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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-07-20 02:49:44 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-07-20 03:28:14 +0200
commit2d5c41ded92bf1247ba2a29ad2074cf79dc15669 (patch)
tree9580c356237bb892e525b279d28714eae0aaf9fa /scripts/check-execstack.awk
parent8ba1520e8c72ad0e2a33235625b37002c2715706 (diff)
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check-execstack: Permit sysdeps to xfail some libs
* scripts/check-execstack.awk: Consider `xfail' variable containing a list of libraries whose stack executability is expected. * elf/Makefile ($(objpfx)check-execstack.out): Pass $(check-execstack-xfail) to check-execstack.awk through `xfail' variable. * sysdeps/mach/hurd/i386/Makefile (check-execstack-xfail): Set to ld.so libc.so libpthread.so.
Diffstat (limited to 'scripts/check-execstack.awk')
-rw-r--r--scripts/check-execstack.awk27
1 files changed, 22 insertions, 5 deletions
diff --git a/scripts/check-execstack.awk b/scripts/check-execstack.awk
index 21d37e9..cd6b30e 100644
--- a/scripts/check-execstack.awk
+++ b/scripts/check-execstack.awk
@@ -6,7 +6,12 @@
# It fails (1) if any did indicate executable stack.
# It fails (2) if the input did not take the expected form.
-BEGIN { result = sanity = 0; default_exec = -1 }
+BEGIN {
+ result = sanity = 0; default_exec = -1;
+ split(xfail, xfails, " ");
+ for (x in xfails)
+ expected_fails[xfails[x] ".phdr"] = 1;
+}
/^execstack-no$/ { default_exec = 0; next }
/^execstack-yes$/ { default_exec = 1; next }
@@ -17,6 +22,10 @@ function check_one(name) {
result = 2;
}
+ n = split(name, parts, "/");
+ basename = parts[n];
+ expected_fail = basename in expected_fails;
+
if (!sanity) {
print name ": *** input did not look like readelf -l output";
result = 2;
@@ -24,12 +33,20 @@ function check_one(name) {
if (stack_line ~ /^.*RW .*$/) {
print name ": OK";
} else if (stack_line ~ /^.*E.*$/) {
- print name ": *** executable stack signaled";
- result = result ? result : 1;
+ if (expected_fail) {
+ print name ": *** executable stack signaled, expected";
+ } else {
+ print name ": *** executable stack signaled";
+ result = result ? result : 1;
+ }
}
} else if (default_exec) {
- print name ": *** no PT_GNU_STACK entry";
- result = result ? result : 1;
+ 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";
}