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Commit a702a617 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kconfig: add 'filename' and 'lineno' built-in variables 



The special variables, $(filename) and $(lineno), are expanded to a
file name and its line number being parsed, respectively.

Suggested-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
parent 1d6272e6

scripts/kconfig/preprocess.c

+16 −0
Original line number Diff line number Diff line
@@ -114,6 +114,11 @@ static char *do_error_if(int argc, char *argv[]) 
	return NULL;

}



static char *do_filename(int argc, char *argv[])

{

	return xstrdup(current_file->name);

}



static char *do_info(int argc, char *argv[])

{

	printf("%s\n", argv[0]);
@@ -121,6 +126,15 @@ static char *do_info(int argc, char *argv[]) 
	return xstrdup("");

}



static char *do_lineno(int argc, char *argv[])

{

	char buf[16];



	sprintf(buf, "%d", yylineno);



	return xstrdup(buf);

}



static char *do_shell(int argc, char *argv[])

{

	FILE *p;
@@ -173,7 +187,9 @@ static char *do_warning_if(int argc, char *argv[]) 
static const struct function function_table[] = {

	/* Name		MIN	MAX	Function */

	{ "error-if",	2,	2,	do_error_if },

	{ "filename",	0,	0,	do_filename },

	{ "info",	1,	1,	do_info },

	{ "lineno",	0,	0,	do_lineno },

	{ "shell",	1,	1,	do_shell },

	{ "warning-if",	2,	2,	do_warning_if },

};