineno(void)
-{
- return current_pos.lineno;
-}
-
-char *zconf_curname(void)
-{
- return current_pos.file ? current_pos.file->name : "<none>";
-}
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