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kconfig: detect recursive inclusion earlier

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Currently, the recursive inclusion is not detected when the offending
file is about to be included; it is detected the offending file is
about to include the *next* file.  This is because the detection loop
does not involve the file being included.

Do this check against the file that is about to be included so that
the recursive inclusion is detected before unneeded parsing happens.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2018-03-23 02:00:13 +09:00
parent 32a94b8b0c
commit 379a8eb8eb
1 changed files with 8 additions and 6 deletions
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14
scripts/kconfig/zconf.l
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@ -325,23 +325,25 @@ void zconf_nextfile(const char *name)
buf->parent = current_buf;
current_buf = buf;
for (iter = current_file->parent; iter; iter = iter->parent ) {
if (!strcmp(current_file->name,iter->name) ) {
file->parent = current_file;
for (iter = current_file; iter; iter = iter->parent) {
if (!strcmp(iter->name, file->name)) {
fprintf(stderr,
"Recursive inclusion detected.\n"
"Inclusion path:\n"
" current file : %s\n", zconf_curname());
iter = current_file;
" current file : %s\n", file->name);
iter = file;
do {
iter = iter->parent;
fprintf(stderr, " included from: %s:%d\n",
iter->name, iter->lineno - 1);
} while (strcmp(iter->name, current_file->name));
} while (strcmp(iter->name, file->name));
exit(1);
}
}
file->lineno = 1;
file->parent = current_file;
current_file = file;
}