1 files changed, 54 insertions, 18 deletions

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 6d81e5e..1471630 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -1,23 +1,23 @@
-%option backup nostdinit noyywrap full ecs
+%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"
-#include "zconf.tab.h"
 
         #define START_STRSIZE16
 
 char *text;
 static char *text_ptr;
 static int text_size, text_asize;
@@ -80,14 +80,12 @@ n	[A-Za-z0-9_]
         [ \t]+{
         BEGIN(COMMAND);
 }
 
         .{
         unput(yytext[0]);
-        //printf("new config: ");
-        //symbol_end(NULL);
         BEGIN(COMMAND);
 }
 
 
 <COMMAND>{
                 "mainmenu"      BEGIN(PARAM); return T_MAINMENU;
@@ -140,38 +138,52 @@ n	[A-Za-z0-9_]
                 ---/* ignore */
                 ({n}|[-/.])+{
                 alloc_string(yytext, yyleng);
                 zconflval.string = text;
                 return T_WORD;
         }
+                \\\ncurrent_file->lineno++;
         .
+        <<EOF>> {
+                BEGIN(INITIAL);
+        }
 }
 
 <STRING>{
-                [^'"\n\\]+{
+                [^'"\\\n]+/\n{
+                append_string(yytext, yyleng);
+                zconflval.string = text;
+                return T_STRING;
+        }
+                [^'"\\\n]+{
                 append_string(yytext, yyleng);
         }
+                \\.?/\n{
+                append_string(yytext + 1, yyleng - 1);
+                zconflval.string = text;
+                return T_STRING;
+        }
+                \\.?{
+                append_string(yytext + 1, yyleng - 1);
+        }
                 \'|\"{
                 if (str == yytext[0]) {
                         BEGIN(PARAM);
                         zconflval.string = text;
-                        //printf("s:%s\n", text);
                         return T_STRING;
                 } else
                         append_string(yytext, 1);
         }
-                \\[ \t]*\nappend_string(yytext+yyleng-1, 1); current_file->lineno++;
-                \\[ \t]*append_string(yytext+1, yyleng-1);
-                \\.     append_string(yytext+1, 1);
                 \n{
-                //printf(":%d: open string!\n", current_file->lineno+1);
-                exit(0);
+                printf("%s:%d:warning: multi-line strings not supported\n", zconf_curname(), zconf_lineno());
+                current_file->lineno++;
+                BEGIN(INITIAL);
+                return T_EOL;
         }
                 <<EOF>>{
-                //printf(":%d: open string!\n", current_file->lineno+1);
-                exit(0);
+                BEGIN(INITIAL);
         }
 }
 
 <HELP>{
                 [ \t]+{
                 ts = 0;
@@ -218,12 +230,13 @@ n	[A-Za-z0-9_]
 
         <<EOF>>{
         if (current_buf) {
                 zconf_endfile();
                 return T_EOF;
         }
+        fclose(yyin);
         yyterminate();
 }
 
 %%
 void zconf_starthelp(void)
 {
@@ -235,20 +248,44 @@ void zconf_starthelp(void)
 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[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 = fopen(name, "r");
+        yyin = zconf_fopen(name);
         if (!yyin) {
                 printf("can't find file %s\n", name);
                 exit(1);
         }
-        //fprintf(stderr, "zconf_initscan: %s\n", name);
 
         current_buf = malloc(sizeof(*current_buf));
         memset(current_buf, 0, sizeof(*current_buf));
 
         current_file = file_lookup(name);
         current_file->lineno = 1;
@@ -259,23 +296,21 @@ 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 = fopen(name, "r");
+        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;
 
-        //fprintf(stderr, "zconf_nextfile: %s\n", name);
-
         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);
@@ -294,12 +329,13 @@ static struct buffer *zconf_endfile(void)
         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;