linuxloader/image-prelink/image-mklibs: Fix non-standard path prelinking

Prelinking on x86-64 wasn't working out the box as it uses /lib and
not /lib64 for libs. Prelink was refusing to link as the dynamic loader
didn't match its idea of the right path. Passing in the --dyanmic-linker
option avoids this.

We can share code from image-mklibs so abstract that into a new class,
linuxloader.bbclass.

This does break prelinking of multilib images, I've opened a bug so we
can loop back and fix that problem, the code would need to iterate the
dynamic loaders (and setup ld.so.conf files for it).

(From OE-Core rev: 7c3f2f61536cc8e0322087558cdcfe29ee2fac6d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/meta/classes/linuxloader.bbclass b/meta/classes/linuxloader.bbclass
new file mode 100644
index 0000000000..5c4dc5c51b
--- /dev/null
+++ b/meta/classes/linuxloader.bbclass
@@ -0,0 +1,24 @@
+
+linuxloader () {
+        case ${TARGET_ARCH} in
+                powerpc | mips | mipsel | microblaze )
+                        dynamic_loader="${base_libdir}/ld.so.1"
+                        ;;
+                powerpc64)
+                        dynamic_loader="${base_libdir}/ld64.so.1"
+                        ;;
+                x86_64)
+                        dynamic_loader="${base_libdir}/ld-linux-x86-64.so.2"
+                        ;;
+                i*86 )
+                        dynamic_loader="${base_libdir}/ld-linux.so.2"
+                        ;;
+                arm )
+                        dynamic_loader="${base_libdir}/ld-linux.so.3"
+                        ;;
+                * )
+                        dynamic_loader="/unknown_dynamic_linker"
+                        ;;
+        esac
+        echo $dynamic_loader
+}