more info for error logging
MODIFY
instrumentation/afl-compiler-rt.o.c
instrumentation/afl-compiler-rt.o.c
@@ -630,7 +630,9 @@ static void __afl_unmap_shm(void) {
}
-void write_error(char *text) {
+#define write_error(text) write_error_with_location(text, __FILE__, __LINE__)
+
+void write_error_with_location(char *text, char* filename, int linenumber) {
u8 * o = getenv("__AFL_OUT_DIR");
char *e = strerror(errno);
@@ -643,14 +645,14 @@ void write_error(char *text) {
if (f) {
- fprintf(f, "Error(%s): %s\n", text, e);
+ fprintf(f, "File %s, line %d: Error(%s): %s\n", filename, linenumber, text, e);
fclose(f);
}
}
- fprintf(stderr, "Error(%s): %s\n", text, e);
+ fprintf(stderr, "File %s, line %d: Error(%s): %s\n", filename, linenumber, text, e);
}
@@ -2079,3 +2081,4 @@ void __afl_coverage_interesting(u8 val, u32 id) {
}
+#undef write_error

more info for error logging