shithub: libmujs

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Fix call stack overflow triggering off-by-one too late.

Thanks to katlogic <kat@lua.cz> for spotting the error.

--- a/jsrun.c

+++ b/jsrun.c

@@ -1020,8 +1020,9 @@

 static void jsR_pushtrace(js_State *J, const char *name, const char *file, int line)

 {

-	if (++J->tracetop == JS_ENVLIMIT)

+	if (J->tracetop + 1 == JS_ENVLIMIT)

 		js_error(J, "call stack overflow");

+	++J->tracetop;

 	J->trace[J->tracetop].name = name;

 	J->trace[J->tracetop].file = file;

 	J->trace[J->tracetop].line = line;