diff mbox

[v4,17/31] kconfig: add 'filename' and 'lineno' built-in variables

Message ID 1526537830-22606-18-git-send-email-yamada.masahiro@socionext.com (mailing list archive)
State New, archived
Headers show

Commit Message

Masahiro Yamada May 17, 2018, 6:16 a.m. UTC
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>
---

Changes in v4:
 - Newly added

Changes in v3: None
Changes in v2: None

 scripts/kconfig/preprocess.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Comments

Kees Cook May 17, 2018, 6:39 a.m. UTC | #1
On Wed, May 16, 2018 at 11:16 PM, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> 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>

-Kees

> ---
>
> Changes in v4:
>  - Newly added
>
> Changes in v3: None
> Changes in v2: None
>
>  scripts/kconfig/preprocess.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
> index 88844a7..c39e30e 100644
> --- a/scripts/kconfig/preprocess.c
> +++ b/scripts/kconfig/preprocess.c
> @@ -111,6 +111,11 @@ static char *do_error(int argc, char *argv[], int old_argc, char *old_argv[])
>         return NULL;
>  }
>
> +static char *do_filename(int argc, char *argv[], int old_argc, char *old_argv[])
> +{
> +       return xstrdup(current_file->name);
> +}
> +
>  static char *do_if(int argc, char *argv[], int old_argc, char *old_argv[])
>  {
>         char *cond, *p, *res;
> @@ -144,6 +149,15 @@ static char *do_info(int argc, char *argv[], int old_argc, char *old_argv[])
>         return xstrdup("");
>  }
>
> +static char *do_lineno(int argc, char *argv[], int old_argc, char *old_argv[])
> +{
> +       char buf[16];
> +
> +       sprintf(buf, "%d", yylineno);
> +
> +       return xstrdup(buf);
> +}
> +
>  static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[])
>  {
>         FILE *p;
> @@ -194,8 +208,10 @@ static char *do_warning(int argc, char *argv[], int old_argc, char *old_argv[])
>  static const struct function function_table[] = {
>         /* Name         MIN     MAX     EXP?    Function */
>         { "error",      1,      1,      true,   do_error },
> +       { "filename",   0,      0,      false,  do_filename },
>         { "if",         2,      3,      false,  do_if },
>         { "info",       1,      1,      true,   do_info },
> +       { "lineno",     0,      0,      false,  do_lineno },
>         { "shell",      1,      1,      true,   do_shell },
>         { "warning",    1,      1,      true,   do_warning },
>  };
> --
> 2.7.4
>
diff mbox

Patch

diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 88844a7..c39e30e 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -111,6 +111,11 @@  static char *do_error(int argc, char *argv[], int old_argc, char *old_argv[])
 	return NULL;
 }
 
+static char *do_filename(int argc, char *argv[], int old_argc, char *old_argv[])
+{
+	return xstrdup(current_file->name);
+}
+
 static char *do_if(int argc, char *argv[], int old_argc, char *old_argv[])
 {
 	char *cond, *p, *res;
@@ -144,6 +149,15 @@  static char *do_info(int argc, char *argv[], int old_argc, char *old_argv[])
 	return xstrdup("");
 }
 
+static char *do_lineno(int argc, char *argv[], int old_argc, char *old_argv[])
+{
+	char buf[16];
+
+	sprintf(buf, "%d", yylineno);
+
+	return xstrdup(buf);
+}
+
 static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[])
 {
 	FILE *p;
@@ -194,8 +208,10 @@  static char *do_warning(int argc, char *argv[], int old_argc, char *old_argv[])
 static const struct function function_table[] = {
 	/* Name		MIN	MAX	EXP?	Function */
 	{ "error",	1,	1,	true,	do_error },
+	{ "filename",	0,	0,	false,	do_filename },
 	{ "if",		2,	3,	false,	do_if },
 	{ "info",	1,	1,	true,	do_info },
+	{ "lineno",	0,	0,	false,	do_lineno },
 	{ "shell",	1,	1,	true,	do_shell },
 	{ "warning",	1,	1,	true,	do_warning },
 };