log: make asserts cheaper

On my x86_64 this shrinks the size of .text by 53 KB (7 %).

1 files changed, 13 insertions, 10 deletions

diff --git a/src/log.c b/src/log.c
index 04e90eb20..f65e8d100 100644
--- a/src/log.c
+++ b/src/log.c
@@ -618,18 +618,13 @@ int log_meta(
         return r;
 }
 
-void log_assert(
-        const char*file,
-        int line,
-        const char *func,
-        const char *format, ...) {
-
+_noreturn_ static void log_assert(const char *text, const char *file, int line, const char *func, const char *format) {
         static char buffer[LINE_MAX];
-        va_list ap;
 
-        va_start(ap, format);
-        vsnprintf(buffer, sizeof(buffer), format, ap);
-        va_end(ap);
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+        snprintf(buffer, sizeof(buffer), format, text, file, line, func);
+#pragma GCC diagnostic pop
 
         char_array_0(buffer);
         log_abort_msg = buffer;
@@ -638,6 +633,14 @@ void log_assert(
         abort();
 }
 
+void log_assert_failed(const char *text, const char *file, int line, const char *func) {
+        log_assert(text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Aborting.");
+}
+
+void log_assert_failed_unreachable(const char *text, const char *file, int line, const char *func) {
+        log_assert(text, file, line, func, "Code should not be reached '%s' at %s:%u, function %s(). Aborting.");
+}
+
 int log_set_target_from_string(const char *e) {
         LogTarget t;