insane: add test for -dev packaging containing real libraries

PN-dev packages should generally contain the link-time symlinks from libfoo.so
to the real libraries.  If a recipe installs a real library named libfoo.so
there's a very good chance that it's a loadable module and should be in another
package.

(From OE-Core rev: 47d38d4d86ec6a8c143603ef4d0f056f5a5d9ceb)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/insane.bbclass

@@ -38,7 +38,7 @@ ERROR_QA ?= "dev-so debug-deps dev-deps debug-files arch pkgconfig la \
             perms dep-cmp pkgvarcheck perm-config perm-line perm-link \
             split-strip packages-list pkgv-undefined var-undefined \
             version-going-backwards expanded-d invalid-chars \
-            license-checksum \
+            license-checksum dev-elf \
             "
 FAKEROOT_QA = "host-user-contaminated"
 FAKEROOT_QA[doc] = "QA tests which need to run under fakeroot. If any \
@@ -275,6 +275,17 @@ def package_qa_check_dev(path, name, d, elf, messages):
         package_qa_add_message(messages, "dev-so", "non -dev/-dbg/nativesdk- package contains symlink .so: %s path '%s'" % \
                  (name, package_qa_clean_path(path,d)))
 
+QAPATHTEST[dev-elf] = "package_qa_check_dev_elf"
+def package_qa_check_dev_elf(path, name, d, elf, messages):
+    """
+    Check that -dev doesn't contain real shared libraries.  The test has to
+    check that the file is not a link and is an ELF object as some recipes
+    install link-time .so files that are linker scripts.
+    """
+    if name.endswith("-dev") and path.endswith(".so") and not os.path.islink(path) and elf:
+        package_qa_add_message(messages, "dev-elf", "-dev package contains non-symlink .so: %s path '%s'" % \
+                 (name, package_qa_clean_path(path,d)))
+
 QAPATHTEST[staticdev] = "package_qa_check_staticdev"
 def package_qa_check_staticdev(path, name, d, elf, messages):
     """