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

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>

1 files changed, 27 insertions, 0 deletions

diff --git a/elf/tst-p_align3.sh b/elf/tst-p_align3.sh
new file mode 100755
index 0000000000..688c4b34cc
--- /dev/null
+++ b/elf/tst-p_align3.sh
@@ -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