#!/bin/bash # Copyright (C) 2015-2024 Free Software Foundation, Inc. # This file is part of the GNU C Library. # The GNU C Library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # The GNU C Library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # You should have received a copy of the GNU Lesser General Public # License along with the GNU C Library; if not, see # <https://www.gnu.org/licenses/>. # To test BZ #18872, we need a printf() with 10K arguments. # Such a printf could be generated with non-trivial macro # application, but it's simpler to generate the test source # via this script. n_args=10000 cat <<'EOF' #include <stdio.h> #include <mcheck.h> /* Compile do_test without optimization: GCC 4.9/5.0/6.0 takes a long time to build this source. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67396 */ __attribute__ ((optimize ("-O0"))) int do_test (void) { mtrace (); printf ( EOF for ((j = 0; j < $n_args / 10; j++)); do for ((k = 0; k < 10; k++)); do printf '"%%%d$s" ' $((10 * $j + $k + 1)) done printf "\n" done printf '"%%%d$s",\n' $(($n_args + 1)) for ((j = 0; j < $n_args / 10; j++)); do for ((k = 0; k < 10; k++)); do printf '"a", ' done printf " /* %4d */\n" $((10 * $j + $k)) done printf '"\\n");' cat <<'EOF' return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c" EOF