testsuite: depmod: add module dependency outside cyclic chain
Check that depmod do not report modules outside cyclic chain
Two modules f and g are added which do not have any dependency.
modules a and b are made dependent on f and g.
Here is the output of loop dependency check test after adding this
patch:
TESTSUITE: ERR: wrong:
depmod: ERROR: Found 7 modules in dependency cycles!
depmod: ERROR: Cycle detected: mod_loop_d -> mod_loop_e -> mod_loop_d
depmod: ERROR: Cycle detected: mod_loop_b -> mod_loop_c -> mod_loop_a -> mod_loop_b
depmod: ERROR: Cycle detected: mod_loop_b -> mod_loop_c -> mod_loop_a -> mod_loop_g
depmod: ERROR: Cycle detected: mod_loop_b -> mod_loop_c -> mod_loop_a -> mod_loop_f
Buffer overflow occurs in the loop when last two lines are printed.
43 bytes buffer is allocated and 53 bytes are used.
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
diff --git a/testsuite/populate-modules.sh b/testsuite/populate-modules.sh
index 409a6de..ba1f842 100755
--- a/testsuite/populate-modules.sh
+++ b/testsuite/populate-modules.sh
@@ -16,6 +16,8 @@
["test-depmod/detect-loop/lib/modules/4.4.4/kernel/mod-loop-c.ko"]="mod-loop-c.ko"
["test-depmod/detect-loop/lib/modules/4.4.4/kernel/mod-loop-d.ko"]="mod-loop-d.ko"
["test-depmod/detect-loop/lib/modules/4.4.4/kernel/mod-loop-e.ko"]="mod-loop-e.ko"
+ ["test-depmod/detect-loop/lib/modules/4.4.4/kernel/mod-loop-f.ko"]="mod-loop-f.ko"
+ ["test-depmod/detect-loop/lib/modules/4.4.4/kernel/mod-loop-g.ko"]="mod-loop-g.ko"
["test-dependencies/lib/modules/4.0.20-kmod/kernel/fs/foo/"]="mod-foo-b.ko"
["test-dependencies/lib/modules/4.0.20-kmod/kernel/"]="mod-foo-c.ko"
["test-dependencies/lib/modules/4.0.20-kmod/kernel/lib/"]="mod-foo-a.ko"