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path: root/scripts/kconfig/zconf.l
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Diffstat (limited to 'scripts/kconfig/zconf.l')
-rw-r--r--scripts/kconfig/zconf.l165
1 files changed, 81 insertions, 84 deletions
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 55517b2877c..6c62d93b4ff 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -1,5 +1,6 @@
-%option backup nostdinit noyywrap never-interactive full ecs
-%option 8bit backup nodefault perf-report perf-report
+%option nostdinit noyywrap never-interactive full ecs
+%option 8bit nodefault perf-report perf-report
+%option noinput
%x COMMAND HELP STRING PARAM
%{
/*
@@ -13,18 +14,21 @@
#include <string.h>
#include <unistd.h>
-#define LKC_DIRECT_LINK
#include "lkc.h"
#define START_STRSIZE 16
-char *text;
-static char *text_ptr;
+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 *parent;
+ YY_BUFFER_STATE state;
};
struct buffer *current_buf;
@@ -32,50 +36,51 @@ struct buffer *current_buf;
static int last_ts, first_ts;
static void zconf_endhelp(void);
-static struct buffer *zconf_endfile(void);
+static void zconf_endfile(void);
-void new_string(void)
+static void new_string(void)
{
- text = malloc(START_STRSIZE);
+ text = xmalloc(START_STRSIZE);
text_asize = START_STRSIZE;
- text_ptr = text;
text_size = 0;
- *text_ptr = 0;
+ *text = 0;
}
-void append_string(const char *str, int size)
+static 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;
- text_ptr = text + text_size;
}
- memcpy(text_ptr, str, size);
- text_ptr += size;
+ memcpy(text + text_size, str, size);
text_size += size;
- *text_ptr = 0;
+ text[text_size] = 0;
}
-void alloc_string(const char *str, int size)
+static void alloc_string(const char *str, int size)
{
- text = malloc(size + 1);
+ text = xmalloc(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 current_file->lineno++;
+[ \t]*#.*\n |
+[ \t]*\n {
+ current_file->lineno++;
+ return T_EOL;
+}
[ \t]*#.*
-[ \t]*\n current_file->lineno++; return T_EOL;
[ \t]+ {
BEGIN(COMMAND);
@@ -88,42 +93,25 @@ n [A-Za-z0-9_]
<COMMAND>{
- "mainmenu" BEGIN(PARAM); return T_MAINMENU;
- "menu" BEGIN(PARAM); return T_MENU;
- "endmenu" BEGIN(PARAM); return T_ENDMENU;
- "source" BEGIN(PARAM); return T_SOURCE;
- "choice" BEGIN(PARAM); return T_CHOICE;
- "endchoice" BEGIN(PARAM); return T_ENDCHOICE;
- "comment" BEGIN(PARAM); return T_COMMENT;
- "config" BEGIN(PARAM); return T_CONFIG;
- "menuconfig" BEGIN(PARAM); return T_MENUCONFIG;
- "help" BEGIN(PARAM); return T_HELP;
- "if" BEGIN(PARAM); return T_IF;
- "endif" BEGIN(PARAM); return T_ENDIF;
- "depends" BEGIN(PARAM); return T_DEPENDS;
- "requires" BEGIN(PARAM); return T_REQUIRES;
- "optional" BEGIN(PARAM); return T_OPTIONAL;
- "default" BEGIN(PARAM); return T_DEFAULT;
- "prompt" BEGIN(PARAM); return T_PROMPT;
- "tristate" BEGIN(PARAM); return T_TRISTATE;
- "def_tristate" BEGIN(PARAM); return T_DEF_TRISTATE;
- "bool" BEGIN(PARAM); return T_BOOLEAN;
- "boolean" BEGIN(PARAM); return T_BOOLEAN;
- "def_bool" BEGIN(PARAM); return T_DEF_BOOLEAN;
- "def_boolean" BEGIN(PARAM); return T_DEF_BOOLEAN;
- "int" BEGIN(PARAM); return T_INT;
- "hex" BEGIN(PARAM); return T_HEX;
- "string" BEGIN(PARAM); return T_STRING;
- "select" BEGIN(PARAM); return T_SELECT;
- "enable" BEGIN(PARAM); return T_SELECT;
- "range" BEGIN(PARAM); return T_RANGE;
{n}+ {
+ const 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 current_file->lineno++; BEGIN(INITIAL);
+ \n {
+ BEGIN(INITIAL);
+ current_file->lineno++;
+ return T_EOL;
+ }
}
<PARAM>{
@@ -134,8 +122,6 @@ n [A-Za-z0-9_]
"!" return T_NOT;
"=" return T_EQUAL;
"!=" return T_UNEQUAL;
- "if" return T_IF;
- "on" return T_ON;
\"|\' {
str = yytext[0];
new_string();
@@ -144,6 +130,11 @@ n [A-Za-z0-9_]
\n BEGIN(INITIAL); current_file->lineno++; return T_EOL;
--- /* ignore */
({n}|[-/.])+ {
+ const 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;
@@ -225,6 +216,11 @@ n [A-Za-z0-9_]
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;
@@ -236,9 +232,9 @@ n [A-Za-z0-9_]
}
<<EOF>> {
- if (current_buf) {
+ if (current_file) {
zconf_endfile();
- return T_EOF;
+ return T_EOL;
}
fclose(yyin);
yyterminate();
@@ -273,7 +269,7 @@ FILE *zconf_fopen(const char *name)
FILE *f;
f = fopen(name, "r");
- if (!f && name[0] != '/') {
+ if (!f && name != NULL && name[0] != '/') {
env = getenv(SRCTREE);
if (env) {
sprintf(fullname, "%s/%s", env, name);
@@ -291,50 +287,59 @@ void zconf_initscan(const char *name)
exit(1);
}
- current_buf = malloc(sizeof(*current_buf));
+ current_buf = xmalloc(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 *iter;
struct file *file = file_lookup(name);
- struct buffer *buf = malloc(sizeof(*buf));
+ struct buffer *buf = xmalloc(sizeof(*buf));
memset(buf, 0, sizeof(*buf));
current_buf->state = YY_CURRENT_BUFFER;
- yyin = zconf_fopen(name);
+ yyin = zconf_fopen(file->name);
if (!yyin) {
- printf("%s:%d: can't open file \"%s\"\n", zconf_curname(), zconf_lineno(), name);
+ printf("%s:%d: can't open file \"%s\"\n",
+ zconf_curname(), zconf_lineno(), file->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);
+ for (iter = current_file->parent; iter; iter = iter->parent ) {
+ if (!strcmp(current_file->name,iter->name) ) {
+ printf("%s:%d: recursive inclusion detected. "
+ "Inclusion path:\n current file : '%s'\n",
+ zconf_curname(), zconf_lineno(),
+ zconf_curname());
+ iter = current_file->parent;
+ while (iter && \
+ strcmp(iter->name,current_file->name)) {
+ printf(" included from: '%s:%d'\n",
+ iter->name, iter->lineno-1);
+ iter = iter->parent;
+ }
+ if (iter)
+ printf(" included from: '%s:%d'\n",
+ iter->name, iter->lineno+1);
+ exit(1);
+ }
}
- file->flags |= FILE_BUSY;
file->lineno = 1;
file->parent = current_file;
current_file = file;
}
-static struct buffer *zconf_endfile(void)
+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;
@@ -345,22 +350,14 @@ static struct buffer *zconf_endfile(void)
}
free(current_buf);
current_buf = parent;
-
- return parent;
}
int zconf_lineno(void)
{
- if (current_buf)
- return current_file->lineno - 1;
- else
- return 0;
+ return current_pos.lineno;
}
-char *zconf_curname(void)
+const char *zconf_curname(void)
{
- if (current_buf)
- return current_file->name;
- else
- return "<none>";
+ return current_pos.file ? current_pos.file->name : "<none>";
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 18:41:24 +0000