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Rodriguez" , linux-kernel@vger.kernel.org, Nicholas Piggin , Kees Cook , Emese Revfy , x86@kernel.org, Masahiro Yamada Subject: [PATCH v4 15/31] kconfig: add 'info', 'warning', and 'error' built-in functions Date: Thu, 17 May 2018 15:16:54 +0900 Message-Id: <1526537830-22606-16-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526537830-22606-1-git-send-email-yamada.masahiro@socionext.com> References: <1526537830-22606-1-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 Add 'info', 'warning', and 'error' functions as in Make. They print messages during parsing Kconfig files. 'error' will be useful to terminate the parsing immediately in fatal cases. Signed-off-by: Masahiro Yamada --- Changes in v4: - Add 'error' function Changes in v3: None Changes in v2: None scripts/kconfig/preprocess.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) -- 2.7.4 Reviewed-by: Kees Cook diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c index 47b32dc..591bcf7 100644 --- a/scripts/kconfig/preprocess.c +++ b/scripts/kconfig/preprocess.c @@ -104,6 +104,20 @@ struct function { char *(*func)(int argc, char *argv[], int old_argc, char *old_argv[]); }; +static char *do_error(int argc, char *argv[], int old_argc, char *old_argv[]) +{ + pperror("%s", argv[0]); + + return NULL; +} + +static char *do_info(int argc, char *argv[], int old_argc, char *old_argv[]) +{ + printf("%s\n", argv[0]); + + return xstrdup(""); +} + static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[]) { FILE *p; @@ -144,9 +158,19 @@ static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[]) return xstrdup(buf); } +static char *do_warning(int argc, char *argv[], int old_argc, char *old_argv[]) +{ + fprintf(stderr, "%s:%d: %s\n", current_file->name, yylineno, argv[0]); + + return xstrdup(""); +} + static const struct function function_table[] = { /* Name MIN MAX EXP? Function */ + { "error", 1, 1, true, do_error }, + { "info", 1, 1, true, do_info }, { "shell", 1, 1, true, do_shell }, + { "warning", 1, 1, true, do_warning }, }; #define FUNCTION_MAX_ARGS 16