On Wed, May 16, 2018 at 11:16 PM, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> > Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -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 > -- Kees Cook Pixel Security -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html