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elf: Add a test for PT_LOAD segments with invalid p_align [BZ #28688]

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Build tst-p_alignmod3.so with 256 byte page size and verify that it is
rejected with a proper error message.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
H.J. Lu 2021-12-21 13:42:28 -08:00
parent e4c9268d15
commit d8d94863ef
4 changed files with 88 additions and 0 deletions
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9
elf/Makefile
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@ -417,6 +417,7 @@ tests += \
tst-p_alignmod2-edit \
tst-p_align1 \
tst-p_align2 \
tst-p_align3 \
tst-relsort1 \
tst-ro-dynamic \
tst-rtld-run-static \
@ -742,6 +743,7 @@ modules-names = \
tst-nodelete-opened-lib \
tst-null-argv-lib \
tst-p_alignmod-base \
tst-p_alignmod3 \
tst-relsort1mod1 \
tst-relsort1mod2 \
tst-ro-dynamic-mod \
@ -2622,3 +2624,10 @@ $(objpfx)tst-p_alignmod2.so: $(objpfx)tst-p_alignmod2-edit \
cp $(objpfx)tst-p_alignmod-base.so $@
$(test-wrapper-env) $(run-program-env) $(rtld-prefix) \
$(objpfx)tst-p_alignmod2-edit $@
LDFLAGS-tst-p_alignmod3.so += -Wl,-z,max-page-size=0x100,-z,common-page-size=0x100
$(objpfx)tst-p_align3: $(objpfx)tst-p_alignmod3.so
$(objpfx)tst-p_align3.out: tst-p_align3.sh $(objpfx)tst-p_align3
$(SHELL) $< $(common-objpfx) '$(test-program-prefix)'; \
$(evaluate-test)

27
elf/tst-p_align3.c Normal file
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@ -0,0 +1,27 @@
/* Check invalid p_align of PT_LOAD segments in a shared library.
Copyright (C) 2022 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/>. */
#include "tst-p_align.h"
static int
do_test (void)
{
return do_load_test ();
}
#include <support/test-driver.c>

27
elf/tst-p_align3.sh Executable file
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@ -0,0 +1,27 @@
#!/bin/sh
# Check invalid p_align of PT_LOAD segments in a shared library.
# Copyright (C) 2022 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/>.
common_objpfx=$1; shift
test_program_prefix=$1; shift
${test_program_prefix} \
${common_objpfx}elf/tst-p_align3 \
2> ${common_objpfx}elf/tst-p_align3.out
test $? -ne 127 && exit 1
grep "ELF load command address/offset not page-aligned" ${common_objpfx}elf/tst-p_align3.out

25
elf/tst-p_alignmod3.c Normal file
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@ -0,0 +1,25 @@
/* Check invalid p_align of PT_LOAD segment in a shared library.
Copyright (C) 2022 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/>. */
#include "tst-p_align.h"
int
do_load_test (void)
{
return 0;
}