blob: 142f94bd38ecf2404b2adde6192163b74f0904b4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# A cloned __jump_table entry must keep a relocation in its key slot, whether
# the key needs a klp relocation or not.
. "$(dirname "$0")/../lib.sh"
key=klp_test_key
setup
build_pair jump_label.c
has_input_section orig.o __jump_table ||
probe_skip "fixture produced no __jump_table on this arch"
key_slot_relocs()
{
out_relocs | awk '/rela__jump_table/,/^$/' | grep -c "^0*8[[:space:]]"
}
# Unexported: klp relocation, key slot holds a tombstone.
export_syms
run_diff
[ "$(key_slot_relocs)" = 1 ] ||
fail "unexported key: key slot has no relocation"
out_relocs | awk '/rela__jump_table/,/^$/' | grep -q "\.klp\.tombstone\.$key" ||
fail "unexported key: expected a .klp.tombstone.$key relocation"
out_symbols | grep -q "\.klp\.sym\..*\.$key," ||
fail "unexported key: no .klp.sym reference for the real relocation"
# Exported: ordinary relocation, no klp machinery.
export_syms "$key"
run_diff
[ "$(key_slot_relocs)" = 1 ] ||
fail "exported key: key slot has no relocation"
out_relocs | awk '/rela__jump_table/,/^$/' | grep -q "[[:space:]]$key[[:space:]]*+" ||
fail "exported key: expected a direct relocation to $key"
out_symbols | grep -q '\.klp\.tombstone\.' &&
fail "exported key: tombstone emitted for an exported symbol"
pass "key slot populated for exported and unexported vmlinux keys"
|
