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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-28 18:21:54 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-29 03:31:19 +0900
commita702a6176e2fea9ae366a7345247eb886e4cc730 (patch)
treee08bdefac418225fec1a8ac0aff85d379df03c0e /scripts/kconfig/preprocess.c
parent1d6272e6fe43bc45c7ee58170d91d7242a71296b (diff)
downloadlinux-stericsson-a702a6176e2fea9ae366a7345247eb886e4cc730.tar.gz
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: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'scripts/kconfig/preprocess.c')
-rw-r--r--scripts/kconfig/preprocess.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 5ee58eeb9a7d..0574039238c6 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -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 },
};