check-bin-arch: skip /lib/modules to allow 32-bit userland on 64-bit arch

The script check-bin-arch fails as follows on a config for PowerPC e6500
(64-bit CPU) with BR2_ARCH="powerpc" (32-bit userland desired):

ERROR: architecture for "/lib/modules/..../lib/libcrc32c.ko"
            is "PowerPC64", should be "PowerPC"

This situation is perfectly acceptable: the kernel is 64-bit and so are its
modules, even though userland is 32-bit.

To keep check-bin-arch and its caller simple, just skip /lib/modules/
entirely, like is done for /lib/firmware and some others.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/support/scripts/check-bin-arch b/support/scripts/check-bin-arch
index 887b6613cdb8f4afdc23750b2a5d0c7cef635667..f6a4569c6299973bb1495dbd6a4200bd40d20888 100755 (executable)
--- a/support/scripts/check-bin-arch
+++ b/support/scripts/check-bin-arch
@@ -29,6 +29,14 @@ while read f; do
                continue
        fi
 
+       # Skip kernel modules
+       # When building a 32-bit userland on 64-bit architectures, the kernel
+       # and its modules may still be 64-bit. To keep the basic
+       # check-bin-arch logic simple, just skip this directory.
+       if [[ "${f}" =~ ^/lib/modules/.* ]]; then
+               continue
+       fi
+
        # Skip files in /usr/share, several packages (qemu,
        # pru-software-support) legitimately install ELF binaries that
        # are not for the target architecture