linux - tools/objtool/tests/generic/test-new-data.sh

27 lines · 905 B

1	#!/bin/bash
2	# SPDX-License-Identifier: GPL-2.0
3	#
4	# Data added by the patch has no counterpart in the running kernel and must be
5	# carried into the livepatch.
6
7	. "$(dirname "$0")/../lib.sh"
8
9	setup
10	build_pair new_data.c
11
12	# State the premise on both sides. The array is new in the patched build and
13	# absent from the original; if the compiler folded it into the code instead of
14	# emitting it, the assertion below would fail without saying why.
15	has_input_symbol "$orig_obj" klp_new_data &&
16	fail "fixture put klp_new_data in the original; nothing new to carry"
17	has_input_symbol "$patched_obj" klp_new_data \|\|
18	fail "compiler did not emit klp_new_data; the fixture tests nothing"
19	in_relocs "$patched_obj" \| grep -q 'klp_new_data' \|\|
20	fail "target() does not reference klp_new_data; the fixture tests nothing"
21
22	run_diff
23
24	assert_patched target
25	assert_symbol klp_new_data
26
27	pass "new data carried into the patch"