elf: Add a test for PT_LOAD segments with p_align == 1 [BZ #28688]
Add tst-p_alignmod2-edit to edit the copy of tst-p_alignmod-base.so to set p_align of the first PT_LOAD segment to 1 and verify that the shared library can be loaded normally. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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13
elf/Makefile
13
elf/Makefile
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@ -414,7 +414,9 @@ tests += \
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tst-noload \
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tst-noload \
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tst-null-argv \
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tst-null-argv \
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tst-p_alignmod1-edit \
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tst-p_alignmod1-edit \
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tst-p_alignmod2-edit \
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tst-p_align1 \
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tst-p_align1 \
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tst-p_align2 \
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tst-relsort1 \
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tst-relsort1 \
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tst-ro-dynamic \
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tst-ro-dynamic \
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tst-rtld-run-static \
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tst-rtld-run-static \
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@ -2609,3 +2611,14 @@ $(objpfx)tst-p_alignmod1.so: $(objpfx)tst-p_alignmod1-edit \
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cp $(objpfx)tst-p_alignmod-base.so $@
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cp $(objpfx)tst-p_alignmod-base.so $@
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$(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
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$(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
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$(objpfx)tst-p_alignmod1-edit $@
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$(objpfx)tst-p_alignmod1-edit $@
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$(objpfx)tst-p_align2: $(objpfx)tst-p_alignmod2.so
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# Make a copy of tst-p_alignmod-base.so and update p_align of the first
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# PT_LOAD segment.
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$(objpfx)tst-p_alignmod2.so: $(objpfx)tst-p_alignmod2-edit \
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$(objpfx)tst-p_alignmod-base.so
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rm -f $@
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cp $(objpfx)tst-p_alignmod-base.so $@
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$(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
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$(objpfx)tst-p_alignmod2-edit $@
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27
elf/tst-p_align2.c
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27
elf/tst-p_align2.c
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@ -0,0 +1,27 @@
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/* Check different alignments of PT_LOAD segments in a shared library.
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Copyright (C) 2022 Free Software Foundation, Inc.
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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
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include "tst-p_align.h"
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static int
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do_test (void)
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{
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return do_load_test ();
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}
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#include <support/test-driver.c>
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27
elf/tst-p_alignmod2-edit.c
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27
elf/tst-p_alignmod2-edit.c
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@ -0,0 +1,27 @@
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/* Set p_align of the first PT_LOAD segment to 1.
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Copyright (C) 2022 Free Software Foundation, Inc.
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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
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include "tst-elf-edit.h"
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/* Set p_align to 1. */
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static size_t
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update_p_align (size_t p_align __attribute__ ((unused)))
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{
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return 1;
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}
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