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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-11-03 23:27:46 +0100
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-11-06 22:21:59 +0100
commite286a674419d31cb0757dd2f8307d8b4756cf1f9 (patch)
tree6f79c58793acb4df16ac974b64ae6307cd28a0e2 /extra/config/zconf.l
parentacfc107a50344b100b9ea492678928acc047c6ae (diff)
pull kconfig from linux-3.11
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'extra/config/zconf.l')
-rw-r--r--extra/config/zconf.l63
1 files changed, 34 insertions, 29 deletions
diff --git a/extra/config/zconf.l b/extra/config/zconf.l
index 21ff69c9a..6555a4754 100644
--- a/extra/config/zconf.l
+++ b/extra/config/zconf.l
@@ -1,5 +1,5 @@
-%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
%{
@@ -14,7 +14,6 @@
#include <string.h>
#include <unistd.h>
-#define LKC_DIRECT_LINK
#include "lkc.h"
#define START_STRSIZE 16
@@ -39,15 +38,15 @@ static int last_ts, first_ts;
static void zconf_endhelp(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_size = 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) {
@@ -61,9 +60,9 @@ void append_string(const char *str, int size)
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;
}
@@ -96,7 +95,7 @@ n [A-Za-z0-9_]
<COMMAND>{
{n}+ {
- struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+ const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
BEGIN(PARAM);
current_pos.file = current_file;
current_pos.lineno = current_file->lineno;
@@ -132,7 +131,7 @@ n [A-Za-z0-9_]
\n BEGIN(INITIAL); current_file->lineno++; return T_EOL;
--- /* ignore */
({n}|[-/.])+ {
- struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+ const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
if (id && id->flags & TF_PARAM) {
zconflval.id = id;
return id->token;
@@ -289,42 +288,50 @@ 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("%s:%d: do not source '%s' from itself\n",
- zconf_curname(), zconf_lineno(), name);
- exit(1);
- }
- if (file->flags & FILE_SCANNED) {
- printf("%s:%d: file '%s' is already sourced from '%s'\n",
- zconf_curname(), zconf_lineno(), name,
- file->parent->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;
@@ -334,8 +341,6 @@ 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;
@@ -353,7 +358,7 @@ int zconf_lineno(void)
return current_pos.lineno;
}
-char *zconf_curname(void)
+const char *zconf_curname(void)
{
return current_pos.file ? current_pos.file->name : "<none>";
}