[3/3] elf: Add a test for PT_LOAD segments with invalid p_align [BZ #28688]
Checks
Commit Message
Build tst-p_alignmod3.so with 256 byte page size and verify that it is
rejected with a proper error message.
---
elf/Makefile | 13 +++++++++++++
elf/tst-p_align3.c | 27 +++++++++++++++++++++++++++
elf/tst-p_align3.sh | 26 ++++++++++++++++++++++++++
elf/tst-p_alignmod3.c | 22 ++++++++++++++++++++++
4 files changed, 88 insertions(+)
create mode 100644 elf/tst-p_align3.c
create mode 100755 elf/tst-p_align3.sh
create mode 100644 elf/tst-p_alignmod3.c
@@ -385,6 +385,12 @@ tests += \
tst-p_align1 \
tst-p_align2 \
+tests-special += \
+ $(objpfx)tst-p_align3.out \
+
+modules-names += \
+ tst-p_alignmod3 \
+
endif
# Most modules build with _ISOMAC defined, but those filtered out
@@ -2026,3 +2032,10 @@ $(objpfx)tst-p_alignmod2.so: $(objpfx)tst-p_alignmod2-edit \
cp $(objpfx)tst-alignmod3.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)
new file mode 100644
@@ -0,0 +1,27 @@
+/* Check invalid p_align of PT_LOAD segments in a shared library.
+ Copyright (C) 2021 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/>. */
+
+extern int do_load_test (void);
+
+static int
+do_test (void)
+{
+ return do_load_test ();
+}
+
+#include <support/test-driver.c>
new file mode 100755
@@ -0,0 +1,26 @@
+#!/bin/sh
+# Check invalid p_align of PT_LOAD segments in a shared library.
+# Copyright (C) 2021 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 && exit 1
+grep "ELF load command address/offset not page-aligned" ${common_objpfx}elf/tst-p_align3.out
new file mode 100644
@@ -0,0 +1,22 @@
+/* Check invalid p_align of PT_LOAD segment in a shared library.
+ Copyright (C) 2021 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/>. */
+
+void
+do_load_test (void)
+{
+}