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Fix BZ #18872 -- memory leak in printf_positional.
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Paul Pluzhnikov
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Sep 16, 2015
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Original file line number | Diff line number | Diff line change |
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#!/bin/bash | ||
# Copyright (C) 2015 Free Software Foundation, Inc. | ||
# This file is part of the GNU C Library. | ||
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# 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. | ||
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# 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. | ||
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# You should have received a copy of the GNU Lesser General Public | ||
# License along with the GNU C Library; if not, see | ||
# <http://www.gnu.org/licenses/>. | ||
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# 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. | ||
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n_args=10000 | ||
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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 */ | ||
#pragma GCC push_options | ||
#pragma GCC optimize ("-O0") | ||
int do_test (void) | ||
{ | ||
mtrace (); | ||
printf ( | ||
EOF | ||
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for ((j = 0; j < $n_args / 10; j++)); do | ||
for ((k = 0; k < 10; k++)); do | ||
printf '"%%%d$s" ' $((10 * $j + $k + 1)) | ||
done | ||
printf "\n" | ||
done | ||
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printf '"%%%d$s",\n' $(($n_args + 1)) | ||
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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 | ||
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printf '"\\n");' | ||
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cat <<'EOF' | ||
return 0; | ||
} | ||
#pragma GCC pop_options | ||
#define TEST_FUNCTION do_test () | ||
#include "../test-skeleton.c" | ||
EOF |
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