blob: cd6b30ed3c3f11ec389976c92da55a23e7809550 (
plain)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
# This awk script expects to get command-line files that are each
# the output of 'readelf -l' on a single shared object.
# But the first file should contain just "execstack-no" or "execstack-yes",
# indicating what the default is in the absence of PT_GNU_STACK.
# It exits successfully (0) if none indicated executable stack.
# It fails (1) if any did indicate executable stack.
# It fails (2) if the input did not take the expected form.
BEGIN {
result = sanity = 0; default_exec = -1;
split(xfail, xfails, " ");
for (x in xfails)
expected_fails[xfails[x] ".phdr"] = 1;
}
/^execstack-no$/ { default_exec = 0; next }
/^execstack-yes$/ { default_exec = 1; next }
function check_one(name) {
if (default_exec == -1) {
print "*** missing execstack-default file?";
result = 2;
}
n = split(name, parts, "/");
basename = parts[n];
expected_fail = basename in expected_fails;
if (!sanity) {
print name ": *** input did not look like readelf -l output";
result = 2;
} else if (stack_line) {
if (stack_line ~ /^.*RW .*$/) {
print name ": OK";
} else if (stack_line ~ /^.*E.*$/) {
if (expected_fail) {
print name ": *** executable stack signaled, expected";
} else {
print name ": *** executable stack signaled";
result = result ? result : 1;
}
}
} else if (default_exec) {
if (expected_fail) {
print name ": *** no PT_GNU_STACK entry, expected";
} else {
print name ": *** no PT_GNU_STACK entry";
result = result ? result : 1;
}
} else {
print name ": no PT_GNU_STACK but default is OK";
}
sanity = 0;
}
FILENAME != lastfile {
if (lastfile)
check_one(lastfile);
lastfile = FILENAME;
}
$1 == "Type" && $7 == "Flg" { sanity = 1; stack_line = "" }
$1 == "GNU_STACK" { stack_line = $0 }
END {
check_one(lastfile);
exit(result);
}
|
