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Rodriguez" , Randy Dunlap , Ulf Magnusson , Sam Ravnborg , Linus Torvalds , Masahiro Yamada Subject: [PATCH v5 17/31] kconfig: add 'filename' and 'lineno' built-in variables Date: Mon, 28 May 2018 18:21:54 +0900 Message-Id: <1527499328-13213-18-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1527499328-13213-1-git-send-email-yamada.masahiro@socionext.com> References: <1527499328-13213-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The special variables, $(filename) and $(lineno), are expanded to a file name and its line number being parsed, respectively. Suggested-by: Randy Dunlap Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook --- Changes in v5: None Changes in v4: - Newly added Changes in v3: None Changes in v2: None scripts/kconfig/preprocess.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) -- 2.7.4 diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c index 5ee58ee..0574039 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 }, };